* [PATCH v3 0/3] mm/slub: some debug enhancements
@ 2022-07-27 7:10 Feng Tang
2022-07-27 7:10 ` [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc Feng Tang
` (2 more replies)
0 siblings, 3 replies; 31+ messages in thread
From: Feng Tang @ 2022-07-27 7:10 UTC (permalink / raw)
To: Andrew Morton, Vlastimil Babka, Christoph Lameter, Pekka Enberg,
David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo,
linux-mm, linux-kernel
Cc: Dave Hansen, Robin Murphy, John Garry, Kefeng Wang, Feng Tang
kmalloc's API family is critical for mm, and one of its nature is that
it will round up the request size to a fixed one (mostly power of 2).
When user requests memory for '2^n + 1' bytes, actually 2^(n+1) bytes
could be allocated, so in worst case, there is around 50% memory space
waste.
The wastage is not a big issue for requests that get allocated/freed
quickly, but may cause problems with objects that have longer life time,
and there were some OOM cases in some extrem cases.
This patchset tries to :
* Add a debug method to track each kmalloced object's wastage info,
and show the call stack of original allocation
* Extend the redzone sanity check to the extra kmalloced buffer than
requested, to better detect un-legitimate access to it.
Please help to review, thanks!
- Feng
---
Changelogs:
since v2:
* rebased against slab tree's 'for-next' branch
* fix pointer handling (Kefeng Wang)
* move kzalloc zeroing handling change to a separate patch (Vlastimil Babka)
* make 'orig_size' only depend on KMALLOC & STORE_USER flag
bits (Vlastimil Babka)
since v1:
* limit the 'orig_size' to kmalloc objects only, and save
it after track in metadata (Vlastimil Babka)
* fix a offset calculation problem in print_trailer
since RFC:
* fix problems in kmem_cache_alloc_bulk() and records sorting,
improve the print format (Hyeonggon Yoo)
* fix a compiling issue found by 0Day bot
* update the commit log based info from iova developers
Feng Tang (3):
mm/slub: enable debugging memory wasting of kmalloc
mm/slub: only zero the requested size of buffer for kzalloc
mm/slub: extend redzone check to cover extra allocated kmalloc space
than requested
include/linux/slab.h | 2 +
mm/slab.c | 8 +--
mm/slab.h | 9 ++-
mm/slub.c | 157 ++++++++++++++++++++++++++++++++++++-------
4 files changed, 146 insertions(+), 30 deletions(-)
--
2.27.0
^ permalink raw reply [flat|nested] 31+ messages in thread* [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc 2022-07-27 7:10 [PATCH v3 0/3] mm/slub: some debug enhancements Feng Tang @ 2022-07-27 7:10 ` Feng Tang 2022-07-27 10:20 ` Christoph Lameter 2022-07-27 7:10 ` [PATCH v3 2/3] mm/slub: only zero the requested size of buffer for kzalloc Feng Tang 2022-07-27 7:10 ` [PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested Feng Tang 2 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-07-27 7:10 UTC (permalink / raw) To: Andrew Morton, Vlastimil Babka, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, linux-mm, linux-kernel Cc: Dave Hansen, Robin Murphy, John Garry, Kefeng Wang, Feng Tang kmalloc's API family is critical for mm, with one nature that it will round up the request size to a fixed one (mostly power of 2). Say when user requests memory for '2^n + 1' bytes, actually 2^(n+1) bytes could be allocated, so in worst case, there is around 50% memory space waste. The wastage is not a big issue for requests that get allocated/freed quickly, but may cause problems with objects that have longer life time. We've met a kernel boot OOM panic (v5.10), and from the dumped slab info: [ 26.062145] kmalloc-2k 814056KB 814056KB From debug we found there are huge number of 'struct iova_magazine', whose size is 1032 bytes (1024 + 8), so each allocation will waste 1016 bytes. Though the issue was solved by giving the right (bigger) size of RAM, it is still nice to optimize the size (either use a kmalloc friendly size or create a dedicated slab for it). And from lkml archive, there was another crash kernel OOM case [1] back in 2019, which seems to be related with the similar slab waste situation, as the log is similar: [ 4.332648] iommu: Adding device 0000:20:02.0 to group 16 [ 4.338946] swapper/0 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null), order=0, oom_score_adj=0 ... [ 4.857565] kmalloc-2048 59164KB 59164KB The crash kernel only has 256M memory, and 59M is pretty big here. (Note: the related code has been changed and optimised in recent kernel [2], these logs are picked just to demo the problem) So add an way to track each kmalloc's memory waste info, and leverage the existing SLUB debug framework to show its call stack of original allocation, so that user can evaluate the waste situation, identify some hot spots and optimize accordingly, for a better utilization of memory. The waste info is integrated into existing interface: /sys/kernel/debug/slab/kmalloc-xx/alloc_traces, one example of 'kmalloc-4k' after boot is: 126 ixgbe_alloc_q_vector+0xa5/0x4a0 [ixgbe] waste=233856/1856 age=1493302/1493830/1494358 pid=1284 cpus=32 nodes=1 __slab_alloc.isra.86+0x52/0x80 __kmalloc_node+0x143/0x350 ixgbe_alloc_q_vector+0xa5/0x4a0 [ixgbe] ixgbe_init_interrupt_scheme+0x1a6/0x730 [ixgbe] ixgbe_probe+0xc8e/0x10d0 [ixgbe] local_pci_probe+0x42/0x80 work_for_cpu_fn+0x13/0x20 process_one_work+0x1c5/0x390 which means in 'kmalloc-4k' slab, there are 126 requests of 2240 bytes which got a 4KB space (wasting 1856 bytes each and 233856 bytes in total). And when system starts some real workload like multiple docker instances, there are more severe waste. [1]. https://lkml.org/lkml/2019/8/12/266 [2]. https://lore.kernel.org/lkml/2920df89-9975-5785-f79b-257d3052dfaf@huawei.com/ [Thanks Hyeonggon for pointing out several bugs about sorting/format] [Thanks Vlastimil for suggesting way to reduce memory usage of orig_size and keep it only for kmalloc objects] Signed-off-by: Feng Tang <feng.tang@intel.com> --- include/linux/slab.h | 2 + mm/slub.c | 99 ++++++++++++++++++++++++++++++++++++-------- 2 files changed, 83 insertions(+), 18 deletions(-) diff --git a/include/linux/slab.h b/include/linux/slab.h index 0fefdf528e0d..a713b0e5bbcd 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -29,6 +29,8 @@ #define SLAB_RED_ZONE ((slab_flags_t __force)0x00000400U) /* DEBUG: Poison objects */ #define SLAB_POISON ((slab_flags_t __force)0x00000800U) +/* Indicate a kmalloc slab */ +#define SLAB_KMALLOC ((slab_flags_t __force)0x00001000U) /* Align objs on cache lines */ #define SLAB_HWCACHE_ALIGN ((slab_flags_t __force)0x00002000U) /* Use GFP_DMA memory */ diff --git a/mm/slub.c b/mm/slub.c index 862dbd9af4f5..2e046cc10b84 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -191,6 +191,12 @@ static inline bool kmem_cache_debug(struct kmem_cache *s) return kmem_cache_debug_flags(s, SLAB_DEBUG_FLAGS); } +static inline bool slub_debug_orig_size(struct kmem_cache *s) +{ + return (kmem_cache_debug_flags(s, SLAB_STORE_USER) && + (s->flags & SLAB_KMALLOC)); +} + void *fixup_red_left(struct kmem_cache *s, void *p) { if (kmem_cache_debug_flags(s, SLAB_RED_ZONE)) @@ -816,6 +822,33 @@ static void print_slab_info(const struct slab *slab) folio_flags(folio, 0)); } +static inline void set_orig_size(struct kmem_cache *s, + void *object, unsigned int orig_size) +{ + void *p = kasan_reset_tag(object); + + if (!slub_debug_orig_size(s)) + return; + + p += get_info_end(s); + p += sizeof(struct track) * 2; + + *(unsigned int *)p = orig_size; +} + +static unsigned int get_orig_size(struct kmem_cache *s, void *object) +{ + void *p = kasan_reset_tag(object); + + if (!slub_debug_orig_size(s)) + return s->object_size; + + p += get_info_end(s); + p += sizeof(struct track) * 2; + + return *(unsigned int *)p; +} + static void slab_bug(struct kmem_cache *s, char *fmt, ...) { struct va_format vaf; @@ -875,6 +908,9 @@ static void print_trailer(struct kmem_cache *s, struct slab *slab, u8 *p) if (s->flags & SLAB_STORE_USER) off += 2 * sizeof(struct track); + if (slub_debug_orig_size(s)) + off += sizeof(unsigned int); + off += kasan_metadata_size(s); if (off != size_from_object(s)) @@ -1026,10 +1062,14 @@ static int check_pad_bytes(struct kmem_cache *s, struct slab *slab, u8 *p) { unsigned long off = get_info_end(s); /* The end of info */ - if (s->flags & SLAB_STORE_USER) + if (s->flags & SLAB_STORE_USER) { /* We also have user information there */ off += 2 * sizeof(struct track); + if (s->flags & SLAB_KMALLOC) + off += sizeof(unsigned int); + } + off += kasan_metadata_size(s); if (size_from_object(s) == off) @@ -1325,7 +1365,8 @@ static inline int alloc_consistency_checks(struct kmem_cache *s, static noinline int alloc_debug_processing(struct kmem_cache *s, struct slab *slab, - void *object, unsigned long addr) + void *object, unsigned long addr, + unsigned int orig_size) { if (s->flags & SLAB_CONSISTENCY_CHECKS) { if (!alloc_consistency_checks(s, slab, object)) @@ -1335,6 +1376,9 @@ static noinline int alloc_debug_processing(struct kmem_cache *s, /* Success perform special debug activities for allocs */ if (s->flags & SLAB_STORE_USER) set_track(s, object, TRACK_ALLOC, addr); + + set_orig_size(s, object, orig_size); + trace(s, slab, object, 1); init_object(s, object, SLUB_RED_ACTIVE); return 1; @@ -1661,7 +1705,8 @@ static inline void setup_slab_debug(struct kmem_cache *s, struct slab *slab, void *addr) {} static inline int alloc_debug_processing(struct kmem_cache *s, - struct slab *slab, void *object, unsigned long addr) { return 0; } + struct slab *slab, void *object, unsigned long addr, + unsigned int orig_size) { return 0; } static inline int free_debug_processing( struct kmem_cache *s, struct slab *slab, @@ -2905,7 +2950,7 @@ static inline void *get_freelist(struct kmem_cache *s, struct slab *slab) * already disabled (which is the case for bulk allocation). */ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, - unsigned long addr, struct kmem_cache_cpu *c) + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) { void *freelist; struct slab *slab; @@ -3048,7 +3093,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, check_new_slab: if (kmem_cache_debug(s)) { - if (!alloc_debug_processing(s, slab, freelist, addr)) { + if (!alloc_debug_processing(s, slab, freelist, addr, orig_size)) { /* Slab failed checks. Next slab needed */ goto new_slab; } else { @@ -3102,7 +3147,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, * pointer. */ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, - unsigned long addr, struct kmem_cache_cpu *c) + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) { void *p; @@ -3115,7 +3160,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, c = slub_get_cpu_ptr(s->cpu_slab); #endif - p = ___slab_alloc(s, gfpflags, node, addr, c); + p = ___slab_alloc(s, gfpflags, node, addr, c, orig_size); #ifdef CONFIG_PREEMPT_COUNT slub_put_cpu_ptr(s->cpu_slab); #endif @@ -3206,7 +3251,7 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, struct list_l */ if (IS_ENABLED(CONFIG_PREEMPT_RT) || unlikely(!object || !slab || !node_match(slab, node))) { - object = __slab_alloc(s, gfpflags, node, addr, c); + object = __slab_alloc(s, gfpflags, node, addr, c, orig_size); } else { void *next_object = get_freepointer_safe(s, object); @@ -3709,7 +3754,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size, * of re-populating per CPU c->freelist */ p[i] = ___slab_alloc(s, flags, NUMA_NO_NODE, - _RET_IP_, c); + _RET_IP_, c, s->object_size); if (unlikely(!p[i])) goto error; @@ -4112,12 +4157,17 @@ static int calculate_sizes(struct kmem_cache *s) } #ifdef CONFIG_SLUB_DEBUG - if (flags & SLAB_STORE_USER) + if (flags & SLAB_STORE_USER) { /* * Need to store information about allocs and frees after * the object. */ size += 2 * sizeof(struct track); + + /* Save the original kmalloc request size */ + if (flags & SLAB_KMALLOC) + size += sizeof(unsigned int); + } #endif kasan_cache_create(s, &size, &s->flags); @@ -4842,7 +4892,7 @@ void __init kmem_cache_init(void) /* Now we can use the kmem_cache to allocate kmalloc slabs */ setup_kmalloc_cache_index_table(); - create_kmalloc_caches(0); + create_kmalloc_caches(SLAB_KMALLOC); /* Setup random freelists for each cache */ init_freelist_randomization(); @@ -5068,6 +5118,7 @@ struct location { depot_stack_handle_t handle; unsigned long count; unsigned long addr; + unsigned long waste; long long sum_time; long min_time; long max_time; @@ -5114,13 +5165,15 @@ static int alloc_loc_track(struct loc_track *t, unsigned long max, gfp_t flags) } static int add_location(struct loc_track *t, struct kmem_cache *s, - const struct track *track) + const struct track *track, + unsigned int orig_size) { long start, end, pos; struct location *l; - unsigned long caddr, chandle; + unsigned long caddr, chandle, cwaste; unsigned long age = jiffies - track->when; depot_stack_handle_t handle = 0; + unsigned int waste = s->object_size - orig_size; #ifdef CONFIG_STACKDEPOT handle = READ_ONCE(track->handle); @@ -5138,11 +5191,13 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, if (pos == end) break; - caddr = t->loc[pos].addr; - chandle = t->loc[pos].handle; - if ((track->addr == caddr) && (handle == chandle)) { + l = &t->loc[pos]; + caddr = l->addr; + chandle = l->handle; + cwaste = l->waste; + if ((track->addr == caddr) && (handle == chandle) && + (waste == cwaste)) { - l = &t->loc[pos]; l->count++; if (track->when) { l->sum_time += age; @@ -5167,6 +5222,9 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, end = pos; else if (track->addr == caddr && handle < chandle) end = pos; + else if (track->addr == caddr && handle == chandle && + waste < cwaste) + end = pos; else start = pos; } @@ -5190,6 +5248,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, l->min_pid = track->pid; l->max_pid = track->pid; l->handle = handle; + l->waste = waste; cpumask_clear(to_cpumask(l->cpus)); cpumask_set_cpu(track->cpu, to_cpumask(l->cpus)); nodes_clear(l->nodes); @@ -5208,7 +5267,7 @@ static void process_slab(struct loc_track *t, struct kmem_cache *s, for_each_object(p, s, addr, slab->objects) if (!test_bit(__obj_to_index(s, addr, p), obj_map)) - add_location(t, s, get_track(s, p, alloc)); + add_location(t, s, get_track(s, p, alloc), get_orig_size(s, p)); } #endif /* CONFIG_DEBUG_FS */ #endif /* CONFIG_SLUB_DEBUG */ @@ -6078,6 +6137,10 @@ static int slab_debugfs_show(struct seq_file *seq, void *v) else seq_puts(seq, "<not-available>"); + if (l->waste) + seq_printf(seq, " waste=%lu/%lu", + l->count * l->waste, l->waste); + if (l->sum_time != l->min_time) { seq_printf(seq, " age=%ld/%llu/%ld", l->min_time, div_u64(l->sum_time, l->count), -- 2.27.0 ^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc 2022-07-27 7:10 ` [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc Feng Tang @ 2022-07-27 10:20 ` Christoph Lameter 2022-07-27 12:59 ` Feng Tang 2022-07-27 14:12 ` Vlastimil Babka 0 siblings, 2 replies; 31+ messages in thread From: Christoph Lameter @ 2022-07-27 10:20 UTC (permalink / raw) To: Feng Tang Cc: Andrew Morton, Vlastimil Babka, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, linux-mm, linux-kernel, Dave Hansen, Robin Murphy, John Garry, Kefeng Wang On Wed, 27 Jul 2022, Feng Tang wrote: > @@ -2905,7 +2950,7 @@ static inline void *get_freelist(struct kmem_cache *s, struct slab *slab) > * already disabled (which is the case for bulk allocation). > */ > static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, > - unsigned long addr, struct kmem_cache_cpu *c) > + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) > { > void *freelist; > struct slab *slab; > @@ -3102,7 +3147,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, > * pointer. > */ > static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, > - unsigned long addr, struct kmem_cache_cpu *c) > + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) > { > void *p; > > @@ -3115,7 +3160,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, > c = slub_get_cpu_ptr(s->cpu_slab); > #endif > > - p = ___slab_alloc(s, gfpflags, node, addr, c); > + p = ___slab_alloc(s, gfpflags, node, addr, c, orig_size); > #ifdef CONFIG_PREEMPT_COUNT > slub_put_cpu_ptr(s->cpu_slab); This is modifying and making execution of standard slab functions more expensive. Could you restrict modifications to the kmalloc subsystem? kmem_cache_alloc() and friends are not doing any rounding up to power of two sizes. What is happening here is that you pass kmalloc object size info through the kmem_cache_alloc functions so that the regular allocation functions debug functionality can then save the kmalloc specific object request size. This is active even when no debugging options are enabled. Can you avoid that? Have kmalloc do the object allocation without passing through the kmalloc request size and then add the original size info to the debug field later after execution continues in the kmalloc functions? ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc 2022-07-27 10:20 ` Christoph Lameter @ 2022-07-27 12:59 ` Feng Tang 2022-07-27 14:12 ` Vlastimil Babka 1 sibling, 0 replies; 31+ messages in thread From: Feng Tang @ 2022-07-27 12:59 UTC (permalink / raw) To: Christoph Lameter Cc: Andrew Morton, Vlastimil Babka, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, linux-mm, linux-kernel, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang [-- Attachment #1: Type: text/plain, Size: 9374 bytes --] On 2022/7/27 18:20, Christoph Lameter wrote: > On Wed, 27 Jul 2022, Feng Tang wrote: > >> @@ -2905,7 +2950,7 @@ static inline void *get_freelist(struct kmem_cache *s, struct slab *slab) >> * already disabled (which is the case for bulk allocation). >> */ >> static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> - unsigned long addr, struct kmem_cache_cpu *c) >> + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) >> { >> void *freelist; >> struct slab *slab; >> @@ -3102,7 +3147,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> * pointer. >> */ >> static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> - unsigned long addr, struct kmem_cache_cpu *c) >> + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) >> { >> void *p; >> >> @@ -3115,7 +3160,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> c = slub_get_cpu_ptr(s->cpu_slab); >> #endif >> >> - p = ___slab_alloc(s, gfpflags, node, addr, c); >> + p = ___slab_alloc(s, gfpflags, node, addr, c, orig_size); >> #ifdef CONFIG_PREEMPT_COUNT >> slub_put_cpu_ptr(s->cpu_slab); > > This is modifying and making execution of standard slab functions more > expensive. Could you restrict modifications to the kmalloc subsystem? > > kmem_cache_alloc() and friends are not doing any rounding up to power of > two sizes. > > What is happening here is that you pass kmalloc object size info through > the kmem_cache_alloc functions so that the regular allocation functions > debug functionality can then save the kmalloc specific object request > size. This is active even when no debugging options are enabled. Yes, it indeed is some extra cost which I don't like either. > > Can you avoid that? Have kmalloc do the object allocation without passing > through the kmalloc request size and then add the original size info > to the debug field later after execution continues in the kmalloc functions? How about the following patch which adds no new 'orig_size' to core functions (the following 2nd, 3rd redzone debug patch may also need some changes). (Our email server has just been changed, and my mutt can't work correctly, so the format could be broken, and I attached the new patch as well. Sorry for the inconvenience!) Thanks, Feng --- diff --git a/include/linux/slab.h b/include/linux/slab.h index 0fefdf528e0d..a713b0e5bbcd 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -29,6 +29,8 @@ #define SLAB_RED_ZONE ((slab_flags_t __force)0x00000400U) /* DEBUG: Poison objects */ #define SLAB_POISON ((slab_flags_t __force)0x00000800U) +/* Indicate a kmalloc slab */ +#define SLAB_KMALLOC ((slab_flags_t __force)0x00001000U) /* Align objs on cache lines */ #define SLAB_HWCACHE_ALIGN ((slab_flags_t __force)0x00002000U) /* Use GFP_DMA memory */ diff --git a/mm/slub.c b/mm/slub.c index 862dbd9af4f5..97c21a37a6a1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -191,6 +191,12 @@ static inline bool kmem_cache_debug(struct kmem_cache *s) return kmem_cache_debug_flags(s, SLAB_DEBUG_FLAGS); } +static inline bool slub_debug_orig_size(struct kmem_cache *s) +{ + return (kmem_cache_debug_flags(s, SLAB_STORE_USER) && + (s->flags & SLAB_KMALLOC)); +} + void *fixup_red_left(struct kmem_cache *s, void *p) { if (kmem_cache_debug_flags(s, SLAB_RED_ZONE)) @@ -816,6 +822,39 @@ static void print_slab_info(const struct slab *slab) folio_flags(folio, 0)); } +static inline unsigned int *get_orig_size_pointer(struct kmem_cache *s, + void *object) +{ + void *p = kasan_reset_tag(object); + + p += get_info_end(s); + p += sizeof(struct track) * 2; + return (unsigned int *)p; +} + +static void set_orig_size(struct kmem_cache *s, + void *object, unsigned int orig_size) +{ + unsigned int *p; + + if (!slub_debug_orig_size(s)) + return; + + p = get_orig_size_pointer(s, object); + *p = orig_size; +} + +static unsigned int get_orig_size(struct kmem_cache *s, void *object) +{ + unsigned int *p; + + if (!slub_debug_orig_size(s)) + return s->object_size; + + p = get_orig_size_pointer(s, object); + return *p; +} + static void slab_bug(struct kmem_cache *s, char *fmt, ...) { struct va_format vaf; @@ -875,6 +914,9 @@ static void print_trailer(struct kmem_cache *s, struct slab *slab, u8 *p) if (s->flags & SLAB_STORE_USER) off += 2 * sizeof(struct track); + if (slub_debug_orig_size(s)) + off += sizeof(unsigned int); + off += kasan_metadata_size(s); if (off != size_from_object(s)) @@ -1026,10 +1068,14 @@ static int check_pad_bytes(struct kmem_cache *s, struct slab *slab, u8 *p) { unsigned long off = get_info_end(s); /* The end of info */ - if (s->flags & SLAB_STORE_USER) + if (s->flags & SLAB_STORE_USER) { /* We also have user information there */ off += 2 * sizeof(struct track); + if (s->flags & SLAB_KMALLOC) + off += sizeof(unsigned int); + } + off += kasan_metadata_size(s); if (size_from_object(s) == off) @@ -1335,6 +1381,7 @@ static noinline int alloc_debug_processing(struct kmem_cache *s, /* Success perform special debug activities for allocs */ if (s->flags & SLAB_STORE_USER) set_track(s, object, TRACK_ALLOC, addr); + trace(s, slab, object, 1); init_object(s, object, SLUB_RED_ACTIVE); return 1; @@ -3240,6 +3287,9 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, struct list_l init = slab_want_init_on_alloc(gfpflags, s); out: +#ifdef CONFIG_SLUB_DEBUG + set_orig_size(s, object, orig_size); +#endif slab_post_alloc_hook(s, objcg, gfpflags, 1, &object, init); return object; @@ -4112,12 +4162,17 @@ static int calculate_sizes(struct kmem_cache *s) } #ifdef CONFIG_SLUB_DEBUG - if (flags & SLAB_STORE_USER) + if (flags & SLAB_STORE_USER) { /* * Need to store information about allocs and frees after * the object. */ size += 2 * sizeof(struct track); + + /* Save the original kmalloc request size */ + if (flags & SLAB_KMALLOC) + size += sizeof(unsigned int); + } #endif kasan_cache_create(s, &size, &s->flags); @@ -4842,7 +4897,7 @@ void __init kmem_cache_init(void) /* Now we can use the kmem_cache to allocate kmalloc slabs */ setup_kmalloc_cache_index_table(); - create_kmalloc_caches(0); + create_kmalloc_caches(SLAB_KMALLOC); /* Setup random freelists for each cache */ init_freelist_randomization(); @@ -5068,6 +5123,7 @@ struct location { depot_stack_handle_t handle; unsigned long count; unsigned long addr; + unsigned long waste; long long sum_time; long min_time; long max_time; @@ -5114,13 +5170,15 @@ static int alloc_loc_track(struct loc_track *t, unsigned long max, gfp_t flags) } static int add_location(struct loc_track *t, struct kmem_cache *s, - const struct track *track) + const struct track *track, + unsigned int orig_size) { long start, end, pos; struct location *l; - unsigned long caddr, chandle; + unsigned long caddr, chandle, cwaste; unsigned long age = jiffies - track->when; depot_stack_handle_t handle = 0; + unsigned int waste = s->object_size - orig_size; #ifdef CONFIG_STACKDEPOT handle = READ_ONCE(track->handle); @@ -5138,11 +5196,13 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, if (pos == end) break; - caddr = t->loc[pos].addr; - chandle = t->loc[pos].handle; - if ((track->addr == caddr) && (handle == chandle)) { + l = &t->loc[pos]; + caddr = l->addr; + chandle = l->handle; + cwaste = l->waste; + if ((track->addr == caddr) && (handle == chandle) && + (waste == cwaste)) { - l = &t->loc[pos]; l->count++; if (track->when) { l->sum_time += age; @@ -5167,6 +5227,9 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, end = pos; else if (track->addr == caddr && handle < chandle) end = pos; + else if (track->addr == caddr && handle == chandle && + waste < cwaste) + end = pos; else start = pos; } @@ -5190,6 +5253,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, l->min_pid = track->pid; l->max_pid = track->pid; l->handle = handle; + l->waste = waste; cpumask_clear(to_cpumask(l->cpus)); cpumask_set_cpu(track->cpu, to_cpumask(l->cpus)); nodes_clear(l->nodes); @@ -5208,7 +5272,7 @@ static void process_slab(struct loc_track *t, struct kmem_cache *s, for_each_object(p, s, addr, slab->objects) if (!test_bit(__obj_to_index(s, addr, p), obj_map)) - add_location(t, s, get_track(s, p, alloc)); + add_location(t, s, get_track(s, p, alloc), get_orig_size(s, p)); } #endif /* CONFIG_DEBUG_FS */ #endif /* CONFIG_SLUB_DEBUG */ @@ -6078,6 +6142,10 @@ static int slab_debugfs_show(struct seq_file *seq, void *v) else seq_puts(seq, "<not-available>"); + if (l->waste) + seq_printf(seq, " waste=%lu/%lu", + l->count * l->waste, l->waste); + if (l->sum_time != l->min_time) { seq_printf(seq, " age=%ld/%llu/%ld", l->min_time, div_u64(l->sum_time, l->count), [-- Attachment #2: kmalloc_debug.patch --] [-- Type: text/x-patch, Size: 6660 bytes --] diff --git a/include/linux/slab.h b/include/linux/slab.h index 0fefdf528e0d..a713b0e5bbcd 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -29,6 +29,8 @@ #define SLAB_RED_ZONE ((slab_flags_t __force)0x00000400U) /* DEBUG: Poison objects */ #define SLAB_POISON ((slab_flags_t __force)0x00000800U) +/* Indicate a kmalloc slab */ +#define SLAB_KMALLOC ((slab_flags_t __force)0x00001000U) /* Align objs on cache lines */ #define SLAB_HWCACHE_ALIGN ((slab_flags_t __force)0x00002000U) /* Use GFP_DMA memory */ diff --git a/mm/slub.c b/mm/slub.c index 862dbd9af4f5..97c21a37a6a1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -191,6 +191,12 @@ static inline bool kmem_cache_debug(struct kmem_cache *s) return kmem_cache_debug_flags(s, SLAB_DEBUG_FLAGS); } +static inline bool slub_debug_orig_size(struct kmem_cache *s) +{ + return (kmem_cache_debug_flags(s, SLAB_STORE_USER) && + (s->flags & SLAB_KMALLOC)); +} + void *fixup_red_left(struct kmem_cache *s, void *p) { if (kmem_cache_debug_flags(s, SLAB_RED_ZONE)) @@ -816,6 +822,39 @@ static void print_slab_info(const struct slab *slab) folio_flags(folio, 0)); } +static inline unsigned int *get_orig_size_pointer(struct kmem_cache *s, + void *object) +{ + void *p = kasan_reset_tag(object); + + p += get_info_end(s); + p += sizeof(struct track) * 2; + return (unsigned int *)p; +} + +static void set_orig_size(struct kmem_cache *s, + void *object, unsigned int orig_size) +{ + unsigned int *p; + + if (!slub_debug_orig_size(s)) + return; + + p = get_orig_size_pointer(s, object); + *p = orig_size; +} + +static unsigned int get_orig_size(struct kmem_cache *s, void *object) +{ + unsigned int *p; + + if (!slub_debug_orig_size(s)) + return s->object_size; + + p = get_orig_size_pointer(s, object); + return *p; +} + static void slab_bug(struct kmem_cache *s, char *fmt, ...) { struct va_format vaf; @@ -875,6 +914,9 @@ static void print_trailer(struct kmem_cache *s, struct slab *slab, u8 *p) if (s->flags & SLAB_STORE_USER) off += 2 * sizeof(struct track); + if (slub_debug_orig_size(s)) + off += sizeof(unsigned int); + off += kasan_metadata_size(s); if (off != size_from_object(s)) @@ -1026,10 +1068,14 @@ static int check_pad_bytes(struct kmem_cache *s, struct slab *slab, u8 *p) { unsigned long off = get_info_end(s); /* The end of info */ - if (s->flags & SLAB_STORE_USER) + if (s->flags & SLAB_STORE_USER) { /* We also have user information there */ off += 2 * sizeof(struct track); + if (s->flags & SLAB_KMALLOC) + off += sizeof(unsigned int); + } + off += kasan_metadata_size(s); if (size_from_object(s) == off) @@ -1335,6 +1381,7 @@ static noinline int alloc_debug_processing(struct kmem_cache *s, /* Success perform special debug activities for allocs */ if (s->flags & SLAB_STORE_USER) set_track(s, object, TRACK_ALLOC, addr); + trace(s, slab, object, 1); init_object(s, object, SLUB_RED_ACTIVE); return 1; @@ -3240,6 +3287,9 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, struct list_l init = slab_want_init_on_alloc(gfpflags, s); out: +#ifdef CONFIG_SLUB_DEBUG + set_orig_size(s, object, orig_size); +#endif slab_post_alloc_hook(s, objcg, gfpflags, 1, &object, init); return object; @@ -4112,12 +4162,17 @@ static int calculate_sizes(struct kmem_cache *s) } #ifdef CONFIG_SLUB_DEBUG - if (flags & SLAB_STORE_USER) + if (flags & SLAB_STORE_USER) { /* * Need to store information about allocs and frees after * the object. */ size += 2 * sizeof(struct track); + + /* Save the original kmalloc request size */ + if (flags & SLAB_KMALLOC) + size += sizeof(unsigned int); + } #endif kasan_cache_create(s, &size, &s->flags); @@ -4842,7 +4897,7 @@ void __init kmem_cache_init(void) /* Now we can use the kmem_cache to allocate kmalloc slabs */ setup_kmalloc_cache_index_table(); - create_kmalloc_caches(0); + create_kmalloc_caches(SLAB_KMALLOC); /* Setup random freelists for each cache */ init_freelist_randomization(); @@ -5068,6 +5123,7 @@ struct location { depot_stack_handle_t handle; unsigned long count; unsigned long addr; + unsigned long waste; long long sum_time; long min_time; long max_time; @@ -5114,13 +5170,15 @@ static int alloc_loc_track(struct loc_track *t, unsigned long max, gfp_t flags) } static int add_location(struct loc_track *t, struct kmem_cache *s, - const struct track *track) + const struct track *track, + unsigned int orig_size) { long start, end, pos; struct location *l; - unsigned long caddr, chandle; + unsigned long caddr, chandle, cwaste; unsigned long age = jiffies - track->when; depot_stack_handle_t handle = 0; + unsigned int waste = s->object_size - orig_size; #ifdef CONFIG_STACKDEPOT handle = READ_ONCE(track->handle); @@ -5138,11 +5196,13 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, if (pos == end) break; - caddr = t->loc[pos].addr; - chandle = t->loc[pos].handle; - if ((track->addr == caddr) && (handle == chandle)) { + l = &t->loc[pos]; + caddr = l->addr; + chandle = l->handle; + cwaste = l->waste; + if ((track->addr == caddr) && (handle == chandle) && + (waste == cwaste)) { - l = &t->loc[pos]; l->count++; if (track->when) { l->sum_time += age; @@ -5167,6 +5227,9 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, end = pos; else if (track->addr == caddr && handle < chandle) end = pos; + else if (track->addr == caddr && handle == chandle && + waste < cwaste) + end = pos; else start = pos; } @@ -5190,6 +5253,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, l->min_pid = track->pid; l->max_pid = track->pid; l->handle = handle; + l->waste = waste; cpumask_clear(to_cpumask(l->cpus)); cpumask_set_cpu(track->cpu, to_cpumask(l->cpus)); nodes_clear(l->nodes); @@ -5208,7 +5272,7 @@ static void process_slab(struct loc_track *t, struct kmem_cache *s, for_each_object(p, s, addr, slab->objects) if (!test_bit(__obj_to_index(s, addr, p), obj_map)) - add_location(t, s, get_track(s, p, alloc)); + add_location(t, s, get_track(s, p, alloc), get_orig_size(s, p)); } #endif /* CONFIG_DEBUG_FS */ #endif /* CONFIG_SLUB_DEBUG */ @@ -6078,6 +6142,10 @@ static int slab_debugfs_show(struct seq_file *seq, void *v) else seq_puts(seq, "<not-available>"); + if (l->waste) + seq_printf(seq, " waste=%lu/%lu", + l->count * l->waste, l->waste); + if (l->sum_time != l->min_time) { seq_printf(seq, " age=%ld/%llu/%ld", l->min_time, div_u64(l->sum_time, l->count), ^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc 2022-07-27 10:20 ` Christoph Lameter 2022-07-27 12:59 ` Feng Tang @ 2022-07-27 14:12 ` Vlastimil Babka 1 sibling, 0 replies; 31+ messages in thread From: Vlastimil Babka @ 2022-07-27 14:12 UTC (permalink / raw) To: Christoph Lameter, Feng Tang Cc: Andrew Morton, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, linux-mm, linux-kernel, Dave Hansen, Robin Murphy, John Garry, Kefeng Wang On 7/27/22 12:20, Christoph Lameter wrote: > On Wed, 27 Jul 2022, Feng Tang wrote: > >> @@ -2905,7 +2950,7 @@ static inline void *get_freelist(struct kmem_cache *s, struct slab *slab) >> * already disabled (which is the case for bulk allocation). >> */ >> static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> - unsigned long addr, struct kmem_cache_cpu *c) >> + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) >> { >> void *freelist; >> struct slab *slab; >> @@ -3102,7 +3147,7 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> * pointer. >> */ >> static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> - unsigned long addr, struct kmem_cache_cpu *c) >> + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) >> { >> void *p; >> >> @@ -3115,7 +3160,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, >> c = slub_get_cpu_ptr(s->cpu_slab); >> #endif >> >> - p = ___slab_alloc(s, gfpflags, node, addr, c); >> + p = ___slab_alloc(s, gfpflags, node, addr, c, orig_size); >> #ifdef CONFIG_PREEMPT_COUNT >> slub_put_cpu_ptr(s->cpu_slab); > > This is modifying and making execution of standard slab functions more > expensive. Could you restrict modifications to the kmalloc subsystem? > > kmem_cache_alloc() and friends are not doing any rounding up to power of > two sizes. > > What is happening here is that you pass kmalloc object size info through > the kmem_cache_alloc functions so that the regular allocation functions > debug functionality can then save the kmalloc specific object request > size. This is active even when no debugging options are enabled. I don't think the extra orig_size parameter (unused for non-debug caches) adds any noticeable overhead. In slab_alloc_node() we already have the orig_size parameter (for both kmalloc and non-kmalloc caches) before this patch, and it remains unused in the cmpxchg based fast path. The patch adds it to __slab_alloc() which is not the fast path, and it's still unused for non-debug caches there. So the overhead is basically one less register available (because of the extra param) in a slow path and that should be immeasurable. > Can you avoid that? Have kmalloc do the object allocation without passing > through the kmalloc request size and then add the original size info > to the debug field later after execution continues in the kmalloc functions? That approach is problematic wrt patches 2+3 if we want to use orig_size to affect the boundaries of zero-init and redzoning. Also it goes against the attempt to fix races wrt validation, see [1] where the idea is to have alloc_debug_processing() including redzoning done under n->list_lock and for that should have orig_size passed there as well. [1] https://lore.kernel.org/all/69462916-2d1c-dd50-2e64-b31c2b61690e@suse.cz/ ^ permalink raw reply [flat|nested] 31+ messages in thread
* [PATCH v3 2/3] mm/slub: only zero the requested size of buffer for kzalloc 2022-07-27 7:10 [PATCH v3 0/3] mm/slub: some debug enhancements Feng Tang 2022-07-27 7:10 ` [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc Feng Tang @ 2022-07-27 7:10 ` Feng Tang 2022-07-27 7:10 ` [PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested Feng Tang 2 siblings, 0 replies; 31+ messages in thread From: Feng Tang @ 2022-07-27 7:10 UTC (permalink / raw) To: Andrew Morton, Vlastimil Babka, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, linux-mm, linux-kernel Cc: Dave Hansen, Robin Murphy, John Garry, Kefeng Wang, Feng Tang kzalloc/kmalloc will round up the request size to a fixed size (mostly power of 2), so the allocated memory could be more than requested. Currently kzalloc family APIs will zero all the allocated memory. To detect out-of-bound usage of the extra allocated memory, only zero the requested part, so that sanity check could be added to the extra space later. For kzalloc users who will call ksize() later and utilize this extra space, please be aware that the space is not zeroed any more. Signed-off-by: Feng Tang <feng.tang@intel.com> --- mm/slab.c | 8 ++++---- mm/slab.h | 9 +++++++-- mm/slub.c | 6 +++--- 3 files changed, 14 insertions(+), 9 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index 5e73e2d80222..771f7c57d3ef 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3236,7 +3236,7 @@ slab_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, size_t orig_ init = slab_want_init_on_alloc(flags, cachep); out_hooks: - slab_post_alloc_hook(cachep, objcg, flags, 1, &ptr, init); + slab_post_alloc_hook(cachep, objcg, flags, 1, &ptr, init, 0); return ptr; } @@ -3299,7 +3299,7 @@ slab_alloc(struct kmem_cache *cachep, struct list_lru *lru, gfp_t flags, init = slab_want_init_on_alloc(flags, cachep); out: - slab_post_alloc_hook(cachep, objcg, flags, 1, &objp, init); + slab_post_alloc_hook(cachep, objcg, flags, 1, &objp, init, 0); return objp; } @@ -3546,13 +3546,13 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size, * Done outside of the IRQ disabled section. */ slab_post_alloc_hook(s, objcg, flags, size, p, - slab_want_init_on_alloc(flags, s)); + slab_want_init_on_alloc(flags, s), 0); /* FIXME: Trace call missing. Christoph would like a bulk variant */ return size; error: local_irq_enable(); cache_alloc_debugcheck_after_bulk(s, flags, i, p, _RET_IP_); - slab_post_alloc_hook(s, objcg, flags, i, p, false); + slab_post_alloc_hook(s, objcg, flags, i, p, false, 0); kmem_cache_free_bulk(s, i, p); return 0; } diff --git a/mm/slab.h b/mm/slab.h index 4ec82bec15ec..7b53868efe6d 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -710,12 +710,17 @@ static inline struct kmem_cache *slab_pre_alloc_hook(struct kmem_cache *s, static inline void slab_post_alloc_hook(struct kmem_cache *s, struct obj_cgroup *objcg, gfp_t flags, - size_t size, void **p, bool init) + size_t size, void **p, bool init, + unsigned int orig_size) { size_t i; flags &= gfp_allowed_mask; + /* If original request size(kmalloc) is not set, use object_size */ + if (!orig_size) + orig_size = s->object_size; + /* * As memory initialization might be integrated into KASAN, * kasan_slab_alloc and initialization memset must be @@ -726,7 +731,7 @@ static inline void slab_post_alloc_hook(struct kmem_cache *s, for (i = 0; i < size; i++) { p[i] = kasan_slab_alloc(s, p[i], flags, init); if (p[i] && init && !kasan_has_integrated_init()) - memset(p[i], 0, s->object_size); + memset(p[i], 0, orig_size); kmemleak_alloc_recursive(p[i], s->object_size, 1, s->flags, flags); } diff --git a/mm/slub.c b/mm/slub.c index 2e046cc10b84..946919066a4b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3285,7 +3285,7 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, struct list_l init = slab_want_init_on_alloc(gfpflags, s); out: - slab_post_alloc_hook(s, objcg, gfpflags, 1, &object, init); + slab_post_alloc_hook(s, objcg, gfpflags, 1, &object, init, orig_size); return object; } @@ -3778,11 +3778,11 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size, * Done outside of the IRQ disabled fastpath loop. */ slab_post_alloc_hook(s, objcg, flags, size, p, - slab_want_init_on_alloc(flags, s)); + slab_want_init_on_alloc(flags, s), 0); return i; error: slub_put_cpu_ptr(s->cpu_slab); - slab_post_alloc_hook(s, objcg, flags, i, p, false); + slab_post_alloc_hook(s, objcg, flags, i, p, false, 0); kmem_cache_free_bulk(s, i, p); return 0; } -- 2.27.0 ^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested 2022-07-27 7:10 [PATCH v3 0/3] mm/slub: some debug enhancements Feng Tang 2022-07-27 7:10 ` [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc Feng Tang 2022-07-27 7:10 ` [PATCH v3 2/3] mm/slub: only zero the requested size of buffer for kzalloc Feng Tang @ 2022-07-27 7:10 ` Feng Tang 2022-07-31 6:53 ` [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten kernel test robot 2 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-07-27 7:10 UTC (permalink / raw) To: Andrew Morton, Vlastimil Babka, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, linux-mm, linux-kernel Cc: Dave Hansen, Robin Murphy, John Garry, Kefeng Wang, Feng Tang kmalloc will round up the request size to a fixed size (mostly power of 2), so there could be a extra space than what is requested, whose size is the actual buffer size minus original request size. To better detect out of bound access or abuse of this space, add redzone sanity check for it. And in current kernel, some kmalloc user already knows the existence of the space and utilizes it after calling 'ksize()' to know the real size of the allocated buffer. So we skip the sanity check for objects which have been called with ksize(), as treating them as legitimate users. Suggested-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Feng Tang <feng.tang@intel.com> --- mm/slub.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 49 insertions(+), 3 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 946919066a4b..added2653bb0 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -836,6 +836,11 @@ static inline void set_orig_size(struct kmem_cache *s, *(unsigned int *)p = orig_size; } +static inline void skip_orig_size_check(struct kmem_cache *s, const void *object) +{ + set_orig_size(s, (void *)object, s->object_size); +} + static unsigned int get_orig_size(struct kmem_cache *s, void *object) { void *p = kasan_reset_tag(object); @@ -967,13 +972,35 @@ static __printf(3, 4) void slab_err(struct kmem_cache *s, struct slab *slab, static void init_object(struct kmem_cache *s, void *object, u8 val) { u8 *p = kasan_reset_tag(object); + unsigned int orig_size = s->object_size; - if (s->flags & SLAB_RED_ZONE) + if (s->flags & SLAB_RED_ZONE) { memset(p - s->red_left_pad, val, s->red_left_pad); + if (slub_debug_orig_size(s) && val == SLUB_RED_ACTIVE) { + unsigned int zone_start; + + orig_size = get_orig_size(s, object); + zone_start = orig_size; + + if (!freeptr_outside_object(s)) + zone_start = max_t(unsigned int, orig_size, + s->offset + sizeof(void *)); + + /* + * Redzone the extra allocated space by kmalloc + * than requested. + */ + if (zone_start < s->object_size) + memset(p + zone_start, val, + s->object_size - zone_start); + } + + } + if (s->flags & __OBJECT_POISON) { - memset(p, POISON_FREE, s->object_size - 1); - p[s->object_size - 1] = POISON_END; + memset(p, POISON_FREE, orig_size - 1); + p[orig_size - 1] = POISON_END; } if (s->flags & SLAB_RED_ZONE) @@ -1120,6 +1147,7 @@ static int check_object(struct kmem_cache *s, struct slab *slab, { u8 *p = object; u8 *endobject = object + s->object_size; + unsigned int orig_size; if (s->flags & SLAB_RED_ZONE) { if (!check_bytes_and_report(s, slab, object, "Left Redzone", @@ -1129,6 +1157,20 @@ static int check_object(struct kmem_cache *s, struct slab *slab, if (!check_bytes_and_report(s, slab, object, "Right Redzone", endobject, val, s->inuse - s->object_size)) return 0; + + if (slub_debug_orig_size(s) && val == SLUB_RED_ACTIVE) { + orig_size = get_orig_size(s, object); + + if (!freeptr_outside_object(s)) + orig_size = max_t(unsigned int, orig_size, + s->offset + sizeof(void *)); + if (s->object_size > orig_size && + !check_bytes_and_report(s, slab, object, + "kmalloc Redzone", p + orig_size, + val, s->object_size - orig_size)) { + return 0; + } + } } else { if ((s->flags & SLAB_POISON) && s->object_size < s->inuse) { check_bytes_and_report(s, slab, p, "Alignment padding", @@ -4588,6 +4630,10 @@ size_t __ksize(const void *object) if (unlikely(!folio_test_slab(folio))) return folio_size(folio); +#ifdef CONFIG_SLUB_DEBUG + skip_orig_size_check(folio_slab(folio)->slab_cache, object); +#endif + return slab_ksize(folio_slab(folio)->slab_cache); } EXPORT_SYMBOL(__ksize); -- 2.27.0 ^ permalink raw reply related [flat|nested] 31+ messages in thread
* [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-07-27 7:10 ` [PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested Feng Tang @ 2022-07-31 6:53 ` kernel test robot 2022-07-31 8:16 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: kernel test robot @ 2022-07-31 6:53 UTC (permalink / raw) To: Feng Tang Cc: 0day robot, Vlastimil Babka, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Dave Hansen, Robin Murphy, John Garry, Kefeng Wang, Feng Tang [-- Attachment #1: Type: text/plain, Size: 5962 bytes --] Greeting, FYI, we noticed the following commit (built with gcc-11): commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com in testcase: boot on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang@intel.com> [ 50.637839][ T154] ============================================================================= [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten [ 50.641291][ T154] ----------------------------------------------------------------------------- [ 50.641291][ T154] [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 [ 50.647411][ T154] __slab_alloc+0x1a/0x22 [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 [ 50.649237][ T154] __sdt_alloc+0x258/0x457 [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 [ 50.650981][ T154] sched_init_smp+0x30/0xa5 [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b [ 50.652767][ T154] kernel_init+0x14/0x127 [ 50.653594][ T154] ret_from_fork+0x1f/0x30 [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 [ 50.656866][ T154] [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 [ 50.668694][ T154] Call Trace: [ 50.669331][ T154] <TASK> [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe [ 50.671436][ T154] check_object+0xdc/0x24d [ 50.672163][ T154] free_debug_processing+0x98/0x210 [ 50.673036][ T154] ? qlist_free_all+0x90/0xde [ 50.673904][ T154] __slab_free+0x46/0x198 [ 50.674660][ T154] ? lockdep_hardirqs_on_prepare+0x32d/0x34e [ 50.675746][ T154] qlist_free_all+0xae/0xde [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 [ 50.679249][ T154] ? getname_flags+0x4b/0x314 [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 [ 50.680938][ T154] getname_flags+0x4b/0x314 [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c [ 50.682624][ T154] ? build_open_flags+0x324/0x324 [ 50.683522][ T154] ? __lock_release+0xe8/0x367 [ 50.684407][ T154] do_sys_open+0x6b/0x83 [ 50.685225][ T154] ? file_open_root+0xbf/0xbf [ 50.686093][ T154] do_syscall_64+0x6e/0x82 [ 50.686895][ T154] ? lockdep_hardirqs_on_prepare+0x32d/0x34e [ 50.688007][ T154] ? do_syscall_64+0x7c/0x82 [ 50.688859][ T154] ? rcu_read_lock_sched_held+0x60/0x98 [ 50.689780][ T154] ? lockdep_hardirqs_on_prepare+0x32d/0x34e [ 50.690766][ T154] ? do_syscall_64+0x7c/0x82 [ 50.691591][ T154] ? lockdep_hardirqs_on_prepare+0x32d/0x34e [ 50.692521][ T154] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 50.693535][ T154] RIP: 0033:0x7f60f7d2a767 [ 50.694372][ T154] Code: 25 00 00 41 00 3d 00 00 41 00 74 47 64 8b 04 25 18 00 00 00 85 c0 75 6b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 95 00 00 00 48 8b 4c 24 28 64 48 2b 0c 25 [ 50.697786][ T154] RSP: 002b:00007ffe8d6644b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 50.699213][ T154] RAX: ffffffffffffffda RBX: 00007f60f77916c0 RCX: 00007f60f7d2a767 [ 50.700601][ T154] RDX: 00000000000800c1 RSI: 000056320c6d0431 RDI: 00000000ffffff9c [ 50.702019][ T154] RBP: 000056320c6d0431 R08: 000056320cec9d30 R09: 00007f60f7c90e20 [ 50.703408][ T154] R10: 00000000000001a4 R11: 0000000000000246 R12: 00000000000800c1 [ 50.704860][ T154] R13: 000056320c6d0431 R14: 00000000ffffffff R15: 00007ffe8d6645b8 [ 50.706282][ T154] </TASK> [ 50.706848][ T154] Disabling lock debugging due to kernel taint [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc To reproduce: # build kernel cd linux cp config-5.19.0-rc5-00010-g361679912861 .config make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install cd <mod-install-dir> find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. -- 0-DAY CI Kernel Test Service https://01.org/lkp [-- Attachment #2: config-5.19.0-rc5-00010-g361679912861 --] [-- Type: text/plain, Size: 133440 bytes --] # # Automatically generated file; DO NOT EDIT. # Linux/x86_64 5.19.0-rc5 Kernel Configuration # CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-3) 11.3.0" CONFIG_CC_IS_GCC=y CONFIG_GCC_VERSION=110300 CONFIG_CLANG_VERSION=0 CONFIG_AS_IS_GNU=y CONFIG_AS_VERSION=23800 CONFIG_LD_IS_BFD=y CONFIG_LD_VERSION=23800 CONFIG_LLD_VERSION=0 CONFIG_CC_CAN_LINK=y CONFIG_CC_CAN_LINK_STATIC=y CONFIG_CC_HAS_ASM_GOTO=y CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y CONFIG_CC_HAS_ASM_INLINE=y CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y CONFIG_PAHOLE_VERSION=123 CONFIG_CONSTRUCTORS=y CONFIG_IRQ_WORK=y CONFIG_BUILDTIME_TABLE_SORT=y CONFIG_THREAD_INFO_IN_TASK=y # # General setup # CONFIG_INIT_ENV_ARG_LIMIT=32 # CONFIG_COMPILE_TEST is not set # CONFIG_WERROR is not set # CONFIG_UAPI_HEADER_TEST is not set CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_BUILD_SALT="" CONFIG_HAVE_KERNEL_GZIP=y CONFIG_HAVE_KERNEL_BZIP2=y CONFIG_HAVE_KERNEL_LZMA=y CONFIG_HAVE_KERNEL_XZ=y CONFIG_HAVE_KERNEL_LZO=y CONFIG_HAVE_KERNEL_LZ4=y CONFIG_HAVE_KERNEL_ZSTD=y # CONFIG_KERNEL_GZIP is not set # CONFIG_KERNEL_BZIP2 is not set # CONFIG_KERNEL_LZMA is not set # CONFIG_KERNEL_XZ is not set # CONFIG_KERNEL_LZO is not set CONFIG_KERNEL_LZ4=y # CONFIG_KERNEL_ZSTD is not set CONFIG_DEFAULT_INIT="" CONFIG_DEFAULT_HOSTNAME="(none)" # CONFIG_SYSVIPC is not set # CONFIG_POSIX_MQUEUE is not set CONFIG_WATCH_QUEUE=y CONFIG_CROSS_MEMORY_ATTACH=y CONFIG_USELIB=y # CONFIG_AUDIT is not set CONFIG_HAVE_ARCH_AUDITSYSCALL=y # # IRQ subsystem # CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_IRQ_SHOW=y CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y CONFIG_GENERIC_PENDING_IRQ=y CONFIG_GENERIC_IRQ_MIGRATION=y CONFIG_HARDIRQS_SW_RESEND=y CONFIG_IRQ_DOMAIN=y CONFIG_IRQ_SIM=y CONFIG_IRQ_DOMAIN_HIERARCHY=y CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y CONFIG_GENERIC_IRQ_RESERVATION_MODE=y CONFIG_IRQ_FORCED_THREADING=y CONFIG_SPARSE_IRQ=y # CONFIG_GENERIC_IRQ_DEBUGFS is not set # end of IRQ subsystem CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_ARCH_CLOCKSOURCE_INIT=y CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y # # Timers subsystem # CONFIG_TICK_ONESHOT=y CONFIG_NO_HZ_COMMON=y # CONFIG_HZ_PERIODIC is not set CONFIG_NO_HZ_IDLE=y # CONFIG_NO_HZ_FULL is not set # CONFIG_NO_HZ is not set # CONFIG_HIGH_RES_TIMERS is not set CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100 # end of Timers subsystem CONFIG_BPF=y CONFIG_HAVE_EBPF_JIT=y CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y # # BPF subsystem # CONFIG_BPF_SYSCALL=y CONFIG_BPF_JIT=y CONFIG_BPF_JIT_ALWAYS_ON=y CONFIG_BPF_JIT_DEFAULT_ON=y # CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set # CONFIG_BPF_PRELOAD is not set # end of BPF subsystem CONFIG_PREEMPT_VOLUNTARY_BUILD=y # CONFIG_PREEMPT_NONE is not set CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_PREEMPT is not set CONFIG_PREEMPT_COUNT=y # CONFIG_PREEMPT_DYNAMIC is not set # CONFIG_SCHED_CORE is not set # # CPU/Task time and stats accounting # CONFIG_TICK_CPU_ACCOUNTING=y # CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set # CONFIG_IRQ_TIME_ACCOUNTING is not set CONFIG_HAVE_SCHED_AVG_IRQ=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set # CONFIG_PSI is not set # end of CPU/Task time and stats accounting CONFIG_CPU_ISOLATION=y # # RCU Subsystem # CONFIG_TREE_RCU=y # CONFIG_RCU_EXPERT is not set CONFIG_SRCU=y CONFIG_TREE_SRCU=y CONFIG_TASKS_RCU_GENERIC=y CONFIG_TASKS_TRACE_RCU=y CONFIG_RCU_STALL_COMMON=y CONFIG_RCU_NEED_SEGCBLIST=y # end of RCU Subsystem CONFIG_BUILD_BIN2C=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_IKHEADERS=y CONFIG_LOG_BUF_SHIFT=20 CONFIG_LOG_CPU_MAX_BUF_SHIFT=12 CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13 # CONFIG_PRINTK_INDEX is not set CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y # # Scheduler features # CONFIG_UCLAMP_TASK=y CONFIG_UCLAMP_BUCKETS_COUNT=5 # end of Scheduler features CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y CONFIG_CC_HAS_INT128=y CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5" CONFIG_GCC12_NO_ARRAY_BOUNDS=y CONFIG_ARCH_SUPPORTS_INT128=y CONFIG_NUMA_BALANCING=y CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y CONFIG_CGROUPS=y CONFIG_PAGE_COUNTER=y CONFIG_MEMCG=y CONFIG_MEMCG_KMEM=y CONFIG_BLK_CGROUP=y CONFIG_CGROUP_WRITEBACK=y CONFIG_CGROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y CONFIG_CFS_BANDWIDTH=y # CONFIG_RT_GROUP_SCHED is not set # CONFIG_UCLAMP_TASK_GROUP is not set # CONFIG_CGROUP_PIDS is not set # CONFIG_CGROUP_RDMA is not set # CONFIG_CGROUP_FREEZER is not set # CONFIG_CPUSETS is not set CONFIG_CGROUP_DEVICE=y # CONFIG_CGROUP_CPUACCT is not set CONFIG_CGROUP_PERF=y # CONFIG_CGROUP_BPF is not set # CONFIG_CGROUP_MISC is not set CONFIG_CGROUP_DEBUG=y # CONFIG_NAMESPACES is not set CONFIG_CHECKPOINT_RESTORE=y CONFIG_SCHED_AUTOGROUP=y # CONFIG_SYSFS_DEPRECATED is not set # CONFIG_RELAY is not set CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_RD_GZIP=y CONFIG_RD_BZIP2=y # CONFIG_RD_LZMA is not set CONFIG_RD_XZ=y # CONFIG_RD_LZO is not set # CONFIG_RD_LZ4 is not set # CONFIG_RD_ZSTD is not set CONFIG_BOOT_CONFIG=y # CONFIG_BOOT_CONFIG_EMBED is not set CONFIG_INITRAMFS_PRESERVE_MTIME=y # CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_LD_ORPHAN_WARN=y CONFIG_SYSCTL=y CONFIG_SYSCTL_EXCEPTION_TRACE=y CONFIG_HAVE_PCSPKR_PLATFORM=y CONFIG_EXPERT=y CONFIG_MULTIUSER=y CONFIG_SGETMASK_SYSCALL=y # CONFIG_SYSFS_SYSCALL is not set CONFIG_FHANDLE=y # CONFIG_POSIX_TIMERS is not set CONFIG_PRINTK=y CONFIG_BUG=y # CONFIG_ELF_CORE is not set CONFIG_PCSPKR_PLATFORM=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_FUTEX_PI=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y # CONFIG_AIO is not set CONFIG_IO_URING=y # CONFIG_ADVISE_SYSCALLS is not set CONFIG_MEMBARRIER=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y CONFIG_KALLSYMS_BASE_RELATIVE=y CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y CONFIG_KCMP=y CONFIG_RSEQ=y # CONFIG_DEBUG_RSEQ is not set CONFIG_EMBEDDED=y CONFIG_HAVE_PERF_EVENTS=y CONFIG_PERF_USE_VMALLOC=y CONFIG_PC104=y # # Kernel Performance Events And Counters # CONFIG_PERF_EVENTS=y CONFIG_DEBUG_PERF_USE_VMALLOC=y # end of Kernel Performance Events And Counters CONFIG_PROFILING=y CONFIG_TRACEPOINTS=y # end of General setup CONFIG_64BIT=y CONFIG_X86_64=y CONFIG_X86=y CONFIG_INSTRUCTION_DECODER=y CONFIG_OUTPUT_FORMAT="elf64-x86-64" CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_MMU=y CONFIG_ARCH_MMAP_RND_BITS_MIN=28 CONFIG_ARCH_MMAP_RND_BITS_MAX=32 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16 CONFIG_GENERIC_BUG=y CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_ARCH_HAS_CPU_RELAX=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y CONFIG_ARCH_NR_GPIO=1024 CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_AUDIT_ARCH=y CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000 CONFIG_X86_64_SMP=y CONFIG_ARCH_SUPPORTS_UPROBES=y CONFIG_FIX_EARLYCON_MEM=y CONFIG_PGTABLE_LEVELS=4 CONFIG_CC_HAS_SANE_STACKPROTECTOR=y # # Processor type and features # CONFIG_SMP=y CONFIG_X86_FEATURE_NAMES=y # CONFIG_X86_X2APIC is not set # CONFIG_X86_MPPARSE is not set CONFIG_GOLDFISH=y # CONFIG_RETPOLINE is not set CONFIG_CC_HAS_SLS=y # CONFIG_SLS is not set CONFIG_X86_CPU_RESCTRL=y # CONFIG_X86_EXTENDED_PLATFORM is not set # CONFIG_X86_INTEL_LPSS is not set # CONFIG_X86_AMD_PLATFORM_DEVICE is not set # CONFIG_IOSF_MBI is not set # CONFIG_SCHED_OMIT_FRAME_POINTER is not set CONFIG_HYPERVISOR_GUEST=y CONFIG_PARAVIRT=y CONFIG_PARAVIRT_DEBUG=y # CONFIG_PARAVIRT_SPINLOCKS is not set CONFIG_X86_HV_CALLBACK_VECTOR=y CONFIG_XEN=y # CONFIG_XEN_PV is not set CONFIG_XEN_PVHVM=y CONFIG_XEN_PVHVM_SMP=y CONFIG_XEN_PVHVM_GUEST=y CONFIG_XEN_SAVE_RESTORE=y # CONFIG_XEN_DEBUG_FS is not set CONFIG_XEN_PVH=y # CONFIG_XEN_DOM0 is not set CONFIG_KVM_GUEST=y CONFIG_ARCH_CPUIDLE_HALTPOLL=y CONFIG_PVH=y CONFIG_PARAVIRT_TIME_ACCOUNTING=y CONFIG_PARAVIRT_CLOCK=y # CONFIG_JAILHOUSE_GUEST is not set # CONFIG_ACRN_GUEST is not set # CONFIG_MK8 is not set # CONFIG_MPSC is not set # CONFIG_MCORE2 is not set # CONFIG_MATOM is not set CONFIG_GENERIC_CPU=y CONFIG_X86_INTERNODE_CACHE_SHIFT=6 CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_TSC=y CONFIG_X86_CMPXCHG64=y CONFIG_X86_CMOV=y CONFIG_X86_MINIMUM_CPU_FAMILY=64 CONFIG_X86_DEBUGCTLMSR=y CONFIG_IA32_FEAT_CTL=y CONFIG_X86_VMX_FEATURE_NAMES=y # CONFIG_PROCESSOR_SELECT is not set CONFIG_CPU_SUP_INTEL=y CONFIG_CPU_SUP_AMD=y CONFIG_CPU_SUP_HYGON=y CONFIG_CPU_SUP_CENTAUR=y CONFIG_CPU_SUP_ZHAOXIN=y CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_DMI=y # CONFIG_GART_IOMMU is not set # CONFIG_MAXSMP is not set CONFIG_NR_CPUS_RANGE_BEGIN=2 CONFIG_NR_CPUS_RANGE_END=512 CONFIG_NR_CPUS_DEFAULT=64 CONFIG_NR_CPUS=64 CONFIG_SCHED_CLUSTER=y CONFIG_SCHED_SMT=y CONFIG_SCHED_MC=y CONFIG_SCHED_MC_PRIO=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y # CONFIG_X86_MCE is not set # # Performance monitoring # CONFIG_PERF_EVENTS_INTEL_UNCORE=y CONFIG_PERF_EVENTS_INTEL_RAPL=y CONFIG_PERF_EVENTS_INTEL_CSTATE=y # CONFIG_PERF_EVENTS_AMD_POWER is not set # CONFIG_PERF_EVENTS_AMD_UNCORE is not set # CONFIG_PERF_EVENTS_AMD_BRS is not set # end of Performance monitoring # CONFIG_X86_16BIT is not set CONFIG_X86_VSYSCALL_EMULATION=y CONFIG_X86_IOPL_IOPERM=y # CONFIG_MICROCODE is not set # CONFIG_X86_MSR is not set CONFIG_X86_CPUID=m # CONFIG_X86_5LEVEL is not set CONFIG_X86_DIRECT_GBPAGES=y CONFIG_X86_CPA_STATISTICS=y # CONFIG_AMD_MEM_ENCRYPT is not set CONFIG_NUMA=y # CONFIG_AMD_NUMA is not set CONFIG_X86_64_ACPI_NUMA=y # CONFIG_NUMA_EMU is not set CONFIG_NODES_SHIFT=6 CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_DEFAULT=y # CONFIG_ARCH_MEMORY_PROBE is not set CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 # CONFIG_X86_PMEM_LEGACY is not set CONFIG_X86_CHECK_BIOS_CORRUPTION=y # CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set # CONFIG_MTRR is not set CONFIG_ARCH_RANDOM=y # CONFIG_X86_UMIP is not set CONFIG_CC_HAS_IBT=y # CONFIG_X86_KERNEL_IBT is not set # CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set CONFIG_X86_INTEL_TSX_MODE_OFF=y # CONFIG_X86_INTEL_TSX_MODE_ON is not set # CONFIG_X86_INTEL_TSX_MODE_AUTO is not set # CONFIG_X86_SGX is not set CONFIG_EFI=y CONFIG_EFI_STUB=y CONFIG_EFI_MIXED=y # CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set CONFIG_HZ_300=y # CONFIG_HZ_1000 is not set CONFIG_HZ=300 # CONFIG_KEXEC is not set CONFIG_KEXEC_FILE=y CONFIG_ARCH_HAS_KEXEC_PURGATORY=y # CONFIG_KEXEC_SIG is not set # CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x1000000 CONFIG_RELOCATABLE=y CONFIG_RANDOMIZE_BASE=y CONFIG_X86_NEED_RELOCS=y CONFIG_PHYSICAL_ALIGN=0x200000 CONFIG_DYNAMIC_MEMORY_LAYOUT=y CONFIG_RANDOMIZE_MEMORY=y CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa CONFIG_HOTPLUG_CPU=y CONFIG_BOOTPARAM_HOTPLUG_CPU0=y # CONFIG_DEBUG_HOTPLUG_CPU0 is not set CONFIG_LEGACY_VSYSCALL_XONLY=y # CONFIG_LEGACY_VSYSCALL_NONE is not set # CONFIG_CMDLINE_BOOL is not set CONFIG_MODIFY_LDT_SYSCALL=y CONFIG_STRICT_SIGALTSTACK_SIZE=y CONFIG_HAVE_LIVEPATCH=y # end of Processor type and features CONFIG_ARCH_HAS_ADD_PAGES=y CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y # # Power management and ACPI options # # CONFIG_SUSPEND is not set CONFIG_HIBERNATE_CALLBACKS=y CONFIG_PM_SLEEP=y CONFIG_PM_SLEEP_SMP=y # CONFIG_PM_AUTOSLEEP is not set CONFIG_PM_WAKELOCKS=y CONFIG_PM_WAKELOCKS_LIMIT=100 CONFIG_PM_WAKELOCKS_GC=y CONFIG_PM=y CONFIG_PM_DEBUG=y CONFIG_PM_ADVANCED_DEBUG=y CONFIG_PM_SLEEP_DEBUG=y CONFIG_DPM_WATCHDOG=y CONFIG_DPM_WATCHDOG_TIMEOUT=120 CONFIG_PM_TRACE=y CONFIG_PM_TRACE_RTC=y CONFIG_PM_CLK=y CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y # CONFIG_ENERGY_MODEL is not set CONFIG_ARCH_SUPPORTS_ACPI=y CONFIG_ACPI=y CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y CONFIG_ACPI_DEBUGGER=y CONFIG_ACPI_DEBUGGER_USER=m CONFIG_ACPI_SPCR_TABLE=y CONFIG_ACPI_FPDT=y CONFIG_ACPI_LPIT=y CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y CONFIG_ACPI_EC_DEBUGFS=m CONFIG_ACPI_AC=m # CONFIG_ACPI_BATTERY is not set # CONFIG_ACPI_BUTTON is not set CONFIG_ACPI_TINY_POWER_BUTTON=y CONFIG_ACPI_TINY_POWER_BUTTON_SIGNAL=38 CONFIG_ACPI_VIDEO=m # CONFIG_ACPI_FAN is not set # CONFIG_ACPI_TAD is not set CONFIG_ACPI_DOCK=y CONFIG_ACPI_CPU_FREQ_PSS=y CONFIG_ACPI_PROCESSOR_CSTATE=y CONFIG_ACPI_PROCESSOR_IDLE=y CONFIG_ACPI_CPPC_LIB=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_IPMI=m CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_ACPI_PROCESSOR_AGGREGATOR=y CONFIG_ACPI_THERMAL=y CONFIG_ACPI_CUSTOM_DSDT_FILE="" CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y CONFIG_ACPI_TABLE_UPGRADE=y CONFIG_ACPI_DEBUG=y # CONFIG_ACPI_PCI_SLOT is not set CONFIG_ACPI_CONTAINER=y # CONFIG_ACPI_HOTPLUG_MEMORY is not set CONFIG_ACPI_HOTPLUG_IOAPIC=y # CONFIG_ACPI_SBS is not set CONFIG_ACPI_HED=m CONFIG_ACPI_CUSTOM_METHOD=y # CONFIG_ACPI_BGRT is not set # CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set # CONFIG_ACPI_NFIT is not set CONFIG_ACPI_NUMA=y CONFIG_ACPI_HMAT=y CONFIG_HAVE_ACPI_APEI=y CONFIG_HAVE_ACPI_APEI_NMI=y # CONFIG_ACPI_APEI is not set CONFIG_ACPI_DPTF=y CONFIG_DPTF_POWER=y CONFIG_DPTF_PCH_FIVR=y CONFIG_ACPI_CONFIGFS=m # CONFIG_ACPI_PFRUT is not set CONFIG_ACPI_PCC=y # CONFIG_PMIC_OPREGION is not set CONFIG_X86_PM_TIMER=y # CONFIG_ACPI_PRMT is not set # # CPU Frequency scaling # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_GOV_ATTR_SET=y CONFIG_CPU_FREQ_GOV_COMMON=y # CONFIG_CPU_FREQ_STAT is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set # CONFIG_CPU_FREQ_GOV_USERSPACE is not set CONFIG_CPU_FREQ_GOV_ONDEMAND=m CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y # # CPU frequency scaling drivers # # CONFIG_CPUFREQ_DT is not set CONFIG_X86_INTEL_PSTATE=y CONFIG_X86_PCC_CPUFREQ=y # CONFIG_X86_AMD_PSTATE is not set CONFIG_X86_ACPI_CPUFREQ=m # CONFIG_X86_ACPI_CPUFREQ_CPB is not set CONFIG_X86_POWERNOW_K8=m # CONFIG_X86_AMD_FREQ_SENSITIVITY is not set CONFIG_X86_SPEEDSTEP_CENTRINO=y # CONFIG_X86_P4_CLOCKMOD is not set # # shared options # # end of CPU Frequency scaling # # CPU Idle # CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y CONFIG_CPU_IDLE_GOV_MENU=y # CONFIG_CPU_IDLE_GOV_TEO is not set CONFIG_CPU_IDLE_GOV_HALTPOLL=y CONFIG_HALTPOLL_CPUIDLE=y # end of CPU Idle CONFIG_INTEL_IDLE=y # end of Power management and ACPI options # # Bus options (PCI etc.) # CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y CONFIG_PCI_XEN=y CONFIG_MMCONF_FAM10H=y # CONFIG_PCI_CNB20LE_QUIRK is not set CONFIG_ISA_BUS=y # CONFIG_ISA_DMA_API is not set CONFIG_AMD_NB=y # end of Bus options (PCI etc.) # # Binary Emulations # # CONFIG_IA32_EMULATION is not set # CONFIG_X86_X32_ABI is not set # end of Binary Emulations CONFIG_HAVE_KVM=y CONFIG_VIRTUALIZATION=y CONFIG_AS_AVX512=y CONFIG_AS_SHA1_NI=y CONFIG_AS_SHA256_NI=y CONFIG_AS_TPAUSE=y # # General architecture-dependent options # CONFIG_CRASH_CORE=y CONFIG_KEXEC_CORE=y CONFIG_HOTPLUG_SMT=y CONFIG_GENERIC_ENTRY=y # CONFIG_KPROBES is not set # CONFIG_JUMP_LABEL is not set # CONFIG_STATIC_CALL_SELFTEST is not set CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_ARCH_USE_BUILTIN_BSWAP=y CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_OPTPROBES=y CONFIG_HAVE_KPROBES_ON_FTRACE=y CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y CONFIG_HAVE_NMI=y CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_DMA_CONTIGUOUS=y CONFIG_GENERIC_SMP_IDLE_THREAD=y CONFIG_ARCH_HAS_FORTIFY_SOURCE=y CONFIG_ARCH_HAS_SET_MEMORY=y CONFIG_ARCH_HAS_SET_DIRECT_MAP=y CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y CONFIG_ARCH_WANTS_NO_INSTR=y CONFIG_HAVE_ASM_MODVERSIONS=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_RSEQ=y CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y CONFIG_HAVE_HW_BREAKPOINT=y CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y CONFIG_HAVE_USER_RETURN_NOTIFIER=y CONFIG_HAVE_PERF_EVENTS_NMI=y CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y CONFIG_HAVE_PERF_REGS=y CONFIG_HAVE_PERF_USER_STACK_DUMP=y CONFIG_HAVE_ARCH_JUMP_LABEL=y CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y CONFIG_MMU_GATHER_TABLE_FREE=y CONFIG_MMU_GATHER_RCU_TABLE_FREE=y CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y CONFIG_HAVE_CMPXCHG_LOCAL=y CONFIG_HAVE_CMPXCHG_DOUBLE=y CONFIG_HAVE_ARCH_SECCOMP=y CONFIG_HAVE_ARCH_SECCOMP_FILTER=y CONFIG_SECCOMP=y CONFIG_SECCOMP_FILTER=y # CONFIG_SECCOMP_CACHE_DEBUG is not set CONFIG_HAVE_ARCH_STACKLEAK=y CONFIG_HAVE_STACKPROTECTOR=y CONFIG_STACKPROTECTOR=y # CONFIG_STACKPROTECTOR_STRONG is not set CONFIG_ARCH_SUPPORTS_LTO_CLANG=y CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y CONFIG_LTO_NONE=y CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y CONFIG_HAVE_CONTEXT_TRACKING=y CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK=y CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y CONFIG_HAVE_MOVE_PUD=y CONFIG_HAVE_MOVE_PMD=y CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y CONFIG_HAVE_ARCH_HUGE_VMAP=y CONFIG_HAVE_ARCH_HUGE_VMALLOC=y CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y CONFIG_HAVE_ARCH_SOFT_DIRTY=y CONFIG_HAVE_MOD_ARCH_SPECIFIC=y CONFIG_MODULES_USE_ELF_RELA=y CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y CONFIG_ARCH_HAS_ELF_RANDOMIZE=y CONFIG_HAVE_ARCH_MMAP_RND_BITS=y CONFIG_HAVE_EXIT_THREAD=y CONFIG_ARCH_MMAP_RND_BITS=28 CONFIG_PAGE_SIZE_LESS_THAN_64KB=y CONFIG_PAGE_SIZE_LESS_THAN_256KB=y CONFIG_HAVE_OBJTOOL=y CONFIG_HAVE_JUMP_LABEL_HACK=y CONFIG_HAVE_NOINSTR_HACK=y CONFIG_HAVE_NOINSTR_VALIDATION=y CONFIG_HAVE_UACCESS_VALIDATION=y CONFIG_HAVE_STACK_VALIDATION=y CONFIG_HAVE_RELIABLE_STACKTRACE=y CONFIG_ISA_BUS_API=y CONFIG_COMPAT_32BIT_TIME=y CONFIG_HAVE_ARCH_VMAP_STACK=y CONFIG_VMAP_STACK=y CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y CONFIG_RANDOMIZE_KSTACK_OFFSET=y CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT=y CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y CONFIG_STRICT_KERNEL_RWX=y CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y CONFIG_STRICT_MODULE_RWX=y CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y CONFIG_ARCH_USE_MEMREMAP_PROT=y # CONFIG_LOCK_EVENT_COUNTS is not set CONFIG_ARCH_HAS_MEM_ENCRYPT=y CONFIG_HAVE_STATIC_CALL=y CONFIG_HAVE_STATIC_CALL_INLINE=y CONFIG_HAVE_PREEMPT_DYNAMIC=y CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y CONFIG_ARCH_HAS_ELFCORE_COMPAT=y CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y CONFIG_DYNAMIC_SIGFRAME=y # # GCOV-based kernel profiling # # CONFIG_GCOV_KERNEL is not set CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y # end of GCOV-based kernel profiling CONFIG_HAVE_GCC_PLUGINS=y CONFIG_GCC_PLUGINS=y # CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set # end of General architecture-dependent options CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 CONFIG_MODULES=y # CONFIG_MODULE_FORCE_LOAD is not set # CONFIG_MODULE_UNLOAD is not set # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set # CONFIG_MODULE_SIG is not set CONFIG_MODULE_COMPRESS_NONE=y # CONFIG_MODULE_COMPRESS_GZIP is not set # CONFIG_MODULE_COMPRESS_XZ is not set # CONFIG_MODULE_COMPRESS_ZSTD is not set CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=y CONFIG_MODPROBE_PATH="/sbin/modprobe" CONFIG_TRIM_UNUSED_KSYMS=y CONFIG_UNUSED_KSYMS_WHITELIST="" CONFIG_MODULES_TREE_LOOKUP=y CONFIG_BLOCK=y CONFIG_BLOCK_LEGACY_AUTOLOAD=y CONFIG_BLK_RQ_ALLOC_TIME=y CONFIG_BLK_CGROUP_RWSTAT=y CONFIG_BLK_DEV_BSG_COMMON=y CONFIG_BLK_ICQ=y CONFIG_BLK_DEV_BSGLIB=y # CONFIG_BLK_DEV_INTEGRITY is not set # CONFIG_BLK_DEV_ZONED is not set CONFIG_BLK_DEV_THROTTLING=y # CONFIG_BLK_DEV_THROTTLING_LOW is not set # CONFIG_BLK_WBT is not set CONFIG_BLK_CGROUP_IOLATENCY=y # CONFIG_BLK_CGROUP_FC_APPID is not set CONFIG_BLK_CGROUP_IOCOST=y # CONFIG_BLK_CGROUP_IOPRIO is not set # CONFIG_BLK_DEBUG_FS is not set # CONFIG_BLK_SED_OPAL is not set # CONFIG_BLK_INLINE_ENCRYPTION is not set # # Partition Types # CONFIG_PARTITION_ADVANCED=y CONFIG_ACORN_PARTITION=y # CONFIG_ACORN_PARTITION_CUMANA is not set # CONFIG_ACORN_PARTITION_EESOX is not set # CONFIG_ACORN_PARTITION_ICS is not set # CONFIG_ACORN_PARTITION_ADFS is not set CONFIG_ACORN_PARTITION_POWERTEC=y CONFIG_ACORN_PARTITION_RISCIX=y # CONFIG_AIX_PARTITION is not set CONFIG_OSF_PARTITION=y CONFIG_AMIGA_PARTITION=y # CONFIG_ATARI_PARTITION is not set # CONFIG_MAC_PARTITION is not set CONFIG_MSDOS_PARTITION=y CONFIG_BSD_DISKLABEL=y CONFIG_MINIX_SUBPARTITION=y # CONFIG_SOLARIS_X86_PARTITION is not set CONFIG_UNIXWARE_DISKLABEL=y CONFIG_LDM_PARTITION=y # CONFIG_LDM_DEBUG is not set # CONFIG_SGI_PARTITION is not set CONFIG_ULTRIX_PARTITION=y CONFIG_SUN_PARTITION=y # CONFIG_KARMA_PARTITION is not set CONFIG_EFI_PARTITION=y CONFIG_SYSV68_PARTITION=y CONFIG_CMDLINE_PARTITION=y # end of Partition Types CONFIG_BLK_MQ_PCI=y CONFIG_BLK_MQ_VIRTIO=y CONFIG_BLK_PM=y # # IO Schedulers # CONFIG_MQ_IOSCHED_DEADLINE=y # CONFIG_MQ_IOSCHED_KYBER is not set CONFIG_IOSCHED_BFQ=m # CONFIG_BFQ_GROUP_IOSCHED is not set # end of IO Schedulers CONFIG_PADATA=y CONFIG_ASN1=y CONFIG_UNINLINE_SPIN_UNLOCK=y CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y CONFIG_MUTEX_SPIN_ON_OWNER=y CONFIG_RWSEM_SPIN_ON_OWNER=y CONFIG_LOCK_SPIN_ON_OWNER=y CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y CONFIG_QUEUED_SPINLOCKS=y CONFIG_ARCH_USE_QUEUED_RWLOCKS=y CONFIG_QUEUED_RWLOCKS=y CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y CONFIG_FREEZER=y # # Executable file formats # CONFIG_BINFMT_ELF=y CONFIG_ELFCORE=y CONFIG_BINFMT_SCRIPT=y # CONFIG_BINFMT_MISC is not set CONFIG_COREDUMP=y # end of Executable file formats # # Memory Management options # # CONFIG_SWAP is not set # # SLAB allocator options # # CONFIG_SLAB is not set CONFIG_SLUB=y # CONFIG_SLOB is not set CONFIG_SLAB_MERGE_DEFAULT=y CONFIG_SLAB_FREELIST_RANDOM=y # CONFIG_SLAB_FREELIST_HARDENED is not set # CONFIG_SLUB_STATS is not set # CONFIG_SLUB_CPU_PARTIAL is not set # end of SLAB allocator options # CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set # CONFIG_COMPAT_BRK is not set CONFIG_SPARSEMEM=y CONFIG_SPARSEMEM_EXTREME=y CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y CONFIG_SPARSEMEM_VMEMMAP=y CONFIG_HAVE_FAST_GUP=y CONFIG_NUMA_KEEP_MEMINFO=y CONFIG_MEMORY_ISOLATION=y CONFIG_EXCLUSIVE_SYSTEM_RAM=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y CONFIG_MEMORY_HOTPLUG=y # CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set # CONFIG_MEMORY_HOTREMOVE is not set CONFIG_MHP_MEMMAP_ON_MEMORY=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y CONFIG_COMPACTION=y # CONFIG_PAGE_REPORTING is not set CONFIG_MIGRATION=y CONFIG_CONTIG_ALLOC=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_VIRT_TO_BUS=y CONFIG_MMU_NOTIFIER=y # CONFIG_KSM is not set CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_ARCH_WANT_GENERAL_HUGETLB=y CONFIG_ARCH_WANTS_THP_SWAP=y # CONFIG_TRANSPARENT_HUGEPAGE is not set CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y CONFIG_USE_PERCPU_NUMA_NODE_ID=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y # CONFIG_CMA is not set # CONFIG_MEM_SOFT_DIRTY is not set CONFIG_GENERIC_EARLY_IOREMAP=y CONFIG_DEFERRED_STRUCT_PAGE_INIT=y CONFIG_PAGE_IDLE_FLAG=y CONFIG_IDLE_PAGE_TRACKING=y CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y CONFIG_ARCH_HAS_VM_GET_PAGE_PROT=y CONFIG_ARCH_HAS_PTE_DEVMAP=y CONFIG_ARCH_HAS_ZONE_DMA_SET=y # CONFIG_ZONE_DMA is not set CONFIG_ZONE_DMA32=y # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_PERCPU_STATS=y # CONFIG_GUP_TEST is not set CONFIG_ARCH_HAS_PTE_SPECIAL=y CONFIG_USERFAULTFD=y CONFIG_HAVE_ARCH_USERFAULTFD_WP=y CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y CONFIG_PTE_MARKER=y CONFIG_PTE_MARKER_UFFD_WP=y # # Data Access Monitoring # CONFIG_DAMON=y CONFIG_DAMON_VADDR=y CONFIG_DAMON_PADDR=y # CONFIG_DAMON_SYSFS is not set # CONFIG_DAMON_DBGFS is not set CONFIG_DAMON_RECLAIM=y # end of Data Access Monitoring # end of Memory Management options CONFIG_NET=y # # Networking options # CONFIG_PACKET=y # CONFIG_PACKET_DIAG is not set CONFIG_UNIX=y CONFIG_UNIX_SCM=y CONFIG_AF_UNIX_OOB=y # CONFIG_UNIX_DIAG is not set # CONFIG_TLS is not set # CONFIG_XFRM_USER is not set # CONFIG_NET_KEY is not set # CONFIG_XDP_SOCKETS is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set # CONFIG_IP_ADVANCED_ROUTER is not set CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y # CONFIG_IP_PNP_BOOTP is not set # CONFIG_IP_PNP_RARP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE_DEMUX is not set CONFIG_NET_IP_TUNNEL=y # CONFIG_SYN_COOKIES is not set # CONFIG_NET_IPVTI is not set # CONFIG_NET_FOU is not set # CONFIG_NET_FOU_IP_TUNNELS is not set # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set CONFIG_INET_TUNNEL=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_INET_UDP_DIAG is not set # CONFIG_INET_RAW_DIAG is not set # CONFIG_INET_DIAG_DESTROY is not set # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_TCP_MD5SIG is not set CONFIG_IPV6=y # CONFIG_IPV6_ROUTER_PREF is not set # CONFIG_IPV6_OPTIMISTIC_DAD is not set # CONFIG_INET6_AH is not set # CONFIG_INET6_ESP is not set # CONFIG_INET6_IPCOMP is not set # CONFIG_IPV6_MIP6 is not set # CONFIG_IPV6_VTI is not set CONFIG_IPV6_SIT=y # CONFIG_IPV6_SIT_6RD is not set CONFIG_IPV6_NDISC_NODETYPE=y # CONFIG_IPV6_TUNNEL is not set # CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_IPV6_MROUTE is not set # CONFIG_IPV6_SEG6_LWTUNNEL is not set # CONFIG_IPV6_SEG6_HMAC is not set # CONFIG_IPV6_RPL_LWTUNNEL is not set # CONFIG_IPV6_IOAM6_LWTUNNEL is not set # CONFIG_NETLABEL is not set # CONFIG_MPTCP is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETWORK_PHY_TIMESTAMPING is not set # CONFIG_NETFILTER is not set # CONFIG_BPFILTER is not set # CONFIG_IP_DCCP is not set # CONFIG_IP_SCTP is not set # CONFIG_RDS is not set # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_L2TP is not set # CONFIG_BRIDGE is not set # CONFIG_NET_DSA is not set # CONFIG_VLAN_8021Q is not set # CONFIG_DECNET is not set # CONFIG_LLC2 is not set # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_PHONET is not set # CONFIG_6LOWPAN is not set # CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set CONFIG_DNS_RESOLVER=m # CONFIG_BATMAN_ADV is not set # CONFIG_OPENVSWITCH is not set # CONFIG_VSOCKETS is not set # CONFIG_NETLINK_DIAG is not set # CONFIG_MPLS is not set # CONFIG_NET_NSH is not set # CONFIG_HSR is not set # CONFIG_NET_SWITCHDEV is not set # CONFIG_NET_L3_MASTER_DEV is not set # CONFIG_QRTR is not set # CONFIG_NET_NCSI is not set CONFIG_PCPU_DEV_REFCNT=y CONFIG_RPS=y CONFIG_RFS_ACCEL=y CONFIG_SOCK_RX_QUEUE_MAPPING=y CONFIG_XPS=y # CONFIG_CGROUP_NET_PRIO is not set # CONFIG_CGROUP_NET_CLASSID is not set CONFIG_NET_RX_BUSY_POLL=y CONFIG_BQL=y CONFIG_NET_FLOW_LIMIT=y # # Network testing # # CONFIG_NET_PKTGEN is not set # CONFIG_NET_DROP_MONITOR is not set # end of Network testing # end of Networking options # CONFIG_HAMRADIO is not set # CONFIG_CAN is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set # CONFIG_AF_KCM is not set # CONFIG_MCTP is not set CONFIG_WIRELESS=y # CONFIG_CFG80211 is not set # # CFG80211 needs to be enabled for MAC80211 # CONFIG_MAC80211_STA_HASH_MAX_SIZE=0 # CONFIG_RFKILL is not set CONFIG_NET_9P=y CONFIG_NET_9P_FD=y CONFIG_NET_9P_VIRTIO=m # CONFIG_NET_9P_XEN is not set # CONFIG_NET_9P_DEBUG is not set # CONFIG_CAIF is not set # CONFIG_CEPH_LIB is not set # CONFIG_NFC is not set # CONFIG_PSAMPLE is not set # CONFIG_NET_IFE is not set # CONFIG_LWTUNNEL is not set CONFIG_DST_CACHE=y CONFIG_GRO_CELLS=y CONFIG_NET_SOCK_MSG=y CONFIG_PAGE_POOL=y # CONFIG_PAGE_POOL_STATS is not set CONFIG_FAILOVER=m CONFIG_ETHTOOL_NETLINK=y # # Device Drivers # CONFIG_HAVE_EISA=y # CONFIG_EISA is not set CONFIG_HAVE_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y # CONFIG_PCIEPORTBUS is not set CONFIG_PCIEASPM=y CONFIG_PCIEASPM_DEFAULT=y # CONFIG_PCIEASPM_POWERSAVE is not set # CONFIG_PCIEASPM_POWER_SUPERSAVE is not set # CONFIG_PCIEASPM_PERFORMANCE is not set # CONFIG_PCIE_PTM is not set # CONFIG_PCI_MSI is not set CONFIG_PCI_QUIRKS=y # CONFIG_PCI_DEBUG is not set # CONFIG_PCI_STUB is not set CONFIG_PCI_LOCKLESS_CONFIG=y # CONFIG_PCI_IOV is not set # CONFIG_PCI_PRI is not set # CONFIG_PCI_PASID is not set CONFIG_PCI_LABEL=y # CONFIG_PCIE_BUS_TUNE_OFF is not set CONFIG_PCIE_BUS_DEFAULT=y # CONFIG_PCIE_BUS_SAFE is not set # CONFIG_PCIE_BUS_PERFORMANCE is not set # CONFIG_PCIE_BUS_PEER2PEER is not set CONFIG_VGA_ARB=y CONFIG_VGA_ARB_MAX_GPUS=16 # CONFIG_HOTPLUG_PCI is not set # # PCI controller drivers # # CONFIG_PCI_FTPCI100 is not set # CONFIG_PCI_HOST_GENERIC is not set # # DesignWare PCI Core Support # # end of DesignWare PCI Core Support # # Mobiveil PCIe Core Support # # end of Mobiveil PCIe Core Support # # Cadence PCIe controllers support # # CONFIG_PCIE_CADENCE_PLAT_HOST is not set # CONFIG_PCI_J721E_HOST is not set # end of Cadence PCIe controllers support # end of PCI controller drivers # # PCI Endpoint # # CONFIG_PCI_ENDPOINT is not set # end of PCI Endpoint # # PCI switch controller drivers # # CONFIG_PCI_SW_SWITCHTEC is not set # end of PCI switch controller drivers # CONFIG_CXL_BUS is not set CONFIG_PCCARD=y CONFIG_PCMCIA=m CONFIG_PCMCIA_LOAD_CIS=y CONFIG_CARDBUS=y # # PC-card bridges # # CONFIG_YENTA is not set # CONFIG_PD6729 is not set # CONFIG_I82092 is not set # CONFIG_RAPIDIO is not set # # Generic Driver Options # CONFIG_UEVENT_HELPER=y CONFIG_UEVENT_HELPER_PATH="" CONFIG_DEVTMPFS=y # CONFIG_DEVTMPFS_MOUNT is not set # CONFIG_DEVTMPFS_SAFE is not set # CONFIG_STANDALONE is not set CONFIG_PREVENT_FIRMWARE_BUILD=y # # Firmware loader # CONFIG_FW_LOADER=m CONFIG_FW_LOADER_PAGED_BUF=y CONFIG_FW_LOADER_SYSFS=y CONFIG_EXTRA_FIRMWARE="" CONFIG_FW_LOADER_USER_HELPER=y CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y # CONFIG_FW_LOADER_COMPRESS is not set CONFIG_FW_CACHE=y # CONFIG_FW_UPLOAD is not set # end of Firmware loader # CONFIG_ALLOW_DEV_COREDUMP is not set # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set # CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set CONFIG_HMEM_REPORTING=y # CONFIG_TEST_ASYNC_DRIVER_PROBE is not set CONFIG_SYS_HYPERVISOR=y CONFIG_GENERIC_CPU_AUTOPROBE=y CONFIG_GENERIC_CPU_VULNERABILITIES=y CONFIG_REGMAP=y CONFIG_REGMAP_I2C=y CONFIG_REGMAP_SPMI=y CONFIG_REGMAP_W1=m CONFIG_REGMAP_MMIO=y CONFIG_REGMAP_IRQ=y CONFIG_DMA_SHARED_BUFFER=y # CONFIG_DMA_FENCE_TRACE is not set # end of Generic Driver Options # # Bus devices # CONFIG_MHI_BUS=y # CONFIG_MHI_BUS_DEBUG is not set # CONFIG_MHI_BUS_PCI_GENERIC is not set # CONFIG_MHI_BUS_EP is not set # end of Bus devices # CONFIG_CONNECTOR is not set # # Firmware Drivers # # # ARM System Control and Management Interface Protocol # # end of ARM System Control and Management Interface Protocol CONFIG_EDD=m CONFIG_EDD_OFF=y CONFIG_FIRMWARE_MEMMAP=y CONFIG_DMIID=y # CONFIG_DMI_SYSFS is not set CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y CONFIG_ISCSI_IBFT_FIND=y CONFIG_ISCSI_IBFT=m CONFIG_FW_CFG_SYSFS=y # CONFIG_FW_CFG_SYSFS_CMDLINE is not set # CONFIG_SYSFB_SIMPLEFB is not set CONFIG_GOOGLE_FIRMWARE=y # CONFIG_GOOGLE_SMI is not set CONFIG_GOOGLE_COREBOOT_TABLE=m CONFIG_GOOGLE_MEMCONSOLE=y CONFIG_GOOGLE_MEMCONSOLE_X86_LEGACY=y CONFIG_GOOGLE_MEMCONSOLE_COREBOOT=m CONFIG_GOOGLE_VPD=m # # EFI (Extensible Firmware Interface) Support # CONFIG_EFI_VARS=y CONFIG_EFI_ESRT=y CONFIG_EFI_VARS_PSTORE=m CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE=y CONFIG_EFI_RUNTIME_MAP=y CONFIG_EFI_FAKE_MEMMAP=y CONFIG_EFI_MAX_FAKE_MEM=8 # CONFIG_EFI_SOFT_RESERVE is not set CONFIG_EFI_DXE_MEM_ATTRIBUTES=y CONFIG_EFI_RUNTIME_WRAPPERS=y CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y # CONFIG_EFI_BOOTLOADER_CONTROL is not set CONFIG_EFI_CAPSULE_LOADER=y # CONFIG_EFI_TEST is not set CONFIG_EFI_DEV_PATH_PARSER=y CONFIG_APPLE_PROPERTIES=y CONFIG_RESET_ATTACK_MITIGATION=y CONFIG_EFI_RCI2_TABLE=y CONFIG_EFI_DISABLE_PCI_DMA=y CONFIG_EFI_EARLYCON=y # CONFIG_EFI_CUSTOM_SSDT_OVERLAYS is not set # CONFIG_EFI_DISABLE_RUNTIME is not set # CONFIG_EFI_COCO_SECRET is not set # end of EFI (Extensible Firmware Interface) Support # # Tegra firmware driver # # end of Tegra firmware driver # end of Firmware Drivers CONFIG_GNSS=y CONFIG_GNSS_SERIAL=y # CONFIG_GNSS_MTK_SERIAL is not set CONFIG_GNSS_SIRF_SERIAL=y CONFIG_GNSS_UBX_SERIAL=y CONFIG_MTD=y # CONFIG_MTD_TESTS is not set # # Partition parsers # CONFIG_MTD_AR7_PARTS=m # CONFIG_MTD_CMDLINE_PARTS is not set # CONFIG_MTD_OF_PARTS is not set CONFIG_MTD_REDBOOT_PARTS=y CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1 # CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set # CONFIG_MTD_REDBOOT_PARTS_READONLY is not set # end of Partition parsers # # User Modules And Translation Layers # CONFIG_MTD_BLKDEVS=y # CONFIG_MTD_BLOCK is not set CONFIG_MTD_BLOCK_RO=y # # Note that in some cases UBI block is preferred. See MTD_UBI_BLOCK. # # CONFIG_FTL is not set CONFIG_NFTL=y # CONFIG_NFTL_RW is not set CONFIG_INFTL=m CONFIG_RFD_FTL=m # CONFIG_SSFDC is not set CONFIG_SM_FTL=y # CONFIG_MTD_OOPS is not set # CONFIG_MTD_PARTITIONED_MASTER is not set # # RAM/ROM/Flash chip drivers # CONFIG_MTD_CFI=y # CONFIG_MTD_JEDECPROBE is not set CONFIG_MTD_GEN_PROBE=y CONFIG_MTD_CFI_ADV_OPTIONS=y # CONFIG_MTD_CFI_NOSWAP is not set # CONFIG_MTD_CFI_BE_BYTE_SWAP is not set CONFIG_MTD_CFI_LE_BYTE_SWAP=y CONFIG_MTD_CFI_GEOMETRY=y # CONFIG_MTD_MAP_BANK_WIDTH_1 is not set CONFIG_MTD_MAP_BANK_WIDTH_2=y # CONFIG_MTD_MAP_BANK_WIDTH_4 is not set # CONFIG_MTD_MAP_BANK_WIDTH_8 is not set # CONFIG_MTD_MAP_BANK_WIDTH_16 is not set # CONFIG_MTD_MAP_BANK_WIDTH_32 is not set # CONFIG_MTD_CFI_I1 is not set # CONFIG_MTD_CFI_I2 is not set CONFIG_MTD_CFI_I4=y CONFIG_MTD_CFI_I8=y # CONFIG_MTD_OTP is not set # CONFIG_MTD_CFI_INTELEXT is not set CONFIG_MTD_CFI_AMDSTD=y CONFIG_MTD_CFI_STAA=y CONFIG_MTD_CFI_UTIL=y CONFIG_MTD_RAM=m CONFIG_MTD_ROM=y CONFIG_MTD_ABSENT=m # end of RAM/ROM/Flash chip drivers # # Mapping drivers for chip access # CONFIG_MTD_COMPLEX_MAPPINGS=y CONFIG_MTD_PHYSMAP=y CONFIG_MTD_PHYSMAP_COMPAT=y CONFIG_MTD_PHYSMAP_START=0x8000000 CONFIG_MTD_PHYSMAP_LEN=0 CONFIG_MTD_PHYSMAP_BANKWIDTH=2 CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_PHYSMAP_VERSATILE is not set # CONFIG_MTD_PHYSMAP_GEMINI is not set CONFIG_MTD_PHYSMAP_GPIO_ADDR=y # CONFIG_MTD_PCI is not set # CONFIG_MTD_PCMCIA is not set # CONFIG_MTD_INTEL_VR_NOR is not set # CONFIG_MTD_PLATRAM is not set # end of Mapping drivers for chip access # # Self-contained MTD device drivers # # CONFIG_MTD_PMC551 is not set CONFIG_MTD_SLRAM=m # CONFIG_MTD_PHRAM is not set CONFIG_MTD_MTDRAM=m CONFIG_MTDRAM_TOTAL_SIZE=4096 CONFIG_MTDRAM_ERASE_SIZE=128 CONFIG_MTD_BLOCK2MTD=m # # Disk-On-Chip Device Drivers # # CONFIG_MTD_DOCG3 is not set # end of Self-contained MTD device drivers # # NAND # CONFIG_MTD_NAND_CORE=y CONFIG_MTD_ONENAND=y CONFIG_MTD_ONENAND_VERIFY_WRITE=y CONFIG_MTD_ONENAND_GENERIC=y CONFIG_MTD_ONENAND_OTP=y CONFIG_MTD_ONENAND_2X_PROGRAM=y CONFIG_MTD_RAW_NAND=m # # Raw/parallel NAND flash controllers # CONFIG_MTD_NAND_DENALI=m # CONFIG_MTD_NAND_DENALI_PCI is not set CONFIG_MTD_NAND_DENALI_DT=m # CONFIG_MTD_NAND_CAFE is not set CONFIG_MTD_NAND_MXIC=m CONFIG_MTD_NAND_GPIO=m CONFIG_MTD_NAND_PLATFORM=m CONFIG_MTD_NAND_CADENCE=m # CONFIG_MTD_NAND_ARASAN is not set # CONFIG_MTD_NAND_INTEL_LGM is not set # # Misc # CONFIG_MTD_NAND_NANDSIM=m # CONFIG_MTD_NAND_RICOH is not set # CONFIG_MTD_NAND_DISKONCHIP is not set # # ECC engine support # CONFIG_MTD_NAND_ECC=y CONFIG_MTD_NAND_ECC_SW_HAMMING=y # CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC is not set # CONFIG_MTD_NAND_ECC_SW_BCH is not set # CONFIG_MTD_NAND_ECC_MXIC is not set # end of ECC engine support # end of NAND # # LPDDR & LPDDR2 PCM memory drivers # CONFIG_MTD_LPDDR=y CONFIG_MTD_QINFO_PROBE=y # end of LPDDR & LPDDR2 PCM memory drivers CONFIG_MTD_UBI=y CONFIG_MTD_UBI_WL_THRESHOLD=4096 CONFIG_MTD_UBI_BEB_LIMIT=20 # CONFIG_MTD_UBI_FASTMAP is not set CONFIG_MTD_UBI_GLUEBI=y CONFIG_MTD_UBI_BLOCK=y CONFIG_MTD_HYPERBUS=y CONFIG_DTC=y CONFIG_OF=y # CONFIG_OF_UNITTEST is not set CONFIG_OF_FLATTREE=y CONFIG_OF_EARLY_FLATTREE=y CONFIG_OF_KOBJ=y CONFIG_OF_DYNAMIC=y CONFIG_OF_ADDRESS=y CONFIG_OF_IRQ=y CONFIG_OF_RESERVED_MEM=y CONFIG_OF_RESOLVE=y CONFIG_OF_OVERLAY=y CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y CONFIG_PARPORT=m CONFIG_PARPORT_PC=m # CONFIG_PARPORT_SERIAL is not set CONFIG_PARPORT_PC_FIFO=y CONFIG_PARPORT_PC_SUPERIO=y # CONFIG_PARPORT_PC_PCMCIA is not set # CONFIG_PARPORT_AX88796 is not set CONFIG_PARPORT_1284=y CONFIG_PNP=y # CONFIG_PNP_DEBUG_MESSAGES is not set # # Protocols # CONFIG_PNPACPI=y CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_NULL_BLK is not set # CONFIG_PARIDE is not set # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set # CONFIG_ZRAM is not set # CONFIG_BLK_DEV_LOOP is not set # CONFIG_BLK_DEV_DRBD is not set # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_SX8 is not set # CONFIG_BLK_DEV_RAM is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set CONFIG_XEN_BLKDEV_FRONTEND=y # CONFIG_VIRTIO_BLK is not set # CONFIG_BLK_DEV_RBD is not set # # NVME Support # CONFIG_NVME_CORE=y # CONFIG_BLK_DEV_NVME is not set CONFIG_NVME_MULTIPATH=y # CONFIG_NVME_VERBOSE_ERRORS is not set # CONFIG_NVME_HWMON is not set CONFIG_NVME_FABRICS=y CONFIG_NVME_FC=y # CONFIG_NVME_TCP is not set CONFIG_NVME_TARGET=m # CONFIG_NVME_TARGET_PASSTHRU is not set CONFIG_NVME_TARGET_LOOP=m CONFIG_NVME_TARGET_FC=m CONFIG_NVME_TARGET_FCLOOP=m # CONFIG_NVME_TARGET_TCP is not set # end of NVME Support # # Misc devices # # CONFIG_AD525X_DPOT is not set # CONFIG_DUMMY_IRQ is not set # CONFIG_IBM_ASM is not set # CONFIG_PHANTOM is not set # CONFIG_TIFM_CORE is not set CONFIG_ICS932S401=y # CONFIG_ENCLOSURE_SERVICES is not set CONFIG_HI6421V600_IRQ=m # CONFIG_HP_ILO is not set CONFIG_APDS9802ALS=y CONFIG_ISL29003=m CONFIG_ISL29020=y CONFIG_SENSORS_TSL2550=m CONFIG_SENSORS_BH1770=y # CONFIG_SENSORS_APDS990X is not set CONFIG_HMC6352=y CONFIG_DS1682=m # CONFIG_SRAM is not set # CONFIG_DW_XDATA_PCIE is not set # CONFIG_PCI_ENDPOINT_TEST is not set CONFIG_XILINX_SDFEC=m # CONFIG_OPEN_DICE is not set # CONFIG_C2PORT is not set # # EEPROM support # CONFIG_EEPROM_AT24=y CONFIG_EEPROM_LEGACY=m CONFIG_EEPROM_MAX6875=m CONFIG_EEPROM_93CX6=y CONFIG_EEPROM_IDT_89HPESX=y CONFIG_EEPROM_EE1004=y # end of EEPROM support # CONFIG_CB710_CORE is not set # # Texas Instruments shared transport line discipline # # CONFIG_TI_ST is not set # end of Texas Instruments shared transport line discipline # CONFIG_SENSORS_LIS3_I2C is not set # CONFIG_ALTERA_STAPL is not set # CONFIG_INTEL_MEI is not set # CONFIG_INTEL_MEI_ME is not set # CONFIG_INTEL_MEI_TXE is not set # CONFIG_VMWARE_VMCI is not set # CONFIG_GENWQE is not set CONFIG_ECHO=y # CONFIG_MISC_ALCOR_PCI is not set # CONFIG_MISC_RTSX_PCI is not set # CONFIG_HABANA_AI is not set CONFIG_UACCE=m # CONFIG_PVPANIC is not set # end of Misc devices # # SCSI device support # CONFIG_SCSI_MOD=y # CONFIG_RAID_ATTRS is not set CONFIG_SCSI_COMMON=y CONFIG_SCSI=y CONFIG_SCSI_DMA=y # CONFIG_SCSI_PROC_FS is not set # # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=m # CONFIG_CHR_DEV_ST is not set # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_BLK_DEV_BSG is not set CONFIG_CHR_DEV_SCH=m CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set # # SCSI Transports # CONFIG_SCSI_SPI_ATTRS=y # CONFIG_SCSI_FC_ATTRS is not set # CONFIG_SCSI_ISCSI_ATTRS is not set CONFIG_SCSI_SAS_ATTRS=y CONFIG_SCSI_SAS_LIBSAS=y CONFIG_SCSI_SAS_HOST_SMP=y # CONFIG_SCSI_SRP_ATTRS is not set # end of SCSI Transports CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set CONFIG_ISCSI_BOOT_SYSFS=m # CONFIG_SCSI_CXGB3_ISCSI is not set # CONFIG_SCSI_CXGB4_ISCSI is not set # CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BE2ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_HPSA is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_3W_SAS is not set # CONFIG_SCSI_ACARD is not set # CONFIG_SCSI_AACRAID is not set # CONFIG_SCSI_AIC7XXX is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set # CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_MVUMI is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set # CONFIG_SCSI_ESAS2R is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set # CONFIG_SCSI_MPT3SAS is not set # CONFIG_SCSI_MPT2SAS is not set # CONFIG_SCSI_MPI3MR is not set # CONFIG_SCSI_SMARTPQI is not set # CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_MYRB is not set # CONFIG_SCSI_MYRS is not set # CONFIG_VMWARE_PVSCSI is not set CONFIG_XEN_SCSI_FRONTEND=m # CONFIG_SCSI_SNIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_FDOMAIN_PCI is not set # CONFIG_SCSI_ISCI is not set # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set CONFIG_SCSI_PPA=m CONFIG_SCSI_IMM=m # CONFIG_SCSI_IZIP_EPP16 is not set CONFIG_SCSI_IZIP_SLOW_CTR=y # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set # CONFIG_SCSI_QLA_ISCSI is not set # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_AM53C974 is not set # CONFIG_SCSI_WD719X is not set CONFIG_SCSI_DEBUG=y # CONFIG_SCSI_PMCRAID is not set # CONFIG_SCSI_PM8001 is not set # CONFIG_SCSI_VIRTIO is not set # CONFIG_SCSI_LOWLEVEL_PCMCIA is not set CONFIG_SCSI_DH=y CONFIG_SCSI_DH_RDAC=m CONFIG_SCSI_DH_HP_SW=y CONFIG_SCSI_DH_EMC=m # CONFIG_SCSI_DH_ALUA is not set # end of SCSI device support # CONFIG_ATA is not set # CONFIG_MD is not set CONFIG_TARGET_CORE=y # CONFIG_TCM_IBLOCK is not set CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=y # CONFIG_TCM_USER2 is not set CONFIG_LOOPBACK_TARGET=m # CONFIG_ISCSI_TARGET is not set # CONFIG_FUSION is not set # # IEEE 1394 (FireWire) support # # CONFIG_FIREWIRE is not set # CONFIG_FIREWIRE_NOSY is not set # end of IEEE 1394 (FireWire) support CONFIG_MACINTOSH_DRIVERS=y # CONFIG_MAC_EMUMOUSEBTN is not set CONFIG_NETDEVICES=y CONFIG_NET_CORE=y # CONFIG_BONDING is not set # CONFIG_DUMMY is not set # CONFIG_WIREGUARD is not set # CONFIG_EQUALIZER is not set # CONFIG_NET_FC is not set # CONFIG_NET_TEAM is not set # CONFIG_MACVLAN is not set # CONFIG_IPVLAN is not set # CONFIG_VXLAN is not set # CONFIG_GENEVE is not set # CONFIG_BAREUDP is not set # CONFIG_GTP is not set # CONFIG_MACSEC is not set # CONFIG_NETCONSOLE is not set # CONFIG_TUN is not set # CONFIG_TUN_VNET_CROSS_LE is not set # CONFIG_VETH is not set CONFIG_VIRTIO_NET=m # CONFIG_NLMON is not set # CONFIG_MHI_NET is not set # CONFIG_ARCNET is not set CONFIG_ETHERNET=y CONFIG_NET_VENDOR_3COM=y # CONFIG_PCMCIA_3C574 is not set # CONFIG_PCMCIA_3C589 is not set # CONFIG_VORTEX is not set # CONFIG_TYPHOON is not set CONFIG_NET_VENDOR_ADAPTEC=y # CONFIG_ADAPTEC_STARFIRE is not set CONFIG_NET_VENDOR_AGERE=y # CONFIG_ET131X is not set CONFIG_NET_VENDOR_ALACRITECH=y # CONFIG_SLICOSS is not set CONFIG_NET_VENDOR_ALTEON=y # CONFIG_ACENIC is not set # CONFIG_ALTERA_TSE is not set CONFIG_NET_VENDOR_AMAZON=y # CONFIG_NET_VENDOR_AMD is not set CONFIG_NET_VENDOR_AQUANTIA=y # CONFIG_AQTION is not set CONFIG_NET_VENDOR_ARC=y CONFIG_NET_VENDOR_ASIX=y CONFIG_NET_VENDOR_ATHEROS=y # CONFIG_ATL2 is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set # CONFIG_ATL1C is not set # CONFIG_ALX is not set # CONFIG_CX_ECAT is not set CONFIG_NET_VENDOR_BROADCOM=y # CONFIG_B44 is not set # CONFIG_BCMGENET is not set # CONFIG_BNX2 is not set # CONFIG_CNIC is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2X is not set # CONFIG_SYSTEMPORT is not set # CONFIG_BNXT is not set CONFIG_NET_VENDOR_CADENCE=y # CONFIG_MACB is not set CONFIG_NET_VENDOR_CAVIUM=y # CONFIG_THUNDER_NIC_PF is not set # CONFIG_THUNDER_NIC_VF is not set # CONFIG_THUNDER_NIC_BGX is not set # CONFIG_THUNDER_NIC_RGX is not set # CONFIG_LIQUIDIO is not set CONFIG_NET_VENDOR_CHELSIO=y # CONFIG_CHELSIO_T1 is not set # CONFIG_CHELSIO_T3 is not set # CONFIG_CHELSIO_T4 is not set # CONFIG_CHELSIO_T4VF is not set CONFIG_NET_VENDOR_CISCO=y # CONFIG_ENIC is not set CONFIG_NET_VENDOR_CORTINA=y # CONFIG_GEMINI_ETHERNET is not set CONFIG_NET_VENDOR_DAVICOM=y # CONFIG_DNET is not set CONFIG_NET_VENDOR_DEC=y # CONFIG_NET_TULIP is not set CONFIG_NET_VENDOR_DLINK=y # CONFIG_DL2K is not set # CONFIG_SUNDANCE is not set CONFIG_NET_VENDOR_EMULEX=y # CONFIG_BE2NET is not set CONFIG_NET_VENDOR_ENGLEDER=y # CONFIG_TSNEP is not set CONFIG_NET_VENDOR_EZCHIP=y # CONFIG_EZCHIP_NPS_MANAGEMENT_ENET is not set CONFIG_NET_VENDOR_FUJITSU=y # CONFIG_PCMCIA_FMVJ18X is not set CONFIG_NET_VENDOR_FUNGIBLE=y CONFIG_NET_VENDOR_GOOGLE=y CONFIG_NET_VENDOR_HUAWEI=y CONFIG_NET_VENDOR_I825XX=y CONFIG_NET_VENDOR_INTEL=y # CONFIG_E100 is not set CONFIG_E1000=y # CONFIG_E1000E is not set # CONFIG_IGB is not set # CONFIG_IGBVF is not set # CONFIG_IXGB is not set # CONFIG_IXGBE is not set # CONFIG_I40E is not set # CONFIG_IGC is not set # CONFIG_JME is not set CONFIG_NET_VENDOR_LITEX=y # CONFIG_LITEX_LITEETH is not set CONFIG_NET_VENDOR_MARVELL=y # CONFIG_MVMDIO is not set # CONFIG_SKGE is not set # CONFIG_SKY2 is not set # CONFIG_OCTEON_EP is not set CONFIG_NET_VENDOR_MELLANOX=y # CONFIG_MLX4_EN is not set # CONFIG_MLX5_CORE is not set # CONFIG_MLXSW_CORE is not set # CONFIG_MLXFW is not set CONFIG_NET_VENDOR_MICREL=y # CONFIG_KS8842 is not set # CONFIG_KS8851_MLL is not set # CONFIG_KSZ884X_PCI is not set CONFIG_NET_VENDOR_MICROCHIP=y # CONFIG_LAN743X is not set CONFIG_NET_VENDOR_MICROSEMI=y CONFIG_NET_VENDOR_MICROSOFT=y CONFIG_NET_VENDOR_MYRI=y # CONFIG_MYRI10GE is not set # CONFIG_FEALNX is not set CONFIG_NET_VENDOR_NI=y # CONFIG_NI_XGE_MANAGEMENT_ENET is not set CONFIG_NET_VENDOR_NATSEMI=y # CONFIG_NATSEMI is not set # CONFIG_NS83820 is not set CONFIG_NET_VENDOR_NETERION=y # CONFIG_S2IO is not set # CONFIG_VXGE is not set CONFIG_NET_VENDOR_NETRONOME=y CONFIG_NET_VENDOR_8390=y # CONFIG_PCMCIA_AXNET is not set # CONFIG_NE2K_PCI is not set # CONFIG_PCMCIA_PCNET is not set CONFIG_NET_VENDOR_NVIDIA=y # CONFIG_FORCEDETH is not set CONFIG_NET_VENDOR_OKI=y # CONFIG_ETHOC is not set CONFIG_NET_VENDOR_PACKET_ENGINES=y # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set CONFIG_NET_VENDOR_PENSANDO=y # CONFIG_IONIC is not set CONFIG_NET_VENDOR_QLOGIC=y # CONFIG_QLA3XXX is not set # CONFIG_QLCNIC is not set # CONFIG_NETXEN_NIC is not set # CONFIG_QED is not set CONFIG_NET_VENDOR_BROCADE=y # CONFIG_BNA is not set CONFIG_NET_VENDOR_QUALCOMM=y # CONFIG_QCA7000_UART is not set # CONFIG_QCOM_EMAC is not set # CONFIG_RMNET is not set CONFIG_NET_VENDOR_RDC=y # CONFIG_R6040 is not set CONFIG_NET_VENDOR_REALTEK=y # CONFIG_ATP is not set # CONFIG_8139CP is not set # CONFIG_8139TOO is not set # CONFIG_R8169 is not set CONFIG_NET_VENDOR_RENESAS=y CONFIG_NET_VENDOR_ROCKER=y CONFIG_NET_VENDOR_SAMSUNG=y # CONFIG_SXGBE_ETH is not set CONFIG_NET_VENDOR_SEEQ=y CONFIG_NET_VENDOR_SILAN=y # CONFIG_SC92031 is not set CONFIG_NET_VENDOR_SIS=y # CONFIG_SIS900 is not set # CONFIG_SIS190 is not set CONFIG_NET_VENDOR_SOLARFLARE=y # CONFIG_SFC is not set # CONFIG_SFC_FALCON is not set CONFIG_NET_VENDOR_SMSC=y # CONFIG_PCMCIA_SMC91C92 is not set # CONFIG_EPIC100 is not set # CONFIG_SMSC911X is not set # CONFIG_SMSC9420 is not set CONFIG_NET_VENDOR_SOCIONEXT=y CONFIG_NET_VENDOR_STMICRO=y # CONFIG_STMMAC_ETH is not set CONFIG_NET_VENDOR_SUN=y # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NIU is not set CONFIG_NET_VENDOR_SYNOPSYS=y # CONFIG_DWC_XLGMAC is not set CONFIG_NET_VENDOR_TEHUTI=y # CONFIG_TEHUTI is not set CONFIG_NET_VENDOR_TI=y # CONFIG_TI_CPSW_PHY_SEL is not set # CONFIG_TLAN is not set CONFIG_NET_VENDOR_VERTEXCOM=y CONFIG_NET_VENDOR_VIA=y # CONFIG_VIA_RHINE is not set # CONFIG_VIA_VELOCITY is not set CONFIG_NET_VENDOR_WIZNET=y # CONFIG_WIZNET_W5100 is not set # CONFIG_WIZNET_W5300 is not set CONFIG_NET_VENDOR_XILINX=y # CONFIG_XILINX_EMACLITE is not set # CONFIG_XILINX_AXI_EMAC is not set # CONFIG_XILINX_LL_TEMAC is not set CONFIG_NET_VENDOR_XIRCOM=y # CONFIG_PCMCIA_XIRC2PS is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_NET_SB1000 is not set # CONFIG_PHYLIB is not set # CONFIG_MDIO_DEVICE is not set # # PCS device drivers # # end of PCS device drivers # CONFIG_PLIP is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # # Host-side USB support is needed for USB Network Adapter support # CONFIG_WLAN=y CONFIG_WLAN_VENDOR_ADMTEK=y CONFIG_WLAN_VENDOR_ATH=y # CONFIG_ATH_DEBUG is not set # CONFIG_ATH5K_PCI is not set CONFIG_WLAN_VENDOR_ATMEL=y CONFIG_WLAN_VENDOR_BROADCOM=y CONFIG_WLAN_VENDOR_CISCO=y CONFIG_WLAN_VENDOR_INTEL=y CONFIG_WLAN_VENDOR_INTERSIL=y # CONFIG_HOSTAP is not set CONFIG_WLAN_VENDOR_MARVELL=y CONFIG_WLAN_VENDOR_MEDIATEK=y CONFIG_WLAN_VENDOR_MICROCHIP=y CONFIG_WLAN_VENDOR_PURELIFI=y CONFIG_WLAN_VENDOR_RALINK=y CONFIG_WLAN_VENDOR_REALTEK=y CONFIG_WLAN_VENDOR_RSI=y CONFIG_WLAN_VENDOR_SILABS=y CONFIG_WLAN_VENDOR_ST=y CONFIG_WLAN_VENDOR_TI=y CONFIG_WLAN_VENDOR_ZYDAS=y CONFIG_WLAN_VENDOR_QUANTENNA=y # CONFIG_PCMCIA_RAYCS is not set # CONFIG_WAN is not set # # Wireless WAN # # CONFIG_WWAN is not set # end of Wireless WAN CONFIG_XEN_NETDEV_FRONTEND=y # CONFIG_VMXNET3 is not set # CONFIG_FUJITSU_ES is not set # CONFIG_NETDEVSIM is not set CONFIG_NET_FAILOVER=m # CONFIG_ISDN is not set # # Input device support # CONFIG_INPUT=y CONFIG_INPUT_LEDS=m CONFIG_INPUT_FF_MEMLESS=y CONFIG_INPUT_SPARSEKMAP=y CONFIG_INPUT_MATRIXKMAP=y CONFIG_INPUT_VIVALDIFMAP=y # # Userland interfaces # CONFIG_INPUT_MOUSEDEV=y # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 CONFIG_INPUT_JOYDEV=m CONFIG_INPUT_EVDEV=y CONFIG_INPUT_EVBUG=y # # Input Device Drivers # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ADP5588=y CONFIG_KEYBOARD_ADP5589=y CONFIG_KEYBOARD_ATKBD=y CONFIG_KEYBOARD_QT1050=m CONFIG_KEYBOARD_QT1070=y CONFIG_KEYBOARD_QT2160=m # CONFIG_KEYBOARD_DLINK_DIR685 is not set CONFIG_KEYBOARD_LKKBD=y CONFIG_KEYBOARD_GPIO=y CONFIG_KEYBOARD_GPIO_POLLED=y # CONFIG_KEYBOARD_TCA6416 is not set CONFIG_KEYBOARD_TCA8418=m CONFIG_KEYBOARD_MATRIX=m # CONFIG_KEYBOARD_LM8323 is not set CONFIG_KEYBOARD_LM8333=m CONFIG_KEYBOARD_MAX7359=y CONFIG_KEYBOARD_MCS=y CONFIG_KEYBOARD_MPR121=m CONFIG_KEYBOARD_NEWTON=m CONFIG_KEYBOARD_OPENCORES=m CONFIG_KEYBOARD_SAMSUNG=y # CONFIG_KEYBOARD_GOLDFISH_EVENTS is not set CONFIG_KEYBOARD_STOWAWAY=m CONFIG_KEYBOARD_SUNKBD=y # CONFIG_KEYBOARD_IQS62X is not set CONFIG_KEYBOARD_OMAP4=y CONFIG_KEYBOARD_TM2_TOUCHKEY=m CONFIG_KEYBOARD_TWL4030=m CONFIG_KEYBOARD_XTKBD=y CONFIG_KEYBOARD_CAP11XX=y CONFIG_KEYBOARD_BCM=m CONFIG_KEYBOARD_MTK_PMIC=m CONFIG_KEYBOARD_CYPRESS_SF=m CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=m # CONFIG_MOUSE_PS2_ALPS is not set CONFIG_MOUSE_PS2_BYD=y CONFIG_MOUSE_PS2_LOGIPS2PP=y # CONFIG_MOUSE_PS2_SYNAPTICS is not set CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y # CONFIG_MOUSE_PS2_CYPRESS is not set CONFIG_MOUSE_PS2_LIFEBOOK=y CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_PS2_ELANTECH is not set CONFIG_MOUSE_PS2_SENTELIC=y CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_PS2_FOCALTECH=y CONFIG_MOUSE_PS2_VMMOUSE=y CONFIG_MOUSE_PS2_SMBUS=y # CONFIG_MOUSE_SERIAL is not set # CONFIG_MOUSE_APPLETOUCH is not set # CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_CYAPA is not set # CONFIG_MOUSE_ELAN_I2C is not set CONFIG_MOUSE_VSXXXAA=m # CONFIG_MOUSE_GPIO is not set # CONFIG_MOUSE_SYNAPTICS_I2C is not set # CONFIG_MOUSE_SYNAPTICS_USB is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set CONFIG_INPUT_TOUCHSCREEN=y CONFIG_TOUCHSCREEN_88PM860X=y CONFIG_TOUCHSCREEN_AD7879=m # CONFIG_TOUCHSCREEN_AD7879_I2C is not set CONFIG_TOUCHSCREEN_AR1021_I2C=m CONFIG_TOUCHSCREEN_ATMEL_MXT=m CONFIG_TOUCHSCREEN_AUO_PIXCIR=m CONFIG_TOUCHSCREEN_BU21013=m CONFIG_TOUCHSCREEN_BU21029=m CONFIG_TOUCHSCREEN_CHIPONE_ICN8318=m CONFIG_TOUCHSCREEN_CHIPONE_ICN8505=m CONFIG_TOUCHSCREEN_CY8CTMA140=m # CONFIG_TOUCHSCREEN_CY8CTMG110 is not set CONFIG_TOUCHSCREEN_CYTTSP_CORE=y CONFIG_TOUCHSCREEN_CYTTSP_I2C=y CONFIG_TOUCHSCREEN_CYTTSP4_CORE=y CONFIG_TOUCHSCREEN_CYTTSP4_I2C=y # CONFIG_TOUCHSCREEN_DA9052 is not set CONFIG_TOUCHSCREEN_DYNAPRO=m CONFIG_TOUCHSCREEN_HAMPSHIRE=y CONFIG_TOUCHSCREEN_EETI=y CONFIG_TOUCHSCREEN_EGALAX=m # CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set CONFIG_TOUCHSCREEN_EXC3000=y # CONFIG_TOUCHSCREEN_FUJITSU is not set # CONFIG_TOUCHSCREEN_GOODIX is not set CONFIG_TOUCHSCREEN_HIDEEP=y CONFIG_TOUCHSCREEN_HYCON_HY46XX=m # CONFIG_TOUCHSCREEN_ILI210X is not set # CONFIG_TOUCHSCREEN_ILITEK is not set # CONFIG_TOUCHSCREEN_S6SY761 is not set CONFIG_TOUCHSCREEN_GUNZE=m CONFIG_TOUCHSCREEN_EKTF2127=m CONFIG_TOUCHSCREEN_ELAN=y # CONFIG_TOUCHSCREEN_ELO is not set CONFIG_TOUCHSCREEN_WACOM_W8001=m CONFIG_TOUCHSCREEN_WACOM_I2C=m CONFIG_TOUCHSCREEN_MAX11801=y CONFIG_TOUCHSCREEN_MCS5000=m # CONFIG_TOUCHSCREEN_MMS114 is not set # CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set CONFIG_TOUCHSCREEN_MSG2638=m CONFIG_TOUCHSCREEN_MTOUCH=m # CONFIG_TOUCHSCREEN_IMAGIS is not set CONFIG_TOUCHSCREEN_IMX6UL_TSC=m CONFIG_TOUCHSCREEN_INEXIO=m # CONFIG_TOUCHSCREEN_MK712 is not set CONFIG_TOUCHSCREEN_PENMOUNT=y CONFIG_TOUCHSCREEN_EDT_FT5X06=m CONFIG_TOUCHSCREEN_TOUCHRIGHT=y CONFIG_TOUCHSCREEN_TOUCHWIN=y # CONFIG_TOUCHSCREEN_TI_AM335X_TSC is not set CONFIG_TOUCHSCREEN_PIXCIR=m CONFIG_TOUCHSCREEN_WDT87XX_I2C=m # CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set CONFIG_TOUCHSCREEN_TOUCHIT213=m # CONFIG_TOUCHSCREEN_TSC_SERIO is not set # CONFIG_TOUCHSCREEN_TSC2004 is not set # CONFIG_TOUCHSCREEN_TSC2007 is not set # CONFIG_TOUCHSCREEN_RM_TS is not set # CONFIG_TOUCHSCREEN_SILEAD is not set CONFIG_TOUCHSCREEN_SIS_I2C=m CONFIG_TOUCHSCREEN_ST1232=m CONFIG_TOUCHSCREEN_STMFTS=y CONFIG_TOUCHSCREEN_SX8654=m CONFIG_TOUCHSCREEN_TPS6507X=y CONFIG_TOUCHSCREEN_ZET6223=y # CONFIG_TOUCHSCREEN_ZFORCE is not set CONFIG_TOUCHSCREEN_ROHM_BU21023=y CONFIG_TOUCHSCREEN_IQS5XX=m CONFIG_TOUCHSCREEN_ZINITIX=m # CONFIG_INPUT_MISC is not set CONFIG_RMI4_CORE=m CONFIG_RMI4_I2C=m # CONFIG_RMI4_SMB is not set CONFIG_RMI4_F03=y CONFIG_RMI4_F03_SERIO=m # CONFIG_RMI4_F11 is not set # CONFIG_RMI4_F12 is not set CONFIG_RMI4_F30=y CONFIG_RMI4_F34=y # CONFIG_RMI4_F3A is not set CONFIG_RMI4_F55=y # # Hardware I/O ports # CONFIG_SERIO=y CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y CONFIG_SERIO_I8042=y CONFIG_SERIO_SERPORT=y # CONFIG_SERIO_CT82C710 is not set CONFIG_SERIO_PARKBD=m # CONFIG_SERIO_PCIPS2 is not set CONFIG_SERIO_LIBPS2=y CONFIG_SERIO_RAW=y # CONFIG_SERIO_ALTERA_PS2 is not set CONFIG_SERIO_PS2MULT=m CONFIG_SERIO_ARC_PS2=y CONFIG_SERIO_APBPS2=m CONFIG_SERIO_GPIO_PS2=y CONFIG_USERIO=y CONFIG_GAMEPORT=m CONFIG_GAMEPORT_NS558=m # CONFIG_GAMEPORT_L4 is not set # CONFIG_GAMEPORT_EMU10K1 is not set # CONFIG_GAMEPORT_FM801 is not set # end of Hardware I/O ports # end of Input device support # # Character devices # CONFIG_TTY=y # CONFIG_VT is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 CONFIG_LDISC_AUTOLOAD=y # # Serial drivers # CONFIG_SERIAL_EARLYCON=y CONFIG_SERIAL_8250=y # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set CONFIG_SERIAL_8250_PNP=y CONFIG_SERIAL_8250_16550A_VARIANTS=y # CONFIG_SERIAL_8250_FINTEK is not set CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_SERIAL_8250_DMA is not set CONFIG_SERIAL_8250_PCI=y CONFIG_SERIAL_8250_EXAR=y # CONFIG_SERIAL_8250_CS is not set CONFIG_SERIAL_8250_MEN_MCB=m CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 # CONFIG_SERIAL_8250_EXTENDED is not set # CONFIG_SERIAL_8250_ASPEED_VUART is not set CONFIG_SERIAL_8250_DWLIB=y CONFIG_SERIAL_8250_DW=m CONFIG_SERIAL_8250_RT288X=y CONFIG_SERIAL_8250_LPSS=y CONFIG_SERIAL_8250_MID=y CONFIG_SERIAL_8250_PERICOM=y CONFIG_SERIAL_OF_PLATFORM=m # # Non-8250 serial port support # # CONFIG_SERIAL_UARTLITE is not set CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_SERIAL_SIFIVE=y CONFIG_SERIAL_SIFIVE_CONSOLE=y CONFIG_SERIAL_LANTIQ=m CONFIG_SERIAL_SCCNXP=y CONFIG_SERIAL_SCCNXP_CONSOLE=y # CONFIG_SERIAL_SC16IS7XX is not set CONFIG_SERIAL_ALTERA_JTAGUART=m CONFIG_SERIAL_ALTERA_UART=m CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4 CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200 CONFIG_SERIAL_XILINX_PS_UART=m CONFIG_SERIAL_ARC=m CONFIG_SERIAL_ARC_NR_PORTS=1 # CONFIG_SERIAL_RP2 is not set # CONFIG_SERIAL_FSL_LPUART is not set # CONFIG_SERIAL_FSL_LINFLEXUART is not set CONFIG_SERIAL_CONEXANT_DIGICOLOR=m # CONFIG_SERIAL_MEN_Z135 is not set CONFIG_SERIAL_SPRD=m # end of Serial drivers CONFIG_SERIAL_MCTRL_GPIO=y CONFIG_SERIAL_NONSTANDARD=y # CONFIG_MOXA_INTELLIO is not set # CONFIG_MOXA_SMARTIO is not set # CONFIG_SYNCLINK_GT is not set CONFIG_N_HDLC=y CONFIG_GOLDFISH_TTY=m # CONFIG_N_GSM is not set # CONFIG_NOZOMI is not set # CONFIG_NULL_TTY is not set CONFIG_HVC_DRIVER=y CONFIG_HVC_IRQ=y CONFIG_HVC_XEN=y # CONFIG_HVC_XEN_FRONTEND is not set CONFIG_RPMSG_TTY=m CONFIG_SERIAL_DEV_BUS=y CONFIG_SERIAL_DEV_CTRL_TTYPORT=y CONFIG_TTY_PRINTK=y CONFIG_TTY_PRINTK_LEVEL=6 # CONFIG_PRINTER is not set CONFIG_PPDEV=m CONFIG_VIRTIO_CONSOLE=m CONFIG_IPMI_HANDLER=y CONFIG_IPMI_DMI_DECODE=y CONFIG_IPMI_PLAT_DATA=y CONFIG_IPMI_PANIC_EVENT=y # CONFIG_IPMI_PANIC_STRING is not set # CONFIG_IPMI_DEVICE_INTERFACE is not set CONFIG_IPMI_SI=y CONFIG_IPMI_SSIF=y # CONFIG_IPMI_IPMB is not set CONFIG_IPMI_WATCHDOG=m # CONFIG_IPMI_POWEROFF is not set # CONFIG_IPMB_DEVICE_INTERFACE is not set CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_TIMERIOMEM=y CONFIG_HW_RANDOM_INTEL=y # CONFIG_HW_RANDOM_AMD is not set # CONFIG_HW_RANDOM_BA431 is not set # CONFIG_HW_RANDOM_VIA is not set CONFIG_HW_RANDOM_VIRTIO=m # CONFIG_HW_RANDOM_CCTRNG is not set CONFIG_HW_RANDOM_XIPHERA=y # CONFIG_APPLICOM is not set # # PCMCIA character devices # # CONFIG_SYNCLINK_CS is not set CONFIG_CARDMAN_4000=m CONFIG_CARDMAN_4040=m CONFIG_SCR24X=m # CONFIG_IPWIRELESS is not set # end of PCMCIA character devices # CONFIG_MWAVE is not set CONFIG_DEVMEM=y # CONFIG_NVRAM is not set CONFIG_DEVPORT=y # CONFIG_HPET is not set # CONFIG_HANGCHECK_TIMER is not set CONFIG_TCG_TPM=y # CONFIG_HW_RANDOM_TPM is not set # CONFIG_TCG_TIS is not set CONFIG_TCG_TIS_I2C_CR50=m CONFIG_TCG_TIS_I2C_ATMEL=y # CONFIG_TCG_TIS_I2C_INFINEON is not set CONFIG_TCG_TIS_I2C_NUVOTON=y # CONFIG_TCG_NSC is not set # CONFIG_TCG_ATMEL is not set CONFIG_TCG_INFINEON=y CONFIG_TCG_XEN=y # CONFIG_TCG_CRB is not set CONFIG_TCG_VTPM_PROXY=y CONFIG_TCG_TIS_ST33ZP24=m CONFIG_TCG_TIS_ST33ZP24_I2C=m CONFIG_TELCLOCK=y CONFIG_XILLYBUS_CLASS=m CONFIG_XILLYBUS=m CONFIG_XILLYBUS_OF=m # CONFIG_RANDOM_TRUST_CPU is not set CONFIG_RANDOM_TRUST_BOOTLOADER=y # end of Character devices # # I2C support # CONFIG_I2C=y # CONFIG_ACPI_I2C_OPREGION is not set CONFIG_I2C_BOARDINFO=y # CONFIG_I2C_COMPAT is not set CONFIG_I2C_CHARDEV=m CONFIG_I2C_MUX=m # # Multiplexer I2C Chip support # CONFIG_I2C_ARB_GPIO_CHALLENGE=m CONFIG_I2C_MUX_GPIO=m # CONFIG_I2C_MUX_GPMUX is not set CONFIG_I2C_MUX_LTC4306=m # CONFIG_I2C_MUX_PCA9541 is not set CONFIG_I2C_MUX_PCA954x=m CONFIG_I2C_MUX_PINCTRL=m CONFIG_I2C_MUX_REG=m CONFIG_I2C_DEMUX_PINCTRL=m CONFIG_I2C_MUX_MLXCPLD=m # end of Multiplexer I2C Chip support CONFIG_I2C_HELPER_AUTO=y CONFIG_I2C_SMBUS=m CONFIG_I2C_ALGOBIT=m # # I2C Hardware Bus support # # # PC SMBus host controller drivers # # CONFIG_I2C_ALI1535 is not set # CONFIG_I2C_ALI1563 is not set # CONFIG_I2C_ALI15X3 is not set # CONFIG_I2C_AMD756 is not set # CONFIG_I2C_AMD8111 is not set # CONFIG_I2C_AMD_MP2 is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_ISCH is not set # CONFIG_I2C_ISMT is not set # CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_NVIDIA_GPU is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set # # ACPI drivers # CONFIG_I2C_SCMI=y # # I2C system bus drivers (mostly embedded / system-on-chip) # # CONFIG_I2C_CBUS_GPIO is not set # CONFIG_I2C_DESIGNWARE_PLATFORM is not set # CONFIG_I2C_DESIGNWARE_PCI is not set CONFIG_I2C_EMEV2=m CONFIG_I2C_GPIO=m CONFIG_I2C_GPIO_FAULT_INJECTOR=y CONFIG_I2C_KEMPLD=m # CONFIG_I2C_OCORES is not set # CONFIG_I2C_PCA_PLATFORM is not set CONFIG_I2C_RK3X=y # CONFIG_I2C_SIMTEC is not set CONFIG_I2C_XILINX=y # # External I2C/SMBus adapter drivers # # CONFIG_I2C_PARPORT is not set # CONFIG_I2C_TAOS_EVM is not set # # Other I2C/SMBus bus drivers # # CONFIG_I2C_MLXCPLD is not set CONFIG_I2C_FSI=m CONFIG_I2C_VIRTIO=m # end of I2C Hardware Bus support CONFIG_I2C_STUB=m CONFIG_I2C_SLAVE=y # CONFIG_I2C_SLAVE_EEPROM is not set CONFIG_I2C_SLAVE_TESTUNIT=m # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # end of I2C support CONFIG_I3C=m # CONFIG_CDNS_I3C_MASTER is not set # CONFIG_DW_I3C_MASTER is not set CONFIG_SVC_I3C_MASTER=m CONFIG_MIPI_I3C_HCI=m # CONFIG_SPI is not set CONFIG_SPMI=y CONFIG_SPMI_HISI3670=y # CONFIG_HSI is not set CONFIG_PPS=y # CONFIG_PPS_DEBUG is not set # # PPS clients support # CONFIG_PPS_CLIENT_KTIMER=y # CONFIG_PPS_CLIENT_LDISC is not set CONFIG_PPS_CLIENT_PARPORT=m CONFIG_PPS_CLIENT_GPIO=y # # PPS generators support # # # PTP clock support # CONFIG_PTP_1588_CLOCK_OPTIONAL=y # # Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks. # # end of PTP clock support CONFIG_PINCTRL=y CONFIG_GENERIC_PINCTRL_GROUPS=y CONFIG_PINMUX=y CONFIG_GENERIC_PINMUX_FUNCTIONS=y CONFIG_PINCONF=y CONFIG_GENERIC_PINCONF=y CONFIG_DEBUG_PINCTRL=y # CONFIG_PINCTRL_AMD is not set CONFIG_PINCTRL_AS3722=m CONFIG_PINCTRL_EQUILIBRIUM=y # CONFIG_PINCTRL_MAX77620 is not set # CONFIG_PINCTRL_MCP23S08 is not set CONFIG_PINCTRL_MICROCHIP_SGPIO=y CONFIG_PINCTRL_OCELOT=y CONFIG_PINCTRL_PALMAS=m # CONFIG_PINCTRL_SINGLE is not set # CONFIG_PINCTRL_STMFX is not set # CONFIG_PINCTRL_SX150X is not set # # Intel pinctrl drivers # # CONFIG_PINCTRL_BAYTRAIL is not set # CONFIG_PINCTRL_CHERRYVIEW is not set CONFIG_PINCTRL_LYNXPOINT=m CONFIG_PINCTRL_INTEL=y # CONFIG_PINCTRL_ALDERLAKE is not set # CONFIG_PINCTRL_BROXTON is not set CONFIG_PINCTRL_CANNONLAKE=y # CONFIG_PINCTRL_CEDARFORK is not set CONFIG_PINCTRL_DENVERTON=y CONFIG_PINCTRL_ELKHARTLAKE=m CONFIG_PINCTRL_EMMITSBURG=y CONFIG_PINCTRL_GEMINILAKE=m CONFIG_PINCTRL_ICELAKE=y CONFIG_PINCTRL_JASPERLAKE=m CONFIG_PINCTRL_LAKEFIELD=y CONFIG_PINCTRL_LEWISBURG=m CONFIG_PINCTRL_SUNRISEPOINT=y CONFIG_PINCTRL_TIGERLAKE=y # end of Intel pinctrl drivers # # Renesas pinctrl drivers # # end of Renesas pinctrl drivers CONFIG_GPIOLIB=y CONFIG_GPIOLIB_FASTPATH_LIMIT=512 CONFIG_OF_GPIO=y CONFIG_GPIO_ACPI=y CONFIG_GPIOLIB_IRQCHIP=y CONFIG_DEBUG_GPIO=y # CONFIG_GPIO_SYSFS is not set # CONFIG_GPIO_CDEV is not set CONFIG_GPIO_GENERIC=y CONFIG_GPIO_MAX730X=m # # Memory mapped GPIO drivers # CONFIG_GPIO_74XX_MMIO=m CONFIG_GPIO_ALTERA=y # CONFIG_GPIO_AMDPT is not set CONFIG_GPIO_CADENCE=m CONFIG_GPIO_DWAPB=y # CONFIG_GPIO_EXAR is not set CONFIG_GPIO_FTGPIO010=y CONFIG_GPIO_GENERIC_PLATFORM=y # CONFIG_GPIO_GRGPIO is not set # CONFIG_GPIO_HLWD is not set CONFIG_GPIO_LOGICVC=m CONFIG_GPIO_MB86S7X=y CONFIG_GPIO_MENZ127=m CONFIG_GPIO_SAMA5D2_PIOBU=y # CONFIG_GPIO_SIFIVE is not set # CONFIG_GPIO_SIOX is not set CONFIG_GPIO_SYSCON=y # CONFIG_GPIO_VX855 is not set CONFIG_GPIO_XILINX=y CONFIG_GPIO_AMD_FCH=y # end of Memory mapped GPIO drivers # # Port-mapped I/O GPIO drivers # CONFIG_GPIO_104_DIO_48E=m CONFIG_GPIO_104_IDIO_16=m # CONFIG_GPIO_104_IDI_48 is not set CONFIG_GPIO_F7188X=m # CONFIG_GPIO_GPIO_MM is not set # CONFIG_GPIO_IT87 is not set CONFIG_GPIO_SCH311X=y CONFIG_GPIO_WINBOND=y CONFIG_GPIO_WS16C48=m # end of Port-mapped I/O GPIO drivers # # I2C GPIO expanders # # CONFIG_GPIO_ADP5588 is not set # CONFIG_GPIO_ADNP is not set CONFIG_GPIO_GW_PLD=y CONFIG_GPIO_MAX7300=m CONFIG_GPIO_MAX732X=y # CONFIG_GPIO_MAX732X_IRQ is not set # CONFIG_GPIO_PCA953X is not set CONFIG_GPIO_PCA9570=y CONFIG_GPIO_PCF857X=m # CONFIG_GPIO_TPIC2810 is not set # end of I2C GPIO expanders # # MFD GPIO expanders # CONFIG_GPIO_BD71815=m # CONFIG_GPIO_BD71828 is not set CONFIG_GPIO_BD9571MWV=m CONFIG_GPIO_DA9052=y # CONFIG_GPIO_DA9055 is not set CONFIG_GPIO_KEMPLD=m CONFIG_GPIO_LP873X=m # CONFIG_GPIO_MAX77620 is not set # CONFIG_GPIO_PALMAS is not set # CONFIG_GPIO_TPS65086 is not set # CONFIG_GPIO_TPS65218 is not set # CONFIG_GPIO_TPS6586X is not set CONFIG_GPIO_TPS65910=y CONFIG_GPIO_TQMX86=m CONFIG_GPIO_TWL4030=m CONFIG_GPIO_TWL6040=y CONFIG_GPIO_WM8350=y # CONFIG_GPIO_WM8994 is not set # end of MFD GPIO expanders # # PCI GPIO expanders # # CONFIG_GPIO_AMD8111 is not set # CONFIG_GPIO_BT8XX is not set # CONFIG_GPIO_ML_IOH is not set # CONFIG_GPIO_PCI_IDIO_16 is not set # CONFIG_GPIO_PCIE_IDIO_24 is not set # CONFIG_GPIO_RDC321X is not set # CONFIG_GPIO_SODAVILLE is not set # end of PCI GPIO expanders # # Virtual GPIO drivers # # CONFIG_GPIO_AGGREGATOR is not set CONFIG_GPIO_MOCKUP=m CONFIG_GPIO_VIRTIO=m # CONFIG_GPIO_SIM is not set # end of Virtual GPIO drivers CONFIG_W1=y # # 1-wire Bus Masters # # CONFIG_W1_MASTER_MATROX is not set CONFIG_W1_MASTER_DS2482=y # CONFIG_W1_MASTER_DS1WM is not set CONFIG_W1_MASTER_GPIO=m CONFIG_W1_MASTER_SGI=y # end of 1-wire Bus Masters # # 1-wire Slaves # # CONFIG_W1_SLAVE_THERM is not set CONFIG_W1_SLAVE_SMEM=m CONFIG_W1_SLAVE_DS2405=m # CONFIG_W1_SLAVE_DS2408 is not set # CONFIG_W1_SLAVE_DS2413 is not set # CONFIG_W1_SLAVE_DS2406 is not set # CONFIG_W1_SLAVE_DS2423 is not set CONFIG_W1_SLAVE_DS2805=y # CONFIG_W1_SLAVE_DS2430 is not set CONFIG_W1_SLAVE_DS2431=y CONFIG_W1_SLAVE_DS2433=m # CONFIG_W1_SLAVE_DS2433_CRC is not set # CONFIG_W1_SLAVE_DS2438 is not set CONFIG_W1_SLAVE_DS250X=y CONFIG_W1_SLAVE_DS2780=y # CONFIG_W1_SLAVE_DS2781 is not set CONFIG_W1_SLAVE_DS28E04=m # CONFIG_W1_SLAVE_DS28E17 is not set # end of 1-wire Slaves CONFIG_POWER_RESET=y CONFIG_POWER_RESET_AS3722=y # CONFIG_POWER_RESET_GPIO is not set CONFIG_POWER_RESET_GPIO_RESTART=y CONFIG_POWER_RESET_LTC2952=y # CONFIG_POWER_RESET_MT6323 is not set # CONFIG_POWER_RESET_REGULATOR is not set # CONFIG_POWER_RESET_RESTART is not set # CONFIG_POWER_RESET_TPS65086 is not set CONFIG_POWER_RESET_SYSCON=y # CONFIG_POWER_RESET_SYSCON_POWEROFF is not set CONFIG_REBOOT_MODE=y CONFIG_SYSCON_REBOOT_MODE=y CONFIG_NVMEM_REBOOT_MODE=m CONFIG_POWER_SUPPLY=y # CONFIG_POWER_SUPPLY_DEBUG is not set # CONFIG_POWER_SUPPLY_HWMON is not set CONFIG_PDA_POWER=m # CONFIG_IP5XXX_POWER is not set # CONFIG_WM8350_POWER is not set # CONFIG_TEST_POWER is not set # CONFIG_BATTERY_88PM860X is not set CONFIG_CHARGER_ADP5061=y CONFIG_BATTERY_CW2015=y CONFIG_BATTERY_DS2760=y CONFIG_BATTERY_DS2780=y # CONFIG_BATTERY_DS2781 is not set CONFIG_BATTERY_DS2782=m # CONFIG_BATTERY_SAMSUNG_SDI is not set # CONFIG_BATTERY_SBS is not set CONFIG_CHARGER_SBS=m CONFIG_MANAGER_SBS=m CONFIG_BATTERY_BQ27XXX=m # CONFIG_BATTERY_BQ27XXX_I2C is not set # CONFIG_BATTERY_BQ27XXX_HDQ is not set # CONFIG_BATTERY_DA9052 is not set CONFIG_BATTERY_DA9150=m # CONFIG_BATTERY_MAX17040 is not set CONFIG_BATTERY_MAX17042=y CONFIG_BATTERY_MAX1721X=m # CONFIG_CHARGER_PCF50633 is not set CONFIG_CHARGER_MAX8903=m CONFIG_CHARGER_LP8727=y # CONFIG_CHARGER_GPIO is not set CONFIG_CHARGER_MANAGER=m CONFIG_CHARGER_LT3651=y CONFIG_CHARGER_LTC4162L=m # CONFIG_CHARGER_MAX14577 is not set CONFIG_CHARGER_DETECTOR_MAX14656=m CONFIG_CHARGER_MAX77693=m # CONFIG_CHARGER_MAX77976 is not set # CONFIG_CHARGER_MT6360 is not set CONFIG_CHARGER_BQ2415X=y CONFIG_CHARGER_BQ24190=m CONFIG_CHARGER_BQ24257=m CONFIG_CHARGER_BQ24735=m CONFIG_CHARGER_BQ2515X=y CONFIG_CHARGER_BQ25890=m CONFIG_CHARGER_BQ25980=y CONFIG_CHARGER_BQ256XX=m CONFIG_CHARGER_SMB347=y CONFIG_BATTERY_GAUGE_LTC2941=y CONFIG_BATTERY_GOLDFISH=y CONFIG_BATTERY_RT5033=m CONFIG_CHARGER_RT9455=m CONFIG_CHARGER_UCS1002=y # CONFIG_CHARGER_BD99954 is not set # CONFIG_BATTERY_UG3105 is not set CONFIG_HWMON=y CONFIG_HWMON_VID=y # CONFIG_HWMON_DEBUG_CHIP is not set # # Native drivers # CONFIG_SENSORS_ABITUGURU=m CONFIG_SENSORS_ABITUGURU3=m CONFIG_SENSORS_AD7414=y CONFIG_SENSORS_AD7418=y # CONFIG_SENSORS_ADM1021 is not set CONFIG_SENSORS_ADM1025=m CONFIG_SENSORS_ADM1026=y CONFIG_SENSORS_ADM1029=m # CONFIG_SENSORS_ADM1031 is not set CONFIG_SENSORS_ADM1177=m # CONFIG_SENSORS_ADM9240 is not set # CONFIG_SENSORS_ADT7410 is not set CONFIG_SENSORS_ADT7411=y CONFIG_SENSORS_ADT7462=m # CONFIG_SENSORS_ADT7470 is not set CONFIG_SENSORS_ADT7475=y CONFIG_SENSORS_AHT10=y CONFIG_SENSORS_AS370=y # CONFIG_SENSORS_ASC7621 is not set CONFIG_SENSORS_AXI_FAN_CONTROL=y # CONFIG_SENSORS_K8TEMP is not set # CONFIG_SENSORS_K10TEMP is not set # CONFIG_SENSORS_FAM15H_POWER is not set CONFIG_SENSORS_APPLESMC=m # CONFIG_SENSORS_ASB100 is not set CONFIG_SENSORS_ASPEED=m CONFIG_SENSORS_ATXP1=y # CONFIG_SENSORS_CORSAIR_CPRO is not set CONFIG_SENSORS_CORSAIR_PSU=y # CONFIG_SENSORS_DS620 is not set CONFIG_SENSORS_DS1621=m CONFIG_SENSORS_DELL_SMM=m # CONFIG_I8K is not set # CONFIG_SENSORS_DA9052_ADC is not set CONFIG_SENSORS_DA9055=y # CONFIG_SENSORS_I5K_AMB is not set # CONFIG_SENSORS_F71805F is not set # CONFIG_SENSORS_F71882FG is not set CONFIG_SENSORS_F75375S=y CONFIG_SENSORS_GSC=m CONFIG_SENSORS_FSCHMD=m CONFIG_SENSORS_FTSTEUTATES=m CONFIG_SENSORS_GL518SM=y CONFIG_SENSORS_GL520SM=y # CONFIG_SENSORS_G760A is not set CONFIG_SENSORS_G762=y # CONFIG_SENSORS_GPIO_FAN is not set # CONFIG_SENSORS_HIH6130 is not set CONFIG_SENSORS_IBMAEM=y CONFIG_SENSORS_IBMPEX=m # CONFIG_SENSORS_I5500 is not set CONFIG_SENSORS_CORETEMP=y # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_JC42 is not set # CONFIG_SENSORS_POWR1220 is not set # CONFIG_SENSORS_LINEAGE is not set # CONFIG_SENSORS_LTC2945 is not set CONFIG_SENSORS_LTC2947=m CONFIG_SENSORS_LTC2947_I2C=m CONFIG_SENSORS_LTC2990=y CONFIG_SENSORS_LTC2992=m # CONFIG_SENSORS_LTC4151 is not set CONFIG_SENSORS_LTC4215=m CONFIG_SENSORS_LTC4222=y CONFIG_SENSORS_LTC4245=m CONFIG_SENSORS_LTC4260=y CONFIG_SENSORS_LTC4261=y # CONFIG_SENSORS_MAX127 is not set # CONFIG_SENSORS_MAX16065 is not set CONFIG_SENSORS_MAX1619=y CONFIG_SENSORS_MAX1668=m # CONFIG_SENSORS_MAX197 is not set # CONFIG_SENSORS_MAX31730 is not set # CONFIG_SENSORS_MAX6620 is not set CONFIG_SENSORS_MAX6621=y # CONFIG_SENSORS_MAX6639 is not set CONFIG_SENSORS_MAX6642=m # CONFIG_SENSORS_MAX6650 is not set # CONFIG_SENSORS_MAX6697 is not set CONFIG_SENSORS_MAX31790=m CONFIG_SENSORS_MCP3021=m CONFIG_SENSORS_TC654=m CONFIG_SENSORS_TPS23861=m CONFIG_SENSORS_MR75203=y # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM73 is not set # CONFIG_SENSORS_LM75 is not set CONFIG_SENSORS_LM77=y CONFIG_SENSORS_LM78=y # CONFIG_SENSORS_LM80 is not set CONFIG_SENSORS_LM83=y CONFIG_SENSORS_LM85=y CONFIG_SENSORS_LM87=m CONFIG_SENSORS_LM90=m CONFIG_SENSORS_LM92=m CONFIG_SENSORS_LM93=m # CONFIG_SENSORS_LM95234 is not set CONFIG_SENSORS_LM95241=y # CONFIG_SENSORS_LM95245 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_NCT6683 is not set CONFIG_SENSORS_NCT6775_CORE=m CONFIG_SENSORS_NCT6775=m # CONFIG_SENSORS_NCT6775_I2C is not set CONFIG_SENSORS_NCT7802=m CONFIG_SENSORS_NCT7904=m CONFIG_SENSORS_NPCM7XX=m CONFIG_SENSORS_PCF8591=m CONFIG_PMBUS=y # CONFIG_SENSORS_PMBUS is not set CONFIG_SENSORS_ADM1266=y # CONFIG_SENSORS_ADM1275 is not set CONFIG_SENSORS_BEL_PFE=y CONFIG_SENSORS_BPA_RS600=m # CONFIG_SENSORS_DELTA_AHE50DC_FAN is not set CONFIG_SENSORS_FSP_3Y=y # CONFIG_SENSORS_IBM_CFFPS is not set CONFIG_SENSORS_DPS920AB=m # CONFIG_SENSORS_INSPUR_IPSPS is not set CONFIG_SENSORS_IR35221=y CONFIG_SENSORS_IR36021=m CONFIG_SENSORS_IR38064=y # CONFIG_SENSORS_IR38064_REGULATOR is not set CONFIG_SENSORS_IRPS5401=m CONFIG_SENSORS_ISL68137=y CONFIG_SENSORS_LM25066=y # CONFIG_SENSORS_LM25066_REGULATOR is not set CONFIG_SENSORS_LTC2978=m # CONFIG_SENSORS_LTC2978_REGULATOR is not set # CONFIG_SENSORS_LTC3815 is not set CONFIG_SENSORS_MAX15301=y CONFIG_SENSORS_MAX16064=m CONFIG_SENSORS_MAX16601=y CONFIG_SENSORS_MAX20730=y CONFIG_SENSORS_MAX20751=m # CONFIG_SENSORS_MAX31785 is not set CONFIG_SENSORS_MAX34440=y CONFIG_SENSORS_MAX8688=y CONFIG_SENSORS_MP2888=m CONFIG_SENSORS_MP2975=y # CONFIG_SENSORS_MP5023 is not set CONFIG_SENSORS_PIM4328=m # CONFIG_SENSORS_PLI1209BC is not set # CONFIG_SENSORS_PM6764TR is not set # CONFIG_SENSORS_PXE1610 is not set # CONFIG_SENSORS_Q54SJ108A2 is not set CONFIG_SENSORS_STPDDC60=y CONFIG_SENSORS_TPS40422=m CONFIG_SENSORS_TPS53679=y CONFIG_SENSORS_UCD9000=y # CONFIG_SENSORS_UCD9200 is not set # CONFIG_SENSORS_XDPE152 is not set CONFIG_SENSORS_XDPE122=m # CONFIG_SENSORS_XDPE122_REGULATOR is not set # CONFIG_SENSORS_ZL6100 is not set CONFIG_SENSORS_PWM_FAN=y CONFIG_SENSORS_SBTSI=y CONFIG_SENSORS_SBRMI=y # CONFIG_SENSORS_SHT15 is not set CONFIG_SENSORS_SHT21=m CONFIG_SENSORS_SHT3x=m # CONFIG_SENSORS_SHT4x is not set CONFIG_SENSORS_SHTC1=m # CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SY7636A is not set CONFIG_SENSORS_DME1737=y CONFIG_SENSORS_EMC1403=y CONFIG_SENSORS_EMC2103=y CONFIG_SENSORS_EMC6W201=m # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set CONFIG_SENSORS_SMSC47B397=y CONFIG_SENSORS_SCH56XX_COMMON=y CONFIG_SENSORS_SCH5627=y CONFIG_SENSORS_SCH5636=m # CONFIG_SENSORS_STTS751 is not set # CONFIG_SENSORS_SMM665 is not set # CONFIG_SENSORS_ADC128D818 is not set CONFIG_SENSORS_ADS7828=m CONFIG_SENSORS_AMC6821=y # CONFIG_SENSORS_INA209 is not set # CONFIG_SENSORS_INA2XX is not set # CONFIG_SENSORS_INA238 is not set # CONFIG_SENSORS_INA3221 is not set CONFIG_SENSORS_TC74=y # CONFIG_SENSORS_THMC50 is not set CONFIG_SENSORS_TMP102=m CONFIG_SENSORS_TMP103=y # CONFIG_SENSORS_TMP108 is not set CONFIG_SENSORS_TMP401=y CONFIG_SENSORS_TMP421=y # CONFIG_SENSORS_TMP464 is not set CONFIG_SENSORS_TMP513=y CONFIG_SENSORS_VIA_CPUTEMP=y # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set CONFIG_SENSORS_W83773G=m CONFIG_SENSORS_W83781D=y CONFIG_SENSORS_W83791D=m CONFIG_SENSORS_W83792D=y CONFIG_SENSORS_W83793=m CONFIG_SENSORS_W83795=y CONFIG_SENSORS_W83795_FANCTRL=y # CONFIG_SENSORS_W83L785TS is not set CONFIG_SENSORS_W83L786NG=y # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_SENSORS_WM8350 is not set # CONFIG_SENSORS_XGENE is not set # # ACPI drivers # CONFIG_SENSORS_ACPI_POWER=m # CONFIG_SENSORS_ATK0110 is not set # CONFIG_SENSORS_ASUS_EC is not set CONFIG_THERMAL=y # CONFIG_THERMAL_NETLINK is not set CONFIG_THERMAL_STATISTICS=y CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0 CONFIG_THERMAL_HWMON=y # CONFIG_THERMAL_OF is not set CONFIG_THERMAL_WRITABLE_TRIPS=y CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y # CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set # CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set # CONFIG_THERMAL_GOV_FAIR_SHARE is not set CONFIG_THERMAL_GOV_STEP_WISE=y CONFIG_THERMAL_GOV_BANG_BANG=y CONFIG_THERMAL_GOV_USER_SPACE=y CONFIG_DEVFREQ_THERMAL=y CONFIG_THERMAL_EMULATION=y CONFIG_THERMAL_MMIO=y CONFIG_MAX77620_THERMAL=m # # Intel thermal drivers # # CONFIG_INTEL_POWERCLAMP is not set CONFIG_X86_THERMAL_VECTOR=y CONFIG_X86_PKG_TEMP_THERMAL=y # CONFIG_INTEL_SOC_DTS_THERMAL is not set # # ACPI INT340X thermal drivers # # CONFIG_INT340X_THERMAL is not set # end of ACPI INT340X thermal drivers # CONFIG_INTEL_PCH_THERMAL is not set CONFIG_INTEL_TCC_COOLING=y CONFIG_INTEL_MENLOW=y # CONFIG_INTEL_HFI_THERMAL is not set # end of Intel thermal drivers CONFIG_WATCHDOG=y CONFIG_WATCHDOG_CORE=y CONFIG_WATCHDOG_NOWAYOUT=y # CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED is not set CONFIG_WATCHDOG_OPEN_TIMEOUT=0 # CONFIG_WATCHDOG_SYSFS is not set # CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set # # Watchdog Pretimeout Governors # CONFIG_WATCHDOG_PRETIMEOUT_GOV=y CONFIG_WATCHDOG_PRETIMEOUT_GOV_SEL=m # CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP is not set CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=m CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC=y # # Watchdog Device Drivers # CONFIG_SOFT_WATCHDOG=y # CONFIG_SOFT_WATCHDOG_PRETIMEOUT is not set # CONFIG_DA9052_WATCHDOG is not set # CONFIG_DA9055_WATCHDOG is not set CONFIG_GPIO_WATCHDOG=y CONFIG_GPIO_WATCHDOG_ARCH_INITCALL=y CONFIG_MENZ069_WATCHDOG=m # CONFIG_WDAT_WDT is not set CONFIG_WM8350_WATCHDOG=m CONFIG_XILINX_WATCHDOG=m CONFIG_ZIIRAVE_WATCHDOG=m CONFIG_RAVE_SP_WATCHDOG=y # CONFIG_CADENCE_WATCHDOG is not set CONFIG_DW_WATCHDOG=m # CONFIG_TWL4030_WATCHDOG is not set CONFIG_MAX63XX_WATCHDOG=m # CONFIG_MAX77620_WATCHDOG is not set # CONFIG_STPMIC1_WATCHDOG is not set # CONFIG_ACQUIRE_WDT is not set CONFIG_ADVANTECH_WDT=m # CONFIG_ALIM1535_WDT is not set # CONFIG_ALIM7101_WDT is not set # CONFIG_EBC_C384_WDT is not set CONFIG_F71808E_WDT=m # CONFIG_SP5100_TCO is not set # CONFIG_SBC_FITPC2_WATCHDOG is not set # CONFIG_EUROTECH_WDT is not set # CONFIG_IB700_WDT is not set # CONFIG_IBMASR is not set CONFIG_WAFER_WDT=m # CONFIG_I6300ESB_WDT is not set # CONFIG_IE6XX_WDT is not set # CONFIG_ITCO_WDT is not set CONFIG_IT8712F_WDT=y CONFIG_IT87_WDT=m # CONFIG_HP_WATCHDOG is not set # CONFIG_KEMPLD_WDT is not set CONFIG_SC1200_WDT=m CONFIG_PC87413_WDT=m # CONFIG_NV_TCO is not set # CONFIG_60XX_WDT is not set CONFIG_CPU5_WDT=y CONFIG_SMSC_SCH311X_WDT=y # CONFIG_SMSC37B787_WDT is not set CONFIG_TQMX86_WDT=m # CONFIG_VIA_WDT is not set CONFIG_W83627HF_WDT=y CONFIG_W83877F_WDT=y CONFIG_W83977F_WDT=y CONFIG_MACHZ_WDT=y CONFIG_SBC_EPX_C3_WATCHDOG=y # CONFIG_NI903X_WDT is not set CONFIG_NIC7018_WDT=y # CONFIG_MEN_A21_WDT is not set CONFIG_XEN_WDT=m # # PCI-based Watchdog Cards # # CONFIG_PCIPCWATCHDOG is not set # CONFIG_WDTPCI is not set CONFIG_SSB_POSSIBLE=y CONFIG_SSB=m CONFIG_SSB_SPROM=y CONFIG_SSB_PCIHOST_POSSIBLE=y CONFIG_SSB_PCIHOST=y CONFIG_SSB_PCMCIAHOST_POSSIBLE=y # CONFIG_SSB_PCMCIAHOST is not set CONFIG_SSB_SDIOHOST_POSSIBLE=y CONFIG_SSB_SDIOHOST=y CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y # CONFIG_SSB_DRIVER_PCICORE is not set CONFIG_SSB_DRIVER_GPIO=y CONFIG_BCMA_POSSIBLE=y CONFIG_BCMA=m CONFIG_BCMA_HOST_PCI_POSSIBLE=y CONFIG_BCMA_HOST_PCI=y CONFIG_BCMA_HOST_SOC=y CONFIG_BCMA_DRIVER_PCI=y # CONFIG_BCMA_SFLASH is not set # CONFIG_BCMA_DRIVER_GMAC_CMN is not set # CONFIG_BCMA_DRIVER_GPIO is not set CONFIG_BCMA_DEBUG=y # # Multifunction device drivers # CONFIG_MFD_CORE=y # CONFIG_MFD_ACT8945A is not set # CONFIG_MFD_AS3711 is not set CONFIG_MFD_AS3722=m # CONFIG_PMIC_ADP5520 is not set # CONFIG_MFD_AAT2870_CORE is not set # CONFIG_MFD_ATMEL_FLEXCOM is not set CONFIG_MFD_ATMEL_HLCDC=y # CONFIG_MFD_BCM590XX is not set CONFIG_MFD_BD9571MWV=m # CONFIG_MFD_AXP20X_I2C is not set # CONFIG_MFD_MADERA is not set # CONFIG_PMIC_DA903X is not set CONFIG_PMIC_DA9052=y CONFIG_MFD_DA9052_I2C=y CONFIG_MFD_DA9055=y # CONFIG_MFD_DA9062 is not set # CONFIG_MFD_DA9063 is not set CONFIG_MFD_DA9150=m CONFIG_MFD_GATEWORKS_GSC=y # CONFIG_MFD_MC13XXX_I2C is not set CONFIG_MFD_MP2629=y # CONFIG_MFD_HI6421_PMIC is not set # CONFIG_MFD_HI6421_SPMI is not set CONFIG_HTC_PASIC3=y # CONFIG_HTC_I2CPLD is not set # CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set # CONFIG_LPC_ICH is not set # CONFIG_LPC_SCH is not set # CONFIG_INTEL_SOC_PMIC_BXTWC is not set # CONFIG_MFD_INTEL_LPSS_ACPI is not set # CONFIG_MFD_INTEL_LPSS_PCI is not set CONFIG_MFD_INTEL_PMC_BXT=y CONFIG_MFD_IQS62X=y # CONFIG_MFD_JANZ_CMODIO is not set CONFIG_MFD_KEMPLD=m # CONFIG_MFD_88PM800 is not set # CONFIG_MFD_88PM805 is not set CONFIG_MFD_88PM860X=y CONFIG_MFD_MAX14577=y CONFIG_MFD_MAX77620=y # CONFIG_MFD_MAX77650 is not set CONFIG_MFD_MAX77686=y CONFIG_MFD_MAX77693=m # CONFIG_MFD_MAX77714 is not set # CONFIG_MFD_MAX77843 is not set CONFIG_MFD_MAX8907=m # CONFIG_MFD_MAX8925 is not set # CONFIG_MFD_MAX8997 is not set # CONFIG_MFD_MAX8998 is not set CONFIG_MFD_MT6360=m CONFIG_MFD_MT6397=m # CONFIG_MFD_MENF21BMC is not set CONFIG_MFD_NTXEC=m # CONFIG_MFD_RETU is not set CONFIG_MFD_PCF50633=m # CONFIG_PCF50633_ADC is not set CONFIG_PCF50633_GPIO=m # CONFIG_MFD_RDC321X is not set CONFIG_MFD_RT4831=m CONFIG_MFD_RT5033=y # CONFIG_MFD_RC5T583 is not set # CONFIG_MFD_RK808 is not set # CONFIG_MFD_RN5T618 is not set CONFIG_MFD_SEC_CORE=y CONFIG_MFD_SI476X_CORE=y # CONFIG_MFD_SIMPLE_MFD_I2C is not set CONFIG_MFD_SM501=y # CONFIG_MFD_SM501_GPIO is not set CONFIG_MFD_SKY81452=m # CONFIG_MFD_STMPE is not set CONFIG_MFD_SYSCON=y CONFIG_MFD_TI_AM335X_TSCADC=y # CONFIG_MFD_LP3943 is not set CONFIG_MFD_LP8788=y CONFIG_MFD_TI_LMU=y CONFIG_MFD_PALMAS=y CONFIG_TPS6105X=y # CONFIG_TPS65010 is not set CONFIG_TPS6507X=y CONFIG_MFD_TPS65086=m # CONFIG_MFD_TPS65090 is not set # CONFIG_MFD_TPS65217 is not set CONFIG_MFD_TI_LP873X=m # CONFIG_MFD_TI_LP87565 is not set CONFIG_MFD_TPS65218=y CONFIG_MFD_TPS6586X=y CONFIG_MFD_TPS65910=y # CONFIG_MFD_TPS65912_I2C is not set CONFIG_TWL4030_CORE=y CONFIG_MFD_TWL4030_AUDIO=y CONFIG_TWL6040_CORE=y CONFIG_MFD_WL1273_CORE=m CONFIG_MFD_LM3533=m # CONFIG_MFD_TC3589X is not set CONFIG_MFD_TQMX86=m # CONFIG_MFD_VX855 is not set # CONFIG_MFD_LOCHNAGAR is not set # CONFIG_MFD_ARIZONA_I2C is not set # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM831X_I2C is not set CONFIG_MFD_WM8350=y CONFIG_MFD_WM8350_I2C=y CONFIG_MFD_WM8994=m # CONFIG_MFD_ROHM_BD718XX is not set CONFIG_MFD_ROHM_BD71828=y # CONFIG_MFD_ROHM_BD957XMUF is not set CONFIG_MFD_STPMIC1=m CONFIG_MFD_STMFX=y # CONFIG_MFD_ATC260X_I2C is not set CONFIG_MFD_QCOM_PM8008=y CONFIG_RAVE_SP_CORE=y CONFIG_MFD_RSMU_I2C=y # end of Multifunction device drivers CONFIG_REGULATOR=y # CONFIG_REGULATOR_DEBUG is not set CONFIG_REGULATOR_FIXED_VOLTAGE=y # CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set # CONFIG_REGULATOR_USERSPACE_CONSUMER is not set CONFIG_REGULATOR_88PG86X=y CONFIG_REGULATOR_88PM8607=m CONFIG_REGULATOR_ACT8865=y # CONFIG_REGULATOR_AD5398 is not set CONFIG_REGULATOR_AS3722=m # CONFIG_REGULATOR_BD71815 is not set # CONFIG_REGULATOR_BD71828 is not set # CONFIG_REGULATOR_BD9571MWV is not set # CONFIG_REGULATOR_DA9052 is not set CONFIG_REGULATOR_DA9055=y CONFIG_REGULATOR_DA9121=y CONFIG_REGULATOR_DA9210=y # CONFIG_REGULATOR_DA9211 is not set CONFIG_REGULATOR_FAN53555=m CONFIG_REGULATOR_FAN53880=m # CONFIG_REGULATOR_GPIO is not set # CONFIG_REGULATOR_ISL9305 is not set CONFIG_REGULATOR_ISL6271A=m # CONFIG_REGULATOR_LM363X is not set CONFIG_REGULATOR_LP3971=y CONFIG_REGULATOR_LP3972=y # CONFIG_REGULATOR_LP872X is not set CONFIG_REGULATOR_LP873X=m CONFIG_REGULATOR_LP8755=y CONFIG_REGULATOR_LP8788=m # CONFIG_REGULATOR_LTC3589 is not set CONFIG_REGULATOR_LTC3676=m CONFIG_REGULATOR_MAX14577=m CONFIG_REGULATOR_MAX1586=y CONFIG_REGULATOR_MAX77620=y CONFIG_REGULATOR_MAX8649=m # CONFIG_REGULATOR_MAX8660 is not set # CONFIG_REGULATOR_MAX8893 is not set CONFIG_REGULATOR_MAX8907=m CONFIG_REGULATOR_MAX8952=m # CONFIG_REGULATOR_MAX20086 is not set # CONFIG_REGULATOR_MAX77686 is not set CONFIG_REGULATOR_MAX77693=m CONFIG_REGULATOR_MAX77802=m CONFIG_REGULATOR_MAX77826=y # CONFIG_REGULATOR_MCP16502 is not set CONFIG_REGULATOR_MP5416=m CONFIG_REGULATOR_MP8859=y # CONFIG_REGULATOR_MP886X is not set # CONFIG_REGULATOR_MPQ7920 is not set CONFIG_REGULATOR_MT6311=m CONFIG_REGULATOR_MT6315=y CONFIG_REGULATOR_MT6323=m CONFIG_REGULATOR_MT6358=m CONFIG_REGULATOR_MT6359=m CONFIG_REGULATOR_MT6360=m CONFIG_REGULATOR_MT6397=m CONFIG_REGULATOR_PALMAS=m CONFIG_REGULATOR_PCA9450=y CONFIG_REGULATOR_PCF50633=m # CONFIG_REGULATOR_PF8X00 is not set CONFIG_REGULATOR_PFUZE100=m # CONFIG_REGULATOR_PV88060 is not set CONFIG_REGULATOR_PV88080=m CONFIG_REGULATOR_PV88090=m CONFIG_REGULATOR_PWM=y CONFIG_REGULATOR_QCOM_SPMI=y CONFIG_REGULATOR_QCOM_USB_VBUS=m # CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY is not set CONFIG_REGULATOR_RT4801=y CONFIG_REGULATOR_RT4831=m CONFIG_REGULATOR_RT5033=y # CONFIG_REGULATOR_RT5190A is not set # CONFIG_REGULATOR_RT5759 is not set CONFIG_REGULATOR_RT6160=y # CONFIG_REGULATOR_RT6245 is not set CONFIG_REGULATOR_RTQ2134=m CONFIG_REGULATOR_RTMV20=y CONFIG_REGULATOR_RTQ6752=m CONFIG_REGULATOR_S2MPA01=m CONFIG_REGULATOR_S2MPS11=m CONFIG_REGULATOR_S5M8767=m CONFIG_REGULATOR_SKY81452=m CONFIG_REGULATOR_SLG51000=m # CONFIG_REGULATOR_STPMIC1 is not set # CONFIG_REGULATOR_SY7636A is not set CONFIG_REGULATOR_SY8106A=y # CONFIG_REGULATOR_SY8824X is not set # CONFIG_REGULATOR_SY8827N is not set # CONFIG_REGULATOR_TPS51632 is not set CONFIG_REGULATOR_TPS6105X=y # CONFIG_REGULATOR_TPS62360 is not set # CONFIG_REGULATOR_TPS6286X is not set CONFIG_REGULATOR_TPS65023=m # CONFIG_REGULATOR_TPS6507X is not set # CONFIG_REGULATOR_TPS65086 is not set CONFIG_REGULATOR_TPS65132=m CONFIG_REGULATOR_TPS65218=y # CONFIG_REGULATOR_TPS6586X is not set CONFIG_REGULATOR_TPS65910=m CONFIG_REGULATOR_TWL4030=y # CONFIG_REGULATOR_VCTRL is not set CONFIG_REGULATOR_WM8350=m CONFIG_REGULATOR_WM8994=m # CONFIG_REGULATOR_QCOM_LABIBB is not set # CONFIG_RC_CORE is not set # # CEC support # # CONFIG_MEDIA_CEC_SUPPORT is not set # end of CEC support # CONFIG_MEDIA_SUPPORT is not set # # Graphics support # # CONFIG_AGP is not set # CONFIG_VGA_SWITCHEROO is not set # CONFIG_DRM is not set # CONFIG_DRM_DEBUG_MODESET_LOCK is not set # # ARM devices # # end of ARM devices # # Frame buffer Devices # # CONFIG_FB is not set # end of Frame buffer Devices # # Backlight & LCD device support # CONFIG_LCD_CLASS_DEVICE=m # CONFIG_LCD_PLATFORM is not set CONFIG_BACKLIGHT_CLASS_DEVICE=y CONFIG_BACKLIGHT_KTD253=y CONFIG_BACKLIGHT_LM3533=m CONFIG_BACKLIGHT_PWM=m # CONFIG_BACKLIGHT_DA9052 is not set # CONFIG_BACKLIGHT_APPLE is not set CONFIG_BACKLIGHT_QCOM_WLED=y CONFIG_BACKLIGHT_RT4831=m # CONFIG_BACKLIGHT_SAHARA is not set CONFIG_BACKLIGHT_ADP8860=y # CONFIG_BACKLIGHT_ADP8870 is not set # CONFIG_BACKLIGHT_88PM860X is not set # CONFIG_BACKLIGHT_PCF50633 is not set CONFIG_BACKLIGHT_LM3630A=y # CONFIG_BACKLIGHT_LM3639 is not set CONFIG_BACKLIGHT_LP855X=y CONFIG_BACKLIGHT_LP8788=m # CONFIG_BACKLIGHT_PANDORA is not set # CONFIG_BACKLIGHT_SKY81452 is not set CONFIG_BACKLIGHT_GPIO=m CONFIG_BACKLIGHT_LV5207LP=y CONFIG_BACKLIGHT_BD6107=y # CONFIG_BACKLIGHT_ARCXCNN is not set CONFIG_BACKLIGHT_RAVE_SP=y CONFIG_BACKLIGHT_LED=m # end of Backlight & LCD device support # end of Graphics support # CONFIG_SOUND is not set # # HID support # CONFIG_HID=y # CONFIG_HID_BATTERY_STRENGTH is not set CONFIG_HIDRAW=y # CONFIG_UHID is not set CONFIG_HID_GENERIC=y # # Special HID drivers # CONFIG_HID_A4TECH=y CONFIG_HID_ACRUX=y CONFIG_HID_ACRUX_FF=y # CONFIG_HID_APPLE is not set CONFIG_HID_AUREAL=m # CONFIG_HID_BELKIN is not set CONFIG_HID_CHERRY=y CONFIG_HID_COUGAR=y CONFIG_HID_MACALLY=m CONFIG_HID_CMEDIA=m # CONFIG_HID_CYPRESS is not set # CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EMS_FF=m CONFIG_HID_ELECOM=y CONFIG_HID_EZKEY=m CONFIG_HID_GEMBIRD=m # CONFIG_HID_GFRM is not set # CONFIG_HID_GLORIOUS is not set # CONFIG_HID_VIVALDI is not set # CONFIG_HID_KEYTOUCH is not set CONFIG_HID_KYE=y # CONFIG_HID_WALTOP is not set CONFIG_HID_VIEWSONIC=y # CONFIG_HID_XIAOMI is not set CONFIG_HID_GYRATION=m CONFIG_HID_ICADE=y # CONFIG_HID_ITE is not set # CONFIG_HID_JABRA is not set # CONFIG_HID_TWINHAN is not set CONFIG_HID_KENSINGTON=m # CONFIG_HID_LCPOWER is not set CONFIG_HID_LED=y CONFIG_HID_LENOVO=y CONFIG_HID_MAGICMOUSE=y # CONFIG_HID_MALTRON is not set CONFIG_HID_MAYFLASH=y CONFIG_HID_REDRAGON=y CONFIG_HID_MICROSOFT=y CONFIG_HID_MONTEREY=y CONFIG_HID_MULTITOUCH=y # CONFIG_HID_NINTENDO is not set CONFIG_HID_NTI=y # CONFIG_HID_ORTEK is not set # CONFIG_HID_PANTHERLORD is not set CONFIG_HID_PETALYNX=m CONFIG_HID_PICOLCD=y CONFIG_HID_PICOLCD_BACKLIGHT=y # CONFIG_HID_PICOLCD_LEDS is not set # CONFIG_HID_PLANTRONICS is not set CONFIG_HID_PLAYSTATION=m CONFIG_PLAYSTATION_FF=y # CONFIG_HID_RAZER is not set # CONFIG_HID_PRIMAX is not set CONFIG_HID_SAITEK=m CONFIG_HID_SEMITEK=m CONFIG_HID_SPEEDLINK=y CONFIG_HID_STEAM=m CONFIG_HID_STEELSERIES=y # CONFIG_HID_SUNPLUS is not set # CONFIG_HID_RMI is not set CONFIG_HID_GREENASIA=y CONFIG_GREENASIA_FF=y # CONFIG_HID_SMARTJOYPLUS is not set CONFIG_HID_TIVO=y CONFIG_HID_TOPSEED=m CONFIG_HID_THINGM=y CONFIG_HID_UDRAW_PS3=y CONFIG_HID_WIIMOTE=y # CONFIG_HID_XINMO is not set CONFIG_HID_ZEROPLUS=m # CONFIG_ZEROPLUS_FF is not set # CONFIG_HID_ZYDACRON is not set # CONFIG_HID_SENSOR_HUB is not set CONFIG_HID_ALPS=m # end of Special HID drivers # # I2C HID support # # CONFIG_I2C_HID_ACPI is not set CONFIG_I2C_HID_OF=y # CONFIG_I2C_HID_OF_GOODIX is not set # end of I2C HID support CONFIG_I2C_HID_CORE=y # # Intel ISH HID support # # CONFIG_INTEL_ISH_HID is not set # end of Intel ISH HID support # # AMD SFH HID Support # # CONFIG_AMD_SFH_HID is not set # end of AMD SFH HID Support # # Surface System Aggregator Module HID support # CONFIG_SURFACE_KBD=m # end of Surface System Aggregator Module HID support CONFIG_SURFACE_HID_CORE=m # end of HID support CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_SUPPORT=y # CONFIG_USB_ULPI_BUS is not set # CONFIG_USB_CONN_GPIO is not set CONFIG_USB_ARCH_HAS_HCD=y # CONFIG_USB is not set CONFIG_USB_PCI=y # # USB port drivers # # # USB Physical Layer drivers # # CONFIG_NOP_USB_XCEIV is not set # CONFIG_USB_GPIO_VBUS is not set # end of USB Physical Layer drivers # CONFIG_USB_GADGET is not set # CONFIG_TYPEC is not set # CONFIG_USB_ROLE_SWITCH is not set CONFIG_MMC=m CONFIG_PWRSEQ_EMMC=m CONFIG_PWRSEQ_SIMPLE=m CONFIG_MMC_BLOCK=m CONFIG_MMC_BLOCK_MINORS=8 CONFIG_SDIO_UART=m # CONFIG_MMC_TEST is not set # # MMC/SD/SDIO Host Controller Drivers # # CONFIG_MMC_DEBUG is not set CONFIG_MMC_SDHCI=m CONFIG_MMC_SDHCI_IO_ACCESSORS=y # CONFIG_MMC_SDHCI_PCI is not set # CONFIG_MMC_SDHCI_ACPI is not set CONFIG_MMC_SDHCI_PLTFM=m # CONFIG_MMC_SDHCI_OF_ARASAN is not set CONFIG_MMC_SDHCI_OF_ASPEED=m CONFIG_MMC_SDHCI_OF_AT91=m CONFIG_MMC_SDHCI_OF_DWCMSHC=m CONFIG_MMC_SDHCI_CADENCE=m # CONFIG_MMC_SDHCI_F_SDH30 is not set # CONFIG_MMC_SDHCI_MILBEAUT is not set # CONFIG_MMC_TIFM_SD is not set # CONFIG_MMC_SDRICOH_CS is not set # CONFIG_MMC_CB710 is not set # CONFIG_MMC_VIA_SDMMC is not set CONFIG_MMC_USDHI6ROL0=m CONFIG_MMC_CQHCI=m # CONFIG_MMC_HSQ is not set # CONFIG_MMC_TOSHIBA_PCI is not set # CONFIG_MMC_MTK is not set # CONFIG_MMC_SDHCI_XENON is not set # CONFIG_MMC_SDHCI_OMAP is not set # CONFIG_MMC_SDHCI_AM654 is not set CONFIG_SCSI_UFSHCD=y # CONFIG_SCSI_UFS_BSG is not set CONFIG_SCSI_UFS_HPB=y CONFIG_SCSI_UFS_HWMON=y # CONFIG_SCSI_UFSHCD_PCI is not set # CONFIG_SCSI_UFSHCD_PLATFORM is not set CONFIG_MEMSTICK=y # CONFIG_MEMSTICK_DEBUG is not set # # MemoryStick drivers # CONFIG_MEMSTICK_UNSAFE_RESUME=y # CONFIG_MSPRO_BLOCK is not set # CONFIG_MS_BLOCK is not set # # MemoryStick Host Controller Drivers # # CONFIG_MEMSTICK_TIFM_MS is not set # CONFIG_MEMSTICK_JMICRON_38X is not set # CONFIG_MEMSTICK_R592 is not set CONFIG_NEW_LEDS=y CONFIG_LEDS_CLASS=y CONFIG_LEDS_CLASS_FLASH=m CONFIG_LEDS_CLASS_MULTICOLOR=m # CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set # # LED drivers # # CONFIG_LEDS_88PM860X is not set # CONFIG_LEDS_AN30259A is not set CONFIG_LEDS_APU=y CONFIG_LEDS_AW2013=m CONFIG_LEDS_BCM6328=y # CONFIG_LEDS_BCM6358 is not set # CONFIG_LEDS_LM3530 is not set CONFIG_LEDS_LM3532=m # CONFIG_LEDS_LM3533 is not set # CONFIG_LEDS_LM3642 is not set CONFIG_LEDS_LM3692X=m # CONFIG_LEDS_MT6323 is not set # CONFIG_LEDS_PCA9532 is not set CONFIG_LEDS_GPIO=y CONFIG_LEDS_LP3944=m CONFIG_LEDS_LP3952=m # CONFIG_LEDS_LP50XX is not set CONFIG_LEDS_LP55XX_COMMON=m CONFIG_LEDS_LP5521=m CONFIG_LEDS_LP5523=m CONFIG_LEDS_LP5562=m # CONFIG_LEDS_LP8501 is not set # CONFIG_LEDS_LP8788 is not set # CONFIG_LEDS_LP8860 is not set # CONFIG_LEDS_CLEVO_MAIL is not set # CONFIG_LEDS_PCA955X is not set CONFIG_LEDS_PCA963X=m CONFIG_LEDS_WM8350=y CONFIG_LEDS_DA9052=y # CONFIG_LEDS_PWM is not set # CONFIG_LEDS_REGULATOR is not set CONFIG_LEDS_BD2802=m # CONFIG_LEDS_INTEL_SS4200 is not set # CONFIG_LEDS_LT3593 is not set CONFIG_LEDS_TCA6507=m CONFIG_LEDS_TLC591XX=m CONFIG_LEDS_LM355x=m # CONFIG_LEDS_IS31FL319X is not set CONFIG_LEDS_IS31FL32XX=y # # LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM) # CONFIG_LEDS_BLINKM=m CONFIG_LEDS_SYSCON=y CONFIG_LEDS_MLXCPLD=m # CONFIG_LEDS_MLXREG is not set CONFIG_LEDS_USER=y CONFIG_LEDS_NIC78BX=y CONFIG_LEDS_TI_LMU_COMMON=y # CONFIG_LEDS_LM3697 is not set # CONFIG_LEDS_LM36274 is not set CONFIG_LEDS_TPS6105X=y CONFIG_LEDS_LGM=m # # Flash and Torch LED drivers # CONFIG_LEDS_AAT1290=m CONFIG_LEDS_AS3645A=m CONFIG_LEDS_KTD2692=m CONFIG_LEDS_LM3601X=m # CONFIG_LEDS_MAX77693 is not set # CONFIG_LEDS_MT6360 is not set # CONFIG_LEDS_RT4505 is not set CONFIG_LEDS_RT8515=m CONFIG_LEDS_SGM3140=m # # RGB LED drivers # # CONFIG_LEDS_PWM_MULTICOLOR is not set # CONFIG_LEDS_QCOM_LPG is not set # # LED Triggers # CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_TIMER=y CONFIG_LEDS_TRIGGER_ONESHOT=y # CONFIG_LEDS_TRIGGER_MTD is not set CONFIG_LEDS_TRIGGER_HEARTBEAT=m CONFIG_LEDS_TRIGGER_BACKLIGHT=y # CONFIG_LEDS_TRIGGER_CPU is not set CONFIG_LEDS_TRIGGER_ACTIVITY=y CONFIG_LEDS_TRIGGER_GPIO=m CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # CONFIG_LEDS_TRIGGER_TRANSIENT=m CONFIG_LEDS_TRIGGER_CAMERA=y CONFIG_LEDS_TRIGGER_PANIC=y # CONFIG_LEDS_TRIGGER_NETDEV is not set # CONFIG_LEDS_TRIGGER_PATTERN is not set CONFIG_LEDS_TRIGGER_AUDIO=m CONFIG_LEDS_TRIGGER_TTY=m # # Simple LED drivers # CONFIG_ACCESSIBILITY=y # # Speakup console speech # # end of Speakup console speech # CONFIG_INFINIBAND is not set CONFIG_EDAC_ATOMIC_SCRUB=y CONFIG_EDAC_SUPPORT=y CONFIG_RTC_LIB=y CONFIG_RTC_MC146818_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_HCTOSYS=y CONFIG_RTC_HCTOSYS_DEVICE="rtc0" # CONFIG_RTC_SYSTOHC is not set CONFIG_RTC_DEBUG=y # CONFIG_RTC_NVMEM is not set # # RTC interfaces # # CONFIG_RTC_INTF_SYSFS is not set # CONFIG_RTC_INTF_PROC is not set # CONFIG_RTC_INTF_DEV is not set # CONFIG_RTC_DRV_TEST is not set # # I2C RTC drivers # CONFIG_RTC_DRV_88PM860X=m CONFIG_RTC_DRV_ABB5ZES3=y # CONFIG_RTC_DRV_ABEOZ9 is not set # CONFIG_RTC_DRV_ABX80X is not set CONFIG_RTC_DRV_AS3722=m CONFIG_RTC_DRV_DS1307=m CONFIG_RTC_DRV_DS1307_CENTURY=y CONFIG_RTC_DRV_DS1374=y # CONFIG_RTC_DRV_DS1374_WDT is not set CONFIG_RTC_DRV_DS1672=m CONFIG_RTC_DRV_HYM8563=m CONFIG_RTC_DRV_LP8788=y CONFIG_RTC_DRV_MAX6900=m CONFIG_RTC_DRV_MAX8907=m # CONFIG_RTC_DRV_MAX77686 is not set # CONFIG_RTC_DRV_RS5C372 is not set CONFIG_RTC_DRV_ISL1208=m CONFIG_RTC_DRV_ISL12022=y CONFIG_RTC_DRV_ISL12026=y # CONFIG_RTC_DRV_X1205 is not set CONFIG_RTC_DRV_PCF8523=y CONFIG_RTC_DRV_PCF85063=m CONFIG_RTC_DRV_PCF85363=m CONFIG_RTC_DRV_PCF8563=y CONFIG_RTC_DRV_PCF8583=y # CONFIG_RTC_DRV_M41T80 is not set CONFIG_RTC_DRV_BD70528=y CONFIG_RTC_DRV_BQ32K=y # CONFIG_RTC_DRV_TWL4030 is not set CONFIG_RTC_DRV_PALMAS=y # CONFIG_RTC_DRV_TPS6586X is not set # CONFIG_RTC_DRV_TPS65910 is not set # CONFIG_RTC_DRV_S35390A is not set CONFIG_RTC_DRV_FM3130=y # CONFIG_RTC_DRV_RX8010 is not set CONFIG_RTC_DRV_RX8581=y # CONFIG_RTC_DRV_RX8025 is not set CONFIG_RTC_DRV_EM3027=y CONFIG_RTC_DRV_RV3028=m CONFIG_RTC_DRV_RV3032=m # CONFIG_RTC_DRV_RV8803 is not set CONFIG_RTC_DRV_S5M=m # CONFIG_RTC_DRV_SD3078 is not set # # SPI RTC drivers # CONFIG_RTC_I2C_AND_SPI=y # # SPI and I2C RTC drivers # # CONFIG_RTC_DRV_DS3232 is not set # CONFIG_RTC_DRV_PCF2127 is not set CONFIG_RTC_DRV_RV3029C2=y CONFIG_RTC_DRV_RV3029_HWMON=y # CONFIG_RTC_DRV_RX6110 is not set # # Platform RTC drivers # CONFIG_RTC_DRV_CMOS=m CONFIG_RTC_DRV_DS1286=y # CONFIG_RTC_DRV_DS1511 is not set CONFIG_RTC_DRV_DS1553=m # CONFIG_RTC_DRV_DS1685_FAMILY is not set CONFIG_RTC_DRV_DS1742=y CONFIG_RTC_DRV_DS2404=y # CONFIG_RTC_DRV_DA9052 is not set # CONFIG_RTC_DRV_DA9055 is not set CONFIG_RTC_DRV_STK17TA8=m # CONFIG_RTC_DRV_M48T86 is not set CONFIG_RTC_DRV_M48T35=m CONFIG_RTC_DRV_M48T59=y # CONFIG_RTC_DRV_MSM6242 is not set CONFIG_RTC_DRV_BQ4802=y CONFIG_RTC_DRV_RP5C01=y CONFIG_RTC_DRV_V3020=m CONFIG_RTC_DRV_WM8350=m CONFIG_RTC_DRV_PCF50633=m CONFIG_RTC_DRV_ZYNQMP=m CONFIG_RTC_DRV_NTXEC=m # # on-CPU RTC drivers # CONFIG_RTC_DRV_CADENCE=m CONFIG_RTC_DRV_FTRTC010=y CONFIG_RTC_DRV_MT6397=m CONFIG_RTC_DRV_R7301=y # # HID Sensor RTC drivers # CONFIG_RTC_DRV_GOLDFISH=m CONFIG_DMADEVICES=y CONFIG_DMADEVICES_DEBUG=y # CONFIG_DMADEVICES_VDEBUG is not set # # DMA Devices # CONFIG_DMA_ENGINE=y CONFIG_DMA_VIRTUAL_CHANNELS=y CONFIG_DMA_ACPI=y CONFIG_DMA_OF=y CONFIG_ALTERA_MSGDMA=m CONFIG_DW_AXI_DMAC=y CONFIG_FSL_EDMA=m # CONFIG_INTEL_IDMA64 is not set # CONFIG_INTEL_IDXD_COMPAT is not set # CONFIG_INTEL_IOATDMA is not set # CONFIG_PLX_DMA is not set CONFIG_XILINX_ZYNQMP_DPDMA=m # CONFIG_AMD_PTDMA is not set CONFIG_QCOM_HIDMA_MGMT=m CONFIG_QCOM_HIDMA=y CONFIG_DW_DMAC_CORE=y CONFIG_DW_DMAC=y # CONFIG_DW_DMAC_PCI is not set CONFIG_SF_PDMA=y CONFIG_INTEL_LDMA=y # # DMA Clients # # CONFIG_ASYNC_TX_DMA is not set CONFIG_DMATEST=y CONFIG_DMA_ENGINE_RAID=y # # DMABUF options # CONFIG_SYNC_FILE=y CONFIG_SW_SYNC=y # CONFIG_UDMABUF is not set # CONFIG_DMABUF_MOVE_NOTIFY is not set CONFIG_DMABUF_DEBUG=y # CONFIG_DMABUF_SELFTESTS is not set # CONFIG_DMABUF_HEAPS is not set CONFIG_DMABUF_SYSFS_STATS=y # end of DMABUF options CONFIG_AUXDISPLAY=y CONFIG_CHARLCD=y CONFIG_LINEDISP=m CONFIG_HD44780_COMMON=m CONFIG_HD44780=m CONFIG_KS0108=m CONFIG_KS0108_PORT=0x378 CONFIG_KS0108_DELAY=2 CONFIG_IMG_ASCII_LCD=m CONFIG_LCD2S=y CONFIG_PARPORT_PANEL=m CONFIG_PANEL_PARPORT=0 CONFIG_PANEL_PROFILE=5 CONFIG_PANEL_CHANGE_MESSAGE=y CONFIG_PANEL_BOOT_MESSAGE="" CONFIG_CHARLCD_BL_OFF=y # CONFIG_CHARLCD_BL_ON is not set # CONFIG_CHARLCD_BL_FLASH is not set CONFIG_PANEL=m CONFIG_UIO=m # CONFIG_UIO_CIF is not set CONFIG_UIO_PDRV_GENIRQ=m # CONFIG_UIO_DMEM_GENIRQ is not set # CONFIG_UIO_AEC is not set # CONFIG_UIO_SERCOS3 is not set # CONFIG_UIO_PCI_GENERIC is not set # CONFIG_UIO_NETX is not set CONFIG_UIO_PRUSS=m # CONFIG_UIO_MF624 is not set CONFIG_VFIO=m CONFIG_VFIO_IOMMU_TYPE1=m # CONFIG_VFIO_NOIOMMU is not set CONFIG_VFIO_PCI_MMAP=y CONFIG_VFIO_PCI_INTX=y # CONFIG_VFIO_PCI is not set CONFIG_VFIO_MDEV=m # CONFIG_VIRT_DRIVERS is not set CONFIG_VIRTIO=m # CONFIG_VIRTIO_MENU is not set # CONFIG_VDPA is not set # CONFIG_VHOST_MENU is not set # # Microsoft Hyper-V guest support # # CONFIG_HYPERV is not set # end of Microsoft Hyper-V guest support # # Xen driver support # # CONFIG_XEN_BALLOON is not set # CONFIG_XEN_DEV_EVTCHN is not set # CONFIG_XEN_BACKEND is not set CONFIG_XENFS=y CONFIG_XEN_COMPAT_XENFS=y CONFIG_XEN_SYS_HYPERVISOR=y CONFIG_XEN_XENBUS_FRONTEND=y CONFIG_XEN_GNTDEV=m # CONFIG_XEN_GNTDEV_DMABUF is not set CONFIG_XEN_GRANT_DEV_ALLOC=y CONFIG_XEN_GRANT_DMA_ALLOC=y # CONFIG_XEN_PVCALLS_FRONTEND is not set CONFIG_XEN_PRIVCMD=y CONFIG_XEN_EFI=y CONFIG_XEN_AUTO_XLATE=y CONFIG_XEN_ACPI=y # CONFIG_XEN_VIRTIO is not set # end of Xen driver support CONFIG_GREYBUS=m # CONFIG_COMEDI is not set # CONFIG_STAGING is not set CONFIG_X86_PLATFORM_DEVICES=y # CONFIG_ACPI_WMI is not set CONFIG_ACERHDF=m CONFIG_ACER_WIRELESS=y # CONFIG_AMD_PMC is not set # CONFIG_AMD_HSMP is not set CONFIG_ADV_SWBUTTON=m # CONFIG_APPLE_GMUX is not set CONFIG_ASUS_LAPTOP=m CONFIG_ASUS_WIRELESS=y # CONFIG_ASUS_TF103C_DOCK is not set CONFIG_X86_PLATFORM_DRIVERS_DELL=y CONFIG_DCDBAS=m CONFIG_DELL_LAPTOP=m CONFIG_DELL_RBU=m CONFIG_DELL_SMBIOS=m CONFIG_DELL_SMBIOS_SMM=y CONFIG_DELL_SMO8800=y CONFIG_FUJITSU_LAPTOP=m CONFIG_FUJITSU_TABLET=y CONFIG_GPD_POCKET_FAN=m # CONFIG_HP_ACCEL is not set # CONFIG_WIRELESS_HOTKEY is not set # CONFIG_IBM_RTL is not set # CONFIG_SENSORS_HDAPS is not set # CONFIG_INTEL_ATOMISP2_LED is not set # CONFIG_INTEL_IFS is not set # CONFIG_INTEL_SAR_INT1092 is not set # CONFIG_INTEL_SKL_INT3472 is not set # CONFIG_INTEL_PMC_CORE is not set # # Intel Speed Select Technology interface support # # CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set # end of Intel Speed Select Technology interface support # # Intel Uncore Frequency Control # # CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set # end of Intel Uncore Frequency Control # CONFIG_INTEL_HID_EVENT is not set # CONFIG_INTEL_VBTN is not set # CONFIG_INTEL_INT0002_VGPIO is not set # CONFIG_INTEL_PUNIT_IPC is not set # CONFIG_INTEL_RST is not set # CONFIG_INTEL_SMARTCONNECT is not set # CONFIG_INTEL_TURBO_MAX_3 is not set # CONFIG_INTEL_VSEC is not set CONFIG_PCENGINES_APU2=y CONFIG_BARCO_P50_GPIO=m CONFIG_SAMSUNG_LAPTOP=m CONFIG_SAMSUNG_Q10=m CONFIG_TOSHIBA_BT_RFKILL=y CONFIG_TOSHIBA_HAPS=y CONFIG_ACPI_CMPC=m CONFIG_PANASONIC_LAPTOP=m # CONFIG_TOPSTAR_LAPTOP is not set # CONFIG_MLX_PLATFORM is not set # CONFIG_INTEL_IPS is not set CONFIG_INTEL_SCU_IPC=y # CONFIG_INTEL_SCU_PCI is not set # CONFIG_INTEL_SCU_PLATFORM is not set # CONFIG_SIEMENS_SIMATIC_IPC is not set # CONFIG_WINMATE_FM07_KEYS is not set CONFIG_PMC_ATOM=y CONFIG_GOLDFISH_PIPE=m CONFIG_CHROME_PLATFORMS=y # CONFIG_CHROMEOS_ACPI is not set CONFIG_CHROMEOS_LAPTOP=m CONFIG_CHROMEOS_PSTORE=m CONFIG_CHROMEOS_TBMC=y # CONFIG_CROS_EC is not set CONFIG_CROS_KBD_LED_BACKLIGHT=m # CONFIG_MELLANOX_PLATFORM is not set CONFIG_SURFACE_PLATFORMS=y CONFIG_SURFACE_3_POWER_OPREGION=y # CONFIG_SURFACE_ACPI_NOTIFY is not set CONFIG_SURFACE_AGGREGATOR_CDEV=y # CONFIG_SURFACE_AGGREGATOR_REGISTRY is not set # CONFIG_SURFACE_DTX is not set # CONFIG_SURFACE_GPE is not set # CONFIG_SURFACE_HOTPLUG is not set CONFIG_SURFACE_PRO3_BUTTON=y CONFIG_SURFACE_AGGREGATOR=y CONFIG_SURFACE_AGGREGATOR_BUS=y CONFIG_HAVE_CLK=y CONFIG_HAVE_CLK_PREPARE=y CONFIG_COMMON_CLK=y CONFIG_COMMON_CLK_MAX77686=m CONFIG_COMMON_CLK_MAX9485=y CONFIG_COMMON_CLK_SI5341=m CONFIG_COMMON_CLK_SI5351=y # CONFIG_COMMON_CLK_SI514 is not set CONFIG_COMMON_CLK_SI544=m CONFIG_COMMON_CLK_SI570=y # CONFIG_COMMON_CLK_CDCE706 is not set CONFIG_COMMON_CLK_CDCE925=y CONFIG_COMMON_CLK_CS2000_CP=m # CONFIG_COMMON_CLK_S2MPS11 is not set CONFIG_CLK_TWL6040=m # CONFIG_COMMON_CLK_AXI_CLKGEN is not set CONFIG_COMMON_CLK_PALMAS=y CONFIG_COMMON_CLK_PWM=m # CONFIG_COMMON_CLK_RS9_PCIE is not set CONFIG_COMMON_CLK_VC5=m CONFIG_COMMON_CLK_BD718XX=y CONFIG_COMMON_CLK_FIXED_MMIO=y CONFIG_CLK_LGM_CGU=y CONFIG_XILINX_VCU=m CONFIG_HWSPINLOCK=y # # Clock Source drivers # CONFIG_TIMER_OF=y CONFIG_TIMER_PROBE=y CONFIG_CLKEVT_I8253=y CONFIG_I8253_LOCK=y CONFIG_CLKBLD_I8253=y CONFIG_MICROCHIP_PIT64B=y # end of Clock Source drivers CONFIG_MAILBOX=y CONFIG_PLATFORM_MHU=m CONFIG_PCC=y # CONFIG_ALTERA_MBOX is not set # CONFIG_MAILBOX_TEST is not set CONFIG_IOMMU_API=y # CONFIG_IOMMU_SUPPORT is not set # # Remoteproc drivers # # CONFIG_REMOTEPROC is not set # end of Remoteproc drivers # # Rpmsg drivers # CONFIG_RPMSG=m # CONFIG_RPMSG_CHAR is not set # CONFIG_RPMSG_CTRL is not set CONFIG_RPMSG_NS=m # CONFIG_RPMSG_QCOM_GLINK_RPM is not set CONFIG_RPMSG_VIRTIO=m # end of Rpmsg drivers CONFIG_SOUNDWIRE=y # # SoundWire Devices # # # SOC (System On Chip) specific Drivers # # # Amlogic SoC drivers # # end of Amlogic SoC drivers # # Broadcom SoC drivers # # end of Broadcom SoC drivers # # NXP/Freescale QorIQ SoC drivers # # end of NXP/Freescale QorIQ SoC drivers # # i.MX SoC drivers # # end of i.MX SoC drivers # # Enable LiteX SoC Builder specific drivers # # CONFIG_LITEX_SOC_CONTROLLER is not set # end of Enable LiteX SoC Builder specific drivers # # Qualcomm SoC drivers # # end of Qualcomm SoC drivers # CONFIG_SOC_TI is not set # # Xilinx SoC drivers # # end of Xilinx SoC drivers # end of SOC (System On Chip) specific Drivers CONFIG_PM_DEVFREQ=y # # DEVFREQ Governors # CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y CONFIG_DEVFREQ_GOV_PERFORMANCE=m # CONFIG_DEVFREQ_GOV_POWERSAVE is not set CONFIG_DEVFREQ_GOV_USERSPACE=m # CONFIG_DEVFREQ_GOV_PASSIVE is not set # # DEVFREQ Drivers # CONFIG_PM_DEVFREQ_EVENT=y CONFIG_EXTCON=m # # Extcon Device Drivers # CONFIG_EXTCON_FSA9480=m CONFIG_EXTCON_GPIO=m CONFIG_EXTCON_INTEL_INT3496=m # CONFIG_EXTCON_MAX14577 is not set CONFIG_EXTCON_MAX3355=m # CONFIG_EXTCON_MAX77693 is not set # CONFIG_EXTCON_PALMAS is not set CONFIG_EXTCON_PTN5150=m CONFIG_EXTCON_RT8973A=m CONFIG_EXTCON_SM5502=m # CONFIG_EXTCON_USB_GPIO is not set CONFIG_EXTCON_USBC_TUSB320=m # CONFIG_MEMORY is not set # CONFIG_IIO is not set # CONFIG_NTB is not set # CONFIG_VME_BUS is not set CONFIG_PWM=y CONFIG_PWM_SYSFS=y # CONFIG_PWM_DEBUG is not set # CONFIG_PWM_ATMEL_HLCDC_PWM is not set # CONFIG_PWM_ATMEL_TCB is not set # CONFIG_PWM_DWC is not set CONFIG_PWM_FSL_FTM=y # CONFIG_PWM_INTEL_LGM is not set CONFIG_PWM_IQS620A=m # CONFIG_PWM_LPSS_PCI is not set # CONFIG_PWM_LPSS_PLATFORM is not set # CONFIG_PWM_NTXEC is not set CONFIG_PWM_PCA9685=y # CONFIG_PWM_TWL is not set CONFIG_PWM_TWL_LED=m # CONFIG_PWM_XILINX is not set # # IRQ chip support # CONFIG_IRQCHIP=y # CONFIG_AL_FIC is not set # CONFIG_XILINX_INTC is not set # end of IRQ chip support CONFIG_IPACK_BUS=y # CONFIG_BOARD_TPCI200 is not set CONFIG_SERIAL_IPOCTAL=m # CONFIG_RESET_CONTROLLER is not set # # PHY Subsystem # CONFIG_GENERIC_PHY=y CONFIG_GENERIC_PHY_MIPI_DPHY=y # CONFIG_USB_LGM_PHY is not set CONFIG_PHY_CAN_TRANSCEIVER=m # # PHY drivers for Broadcom platforms # CONFIG_BCM_KONA_USB2_PHY=y # end of PHY drivers for Broadcom platforms CONFIG_PHY_CADENCE_TORRENT=m CONFIG_PHY_CADENCE_DPHY=y # CONFIG_PHY_CADENCE_DPHY_RX is not set CONFIG_PHY_CADENCE_SALVO=m CONFIG_PHY_PXA_28NM_HSIC=y CONFIG_PHY_PXA_28NM_USB2=y # CONFIG_PHY_LAN966X_SERDES is not set # CONFIG_PHY_MAPPHONE_MDM6600 is not set CONFIG_PHY_OCELOT_SERDES=y CONFIG_PHY_INTEL_LGM_COMBO=y CONFIG_PHY_INTEL_LGM_EMMC=y # end of PHY Subsystem CONFIG_POWERCAP=y CONFIG_IDLE_INJECT=y CONFIG_DTPM=y CONFIG_MCB=m # CONFIG_MCB_PCI is not set # CONFIG_MCB_LPC is not set # # Performance monitor support # # end of Performance monitor support # CONFIG_RAS is not set # CONFIG_USB4 is not set # # Android # # CONFIG_ANDROID is not set # end of Android # CONFIG_LIBNVDIMM is not set # CONFIG_DAX is not set CONFIG_NVMEM=y CONFIG_NVMEM_SYSFS=y CONFIG_NVMEM_SPMI_SDAM=m # CONFIG_RAVE_SP_EEPROM is not set CONFIG_NVMEM_RMEM=y # # HW tracing support # CONFIG_STM=y CONFIG_STM_PROTO_BASIC=y CONFIG_STM_PROTO_SYS_T=m # CONFIG_STM_DUMMY is not set CONFIG_STM_SOURCE_CONSOLE=m # CONFIG_STM_SOURCE_HEARTBEAT is not set # CONFIG_STM_SOURCE_FTRACE is not set CONFIG_INTEL_TH=m # CONFIG_INTEL_TH_PCI is not set CONFIG_INTEL_TH_ACPI=m CONFIG_INTEL_TH_GTH=m CONFIG_INTEL_TH_STH=m CONFIG_INTEL_TH_MSU=m CONFIG_INTEL_TH_PTI=m CONFIG_INTEL_TH_DEBUG=y # end of HW tracing support CONFIG_FPGA=m CONFIG_ALTERA_PR_IP_CORE=m CONFIG_ALTERA_PR_IP_CORE_PLAT=m # CONFIG_FPGA_MGR_ALTERA_CVP is not set CONFIG_FPGA_BRIDGE=m CONFIG_ALTERA_FREEZE_BRIDGE=m # CONFIG_XILINX_PR_DECOUPLER is not set CONFIG_FPGA_REGION=m # CONFIG_OF_FPGA_REGION is not set # CONFIG_FPGA_DFL is not set CONFIG_FSI=y # CONFIG_FSI_NEW_DEV_NODE is not set # CONFIG_FSI_MASTER_GPIO is not set # CONFIG_FSI_MASTER_HUB is not set # CONFIG_FSI_MASTER_ASPEED is not set # CONFIG_FSI_SCOM is not set CONFIG_FSI_SBEFIFO=y # CONFIG_FSI_OCC is not set # CONFIG_TEE is not set CONFIG_MULTIPLEXER=m # # Multiplexer drivers # # CONFIG_MUX_ADG792A is not set # CONFIG_MUX_GPIO is not set # CONFIG_MUX_MMIO is not set # end of Multiplexer drivers CONFIG_PM_OPP=y CONFIG_SIOX=m # CONFIG_SIOX_BUS_GPIO is not set # CONFIG_SLIMBUS is not set # CONFIG_INTERCONNECT is not set # CONFIG_COUNTER is not set CONFIG_MOST=m CONFIG_MOST_CDEV=m # CONFIG_PECI is not set # CONFIG_HTE is not set # end of Device Drivers # # File systems # CONFIG_DCACHE_WORD_ACCESS=y # CONFIG_VALIDATE_FS_PARSER is not set CONFIG_FS_IOMAP=y # CONFIG_EXT2_FS is not set CONFIG_EXT3_FS=m CONFIG_EXT3_FS_POSIX_ACL=y # CONFIG_EXT3_FS_SECURITY is not set CONFIG_EXT4_FS=m # CONFIG_EXT4_USE_FOR_EXT2 is not set CONFIG_EXT4_FS_POSIX_ACL=y # CONFIG_EXT4_FS_SECURITY is not set # CONFIG_EXT4_DEBUG is not set CONFIG_JBD2=m CONFIG_JBD2_DEBUG=y CONFIG_FS_MBCACHE=m # CONFIG_REISERFS_FS is not set CONFIG_JFS_FS=m CONFIG_JFS_POSIX_ACL=y CONFIG_JFS_SECURITY=y # CONFIG_JFS_DEBUG is not set # CONFIG_JFS_STATISTICS is not set CONFIG_XFS_FS=m # CONFIG_XFS_SUPPORT_V4 is not set # CONFIG_XFS_QUOTA is not set CONFIG_XFS_POSIX_ACL=y CONFIG_XFS_RT=y # CONFIG_XFS_ONLINE_SCRUB is not set # CONFIG_XFS_WARN is not set # CONFIG_XFS_DEBUG is not set CONFIG_GFS2_FS=m # CONFIG_OCFS2_FS is not set CONFIG_BTRFS_FS=y # CONFIG_BTRFS_FS_POSIX_ACL is not set # CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set # CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set CONFIG_BTRFS_DEBUG=y # CONFIG_BTRFS_ASSERT is not set # CONFIG_BTRFS_FS_REF_VERIFY is not set CONFIG_NILFS2_FS=y CONFIG_F2FS_FS=m # CONFIG_F2FS_STAT_FS is not set CONFIG_F2FS_FS_XATTR=y CONFIG_F2FS_FS_POSIX_ACL=y CONFIG_F2FS_FS_SECURITY=y # CONFIG_F2FS_CHECK_FS is not set CONFIG_F2FS_FAULT_INJECTION=y # CONFIG_F2FS_FS_COMPRESSION is not set CONFIG_F2FS_IOSTAT=y # CONFIG_F2FS_UNFAIR_RWSEM is not set CONFIG_FS_POSIX_ACL=y CONFIG_EXPORTFS=y CONFIG_EXPORTFS_BLOCK_OPS=y CONFIG_FILE_LOCKING=y CONFIG_FS_ENCRYPTION=y CONFIG_FS_ENCRYPTION_ALGS=m # CONFIG_FS_VERITY is not set CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY_USER=y CONFIG_FANOTIFY=y # CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set CONFIG_QUOTA=y # CONFIG_QUOTA_NETLINK_INTERFACE is not set # CONFIG_PRINT_QUOTA_WARNING is not set # CONFIG_QUOTA_DEBUG is not set CONFIG_QUOTA_TREE=y CONFIG_QFMT_V1=y CONFIG_QFMT_V2=y CONFIG_QUOTACTL=y # CONFIG_AUTOFS4_FS is not set CONFIG_AUTOFS_FS=m CONFIG_FUSE_FS=m CONFIG_CUSE=m # CONFIG_VIRTIO_FS is not set # CONFIG_OVERLAY_FS is not set # # Caches # CONFIG_NETFS_SUPPORT=y # CONFIG_NETFS_STATS is not set CONFIG_FSCACHE=y # CONFIG_FSCACHE_STATS is not set # CONFIG_FSCACHE_DEBUG is not set # CONFIG_CACHEFILES is not set # end of Caches # # CD-ROM/DVD Filesystems # CONFIG_ISO9660_FS=y # CONFIG_JOLIET is not set # CONFIG_ZISOFS is not set CONFIG_UDF_FS=y # end of CD-ROM/DVD Filesystems # # DOS/FAT/EXFAT/NT Filesystems # CONFIG_FAT_FS=m CONFIG_MSDOS_FS=m # CONFIG_VFAT_FS is not set CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_EXFAT_FS=m CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8" # CONFIG_NTFS_FS is not set CONFIG_NTFS3_FS=m # CONFIG_NTFS3_64BIT_CLUSTER is not set CONFIG_NTFS3_LZX_XPRESS=y CONFIG_NTFS3_FS_POSIX_ACL=y # end of DOS/FAT/EXFAT/NT Filesystems # # Pseudo filesystems # CONFIG_PROC_FS=y # CONFIG_PROC_KCORE is not set CONFIG_PROC_SYSCTL=y CONFIG_PROC_PAGE_MONITOR=y CONFIG_PROC_CHILDREN=y CONFIG_PROC_PID_ARCH_STATUS=y CONFIG_PROC_CPU_RESCTRL=y CONFIG_KERNFS=y CONFIG_SYSFS=y CONFIG_TMPFS=y # CONFIG_TMPFS_POSIX_ACL is not set # CONFIG_TMPFS_XATTR is not set # CONFIG_TMPFS_INODE64 is not set # CONFIG_HUGETLBFS is not set CONFIG_ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y CONFIG_MEMFD_CREATE=y CONFIG_ARCH_HAS_GIGANTIC_PAGE=y CONFIG_CONFIGFS_FS=y CONFIG_EFIVAR_FS=m # end of Pseudo filesystems CONFIG_MISC_FILESYSTEMS=y CONFIG_ORANGEFS_FS=y # CONFIG_ADFS_FS is not set CONFIG_AFFS_FS=y CONFIG_ECRYPT_FS=m # CONFIG_ECRYPT_FS_MESSAGING is not set # CONFIG_HFS_FS is not set CONFIG_HFSPLUS_FS=y CONFIG_BEFS_FS=y # CONFIG_BEFS_DEBUG is not set CONFIG_BFS_FS=y CONFIG_EFS_FS=y # CONFIG_JFFS2_FS is not set # CONFIG_UBIFS_FS is not set # CONFIG_CRAMFS is not set CONFIG_SQUASHFS=m # CONFIG_SQUASHFS_FILE_CACHE is not set CONFIG_SQUASHFS_FILE_DIRECT=y CONFIG_SQUASHFS_DECOMP_SINGLE=y # CONFIG_SQUASHFS_DECOMP_MULTI is not set # CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set # CONFIG_SQUASHFS_XATTR is not set # CONFIG_SQUASHFS_ZLIB is not set # CONFIG_SQUASHFS_LZ4 is not set CONFIG_SQUASHFS_LZO=y # CONFIG_SQUASHFS_XZ is not set CONFIG_SQUASHFS_ZSTD=y # CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set CONFIG_SQUASHFS_EMBEDDED=y CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3 CONFIG_VXFS_FS=y CONFIG_MINIX_FS=y CONFIG_OMFS_FS=y CONFIG_HPFS_FS=y CONFIG_QNX4FS_FS=m CONFIG_QNX6FS_FS=m # CONFIG_QNX6FS_DEBUG is not set CONFIG_ROMFS_FS=y # CONFIG_ROMFS_BACKED_BY_BLOCK is not set CONFIG_ROMFS_BACKED_BY_MTD=y # CONFIG_ROMFS_BACKED_BY_BOTH is not set CONFIG_ROMFS_ON_MTD=y CONFIG_PSTORE=y CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240 # CONFIG_PSTORE_DEFLATE_COMPRESS is not set CONFIG_PSTORE_LZO_COMPRESS=m CONFIG_PSTORE_LZ4_COMPRESS=m CONFIG_PSTORE_LZ4HC_COMPRESS=m # CONFIG_PSTORE_842_COMPRESS is not set CONFIG_PSTORE_ZSTD_COMPRESS=y CONFIG_PSTORE_COMPRESS=y CONFIG_PSTORE_LZO_COMPRESS_DEFAULT=y # CONFIG_PSTORE_LZ4_COMPRESS_DEFAULT is not set # CONFIG_PSTORE_LZ4HC_COMPRESS_DEFAULT is not set # CONFIG_PSTORE_ZSTD_COMPRESS_DEFAULT is not set CONFIG_PSTORE_COMPRESS_DEFAULT="lzo" CONFIG_PSTORE_CONSOLE=y # CONFIG_PSTORE_PMSG is not set CONFIG_PSTORE_RAM=y # CONFIG_PSTORE_BLK is not set # CONFIG_SYSV_FS is not set CONFIG_UFS_FS=y # CONFIG_UFS_FS_WRITE is not set CONFIG_UFS_DEBUG=y CONFIG_EROFS_FS=y # CONFIG_EROFS_FS_DEBUG is not set # CONFIG_EROFS_FS_XATTR is not set # CONFIG_EROFS_FS_ZIP is not set CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V2=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=m # CONFIG_NFS_V4_1 is not set # CONFIG_ROOT_NFS is not set # CONFIG_NFS_FSCACHE is not set # CONFIG_NFS_USE_LEGACY_DNS is not set CONFIG_NFS_USE_KERNEL_DNS=y CONFIG_NFS_DISABLE_UDP_SUPPORT=y # CONFIG_NFSD is not set CONFIG_GRACE_PERIOD=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y CONFIG_SUNRPC_GSS=m # CONFIG_SUNRPC_DEBUG is not set # CONFIG_CEPH_FS is not set CONFIG_CIFS=m CONFIG_CIFS_STATS2=y CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y # CONFIG_CIFS_UPCALL is not set # CONFIG_CIFS_XATTR is not set CONFIG_CIFS_DEBUG=y # CONFIG_CIFS_DEBUG2 is not set # CONFIG_CIFS_DEBUG_DUMP_KEYS is not set # CONFIG_CIFS_DFS_UPCALL is not set # CONFIG_CIFS_SWN_UPCALL is not set # CONFIG_CIFS_FSCACHE is not set # CONFIG_SMB_SERVER is not set CONFIG_SMBFS_COMMON=m # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set # CONFIG_9P_FS is not set CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_CODEPAGE_437 is not set CONFIG_NLS_CODEPAGE_737=m CONFIG_NLS_CODEPAGE_775=m CONFIG_NLS_CODEPAGE_850=m CONFIG_NLS_CODEPAGE_852=y CONFIG_NLS_CODEPAGE_855=y # CONFIG_NLS_CODEPAGE_857 is not set CONFIG_NLS_CODEPAGE_860=y CONFIG_NLS_CODEPAGE_861=m CONFIG_NLS_CODEPAGE_862=m # CONFIG_NLS_CODEPAGE_863 is not set CONFIG_NLS_CODEPAGE_864=y CONFIG_NLS_CODEPAGE_865=y # CONFIG_NLS_CODEPAGE_866 is not set CONFIG_NLS_CODEPAGE_869=m # CONFIG_NLS_CODEPAGE_936 is not set CONFIG_NLS_CODEPAGE_950=m CONFIG_NLS_CODEPAGE_932=y CONFIG_NLS_CODEPAGE_949=m # CONFIG_NLS_CODEPAGE_874 is not set CONFIG_NLS_ISO8859_8=y # CONFIG_NLS_CODEPAGE_1250 is not set CONFIG_NLS_CODEPAGE_1251=y CONFIG_NLS_ASCII=m CONFIG_NLS_ISO8859_1=m CONFIG_NLS_ISO8859_2=y CONFIG_NLS_ISO8859_3=m CONFIG_NLS_ISO8859_4=m # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set CONFIG_NLS_ISO8859_13=m CONFIG_NLS_ISO8859_14=m CONFIG_NLS_ISO8859_15=m CONFIG_NLS_KOI8_R=m # CONFIG_NLS_KOI8_U is not set # CONFIG_NLS_MAC_ROMAN is not set # CONFIG_NLS_MAC_CELTIC is not set CONFIG_NLS_MAC_CENTEURO=m CONFIG_NLS_MAC_CROATIAN=y CONFIG_NLS_MAC_CYRILLIC=y CONFIG_NLS_MAC_GAELIC=y # CONFIG_NLS_MAC_GREEK is not set # CONFIG_NLS_MAC_ICELAND is not set CONFIG_NLS_MAC_INUIT=y CONFIG_NLS_MAC_ROMANIAN=y CONFIG_NLS_MAC_TURKISH=m CONFIG_NLS_UTF8=y # CONFIG_DLM is not set # CONFIG_UNICODE is not set CONFIG_IO_WQ=y # end of File systems # # Security options # CONFIG_KEYS=y # CONFIG_KEYS_REQUEST_CACHE is not set # CONFIG_PERSISTENT_KEYRINGS is not set # CONFIG_TRUSTED_KEYS is not set CONFIG_ENCRYPTED_KEYS=m # CONFIG_USER_DECRYPTED_DATA is not set CONFIG_KEY_DH_OPERATIONS=y # CONFIG_KEY_NOTIFICATIONS is not set # CONFIG_SECURITY_DMESG_RESTRICT is not set CONFIG_SECURITY=y CONFIG_SECURITYFS=y # CONFIG_SECURITY_NETWORK is not set CONFIG_PAGE_TABLE_ISOLATION=y # CONFIG_SECURITY_PATH is not set CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y CONFIG_HARDENED_USERCOPY=y CONFIG_FORTIFY_SOURCE=y CONFIG_STATIC_USERMODEHELPER=y CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper" # CONFIG_SECURITY_SMACK is not set # CONFIG_SECURITY_TOMOYO is not set # CONFIG_SECURITY_APPARMOR is not set # CONFIG_SECURITY_LOADPIN is not set # CONFIG_SECURITY_YAMA is not set # CONFIG_SECURITY_SAFESETID is not set # CONFIG_SECURITY_LOCKDOWN_LSM is not set # CONFIG_SECURITY_LANDLOCK is not set CONFIG_INTEGRITY=y # CONFIG_INTEGRITY_SIGNATURE is not set # CONFIG_IMA is not set # CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set # CONFIG_EVM is not set CONFIG_DEFAULT_SECURITY_DAC=y CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf" # # Kernel hardening options # # # Memory initialization # CONFIG_INIT_STACK_NONE=y # CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set # CONFIG_GCC_PLUGIN_STACKLEAK is not set CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y # CONFIG_INIT_ON_FREE_DEFAULT_ON is not set CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y # CONFIG_ZERO_CALL_USED_REGS is not set # end of Memory initialization CONFIG_RANDSTRUCT_NONE=y # CONFIG_RANDSTRUCT_FULL is not set # CONFIG_RANDSTRUCT_PERFORMANCE is not set # end of Kernel hardening options # end of Security options CONFIG_XOR_BLOCKS=y CONFIG_CRYPTO=y # # Crypto core or helper # CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_ALGAPI2=y CONFIG_CRYPTO_AEAD=y CONFIG_CRYPTO_AEAD2=y CONFIG_CRYPTO_SKCIPHER=y CONFIG_CRYPTO_SKCIPHER2=y CONFIG_CRYPTO_HASH=y CONFIG_CRYPTO_HASH2=y CONFIG_CRYPTO_RNG=m CONFIG_CRYPTO_RNG2=y CONFIG_CRYPTO_RNG_DEFAULT=m CONFIG_CRYPTO_AKCIPHER2=y CONFIG_CRYPTO_AKCIPHER=y CONFIG_CRYPTO_KPP2=y CONFIG_CRYPTO_KPP=y CONFIG_CRYPTO_ACOMP2=y CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_MANAGER2=y # CONFIG_CRYPTO_USER is not set CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y CONFIG_CRYPTO_GF128MUL=y CONFIG_CRYPTO_NULL=y CONFIG_CRYPTO_NULL2=y CONFIG_CRYPTO_PCRYPT=m CONFIG_CRYPTO_CRYPTD=y # CONFIG_CRYPTO_AUTHENC is not set # CONFIG_CRYPTO_TEST is not set CONFIG_CRYPTO_SIMD=y # # Public-key cryptography # # CONFIG_CRYPTO_RSA is not set CONFIG_CRYPTO_DH=y # CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set # CONFIG_CRYPTO_ECDH is not set # CONFIG_CRYPTO_ECDSA is not set # CONFIG_CRYPTO_ECRDSA is not set CONFIG_CRYPTO_SM2=y CONFIG_CRYPTO_CURVE25519=y # CONFIG_CRYPTO_CURVE25519_X86 is not set # # Authenticated Encryption with Associated Data # CONFIG_CRYPTO_CCM=m CONFIG_CRYPTO_GCM=y # CONFIG_CRYPTO_CHACHA20POLY1305 is not set CONFIG_CRYPTO_AEGIS128=y CONFIG_CRYPTO_AEGIS128_AESNI_SSE2=m CONFIG_CRYPTO_SEQIV=m # CONFIG_CRYPTO_ECHAINIV is not set # # Block modes # CONFIG_CRYPTO_CBC=m # CONFIG_CRYPTO_CFB is not set CONFIG_CRYPTO_CTR=y CONFIG_CRYPTO_CTS=y CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_LRW=m # CONFIG_CRYPTO_OFB is not set CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_XTS=m CONFIG_CRYPTO_KEYWRAP=m CONFIG_CRYPTO_NHPOLY1305=y CONFIG_CRYPTO_NHPOLY1305_SSE2=y CONFIG_CRYPTO_NHPOLY1305_AVX2=y CONFIG_CRYPTO_ADIANTUM=m # CONFIG_CRYPTO_ESSIV is not set # # Hash modes # CONFIG_CRYPTO_CMAC=m CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_XCBC=m CONFIG_CRYPTO_VMAC=y # # Digest # CONFIG_CRYPTO_CRC32C=y CONFIG_CRYPTO_CRC32C_INTEL=m CONFIG_CRYPTO_CRC32=m CONFIG_CRYPTO_CRC32_PCLMUL=y CONFIG_CRYPTO_XXHASH=y CONFIG_CRYPTO_BLAKE2B=y # CONFIG_CRYPTO_BLAKE2S is not set CONFIG_CRYPTO_BLAKE2S_X86=m CONFIG_CRYPTO_CRCT10DIF=y # CONFIG_CRYPTO_CRCT10DIF_PCLMUL is not set CONFIG_CRYPTO_GHASH=y CONFIG_CRYPTO_POLY1305=y CONFIG_CRYPTO_POLY1305_X86_64=m CONFIG_CRYPTO_MD4=m CONFIG_CRYPTO_MD5=m CONFIG_CRYPTO_MICHAEL_MIC=y CONFIG_CRYPTO_RMD160=m CONFIG_CRYPTO_SHA1=m CONFIG_CRYPTO_SHA1_SSSE3=m CONFIG_CRYPTO_SHA256_SSSE3=y # CONFIG_CRYPTO_SHA512_SSSE3 is not set CONFIG_CRYPTO_SHA256=y CONFIG_CRYPTO_SHA512=y CONFIG_CRYPTO_SHA3=m CONFIG_CRYPTO_SM3=y # CONFIG_CRYPTO_SM3_GENERIC is not set # CONFIG_CRYPTO_SM3_AVX_X86_64 is not set # CONFIG_CRYPTO_STREEBOG is not set CONFIG_CRYPTO_WP512=y # CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set # # Ciphers # CONFIG_CRYPTO_AES=y CONFIG_CRYPTO_AES_TI=m CONFIG_CRYPTO_AES_NI_INTEL=y CONFIG_CRYPTO_BLOWFISH=y CONFIG_CRYPTO_BLOWFISH_COMMON=y CONFIG_CRYPTO_BLOWFISH_X86_64=m CONFIG_CRYPTO_CAMELLIA=y CONFIG_CRYPTO_CAMELLIA_X86_64=y CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=y # CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set CONFIG_CRYPTO_CAST_COMMON=y CONFIG_CRYPTO_CAST5=m CONFIG_CRYPTO_CAST5_AVX_X86_64=m CONFIG_CRYPTO_CAST6=y CONFIG_CRYPTO_CAST6_AVX_X86_64=y # CONFIG_CRYPTO_DES is not set CONFIG_CRYPTO_DES3_EDE_X86_64=y # CONFIG_CRYPTO_FCRYPT is not set CONFIG_CRYPTO_CHACHA20=m # CONFIG_CRYPTO_CHACHA20_X86_64 is not set CONFIG_CRYPTO_SERPENT=m CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m CONFIG_CRYPTO_SERPENT_AVX_X86_64=m CONFIG_CRYPTO_SERPENT_AVX2_X86_64=m CONFIG_CRYPTO_SM4=m # CONFIG_CRYPTO_SM4_GENERIC is not set CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64=m # CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64 is not set # CONFIG_CRYPTO_TWOFISH is not set CONFIG_CRYPTO_TWOFISH_COMMON=y CONFIG_CRYPTO_TWOFISH_X86_64=y # CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set # CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set # # Compression # CONFIG_CRYPTO_DEFLATE=m CONFIG_CRYPTO_LZO=m CONFIG_CRYPTO_842=y CONFIG_CRYPTO_LZ4=m CONFIG_CRYPTO_LZ4HC=m CONFIG_CRYPTO_ZSTD=y # # Random Number Generation # # CONFIG_CRYPTO_ANSI_CPRNG is not set CONFIG_CRYPTO_DRBG_MENU=m CONFIG_CRYPTO_DRBG_HMAC=y # CONFIG_CRYPTO_DRBG_HASH is not set # CONFIG_CRYPTO_DRBG_CTR is not set CONFIG_CRYPTO_DRBG=m CONFIG_CRYPTO_JITTERENTROPY=m CONFIG_CRYPTO_KDF800108_CTR=y # CONFIG_CRYPTO_USER_API_HASH is not set # CONFIG_CRYPTO_USER_API_SKCIPHER is not set # CONFIG_CRYPTO_USER_API_RNG is not set # CONFIG_CRYPTO_USER_API_AEAD is not set CONFIG_CRYPTO_HASH_INFO=y # CONFIG_CRYPTO_HW is not set CONFIG_ASYMMETRIC_KEY_TYPE=y CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m CONFIG_X509_CERTIFICATE_PARSER=m CONFIG_PKCS8_PRIVATE_KEY_PARSER=m CONFIG_PKCS7_MESSAGE_PARSER=m # CONFIG_FIPS_SIGNATURE_SELFTEST is not set # # Certificates for signature checking # # CONFIG_SYSTEM_TRUSTED_KEYRING is not set CONFIG_SYSTEM_BLACKLIST_KEYRING=y CONFIG_SYSTEM_BLACKLIST_HASH_LIST="" # end of Certificates for signature checking CONFIG_BINARY_PRINTF=y # # Library routines # CONFIG_RAID6_PQ=y CONFIG_RAID6_PQ_BENCHMARK=y CONFIG_LINEAR_RANGES=y # CONFIG_PACKING is not set CONFIG_BITREVERSE=y CONFIG_GENERIC_STRNCPY_FROM_USER=y CONFIG_GENERIC_STRNLEN_USER=y CONFIG_GENERIC_NET_UTILS=y CONFIG_CORDIC=y CONFIG_PRIME_NUMBERS=y CONFIG_RATIONAL=y CONFIG_GENERIC_PCI_IOMAP=y CONFIG_GENERIC_IOMAP=y CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y CONFIG_ARCH_HAS_FAST_MULTIPLIER=y CONFIG_ARCH_USE_SYM_ANNOTATIONS=y # # Crypto library routines # CONFIG_CRYPTO_LIB_AES=y CONFIG_CRYPTO_ARCH_HAVE_LIB_BLAKE2S=y CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m CONFIG_CRYPTO_LIB_CHACHA=m CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=y # CONFIG_CRYPTO_LIB_CURVE25519 is not set CONFIG_CRYPTO_LIB_DES=y CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11 CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305=m CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y CONFIG_CRYPTO_LIB_POLY1305=m # CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set CONFIG_CRYPTO_LIB_SHA256=y # end of Crypto library routines CONFIG_LIB_MEMNEQ=y CONFIG_CRC_CCITT=y CONFIG_CRC16=y CONFIG_CRC_T10DIF=y # CONFIG_CRC64_ROCKSOFT is not set CONFIG_CRC_ITU_T=y CONFIG_CRC32=y # CONFIG_CRC32_SELFTEST is not set # CONFIG_CRC32_SLICEBY8 is not set CONFIG_CRC32_SLICEBY4=y # CONFIG_CRC32_SARWATE is not set # CONFIG_CRC32_BIT is not set # CONFIG_CRC64 is not set CONFIG_CRC4=y # CONFIG_CRC7 is not set CONFIG_LIBCRC32C=y CONFIG_CRC8=y CONFIG_XXHASH=y # CONFIG_RANDOM32_SELFTEST is not set CONFIG_842_COMPRESS=y CONFIG_842_DECOMPRESS=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_LZO_COMPRESS=y CONFIG_LZO_DECOMPRESS=y CONFIG_LZ4_COMPRESS=m CONFIG_LZ4HC_COMPRESS=m CONFIG_LZ4_DECOMPRESS=m CONFIG_ZSTD_COMPRESS=y CONFIG_ZSTD_DECOMPRESS=y CONFIG_XZ_DEC=y CONFIG_XZ_DEC_X86=y # CONFIG_XZ_DEC_POWERPC is not set CONFIG_XZ_DEC_IA64=y CONFIG_XZ_DEC_ARM=y # CONFIG_XZ_DEC_ARMTHUMB is not set CONFIG_XZ_DEC_SPARC=y CONFIG_XZ_DEC_MICROLZMA=y CONFIG_XZ_DEC_BCJ=y # CONFIG_XZ_DEC_TEST is not set CONFIG_DECOMPRESS_GZIP=y CONFIG_DECOMPRESS_BZIP2=y CONFIG_DECOMPRESS_XZ=y CONFIG_GENERIC_ALLOCATOR=y CONFIG_REED_SOLOMON=y CONFIG_REED_SOLOMON_ENC8=y CONFIG_REED_SOLOMON_DEC8=y CONFIG_INTERVAL_TREE=y CONFIG_ASSOCIATIVE_ARRAY=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y CONFIG_HAS_DMA=y CONFIG_NEED_SG_DMA_LENGTH=y CONFIG_NEED_DMA_MAP_STATE=y CONFIG_ARCH_DMA_ADDR_T_64BIT=y CONFIG_DMA_DECLARE_COHERENT=y CONFIG_SWIOTLB=y CONFIG_DMA_RESTRICTED_POOL=y # CONFIG_DMA_API_DEBUG is not set # CONFIG_DMA_MAP_BENCHMARK is not set CONFIG_SGL_ALLOC=y # CONFIG_CPUMASK_OFFSTACK is not set CONFIG_CPU_RMAP=y CONFIG_DQL=y CONFIG_GLOB=y # CONFIG_GLOB_SELFTEST is not set CONFIG_NLATTR=y CONFIG_CLZ_TAB=y # CONFIG_IRQ_POLL is not set CONFIG_MPILIB=y CONFIG_LIBFDT=y CONFIG_OID_REGISTRY=m CONFIG_UCS2_STRING=y CONFIG_HAVE_GENERIC_VDSO=y CONFIG_GENERIC_GETTIMEOFDAY=y CONFIG_GENERIC_VDSO_TIME_NS=y CONFIG_FONT_SUPPORT=y CONFIG_FONT_8x16=y CONFIG_FONT_AUTOSELECT=y CONFIG_SG_POOL=y CONFIG_ARCH_HAS_PMEM_API=y CONFIG_MEMREGION=y CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y CONFIG_ARCH_HAS_COPY_MC=y CONFIG_ARCH_STACKWALK=y CONFIG_STACKDEPOT=y CONFIG_STACKDEPOT_ALWAYS_INIT=y CONFIG_STACK_HASH_ORDER=20 CONFIG_SBITMAP=y # end of Library routines # # Kernel hacking # # # printk and dmesg options # CONFIG_PRINTK_TIME=y CONFIG_PRINTK_CALLER=y # CONFIG_STACKTRACE_BUILD_ID is not set CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7 CONFIG_CONSOLE_LOGLEVEL_QUIET=4 CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4 # CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_DYNAMIC_DEBUG_CORE is not set # CONFIG_SYMBOLIC_ERRNAME is not set CONFIG_DEBUG_BUGVERBOSE=y # end of printk and dmesg options CONFIG_DEBUG_KERNEL=y # CONFIG_DEBUG_MISC is not set # # Compile-time checks and compiler options # CONFIG_DEBUG_INFO_NONE=y # CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set # CONFIG_DEBUG_INFO_DWARF4 is not set # CONFIG_DEBUG_INFO_DWARF5 is not set CONFIG_FRAME_WARN=8192 CONFIG_STRIP_ASM_SYMS=y # CONFIG_READABLE_ASM is not set CONFIG_HEADERS_INSTALL=y CONFIG_DEBUG_SECTION_MISMATCH=y CONFIG_SECTION_MISMATCH_WARN_ONLY=y CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B=y CONFIG_OBJTOOL=y CONFIG_NOINSTR_VALIDATION=y CONFIG_VMLINUX_MAP=y CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y # end of Compile-time checks and compiler options # # Generic Kernel Debugging Instruments # CONFIG_MAGIC_SYSRQ=y CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1 CONFIG_MAGIC_SYSRQ_SERIAL=y CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE="" CONFIG_DEBUG_FS=y # CONFIG_DEBUG_FS_ALLOW_ALL is not set CONFIG_DEBUG_FS_DISALLOW_MOUNT=y # CONFIG_DEBUG_FS_ALLOW_NONE is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y CONFIG_UBSAN=y # CONFIG_UBSAN_TRAP is not set CONFIG_CC_HAS_UBSAN_BOUNDS=y CONFIG_UBSAN_BOUNDS=y CONFIG_UBSAN_ONLY_BOUNDS=y CONFIG_UBSAN_SHIFT=y # CONFIG_UBSAN_DIV_ZERO is not set # CONFIG_UBSAN_BOOL is not set # CONFIG_UBSAN_ENUM is not set # CONFIG_UBSAN_ALIGNMENT is not set CONFIG_UBSAN_SANITIZE_ALL=y # CONFIG_TEST_UBSAN is not set CONFIG_HAVE_ARCH_KCSAN=y CONFIG_HAVE_KCSAN_COMPILER=y # end of Generic Kernel Debugging Instruments # # Networking Debugging # # CONFIG_NET_DEV_REFCNT_TRACKER is not set # CONFIG_NET_NS_REFCNT_TRACKER is not set # CONFIG_DEBUG_NET is not set # end of Networking Debugging # # Memory Debugging # CONFIG_PAGE_EXTENSION=y # CONFIG_DEBUG_PAGEALLOC is not set CONFIG_SLUB_DEBUG=y CONFIG_SLUB_DEBUG_ON=y CONFIG_PAGE_OWNER=y # CONFIG_PAGE_TABLE_CHECK is not set # CONFIG_PAGE_POISONING is not set # CONFIG_DEBUG_PAGE_REF is not set # CONFIG_DEBUG_RODATA_TEST is not set CONFIG_ARCH_HAS_DEBUG_WX=y CONFIG_DEBUG_WX=y CONFIG_GENERIC_PTDUMP=y CONFIG_PTDUMP_CORE=y # CONFIG_PTDUMP_DEBUGFS is not set # CONFIG_DEBUG_OBJECTS is not set CONFIG_HAVE_DEBUG_KMEMLEAK=y # CONFIG_DEBUG_KMEMLEAK is not set # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_SCHED_STACK_END_CHECK is not set CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y # CONFIG_DEBUG_VM is not set CONFIG_DEBUG_VM_PGTABLE=y CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y # CONFIG_DEBUG_VIRTUAL is not set CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_MEMORY_NOTIFIER_ERROR_INJECT is not set CONFIG_DEBUG_PER_CPU_MAPS=y CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y # CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP is not set CONFIG_HAVE_ARCH_KASAN=y CONFIG_HAVE_ARCH_KASAN_VMALLOC=y CONFIG_CC_HAS_KASAN_GENERIC=y CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y CONFIG_KASAN=y CONFIG_KASAN_GENERIC=y # CONFIG_KASAN_OUTLINE is not set CONFIG_KASAN_INLINE=y CONFIG_KASAN_STACK=y CONFIG_KASAN_VMALLOC=y # CONFIG_KASAN_MODULE_TEST is not set CONFIG_HAVE_ARCH_KFENCE=y # CONFIG_KFENCE is not set # end of Memory Debugging CONFIG_DEBUG_SHIRQ=y # # Debug Oops, Lockups and Hangs # CONFIG_PANIC_ON_OOPS=y CONFIG_PANIC_ON_OOPS_VALUE=1 CONFIG_PANIC_TIMEOUT=0 CONFIG_LOCKUP_DETECTOR=y CONFIG_SOFTLOCKUP_DETECTOR=y CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y CONFIG_HARDLOCKUP_DETECTOR_PERF=y CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y CONFIG_HARDLOCKUP_DETECTOR=y CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y CONFIG_DETECT_HUNG_TASK=y CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480 # CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set CONFIG_WQ_WATCHDOG=y # CONFIG_TEST_LOCKUP is not set # end of Debug Oops, Lockups and Hangs # # Scheduler Debugging # # CONFIG_SCHED_DEBUG is not set CONFIG_SCHED_INFO=y CONFIG_SCHEDSTATS=y # end of Scheduler Debugging CONFIG_DEBUG_TIMEKEEPING=y # # Lock Debugging (spinlocks, mutexes, etc...) # CONFIG_LOCK_DEBUGGING_SUPPORT=y CONFIG_PROVE_LOCKING=y # CONFIG_PROVE_RAW_LOCK_NESTING is not set # CONFIG_LOCK_STAT is not set CONFIG_DEBUG_RT_MUTEXES=y CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y CONFIG_DEBUG_RWSEMS=y CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_LOCKDEP=y CONFIG_LOCKDEP_BITS=15 CONFIG_LOCKDEP_CHAINS_BITS=16 CONFIG_LOCKDEP_STACK_TRACE_BITS=19 CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14 CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12 # CONFIG_DEBUG_LOCKDEP is not set CONFIG_DEBUG_ATOMIC_SLEEP=y # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_LOCK_TORTURE_TEST is not set # CONFIG_WW_MUTEX_SELFTEST is not set # CONFIG_SCF_TORTURE_TEST is not set # CONFIG_CSD_LOCK_WAIT_DEBUG is not set # end of Lock Debugging (spinlocks, mutexes, etc...) CONFIG_TRACE_IRQFLAGS=y CONFIG_TRACE_IRQFLAGS_NMI=y CONFIG_DEBUG_IRQFLAGS=y CONFIG_STACKTRACE=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set # # Debug kernel data structures # CONFIG_DEBUG_LIST=y # CONFIG_DEBUG_PLIST is not set # CONFIG_DEBUG_SG is not set CONFIG_DEBUG_NOTIFIERS=y CONFIG_BUG_ON_DATA_CORRUPTION=y # end of Debug kernel data structures # CONFIG_DEBUG_CREDENTIALS is not set # # RCU Debugging # CONFIG_PROVE_RCU=y CONFIG_TORTURE_TEST=y CONFIG_RCU_SCALE_TEST=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_REF_SCALE_TEST is not set CONFIG_RCU_CPU_STALL_TIMEOUT=21 CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0 # CONFIG_RCU_TRACE is not set # CONFIG_RCU_EQS_DEBUG is not set # end of RCU Debugging # CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set # CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set CONFIG_LATENCYTOP=y CONFIG_USER_STACKTRACE_SUPPORT=y CONFIG_NOP_TRACER=y CONFIG_HAVE_RETHOOK=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_HAVE_SYSCALL_TRACEPOINTS=y CONFIG_HAVE_FENTRY=y CONFIG_HAVE_OBJTOOL_MCOUNT=y CONFIG_HAVE_C_RECORDMCOUNT=y CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y CONFIG_TRACE_CLOCK=y CONFIG_RING_BUFFER=y CONFIG_EVENT_TRACING=y CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_PREEMPTIRQ_TRACEPOINTS=y CONFIG_TRACING=y CONFIG_TRACING_SUPPORT=y # CONFIG_FTRACE is not set # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set CONFIG_SAMPLES=y # CONFIG_SAMPLE_AUXDISPLAY is not set # CONFIG_SAMPLE_TRACE_EVENTS is not set # CONFIG_SAMPLE_TRACE_CUSTOM_EVENTS is not set # CONFIG_SAMPLE_TRACE_PRINTK is not set # CONFIG_SAMPLE_TRACE_ARRAY is not set CONFIG_SAMPLE_KOBJECT=m CONFIG_SAMPLE_HW_BREAKPOINT=m CONFIG_SAMPLE_KFIFO=m CONFIG_SAMPLE_RPMSG_CLIENT=m CONFIG_SAMPLE_CONFIGFS=m CONFIG_SAMPLE_FANOTIFY_ERROR=y CONFIG_SAMPLE_HIDRAW=y CONFIG_SAMPLE_LANDLOCK=y # CONFIG_SAMPLE_PIDFD is not set # CONFIG_SAMPLE_SECCOMP is not set # CONFIG_SAMPLE_TIMER is not set # CONFIG_SAMPLE_UHID is not set # CONFIG_SAMPLE_VFIO_MDEV_MTTY is not set # CONFIG_SAMPLE_VFIO_MDEV_MDPY is not set # CONFIG_SAMPLE_VFIO_MDEV_MBOCHS is not set CONFIG_SAMPLE_ANDROID_BINDERFS=y CONFIG_SAMPLE_VFS=y CONFIG_SAMPLE_WATCHDOG=y CONFIG_SAMPLE_WATCH_QUEUE=y CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y CONFIG_STRICT_DEVMEM=y CONFIG_IO_STRICT_DEVMEM=y # # x86 Debugging # CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y CONFIG_EARLY_PRINTK_USB=y CONFIG_X86_VERBOSE_BOOTUP=y CONFIG_EARLY_PRINTK=y CONFIG_EARLY_PRINTK_DBGP=y CONFIG_EARLY_PRINTK_USB_XDBC=y # CONFIG_EFI_PGT_DUMP is not set # CONFIG_DEBUG_TLBFLUSH is not set CONFIG_HAVE_MMIOTRACE_SUPPORT=y # CONFIG_X86_DECODER_SELFTEST is not set # CONFIG_IO_DELAY_0X80 is not set # CONFIG_IO_DELAY_0XED is not set # CONFIG_IO_DELAY_UDELAY is not set CONFIG_IO_DELAY_NONE=y CONFIG_DEBUG_BOOT_PARAMS=y # CONFIG_CPA_DEBUG is not set CONFIG_DEBUG_ENTRY=y # CONFIG_DEBUG_NMI_SELFTEST is not set CONFIG_X86_DEBUG_FPU=y # CONFIG_PUNIT_ATOM_DEBUG is not set CONFIG_UNWINDER_ORC=y # CONFIG_UNWINDER_FRAME_POINTER is not set # end of x86 Debugging # # Kernel Testing and Coverage # # CONFIG_KUNIT is not set CONFIG_NOTIFIER_ERROR_INJECTION=m CONFIG_PM_NOTIFIER_ERROR_INJECT=m CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT=m # CONFIG_NETDEV_NOTIFIER_ERROR_INJECT is not set # CONFIG_FAULT_INJECTION is not set CONFIG_ARCH_HAS_KCOV=y CONFIG_CC_HAS_SANCOV_TRACE_PC=y CONFIG_KCOV=y # CONFIG_KCOV_ENABLE_COMPARISONS is not set # CONFIG_KCOV_INSTRUMENT_ALL is not set CONFIG_KCOV_IRQ_AREA_SIZE=0x40000 # CONFIG_RUNTIME_TESTING_MENU is not set CONFIG_ARCH_USE_MEMTEST=y # CONFIG_MEMTEST is not set # end of Kernel Testing and Coverage # end of Kernel hacking [-- Attachment #3: job-script --] [-- Type: text/plain, Size: 4946 bytes --] #!/bin/sh export_top_env() { export suite='boot' export testcase='boot' export category='functional' export timeout='10m' export job_origin='boot-300s.yaml' export queue_cmdline_keys='branch commit' export queue='bisect' export testbox='vm-snb' export tbox_group='vm-snb' export branch='linux-devel/devel-hourly-20220730-221739' export commit='3616799128612e04ed919579e2c7b0dccf6bcb00' export kconfig='x86_64-randconfig-a005-20220117' export nr_vm=160 export submit_id='62e5b81efbf52a146f5c0bbf' export job_file='/lkp/jobs/scheduled/vm-meta-17/boot-300-debian-11.1-x86_64-20220510.cgz-3616799128612e04ed919579e2c7b0dccf6bcb00-20220731-70767-mo1pnh-2.yaml' export id='63d9c94eeb4a6bbff0b8b54505e33bea4150b275' export queuer_version='/zday/lkp' export model='qemu-system-x86_64 -enable-kvm -cpu SandyBridge' export nr_cpu=2 export memory='16G' export need_kconfig=\{\"KVM_GUEST\"\=\>\"y\"\} export ssh_base_port=23032 export kernel_cmdline='vmalloc=256M initramfs_async=0 page_owner=on' export rootfs='debian-11.1-x86_64-20220510.cgz' export compiler='gcc-11' export enqueue_time='2022-07-31 07:00:46 +0800' export _id='62e5bc01fbf52a146f5c0bc1' export _rt='/result/boot/300/vm-snb/debian-11.1-x86_64-20220510.cgz/x86_64-randconfig-a005-20220117/gcc-11/3616799128612e04ed919579e2c7b0dccf6bcb00' export user='lkp' export LKP_SERVER='internal-lkp-server' export result_root='/result/boot/300/vm-snb/debian-11.1-x86_64-20220510.cgz/x86_64-randconfig-a005-20220117/gcc-11/3616799128612e04ed919579e2c7b0dccf6bcb00/19' export scheduler_version='/lkp/lkp/src' export arch='x86_64' export max_uptime=600 export initrd='/osimage/debian/debian-11.1-x86_64-20220510.cgz' export bootloader_append='root=/dev/ram0 RESULT_ROOT=/result/boot/300/vm-snb/debian-11.1-x86_64-20220510.cgz/x86_64-randconfig-a005-20220117/gcc-11/3616799128612e04ed919579e2c7b0dccf6bcb00/19 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-a005-20220117/gcc-11/3616799128612e04ed919579e2c7b0dccf6bcb00/vmlinuz-5.19.0-rc5-00010-g361679912861 branch=linux-devel/devel-hourly-20220730-221739 job=/lkp/jobs/scheduled/vm-meta-17/boot-300-debian-11.1-x86_64-20220510.cgz-3616799128612e04ed919579e2c7b0dccf6bcb00-20220731-70767-mo1pnh-2.yaml user=lkp ARCH=x86_64 kconfig=x86_64-randconfig-a005-20220117 commit=3616799128612e04ed919579e2c7b0dccf6bcb00 vmalloc=256M initramfs_async=0 page_owner=on max_uptime=600 LKP_SERVER=internal-lkp-server selinux=0 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw' export modules_initrd='/pkg/linux/x86_64-randconfig-a005-20220117/gcc-11/3616799128612e04ed919579e2c7b0dccf6bcb00/modules.cgz' export bm_initrd='/osimage/deps/debian-11.1-x86_64-20220510.cgz/lkp_20220513.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/run-ipconfig_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/rsync-rootfs_20220515.cgz' export lkp_initrd='/osimage/user/lkp/lkp-x86_64.cgz' export site='inn' export LKP_CGI_PORT=80 export LKP_CIFS_PORT=139 export schedule_notify_address= export meta_host='vm-meta-17' export kernel='/pkg/linux/x86_64-randconfig-a005-20220117/gcc-11/3616799128612e04ed919579e2c7b0dccf6bcb00/vmlinuz-5.19.0-rc5-00010-g361679912861' export dequeue_time='2022-07-31 07:29:21 +0800' export job_initrd='/lkp/jobs/scheduled/vm-meta-17/boot-300-debian-11.1-x86_64-20220510.cgz-3616799128612e04ed919579e2c7b0dccf6bcb00-20220731-70767-mo1pnh-2.cgz' [ -n "$LKP_SRC" ] || export LKP_SRC=/lkp/${user:-lkp}/src } run_job() { echo $$ > $TMP/run-job.pid . $LKP_SRC/lib/http.sh . $LKP_SRC/lib/job.sh . $LKP_SRC/lib/env.sh export_top_env run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time run_monitor $LKP_SRC/monitors/wrapper kmsg run_monitor $LKP_SRC/monitors/wrapper heartbeat run_monitor $LKP_SRC/monitors/wrapper meminfo run_monitor $LKP_SRC/monitors/wrapper oom-killer run_monitor $LKP_SRC/monitors/plain/watchdog run_test $LKP_SRC/tests/wrapper sleep 300 } extract_stats() { export stats_part_begin= export stats_part_end= $LKP_SRC/stats/wrapper boot-slabinfo $LKP_SRC/stats/wrapper boot-meminfo $LKP_SRC/stats/wrapper memmap $LKP_SRC/stats/wrapper boot-memory $LKP_SRC/stats/wrapper boot-time $LKP_SRC/stats/wrapper kernel-size $LKP_SRC/stats/wrapper kmsg $LKP_SRC/stats/wrapper sleep $LKP_SRC/stats/wrapper meminfo $LKP_SRC/stats/wrapper time sleep.time $LKP_SRC/stats/wrapper dmesg $LKP_SRC/stats/wrapper kmsg $LKP_SRC/stats/wrapper last_state $LKP_SRC/stats/wrapper stderr $LKP_SRC/stats/wrapper time } "$@" [-- Attachment #4: dmesg.xz --] [-- Type: application/x-xz, Size: 70772 bytes --] ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-07-31 6:53 ` [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten kernel test robot @ 2022-07-31 8:16 ` Feng Tang 2022-08-01 6:21 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-07-31 8:16 UTC (permalink / raw) To: Sang, Oliver Cc: lkp, Vlastimil Babka, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang Hi Oliver, On Sun, Jul 31, 2022 at 02:53:17PM +0800, Sang, Oliver wrote: > > > Greeting, > > FYI, we noticed the following commit (built with gcc-11): > > commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") > url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 > base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next > patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com > > in testcase: boot > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot <oliver.sang@intel.com> > > > [ 50.637839][ T154] ============================================================================= > [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten > [ 50.641291][ T154] ----------------------------------------------------------------------------- > [ 50.641291][ T154] > [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc > [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 > [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 > [ 50.647411][ T154] __slab_alloc+0x1a/0x22 > [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 > [ 50.649237][ T154] __sdt_alloc+0x258/0x457 > [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 > [ 50.650981][ T154] sched_init_smp+0x30/0xa5 > [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b > [ 50.652767][ T154] kernel_init+0x14/0x127 > [ 50.653594][ T154] ret_from_fork+0x1f/0x30 > [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) > [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 > [ 50.656866][ T154] > [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ > [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. > [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ > [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ > [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 > [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 > [ 50.668694][ T154] Call Trace: > [ 50.669331][ T154] <TASK> > [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d > [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe > [ 50.671436][ T154] check_object+0xdc/0x24d > [ 50.672163][ T154] free_debug_processing+0x98/0x210 > [ 50.673904][ T154] __slab_free+0x46/0x198 > [ 50.675746][ T154] qlist_free_all+0xae/0xde > [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 > [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a > [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 > [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 > [ 50.680938][ T154] getname_flags+0x4b/0x314 > [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c > [ 50.706848][ T154] Disabling lock debugging due to kernel taint > [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc Thanks for the report! From the log it happened when kasan is enabled, and my first guess is the data processing from kmalloc redzone handling had some conflict with kasan's in allocation path (though I tested some kernel config with KASAN enabled) Will study more about kasan and reproduce/debug this. thanks - Feng > > To reproduce: > > # build kernel > cd linux > cp config-5.19.0-rc5-00010-g361679912861 .config > make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules > make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install > cd <mod-install-dir> > find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz > > > git clone https://github.com/intel/lkp-tests.git > cd lkp-tests > bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email > > # if come across any failure that blocks the test, > # please remove ~/.lkp and /lkp dir to run from a clean state. > > > > -- > 0-DAY CI Kernel Test Service > https://01.org/lkp ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-07-31 8:16 ` Feng Tang @ 2022-08-01 6:21 ` Feng Tang 2022-08-01 7:26 ` Dmitry Vyukov 2022-08-01 14:23 ` Vlastimil Babka 0 siblings, 2 replies; 31+ messages in thread From: Feng Tang @ 2022-08-01 6:21 UTC (permalink / raw) To: Sang, Oliver, Vlastimil Babka Cc: lkp, Vlastimil Babka, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, Dmitry Vyukov, kasan-dev On Sun, Jul 31, 2022 at 04:16:53PM +0800, Tang, Feng wrote: > Hi Oliver, > > On Sun, Jul 31, 2022 at 02:53:17PM +0800, Sang, Oliver wrote: > > > > > > Greeting, > > > > FYI, we noticed the following commit (built with gcc-11): > > > > commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") > > url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 > > base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next > > patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com > > > > in testcase: boot > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > > > > [ 50.637839][ T154] ============================================================================= > > [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten > > [ 50.641291][ T154] ----------------------------------------------------------------------------- > > [ 50.641291][ T154] > > [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc > > [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 > > [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 > > [ 50.647411][ T154] __slab_alloc+0x1a/0x22 > > [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 > > [ 50.649237][ T154] __sdt_alloc+0x258/0x457 > > [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 > > [ 50.650981][ T154] sched_init_smp+0x30/0xa5 > > [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b > > [ 50.652767][ T154] kernel_init+0x14/0x127 > > [ 50.653594][ T154] ret_from_fork+0x1f/0x30 > > [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) > > [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 > > [ 50.656866][ T154] > > [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ > > [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. > > [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ > > [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ > > [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 > > [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 > > [ 50.668694][ T154] Call Trace: > > [ 50.669331][ T154] <TASK> > > [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d > > [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe > > [ 50.671436][ T154] check_object+0xdc/0x24d > > [ 50.672163][ T154] free_debug_processing+0x98/0x210 > > [ 50.673904][ T154] __slab_free+0x46/0x198 > > [ 50.675746][ T154] qlist_free_all+0xae/0xde > > [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 > > [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a > > [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 > > [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 > > [ 50.680938][ T154] getname_flags+0x4b/0x314 > > [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c > > [ 50.706848][ T154] Disabling lock debugging due to kernel taint > > [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc > > Thanks for the report! > > From the log it happened when kasan is enabled, and my first guess is > the data processing from kmalloc redzone handling had some conflict > with kasan's in allocation path (though I tested some kernel config > with KASAN enabled) > > Will study more about kasan and reproduce/debug this. thanks Cc kansan mail list. This is really related with KASAN debug, that in free path, some kmalloc redzone ([orig_size+1, object_size]) area is written by kasan to save free meta info. The callstack is: kfree slab_free slab_free_freelist_hook slab_free_hook __kasan_slab_free ____kasan_slab_free kasan_set_free_info kasan_set_track And this issue only happens with "kmalloc-16" slab. Kasan has 2 tracks: alloc_track and free_track, for x86_64 test platform, most of the slabs will reserve space for alloc_track, and reuse the 'object' area for free_track. The kasan free_track is 16 bytes large, that it will occupy the whole 'kmalloc-16's object area, so when kmalloc-redzone is enabled by this patch, the 'overwritten' error is triggered. But it won't hurt other kmalloc slabs, as kasan's free meta won't conflict with kmalloc-redzone which stay in the latter part of kmalloc area. So the solution I can think of is: * skip the kmalloc-redzone for kmalloc-16 only, or * skip kmalloc-redzone if kasan is enabled, or * let kasan reserve the free meta (16 bytes) outside of object just like for alloc meta I don't have way to test kasan's SW/HW tag configuration, which is only enabled on arm64 now. And I don't know if there will also be some conflict. Thanks, Feng ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-01 6:21 ` Feng Tang @ 2022-08-01 7:26 ` Dmitry Vyukov 2022-08-01 7:48 ` Feng Tang 2022-08-01 14:23 ` Vlastimil Babka 1 sibling, 1 reply; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-01 7:26 UTC (permalink / raw) To: Feng Tang Cc: Sang, Oliver, Vlastimil Babka, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Mon, 1 Aug 2022 at 08:22, Feng Tang <feng.tang@intel.com> wrote: > > On Sun, Jul 31, 2022 at 04:16:53PM +0800, Tang, Feng wrote: > > Hi Oliver, > > > > On Sun, Jul 31, 2022 at 02:53:17PM +0800, Sang, Oliver wrote: > > > > > > > > > Greeting, > > > > > > FYI, we noticed the following commit (built with gcc-11): > > > > > > commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") > > > url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 > > > base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next > > > patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com > > > > > > in testcase: boot > > > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > > > > > If you fix the issue, kindly add following tag > > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > > > > > > > [ 50.637839][ T154] ============================================================================= > > > [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten > > > [ 50.641291][ T154] ----------------------------------------------------------------------------- > > > [ 50.641291][ T154] > > > [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc > > > [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 > > > [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 > > > [ 50.647411][ T154] __slab_alloc+0x1a/0x22 > > > [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 > > > [ 50.649237][ T154] __sdt_alloc+0x258/0x457 > > > [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 > > > [ 50.650981][ T154] sched_init_smp+0x30/0xa5 > > > [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b > > > [ 50.652767][ T154] kernel_init+0x14/0x127 > > > [ 50.653594][ T154] ret_from_fork+0x1f/0x30 > > > [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) > > > [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 > > > [ 50.656866][ T154] > > > [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ > > > [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. > > > [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ > > > [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ > > > [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 > > > [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 > > > [ 50.668694][ T154] Call Trace: > > > [ 50.669331][ T154] <TASK> > > > [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d > > > [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe > > > [ 50.671436][ T154] check_object+0xdc/0x24d > > > [ 50.672163][ T154] free_debug_processing+0x98/0x210 > > > [ 50.673904][ T154] __slab_free+0x46/0x198 > > > [ 50.675746][ T154] qlist_free_all+0xae/0xde > > > [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 > > > [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a > > > [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 > > > [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 > > > [ 50.680938][ T154] getname_flags+0x4b/0x314 > > > [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c > > > [ 50.706848][ T154] Disabling lock debugging due to kernel taint > > > [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc > > > > Thanks for the report! > > > > From the log it happened when kasan is enabled, and my first guess is > > the data processing from kmalloc redzone handling had some conflict > > with kasan's in allocation path (though I tested some kernel config > > with KASAN enabled) > > > > Will study more about kasan and reproduce/debug this. thanks > > Cc kansan mail list. > > This is really related with KASAN debug, that in free path, some > kmalloc redzone ([orig_size+1, object_size]) area is written by > kasan to save free meta info. > > The callstack is: > > kfree > slab_free > slab_free_freelist_hook > slab_free_hook > __kasan_slab_free > ____kasan_slab_free > kasan_set_free_info > kasan_set_track > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > tracks: alloc_track and free_track, for x86_64 test platform, most > of the slabs will reserve space for alloc_track, and reuse the > 'object' area for free_track. The kasan free_track is 16 bytes > large, that it will occupy the whole 'kmalloc-16's object area, > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > error is triggered. > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > conflict with kmalloc-redzone which stay in the latter part of > kmalloc area. > > So the solution I can think of is: > * skip the kmalloc-redzone for kmalloc-16 only, or > * skip kmalloc-redzone if kasan is enabled, or > * let kasan reserve the free meta (16 bytes) outside of object > just like for alloc meta /\/\/\ Please just not the last option. Memory consumption matters. I would do whatever is the simplest, e.g. skip the check for kmalloc-16 when KASAN is enabled. Or does it make sense to prohibit KASAN+SLUB_DEBUG combination? Does SLUB_DEBUG add anything on top of KASAN? > I don't have way to test kasan's SW/HW tag configuration, which > is only enabled on arm64 now. And I don't know if there will > also be some conflict. > > Thanks, > Feng > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-01 7:26 ` Dmitry Vyukov @ 2022-08-01 7:48 ` Feng Tang 2022-08-01 8:13 ` Christoph Lameter 0 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-01 7:48 UTC (permalink / raw) To: Dmitry Vyukov Cc: Sang, Oliver, Vlastimil Babka, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Mon, Aug 01, 2022 at 03:26:43PM +0800, Dmitry Vyukov wrote: > On Mon, 1 Aug 2022 at 08:22, Feng Tang <feng.tang@intel.com> wrote: > > > > On Sun, Jul 31, 2022 at 04:16:53PM +0800, Tang, Feng wrote: > > > Hi Oliver, > > > > > > On Sun, Jul 31, 2022 at 02:53:17PM +0800, Sang, Oliver wrote: > > > > > > > > > > > > Greeting, > > > > > > > > FYI, we noticed the following commit (built with gcc-11): > > > > > > > > commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") > > > > url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 > > > > base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next > > > > patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com > > > > > > > > in testcase: boot > > > > > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > > > > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > > > > > > > > If you fix the issue, kindly add following tag > > > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > > > > > > > > > > [ 50.637839][ T154] ============================================================================= > > > > [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten > > > > [ 50.641291][ T154] ----------------------------------------------------------------------------- > > > > [ 50.641291][ T154] > > > > [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc > > > > [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 > > > > [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 > > > > [ 50.647411][ T154] __slab_alloc+0x1a/0x22 > > > > [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 > > > > [ 50.649237][ T154] __sdt_alloc+0x258/0x457 > > > > [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 > > > > [ 50.650981][ T154] sched_init_smp+0x30/0xa5 > > > > [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b > > > > [ 50.652767][ T154] kernel_init+0x14/0x127 > > > > [ 50.653594][ T154] ret_from_fork+0x1f/0x30 > > > > [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) > > > > [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 > > > > [ 50.656866][ T154] > > > > [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ > > > > [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. > > > > [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ > > > > [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ > > > > [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 > > > > [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 > > > > [ 50.668694][ T154] Call Trace: > > > > [ 50.669331][ T154] <TASK> > > > > [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d > > > > [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe > > > > [ 50.671436][ T154] check_object+0xdc/0x24d > > > > [ 50.672163][ T154] free_debug_processing+0x98/0x210 > > > > [ 50.673904][ T154] __slab_free+0x46/0x198 > > > > [ 50.675746][ T154] qlist_free_all+0xae/0xde > > > > [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 > > > > [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a > > > > [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 > > > > [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 > > > > [ 50.680938][ T154] getname_flags+0x4b/0x314 > > > > [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c > > > > [ 50.706848][ T154] Disabling lock debugging due to kernel taint > > > > [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc > > > > > > Thanks for the report! > > > > > > From the log it happened when kasan is enabled, and my first guess is > > > the data processing from kmalloc redzone handling had some conflict > > > with kasan's in allocation path (though I tested some kernel config > > > with KASAN enabled) > > > > > > Will study more about kasan and reproduce/debug this. thanks > > > > Cc kansan mail list. > > > > This is really related with KASAN debug, that in free path, some > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > kasan to save free meta info. > > > > The callstack is: > > > > kfree > > slab_free > > slab_free_freelist_hook > > slab_free_hook > > __kasan_slab_free > > ____kasan_slab_free > > kasan_set_free_info > > kasan_set_track > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > tracks: alloc_track and free_track, for x86_64 test platform, most > > of the slabs will reserve space for alloc_track, and reuse the > > 'object' area for free_track. The kasan free_track is 16 bytes > > large, that it will occupy the whole 'kmalloc-16's object area, > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > error is triggered. > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > conflict with kmalloc-redzone which stay in the latter part of > > kmalloc area. > > > > So the solution I can think of is: > > * skip the kmalloc-redzone for kmalloc-16 only, or > > * skip kmalloc-redzone if kasan is enabled, or > > * let kasan reserve the free meta (16 bytes) outside of object > > just like for alloc meta > > /\/\/\ > > Please just not the last option. Memory consumption matters. > > I would do whatever is the simplest, e.g. skip the check for > kmalloc-16 when KASAN is enabled. Thanks for giving the suggestion. I'm fine with all these options, and will also wait for Vlastimil and other developers opinion. > Or does it make sense to prohibit KASAN+SLUB_DEBUG combination? Does > SLUB_DEBUG add anything on top of KASAN? I did a quick glance, seems the KASAN will select SLUB_DEBUG in many cases, as shown in the lib/Kconfig.kasan: config KASAN_GENERIC ... select SLUB_DEBUG if SLUB config KASAN_SW_TAGS ... select SLUB_DEBUG if SLUB Thanks, Feng > > > I don't have way to test kasan's SW/HW tag configuration, which > > is only enabled on arm64 now. And I don't know if there will > > also be some conflict. > > > > Thanks, > > Feng > > > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-01 7:48 ` Feng Tang @ 2022-08-01 8:13 ` Christoph Lameter 0 siblings, 0 replies; 31+ messages in thread From: Christoph Lameter @ 2022-08-01 8:13 UTC (permalink / raw) To: Feng Tang Cc: Dmitry Vyukov, Sang, Oliver, Vlastimil Babka, lkp, LKML, linux-mm, lkp, Andrew Morton, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Mon, 1 Aug 2022, Feng Tang wrote: > > Or does it make sense to prohibit KASAN+SLUB_DEBUG combination? Does > > SLUB_DEBUG add anything on top of KASAN? > > I did a quick glance, seems the KASAN will select SLUB_DEBUG in > many cases, as shown in the lib/Kconfig.kasan: > > config KASAN_GENERIC > ... > select SLUB_DEBUG if SLUB > > config KASAN_SW_TAGS > ... > select SLUB_DEBUG if SLUB SLUB_DEBUG is on by default on all distros. This just means that debugging support is compiled in but not activated. Kasan etc could depend on SLUB_DEBUG. Without SLUB_DEBUG the debugging infrastructure of SLUB that is use by Kasan is not included. If you want to enable debugging on bootup then you need to set SLUB_DEBUG_ON. ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-01 6:21 ` Feng Tang 2022-08-01 7:26 ` Dmitry Vyukov @ 2022-08-01 14:23 ` Vlastimil Babka 2022-08-02 6:54 ` Feng Tang 2022-08-02 6:59 ` Dmitry Vyukov 1 sibling, 2 replies; 31+ messages in thread From: Vlastimil Babka @ 2022-08-01 14:23 UTC (permalink / raw) To: Feng Tang, Sang, Oliver Cc: lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, Dmitry Vyukov, kasan-dev On 8/1/22 08:21, Feng Tang wrote: > On Sun, Jul 31, 2022 at 04:16:53PM +0800, Tang, Feng wrote: >> Hi Oliver, >> >> On Sun, Jul 31, 2022 at 02:53:17PM +0800, Sang, Oliver wrote: >> > >> > >> > Greeting, >> > >> > FYI, we noticed the following commit (built with gcc-11): >> > >> > commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") >> > url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 >> > base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next >> > patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com >> > >> > in testcase: boot >> > >> > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G >> > >> > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): >> > >> > >> > If you fix the issue, kindly add following tag >> > Reported-by: kernel test robot <oliver.sang@intel.com> >> > >> > >> > [ 50.637839][ T154] ============================================================================= >> > [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten >> > [ 50.641291][ T154] ----------------------------------------------------------------------------- >> > [ 50.641291][ T154] >> > [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc >> > [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 >> > [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 >> > [ 50.647411][ T154] __slab_alloc+0x1a/0x22 >> > [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 >> > [ 50.649237][ T154] __sdt_alloc+0x258/0x457 >> > [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 >> > [ 50.650981][ T154] sched_init_smp+0x30/0xa5 >> > [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b >> > [ 50.652767][ T154] kernel_init+0x14/0x127 >> > [ 50.653594][ T154] ret_from_fork+0x1f/0x30 >> > [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) >> > [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 >> > [ 50.656866][ T154] >> > [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ >> > [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. >> > [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ >> > [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ >> > [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 >> > [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 >> > [ 50.668694][ T154] Call Trace: >> > [ 50.669331][ T154] <TASK> >> > [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d >> > [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe >> > [ 50.671436][ T154] check_object+0xdc/0x24d >> > [ 50.672163][ T154] free_debug_processing+0x98/0x210 >> > [ 50.673904][ T154] __slab_free+0x46/0x198 >> > [ 50.675746][ T154] qlist_free_all+0xae/0xde >> > [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 >> > [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a >> > [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 >> > [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 >> > [ 50.680938][ T154] getname_flags+0x4b/0x314 >> > [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c >> > [ 50.706848][ T154] Disabling lock debugging due to kernel taint >> > [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc >> >> Thanks for the report! >> >> From the log it happened when kasan is enabled, and my first guess is >> the data processing from kmalloc redzone handling had some conflict >> with kasan's in allocation path (though I tested some kernel config >> with KASAN enabled) >> >> Will study more about kasan and reproduce/debug this. thanks > > Cc kansan mail list. > > This is really related with KASAN debug, that in free path, some > kmalloc redzone ([orig_size+1, object_size]) area is written by > kasan to save free meta info. > > The callstack is: > > kfree > slab_free > slab_free_freelist_hook > slab_free_hook > __kasan_slab_free > ____kasan_slab_free > kasan_set_free_info > kasan_set_track > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > tracks: alloc_track and free_track, for x86_64 test platform, most > of the slabs will reserve space for alloc_track, and reuse the > 'object' area for free_track. The kasan free_track is 16 bytes > large, that it will occupy the whole 'kmalloc-16's object area, > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > error is triggered. > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > conflict with kmalloc-redzone which stay in the latter part of > kmalloc area. > > So the solution I can think of is: > * skip the kmalloc-redzone for kmalloc-16 only, or > * skip kmalloc-redzone if kasan is enabled, or > * let kasan reserve the free meta (16 bytes) outside of object > just like for alloc meta Maybe we could add some hack that if both kasan and SLAB_STORE_USER is enabled, we bump the stored orig_size from <16 to 16? Similar to what __ksize() does. > I don't have way to test kasan's SW/HW tag configuration, which > is only enabled on arm64 now. And I don't know if there will > also be some conflict. > > Thanks, > Feng > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-01 14:23 ` Vlastimil Babka @ 2022-08-02 6:54 ` Feng Tang 2022-08-02 7:06 ` Dmitry Vyukov 2022-08-02 6:59 ` Dmitry Vyukov 1 sibling, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-02 6:54 UTC (permalink / raw) To: Vlastimil Babka Cc: Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, Dmitry Vyukov, kasan-dev On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > On 8/1/22 08:21, Feng Tang wrote: [snip] > > Cc kansan mail list. > > > > This is really related with KASAN debug, that in free path, some > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > kasan to save free meta info. > > > > The callstack is: > > > > kfree > > slab_free > > slab_free_freelist_hook > > slab_free_hook > > __kasan_slab_free > > ____kasan_slab_free > > kasan_set_free_info > > kasan_set_track > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > tracks: alloc_track and free_track, for x86_64 test platform, most > > of the slabs will reserve space for alloc_track, and reuse the > > 'object' area for free_track. The kasan free_track is 16 bytes > > large, that it will occupy the whole 'kmalloc-16's object area, > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > error is triggered. > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > conflict with kmalloc-redzone which stay in the latter part of > > kmalloc area. > > > > So the solution I can think of is: > > * skip the kmalloc-redzone for kmalloc-16 only, or > > * skip kmalloc-redzone if kasan is enabled, or > > * let kasan reserve the free meta (16 bytes) outside of object > > just like for alloc meta > > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > enabled, we bump the stored orig_size from <16 to 16? Similar to what > __ksize() does. How about the following patch: --- diff --git a/mm/slub.c b/mm/slub.c index added2653bb0..33bbac2afaef 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, if (!slub_debug_orig_size(s)) return; +#ifdef CONFIG_KASAN + /* + * When kasan is enabled, it could save its free meta data in the + * start part of object area, so skip the kmalloc redzone check + * for small kmalloc slabs to avoid the data conflict. + */ + if (s->object_size <= 32) + orig_size = s->object_size; +#endif + p += get_info_end(s); p += sizeof(struct track) * 2; I extend the size to 32 for potential's kasan meta data size increase. This is tested locally, if people are OK with it, I can ask for 0Day's help to verify this. Thanks, Feng > > > I don't have way to test kasan's SW/HW tag configuration, which > > is only enabled on arm64 now. And I don't know if there will > > also be some conflict. > > > > Thanks, > > Feng > > > ^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 6:54 ` Feng Tang @ 2022-08-02 7:06 ` Dmitry Vyukov 2022-08-02 7:46 ` Feng Tang 2022-08-02 9:43 ` Vlastimil Babka 0 siblings, 2 replies; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-02 7:06 UTC (permalink / raw) To: Feng Tang Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > > On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > On 8/1/22 08:21, Feng Tang wrote: > [snip] > > > Cc kansan mail list. > > > > > > This is really related with KASAN debug, that in free path, some > > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > kasan to save free meta info. > > > > > > The callstack is: > > > > > > kfree > > > slab_free > > > slab_free_freelist_hook > > > slab_free_hook > > > __kasan_slab_free > > > ____kasan_slab_free > > > kasan_set_free_info > > > kasan_set_track > > > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > of the slabs will reserve space for alloc_track, and reuse the > > > 'object' area for free_track. The kasan free_track is 16 bytes > > > large, that it will occupy the whole 'kmalloc-16's object area, > > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > error is triggered. > > > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > conflict with kmalloc-redzone which stay in the latter part of > > > kmalloc area. > > > > > > So the solution I can think of is: > > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > * skip kmalloc-redzone if kasan is enabled, or > > > * let kasan reserve the free meta (16 bytes) outside of object > > > just like for alloc meta > > > > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > __ksize() does. > > How about the following patch: > > --- > diff --git a/mm/slub.c b/mm/slub.c > index added2653bb0..33bbac2afaef 100644 > --- a/mm/slub.c > +++ b/mm/slub.c > @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > if (!slub_debug_orig_size(s)) > return; > > +#ifdef CONFIG_KASAN > + /* > + * When kasan is enabled, it could save its free meta data in the > + * start part of object area, so skip the kmalloc redzone check > + * for small kmalloc slabs to avoid the data conflict. > + */ > + if (s->object_size <= 32) > + orig_size = s->object_size; > +#endif > + > p += get_info_end(s); > p += sizeof(struct track) * 2; > > I extend the size to 32 for potential's kasan meta data size increase. > This is tested locally, if people are OK with it, I can ask for 0Day's > help to verify this. Where is set_orig_size() function defined? Don't see it upstream nor in linux-next. This looks fine but my only concern is that this should not increase memory consumption when slub debug tracking is not enabled, which should be the main operation mode when KASAN is enabled. But I can't figure this out w/o context. > Thanks, > Feng > > > > > > I don't have way to test kasan's SW/HW tag configuration, which > > > is only enabled on arm64 now. And I don't know if there will > > > also be some conflict. > > > > > > Thanks, > > > Feng > > > > > > > -- > You received this message because you are subscribed to the Google Groups "kasan-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/YujKCxu2lJJFm73P%40feng-skl. ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 7:06 ` Dmitry Vyukov @ 2022-08-02 7:46 ` Feng Tang 2022-08-02 7:59 ` Dmitry Vyukov 2022-08-02 9:43 ` Vlastimil Babka 1 sibling, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-02 7:46 UTC (permalink / raw) To: Dmitry Vyukov Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, Aug 02, 2022 at 03:06:41PM +0800, Dmitry Vyukov wrote: > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > > > > On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > > On 8/1/22 08:21, Feng Tang wrote: > > [snip] > > > > Cc kansan mail list. > > > > > > > > This is really related with KASAN debug, that in free path, some > > > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > > kasan to save free meta info. > > > > > > > > The callstack is: > > > > > > > > kfree > > > > slab_free > > > > slab_free_freelist_hook > > > > slab_free_hook > > > > __kasan_slab_free > > > > ____kasan_slab_free > > > > kasan_set_free_info > > > > kasan_set_track > > > > > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > > of the slabs will reserve space for alloc_track, and reuse the > > > > 'object' area for free_track. The kasan free_track is 16 bytes > > > > large, that it will occupy the whole 'kmalloc-16's object area, > > > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > > error is triggered. > > > > > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > > conflict with kmalloc-redzone which stay in the latter part of > > > > kmalloc area. > > > > > > > > So the solution I can think of is: > > > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > > * skip kmalloc-redzone if kasan is enabled, or > > > > * let kasan reserve the free meta (16 bytes) outside of object > > > > just like for alloc meta > > > > > > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > > __ksize() does. > > > > How about the following patch: > > > > --- > > diff --git a/mm/slub.c b/mm/slub.c > > index added2653bb0..33bbac2afaef 100644 > > --- a/mm/slub.c > > +++ b/mm/slub.c > > @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > if (!slub_debug_orig_size(s)) > > return; > > > > +#ifdef CONFIG_KASAN > > + /* > > + * When kasan is enabled, it could save its free meta data in the > > + * start part of object area, so skip the kmalloc redzone check > > + * for small kmalloc slabs to avoid the data conflict. > > + */ > > + if (s->object_size <= 32) > > + orig_size = s->object_size; > > +#endif > > + > > p += get_info_end(s); > > p += sizeof(struct track) * 2; > > > > I extend the size to 32 for potential's kasan meta data size increase. > > This is tested locally, if people are OK with it, I can ask for 0Day's > > help to verify this. > > Where is set_orig_size() function defined? Don't see it upstream nor > in linux-next. > This looks fine but my only concern is that this should not increase > memory consumption when slub debug tracking is not enabled, which > should be the main operation mode when KASAN is enabled. But I can't > figure this out w/o context. Yes, the patchset was only posted on LKML, and not in any tree now. The link to the original patches is: https://lore.kernel.org/lkml/20220727071042.8796-1-feng.tang@intel.com/t/ Thanks, Feng ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 7:46 ` Feng Tang @ 2022-08-02 7:59 ` Dmitry Vyukov 2022-08-02 8:44 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-02 7:59 UTC (permalink / raw) To: Feng Tang Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, 2 Aug 2022 at 09:47, Feng Tang <feng.tang@intel.com> wrote: > > > On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > > > On 8/1/22 08:21, Feng Tang wrote: > > > [snip] > > > > > Cc kansan mail list. > > > > > > > > > > This is really related with KASAN debug, that in free path, some > > > > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > > > kasan to save free meta info. > > > > > > > > > > The callstack is: > > > > > > > > > > kfree > > > > > slab_free > > > > > slab_free_freelist_hook > > > > > slab_free_hook > > > > > __kasan_slab_free > > > > > ____kasan_slab_free > > > > > kasan_set_free_info > > > > > kasan_set_track > > > > > > > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > > > of the slabs will reserve space for alloc_track, and reuse the > > > > > 'object' area for free_track. The kasan free_track is 16 bytes > > > > > large, that it will occupy the whole 'kmalloc-16's object area, > > > > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > > > error is triggered. > > > > > > > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > > > conflict with kmalloc-redzone which stay in the latter part of > > > > > kmalloc area. > > > > > > > > > > So the solution I can think of is: > > > > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > > > * skip kmalloc-redzone if kasan is enabled, or > > > > > * let kasan reserve the free meta (16 bytes) outside of object > > > > > just like for alloc meta > > > > > > > > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > > > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > > > __ksize() does. > > > > > > How about the following patch: > > > > > > --- > > > diff --git a/mm/slub.c b/mm/slub.c > > > index added2653bb0..33bbac2afaef 100644 > > > --- a/mm/slub.c > > > +++ b/mm/slub.c > > > @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > > if (!slub_debug_orig_size(s)) > > > return; > > > > > > +#ifdef CONFIG_KASAN > > > + /* > > > + * When kasan is enabled, it could save its free meta data in the > > > + * start part of object area, so skip the kmalloc redzone check > > > + * for small kmalloc slabs to avoid the data conflict. > > > + */ > > > + if (s->object_size <= 32) > > > + orig_size = s->object_size; > > > +#endif I think this can be done only when CONFIG_KASAN_GENERIC. Only CONFIG_KASAN_GENERIC stores free meta info in objects: https://elixir.bootlin.com/linux/latest/source/mm/kasan/common.c#L176 And KASAN_HW_TAGS has chances of being enabled with DEBUG_SLUB in real-world uses (with Arm MTE). > > > + > > > p += get_info_end(s); > > > p += sizeof(struct track) * 2; > > > > > > I extend the size to 32 for potential's kasan meta data size increase. > > > This is tested locally, if people are OK with it, I can ask for 0Day's > > > help to verify this. > > > > Where is set_orig_size() function defined? Don't see it upstream nor > > in linux-next. > > This looks fine but my only concern is that this should not increase > > memory consumption when slub debug tracking is not enabled, which > > should be the main operation mode when KASAN is enabled. But I can't > > figure this out w/o context. > > Yes, the patchset was only posted on LKML, and not in any tree now. > The link to the original patches is: > > https://lore.kernel.org/lkml/20220727071042.8796-1-feng.tang@intel.com/t/ Lots of code... This SLAB_STORE_USER seems to be set on all kmalloc slabs by default when CONFIG_SLUB_DEBUG is enabled, right? And KASAN enables CONFIG_SLUB_DEBUG, this means that this is stored always when KASAN is enabled? Looks wrong. ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 7:59 ` Dmitry Vyukov @ 2022-08-02 8:44 ` Feng Tang 0 siblings, 0 replies; 31+ messages in thread From: Feng Tang @ 2022-08-02 8:44 UTC (permalink / raw) To: Dmitry Vyukov Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, Aug 02, 2022 at 03:59:00PM +0800, Dmitry Vyukov wrote: > On Tue, 2 Aug 2022 at 09:47, Feng Tang <feng.tang@intel.com> wrote: > > > > On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > > > > On 8/1/22 08:21, Feng Tang wrote: > > > > [snip] > > > > > > Cc kansan mail list. > > > > > > > > > > > > This is really related with KASAN debug, that in free path, some > > > > > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > > > > kasan to save free meta info. > > > > > > > > > > > > The callstack is: > > > > > > > > > > > > kfree > > > > > > slab_free > > > > > > slab_free_freelist_hook > > > > > > slab_free_hook > > > > > > __kasan_slab_free > > > > > > ____kasan_slab_free > > > > > > kasan_set_free_info > > > > > > kasan_set_track > > > > > > > > > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > > > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > > > > of the slabs will reserve space for alloc_track, and reuse the > > > > > > 'object' area for free_track. The kasan free_track is 16 bytes > > > > > > large, that it will occupy the whole 'kmalloc-16's object area, > > > > > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > > > > error is triggered. > > > > > > > > > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > > > > conflict with kmalloc-redzone which stay in the latter part of > > > > > > kmalloc area. > > > > > > > > > > > > So the solution I can think of is: > > > > > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > > > > * skip kmalloc-redzone if kasan is enabled, or > > > > > > * let kasan reserve the free meta (16 bytes) outside of object > > > > > > just like for alloc meta > > > > > > > > > > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > > > > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > > > > __ksize() does. > > > > > > > > How about the following patch: > > > > > > > > --- > > > > diff --git a/mm/slub.c b/mm/slub.c > > > > index added2653bb0..33bbac2afaef 100644 > > > > --- a/mm/slub.c > > > > +++ b/mm/slub.c > > > > @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > > > if (!slub_debug_orig_size(s)) > > > > return; > > > > > > > > +#ifdef CONFIG_KASAN > > > > + /* > > > > + * When kasan is enabled, it could save its free meta data in the > > > > + * start part of object area, so skip the kmalloc redzone check > > > > + * for small kmalloc slabs to avoid the data conflict. > > > > + */ > > > > + if (s->object_size <= 32) > > > > + orig_size = s->object_size; > > > > +#endif > > I think this can be done only when CONFIG_KASAN_GENERIC. > Only CONFIG_KASAN_GENERIC stores free meta info in objects: > https://elixir.bootlin.com/linux/latest/source/mm/kasan/common.c#L176 Thanks for the catch! will change. > And KASAN_HW_TAGS has chances of being enabled with DEBUG_SLUB in > real-world uses (with Arm MTE). I only have device to test the kasan-generic mode, and not SW/HW tag. But if there is conflict, we may have to apply the similar solution :) > > > > > + > > > > p += get_info_end(s); > > > > p += sizeof(struct track) * 2; > > > > > > > > I extend the size to 32 for potential's kasan meta data size increase. > > > > This is tested locally, if people are OK with it, I can ask for 0Day's > > > > help to verify this. > > > > > > Where is set_orig_size() function defined? Don't see it upstream nor > > > in linux-next. > > > This looks fine but my only concern is that this should not increase > > > memory consumption when slub debug tracking is not enabled, which > > > should be the main operation mode when KASAN is enabled. But I can't > > > figure this out w/o context. > > > > Yes, the patchset was only posted on LKML, and not in any tree now. > > The link to the original patches is: > > > > https://lore.kernel.org/lkml/20220727071042.8796-1-feng.tang@intel.com/t/ > > Lots of code... > > This SLAB_STORE_USER seems to be set on all kmalloc slabs by default > when CONFIG_SLUB_DEBUG is enabled, right? Christoph has explained in one earlier mail that CONFIG_SLUB_DEBUG only compile in the debug support but not activate it. Option CONFIG_SLUB_DEBUG_ON will enable it, and each slub debug flag bits can also be enabled by changing kernel cmdline for some or all slabs. > And KASAN enables CONFIG_SLUB_DEBUG, this means that this is stored > always when KASAN is enabled? Looks wrong. Thanks, Feng ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 7:06 ` Dmitry Vyukov 2022-08-02 7:46 ` Feng Tang @ 2022-08-02 9:43 ` Vlastimil Babka 2022-08-02 10:30 ` Dmitry Vyukov 2022-08-02 10:31 ` Dmitry Vyukov 1 sibling, 2 replies; 31+ messages in thread From: Vlastimil Babka @ 2022-08-02 9:43 UTC (permalink / raw) To: Dmitry Vyukov, Feng Tang Cc: Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On 8/2/22 09:06, Dmitry Vyukov wrote: > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: >> >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: >> > On 8/1/22 08:21, Feng Tang wrote: >> [snip] >> > > Cc kansan mail list. >> > > >> > > This is really related with KASAN debug, that in free path, some >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by >> > > kasan to save free meta info. >> > > >> > > The callstack is: >> > > >> > > kfree >> > > slab_free >> > > slab_free_freelist_hook >> > > slab_free_hook >> > > __kasan_slab_free >> > > ____kasan_slab_free >> > > kasan_set_free_info >> > > kasan_set_track >> > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 >> > > tracks: alloc_track and free_track, for x86_64 test platform, most >> > > of the slabs will reserve space for alloc_track, and reuse the >> > > 'object' area for free_track. The kasan free_track is 16 bytes >> > > large, that it will occupy the whole 'kmalloc-16's object area, >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' >> > > error is triggered. >> > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't >> > > conflict with kmalloc-redzone which stay in the latter part of >> > > kmalloc area. >> > > >> > > So the solution I can think of is: >> > > * skip the kmalloc-redzone for kmalloc-16 only, or >> > > * skip kmalloc-redzone if kasan is enabled, or >> > > * let kasan reserve the free meta (16 bytes) outside of object >> > > just like for alloc meta >> > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what >> > __ksize() does. >> >> How about the following patch: >> >> --- >> diff --git a/mm/slub.c b/mm/slub.c >> index added2653bb0..33bbac2afaef 100644 >> --- a/mm/slub.c >> +++ b/mm/slub.c >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, >> if (!slub_debug_orig_size(s)) >> return; >> >> +#ifdef CONFIG_KASAN >> + /* >> + * When kasan is enabled, it could save its free meta data in the >> + * start part of object area, so skip the kmalloc redzone check >> + * for small kmalloc slabs to avoid the data conflict. >> + */ >> + if (s->object_size <= 32) >> + orig_size = s->object_size; >> +#endif >> + >> p += get_info_end(s); >> p += sizeof(struct track) * 2; >> >> I extend the size to 32 for potential's kasan meta data size increase. >> This is tested locally, if people are OK with it, I can ask for 0Day's >> help to verify this. Is there maybe some KASAN macro we can use instead of hardcoding 32? > > Where is set_orig_size() function defined? Don't see it upstream nor > in linux-next. > This looks fine but my only concern is that this should not increase > memory consumption when slub debug tracking is not enabled, which > should be the main operation mode when KASAN is enabled. But I can't > figure this out w/o context. It won't increase memory consumption even if slub_debug tracking is enabled. It just fakes a bit the size that was passed to kmalloc() and which we newly store (thanks to Feng's patches) for statistics and debugging purposes. >> Thanks, >> Feng >> >> > >> > > I don't have way to test kasan's SW/HW tag configuration, which >> > > is only enabled on arm64 now. And I don't know if there will >> > > also be some conflict. >> > > >> > > Thanks, >> > > Feng >> > > >> > >> >> -- >> You received this message because you are subscribed to the Google Groups "kasan-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. >> To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/YujKCxu2lJJFm73P%40feng-skl. ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 9:43 ` Vlastimil Babka @ 2022-08-02 10:30 ` Dmitry Vyukov 2022-08-02 13:36 ` Feng Tang 2022-08-02 10:31 ` Dmitry Vyukov 1 sibling, 1 reply; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-02 10:30 UTC (permalink / raw) To: Vlastimil Babka Cc: Feng Tang, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev .On Tue, 2 Aug 2022 at 11:43, Vlastimil Babka <vbabka@suse.cz> wrote: > > On 8/2/22 09:06, Dmitry Vyukov wrote: > > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > >> > >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > >> > On 8/1/22 08:21, Feng Tang wrote: > >> [snip] > >> > > Cc kansan mail list. > >> > > > >> > > This is really related with KASAN debug, that in free path, some > >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by > >> > > kasan to save free meta info. > >> > > > >> > > The callstack is: > >> > > > >> > > kfree > >> > > slab_free > >> > > slab_free_freelist_hook > >> > > slab_free_hook > >> > > __kasan_slab_free > >> > > ____kasan_slab_free > >> > > kasan_set_free_info > >> > > kasan_set_track > >> > > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > >> > > tracks: alloc_track and free_track, for x86_64 test platform, most > >> > > of the slabs will reserve space for alloc_track, and reuse the > >> > > 'object' area for free_track. The kasan free_track is 16 bytes > >> > > large, that it will occupy the whole 'kmalloc-16's object area, > >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > >> > > error is triggered. > >> > > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > >> > > conflict with kmalloc-redzone which stay in the latter part of > >> > > kmalloc area. > >> > > > >> > > So the solution I can think of is: > >> > > * skip the kmalloc-redzone for kmalloc-16 only, or > >> > > * skip kmalloc-redzone if kasan is enabled, or > >> > > * let kasan reserve the free meta (16 bytes) outside of object > >> > > just like for alloc meta > >> > > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what > >> > __ksize() does. > >> > >> How about the following patch: > >> > >> --- > >> diff --git a/mm/slub.c b/mm/slub.c > >> index added2653bb0..33bbac2afaef 100644 > >> --- a/mm/slub.c > >> +++ b/mm/slub.c > >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > >> if (!slub_debug_orig_size(s)) > >> return; > >> > >> +#ifdef CONFIG_KASAN > >> + /* > >> + * When kasan is enabled, it could save its free meta data in the > >> + * start part of object area, so skip the kmalloc redzone check > >> + * for small kmalloc slabs to avoid the data conflict. > >> + */ > >> + if (s->object_size <= 32) > >> + orig_size = s->object_size; > >> +#endif > >> + > >> p += get_info_end(s); > >> p += sizeof(struct track) * 2; > >> > >> I extend the size to 32 for potential's kasan meta data size increase. > >> This is tested locally, if people are OK with it, I can ask for 0Day's > >> help to verify this. > > Is there maybe some KASAN macro we can use instead of hardcoding 32? kasan_free_meta is placed in the object data after freeing, so it can be sizeof(kasan_free_meta) > > Where is set_orig_size() function defined? Don't see it upstream nor > > in linux-next. > > This looks fine but my only concern is that this should not increase > > memory consumption when slub debug tracking is not enabled, which > > should be the main operation mode when KASAN is enabled. But I can't > > figure this out w/o context. > > It won't increase memory consumption even if slub_debug tracking is enabled. > It just fakes a bit the size that was passed to kmalloc() and which we newly > store (thanks to Feng's patches) for statistics and debugging purposes. > > >> Thanks, > >> Feng > >> > >> > > >> > > I don't have way to test kasan's SW/HW tag configuration, which > >> > > is only enabled on arm64 now. And I don't know if there will > >> > > also be some conflict. > >> > > > >> > > Thanks, > >> > > Feng > >> > > > >> > > >> > >> -- > >> You received this message because you are subscribed to the Google Groups "kasan-dev" group. > >> To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. > >> To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/YujKCxu2lJJFm73P%40feng-skl. > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 10:30 ` Dmitry Vyukov @ 2022-08-02 13:36 ` Feng Tang 2022-08-02 14:38 ` Dmitry Vyukov 0 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-02 13:36 UTC (permalink / raw) To: Dmitry Vyukov Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, Aug 02, 2022 at 06:30:44PM +0800, Dmitry Vyukov wrote: > .On Tue, 2 Aug 2022 at 11:43, Vlastimil Babka <vbabka@suse.cz> wrote: > > > > On 8/2/22 09:06, Dmitry Vyukov wrote: > > > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > > >> > > >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > >> > On 8/1/22 08:21, Feng Tang wrote: > > >> [snip] > > >> > > Cc kansan mail list. > > >> > > > > >> > > This is really related with KASAN debug, that in free path, some > > >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > >> > > kasan to save free meta info. > > >> > > > > >> > > The callstack is: > > >> > > > > >> > > kfree > > >> > > slab_free > > >> > > slab_free_freelist_hook > > >> > > slab_free_hook > > >> > > __kasan_slab_free > > >> > > ____kasan_slab_free > > >> > > kasan_set_free_info > > >> > > kasan_set_track > > >> > > > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > >> > > tracks: alloc_track and free_track, for x86_64 test platform, most > > >> > > of the slabs will reserve space for alloc_track, and reuse the > > >> > > 'object' area for free_track. The kasan free_track is 16 bytes > > >> > > large, that it will occupy the whole 'kmalloc-16's object area, > > >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > >> > > error is triggered. > > >> > > > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > >> > > conflict with kmalloc-redzone which stay in the latter part of > > >> > > kmalloc area. > > >> > > > > >> > > So the solution I can think of is: > > >> > > * skip the kmalloc-redzone for kmalloc-16 only, or > > >> > > * skip kmalloc-redzone if kasan is enabled, or > > >> > > * let kasan reserve the free meta (16 bytes) outside of object > > >> > > just like for alloc meta > > >> > > > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > >> > __ksize() does. > > >> > > >> How about the following patch: > > >> > > >> --- > > >> diff --git a/mm/slub.c b/mm/slub.c > > >> index added2653bb0..33bbac2afaef 100644 > > >> --- a/mm/slub.c > > >> +++ b/mm/slub.c > > >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > >> if (!slub_debug_orig_size(s)) > > >> return; > > >> > > >> +#ifdef CONFIG_KASAN > > >> + /* > > >> + * When kasan is enabled, it could save its free meta data in the > > >> + * start part of object area, so skip the kmalloc redzone check > > >> + * for small kmalloc slabs to avoid the data conflict. > > >> + */ > > >> + if (s->object_size <= 32) > > >> + orig_size = s->object_size; > > >> +#endif > > >> + > > >> p += get_info_end(s); > > >> p += sizeof(struct track) * 2; > > >> > > >> I extend the size to 32 for potential's kasan meta data size increase. > > >> This is tested locally, if people are OK with it, I can ask for 0Day's > > >> help to verify this. > > > > Is there maybe some KASAN macro we can use instead of hardcoding 32? > > kasan_free_meta is placed in the object data after freeing, so it can > be sizeof(kasan_free_meta) 'kasan_free_meta' is defined in mm/kasan/kasan.h, to use it we need to include "../kasan/kasan.h" in slub.c, or move its definition to "include/linux/kasan.h" Another idea is to save the info in kasan_info, like: --- diff --git a/include/linux/kasan.h b/include/linux/kasan.h index b092277bf48d..97e899948d0b 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -100,6 +100,7 @@ static inline bool kasan_has_integrated_init(void) struct kasan_cache { int alloc_meta_offset; int free_meta_offset; + int free_meta_size; bool is_kmalloc; }; diff --git a/mm/kasan/common.c b/mm/kasan/common.c index c40c0e7b3b5f..7bd82c5ec264 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -178,6 +178,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, return; } + cache->kasan_info.free_meta_size = sizeof(struct free_meta_offset); + /* * Add free meta into redzone when it's not possible to store * it in the object. This is the case when: Thanks, Feng ^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 13:36 ` Feng Tang @ 2022-08-02 14:38 ` Dmitry Vyukov 2022-08-04 6:28 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-02 14:38 UTC (permalink / raw) To: Feng Tang Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, 2 Aug 2022 at 15:37, Feng Tang <feng.tang@intel.com> wrote: > > On Tue, Aug 02, 2022 at 06:30:44PM +0800, Dmitry Vyukov wrote: > > .On Tue, 2 Aug 2022 at 11:43, Vlastimil Babka <vbabka@suse.cz> wrote: > > > > > > On 8/2/22 09:06, Dmitry Vyukov wrote: > > > > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > > > >> > > > >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > > >> > On 8/1/22 08:21, Feng Tang wrote: > > > >> [snip] > > > >> > > Cc kansan mail list. > > > >> > > > > > >> > > This is really related with KASAN debug, that in free path, some > > > >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > >> > > kasan to save free meta info. > > > >> > > > > > >> > > The callstack is: > > > >> > > > > > >> > > kfree > > > >> > > slab_free > > > >> > > slab_free_freelist_hook > > > >> > > slab_free_hook > > > >> > > __kasan_slab_free > > > >> > > ____kasan_slab_free > > > >> > > kasan_set_free_info > > > >> > > kasan_set_track > > > >> > > > > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > >> > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > >> > > of the slabs will reserve space for alloc_track, and reuse the > > > >> > > 'object' area for free_track. The kasan free_track is 16 bytes > > > >> > > large, that it will occupy the whole 'kmalloc-16's object area, > > > >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > >> > > error is triggered. > > > >> > > > > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > >> > > conflict with kmalloc-redzone which stay in the latter part of > > > >> > > kmalloc area. > > > >> > > > > > >> > > So the solution I can think of is: > > > >> > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > >> > > * skip kmalloc-redzone if kasan is enabled, or > > > >> > > * let kasan reserve the free meta (16 bytes) outside of object > > > >> > > just like for alloc meta > > > >> > > > > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > > >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > > >> > __ksize() does. > > > >> > > > >> How about the following patch: > > > >> > > > >> --- > > > >> diff --git a/mm/slub.c b/mm/slub.c > > > >> index added2653bb0..33bbac2afaef 100644 > > > >> --- a/mm/slub.c > > > >> +++ b/mm/slub.c > > > >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > > >> if (!slub_debug_orig_size(s)) > > > >> return; > > > >> > > > >> +#ifdef CONFIG_KASAN > > > >> + /* > > > >> + * When kasan is enabled, it could save its free meta data in the > > > >> + * start part of object area, so skip the kmalloc redzone check > > > >> + * for small kmalloc slabs to avoid the data conflict. > > > >> + */ > > > >> + if (s->object_size <= 32) > > > >> + orig_size = s->object_size; > > > >> +#endif > > > >> + > > > >> p += get_info_end(s); > > > >> p += sizeof(struct track) * 2; > > > >> > > > >> I extend the size to 32 for potential's kasan meta data size increase. > > > >> This is tested locally, if people are OK with it, I can ask for 0Day's > > > >> help to verify this. > > > > > > Is there maybe some KASAN macro we can use instead of hardcoding 32? > > > > kasan_free_meta is placed in the object data after freeing, so it can > > be sizeof(kasan_free_meta) > > 'kasan_free_meta' is defined in mm/kasan/kasan.h, to use it we need to > include "../kasan/kasan.h" in slub.c, or move its definition to > "include/linux/kasan.h" > > Another idea is to save the info in kasan_info, like: > > --- > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > index b092277bf48d..97e899948d0b 100644 > --- a/include/linux/kasan.h > +++ b/include/linux/kasan.h > @@ -100,6 +100,7 @@ static inline bool kasan_has_integrated_init(void) > struct kasan_cache { > int alloc_meta_offset; > int free_meta_offset; > + int free_meta_size; Storing it here looks fine to me. But I would name it based on the meaning for external users (i.e. that many bytes are occupied by kasan in freed objects). For some caches KASAN does not store anything in freed objects at all. > bool is_kmalloc; > }; > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > index c40c0e7b3b5f..7bd82c5ec264 100644 > --- a/mm/kasan/common.c > +++ b/mm/kasan/common.c > @@ -178,6 +178,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > return; > } > > + cache->kasan_info.free_meta_size = sizeof(struct free_meta_offset); > + > /* > * Add free meta into redzone when it's not possible to store > * it in the object. This is the case when: ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 14:38 ` Dmitry Vyukov @ 2022-08-04 6:28 ` Feng Tang 2022-08-04 10:47 ` Dmitry Vyukov 0 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-04 6:28 UTC (permalink / raw) To: Dmitry Vyukov Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, Aug 02, 2022 at 10:38:59PM +0800, Dmitry Vyukov wrote: > On Tue, 2 Aug 2022 at 15:37, Feng Tang <feng.tang@intel.com> wrote: > > > > On Tue, Aug 02, 2022 at 06:30:44PM +0800, Dmitry Vyukov wrote: > > > .On Tue, 2 Aug 2022 at 11:43, Vlastimil Babka <vbabka@suse.cz> wrote: > > > > > > > > On 8/2/22 09:06, Dmitry Vyukov wrote: > > > > > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > > > > >> > > > > >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > > > >> > On 8/1/22 08:21, Feng Tang wrote: > > > > >> [snip] > > > > >> > > Cc kansan mail list. > > > > >> > > > > > > >> > > This is really related with KASAN debug, that in free path, some > > > > >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > > >> > > kasan to save free meta info. > > > > >> > > > > > > >> > > The callstack is: > > > > >> > > > > > > >> > > kfree > > > > >> > > slab_free > > > > >> > > slab_free_freelist_hook > > > > >> > > slab_free_hook > > > > >> > > __kasan_slab_free > > > > >> > > ____kasan_slab_free > > > > >> > > kasan_set_free_info > > > > >> > > kasan_set_track > > > > >> > > > > > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > > >> > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > > >> > > of the slabs will reserve space for alloc_track, and reuse the > > > > >> > > 'object' area for free_track. The kasan free_track is 16 bytes > > > > >> > > large, that it will occupy the whole 'kmalloc-16's object area, > > > > >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > > >> > > error is triggered. > > > > >> > > > > > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > > >> > > conflict with kmalloc-redzone which stay in the latter part of > > > > >> > > kmalloc area. > > > > >> > > > > > > >> > > So the solution I can think of is: > > > > >> > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > > >> > > * skip kmalloc-redzone if kasan is enabled, or > > > > >> > > * let kasan reserve the free meta (16 bytes) outside of object > > > > >> > > just like for alloc meta > > > > >> > > > > > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > > > >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > > > >> > __ksize() does. > > > > >> > > > > >> How about the following patch: > > > > >> > > > > >> --- > > > > >> diff --git a/mm/slub.c b/mm/slub.c > > > > >> index added2653bb0..33bbac2afaef 100644 > > > > >> --- a/mm/slub.c > > > > >> +++ b/mm/slub.c > > > > >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > > > >> if (!slub_debug_orig_size(s)) > > > > >> return; > > > > >> > > > > >> +#ifdef CONFIG_KASAN > > > > >> + /* > > > > >> + * When kasan is enabled, it could save its free meta data in the > > > > >> + * start part of object area, so skip the kmalloc redzone check > > > > >> + * for small kmalloc slabs to avoid the data conflict. > > > > >> + */ > > > > >> + if (s->object_size <= 32) > > > > >> + orig_size = s->object_size; > > > > >> +#endif > > > > >> + > > > > >> p += get_info_end(s); > > > > >> p += sizeof(struct track) * 2; > > > > >> > > > > >> I extend the size to 32 for potential's kasan meta data size increase. > > > > >> This is tested locally, if people are OK with it, I can ask for 0Day's > > > > >> help to verify this. > > > > > > > > Is there maybe some KASAN macro we can use instead of hardcoding 32? > > > > > > kasan_free_meta is placed in the object data after freeing, so it can > > > be sizeof(kasan_free_meta) > > > > 'kasan_free_meta' is defined in mm/kasan/kasan.h, to use it we need to > > include "../kasan/kasan.h" in slub.c, or move its definition to > > "include/linux/kasan.h" > > > > Another idea is to save the info in kasan_info, like: > > > > --- > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > index b092277bf48d..97e899948d0b 100644 > > --- a/include/linux/kasan.h > > +++ b/include/linux/kasan.h > > @@ -100,6 +100,7 @@ static inline bool kasan_has_integrated_init(void) > > struct kasan_cache { > > int alloc_meta_offset; > > int free_meta_offset; > > + int free_meta_size; > > Storing it here looks fine to me. > But I would name it based on the meaning for external users (i.e. that > many bytes are occupied by kasan in freed objects). For some caches > KASAN does not store anything in freed objects at all. OK, please review the below patch, thanks! - Feng ---8<--- From c4fc739ea4d5222f0aba4b42b59668d64a010082 Mon Sep 17 00:00:00 2001 From: Feng Tang <feng.tang@intel.com> Date: Thu, 4 Aug 2022 13:25:35 +0800 Subject: [PATCH] mm: kasan: Add free_meta size info in struct kasan_cache When kasan is enabled for slab/slub, it may save kasan' free_meta data in the former part of slab object data area in slab object free path, which works fine. There is ongoing effort to extend slub's debug function which will redzone the latter part of kmalloc object area, and when both of the debug are enabled, there is possible conflict, especially when the kmalloc object has small size, as caught by 0Day bot [1] For better information for slab/slub, add free_meta's data size info 'kasan_cache', so that its users can take right action to avoid data conflict. [1]. https://lore.kernel.org/lkml/YuYm3dWwpZwH58Hu@xsang-OptiPlex-9020/ Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Feng Tang <feng.tang@intel.com> --- include/linux/kasan.h | 2 ++ mm/kasan/common.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/linux/kasan.h b/include/linux/kasan.h index b092277bf48d..293bdaa0ba09 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) struct kasan_cache { int alloc_meta_offset; int free_meta_offset; + /* size of free_meta data saved in object's data area */ + int free_meta_size_in_object; bool is_kmalloc; }; diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 78be2beb7453..a627efa267d1 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -201,6 +201,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; *size = ok_size; } + } else { + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); } /* Calculate size with optimal redzone. */ -- 2.27.0 ^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-04 6:28 ` Feng Tang @ 2022-08-04 10:47 ` Dmitry Vyukov 2022-08-04 12:22 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-04 10:47 UTC (permalink / raw) To: Feng Tang Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Thu, 4 Aug 2022 at 08:29, Feng Tang <feng.tang@intel.com> wrote: > > > > .On Tue, 2 Aug 2022 at 11:43, Vlastimil Babka <vbabka@suse.cz> wrote: > > > > > > > > > > On 8/2/22 09:06, Dmitry Vyukov wrote: > > > > > > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > > > > > >> > > > > > >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > > > > > >> > On 8/1/22 08:21, Feng Tang wrote: > > > > > >> [snip] > > > > > >> > > Cc kansan mail list. > > > > > >> > > > > > > > >> > > This is really related with KASAN debug, that in free path, some > > > > > >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > > > > >> > > kasan to save free meta info. > > > > > >> > > > > > > > >> > > The callstack is: > > > > > >> > > > > > > > >> > > kfree > > > > > >> > > slab_free > > > > > >> > > slab_free_freelist_hook > > > > > >> > > slab_free_hook > > > > > >> > > __kasan_slab_free > > > > > >> > > ____kasan_slab_free > > > > > >> > > kasan_set_free_info > > > > > >> > > kasan_set_track > > > > > >> > > > > > > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > > > > >> > > tracks: alloc_track and free_track, for x86_64 test platform, most > > > > > >> > > of the slabs will reserve space for alloc_track, and reuse the > > > > > >> > > 'object' area for free_track. The kasan free_track is 16 bytes > > > > > >> > > large, that it will occupy the whole 'kmalloc-16's object area, > > > > > >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > > > > >> > > error is triggered. > > > > > >> > > > > > > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > > > > >> > > conflict with kmalloc-redzone which stay in the latter part of > > > > > >> > > kmalloc area. > > > > > >> > > > > > > > >> > > So the solution I can think of is: > > > > > >> > > * skip the kmalloc-redzone for kmalloc-16 only, or > > > > > >> > > * skip kmalloc-redzone if kasan is enabled, or > > > > > >> > > * let kasan reserve the free meta (16 bytes) outside of object > > > > > >> > > just like for alloc meta > > > > > >> > > > > > > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > > > > > >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what > > > > > >> > __ksize() does. > > > > > >> > > > > > >> How about the following patch: > > > > > >> > > > > > >> --- > > > > > >> diff --git a/mm/slub.c b/mm/slub.c > > > > > >> index added2653bb0..33bbac2afaef 100644 > > > > > >> --- a/mm/slub.c > > > > > >> +++ b/mm/slub.c > > > > > >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > > > > >> if (!slub_debug_orig_size(s)) > > > > > >> return; > > > > > >> > > > > > >> +#ifdef CONFIG_KASAN > > > > > >> + /* > > > > > >> + * When kasan is enabled, it could save its free meta data in the > > > > > >> + * start part of object area, so skip the kmalloc redzone check > > > > > >> + * for small kmalloc slabs to avoid the data conflict. > > > > > >> + */ > > > > > >> + if (s->object_size <= 32) > > > > > >> + orig_size = s->object_size; > > > > > >> +#endif > > > > > >> + > > > > > >> p += get_info_end(s); > > > > > >> p += sizeof(struct track) * 2; > > > > > >> > > > > > >> I extend the size to 32 for potential's kasan meta data size increase. > > > > > >> This is tested locally, if people are OK with it, I can ask for 0Day's > > > > > >> help to verify this. > > > > > > > > > > Is there maybe some KASAN macro we can use instead of hardcoding 32? > > > > > > > > kasan_free_meta is placed in the object data after freeing, so it can > > > > be sizeof(kasan_free_meta) > > > > > > 'kasan_free_meta' is defined in mm/kasan/kasan.h, to use it we need to > > > include "../kasan/kasan.h" in slub.c, or move its definition to > > > "include/linux/kasan.h" > > > > > > Another idea is to save the info in kasan_info, like: > > > > > > --- > > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > > index b092277bf48d..97e899948d0b 100644 > > > --- a/include/linux/kasan.h > > > +++ b/include/linux/kasan.h > > > @@ -100,6 +100,7 @@ static inline bool kasan_has_integrated_init(void) > > > struct kasan_cache { > > > int alloc_meta_offset; > > > int free_meta_offset; > > > + int free_meta_size; > > > > Storing it here looks fine to me. > > But I would name it based on the meaning for external users (i.e. that > > many bytes are occupied by kasan in freed objects). For some caches > > KASAN does not store anything in freed objects at all. > > OK, please review the below patch, thanks! > > - Feng > > ---8<--- > From c4fc739ea4d5222f0aba4b42b59668d64a010082 Mon Sep 17 00:00:00 2001 > From: Feng Tang <feng.tang@intel.com> > Date: Thu, 4 Aug 2022 13:25:35 +0800 > Subject: [PATCH] mm: kasan: Add free_meta size info in struct kasan_cache > > When kasan is enabled for slab/slub, it may save kasan' free_meta > data in the former part of slab object data area in slab object > free path, which works fine. > > There is ongoing effort to extend slub's debug function which will > redzone the latter part of kmalloc object area, and when both of > the debug are enabled, there is possible conflict, especially when > the kmalloc object has small size, as caught by 0Day bot [1] > > For better information for slab/slub, add free_meta's data size > info 'kasan_cache', so that its users can take right action to > avoid data conflict. > > [1]. https://lore.kernel.org/lkml/YuYm3dWwpZwH58Hu@xsang-OptiPlex-9020/ > Reported-by: kernel test robot <oliver.sang@intel.com> > Signed-off-by: Feng Tang <feng.tang@intel.com> Acked-by: Dmitry Vyukov <dvyukov@google.com> I assume there will be a second patch that uses free_meta_size_in_object in slub debug code. > --- > include/linux/kasan.h | 2 ++ > mm/kasan/common.c | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > index b092277bf48d..293bdaa0ba09 100644 > --- a/include/linux/kasan.h > +++ b/include/linux/kasan.h > @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) > struct kasan_cache { > int alloc_meta_offset; > int free_meta_offset; > + /* size of free_meta data saved in object's data area */ > + int free_meta_size_in_object; > bool is_kmalloc; > }; > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > index 78be2beb7453..a627efa267d1 100644 > --- a/mm/kasan/common.c > +++ b/mm/kasan/common.c > @@ -201,6 +201,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; > *size = ok_size; > } > + } else { > + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); > } > > /* Calculate size with optimal redzone. */ > -- > 2.27.0 ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-04 10:47 ` Dmitry Vyukov @ 2022-08-04 12:22 ` Feng Tang 2022-08-15 7:27 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-04 12:22 UTC (permalink / raw) To: Dmitry Vyukov Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Thu, Aug 04, 2022 at 06:47:58PM +0800, Dmitry Vyukov wrote: > On Thu, 4 Aug 2022 at 08:29, Feng Tang <feng.tang@intel.com> wrote: [...] > > > > ---8<--- > > From c4fc739ea4d5222f0aba4b42b59668d64a010082 Mon Sep 17 00:00:00 2001 > > From: Feng Tang <feng.tang@intel.com> > > Date: Thu, 4 Aug 2022 13:25:35 +0800 > > Subject: [PATCH] mm: kasan: Add free_meta size info in struct kasan_cache > > > > When kasan is enabled for slab/slub, it may save kasan' free_meta > > data in the former part of slab object data area in slab object > > free path, which works fine. > > > > There is ongoing effort to extend slub's debug function which will > > redzone the latter part of kmalloc object area, and when both of > > the debug are enabled, there is possible conflict, especially when > > the kmalloc object has small size, as caught by 0Day bot [1] > > > > For better information for slab/slub, add free_meta's data size > > info 'kasan_cache', so that its users can take right action to > > avoid data conflict. > > > > [1]. https://lore.kernel.org/lkml/YuYm3dWwpZwH58Hu@xsang-OptiPlex-9020/ > > Reported-by: kernel test robot <oliver.sang@intel.com> > > Signed-off-by: Feng Tang <feng.tang@intel.com> > > Acked-by: Dmitry Vyukov <dvyukov@google.com> Thanks for your suggestion and review! > I assume there will be a second patch that uses > free_meta_size_in_object in slub debug code. Yes, it will be called in the slub kmalloc object redzone debug code. Thanks, Feng > > --- > > include/linux/kasan.h | 2 ++ > > mm/kasan/common.c | 2 ++ > > 2 files changed, 4 insertions(+) > > > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > index b092277bf48d..293bdaa0ba09 100644 > > --- a/include/linux/kasan.h > > +++ b/include/linux/kasan.h > > @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) > > struct kasan_cache { > > int alloc_meta_offset; > > int free_meta_offset; > > + /* size of free_meta data saved in object's data area */ > > + int free_meta_size_in_object; > > bool is_kmalloc; > > }; > > > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > > index 78be2beb7453..a627efa267d1 100644 > > --- a/mm/kasan/common.c > > +++ b/mm/kasan/common.c > > @@ -201,6 +201,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > > cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; > > *size = ok_size; > > } > > + } else { > > + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); > > } > > > > /* Calculate size with optimal redzone. */ > > -- > > 2.27.0 > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-04 12:22 ` Feng Tang @ 2022-08-15 7:27 ` Feng Tang 2022-08-16 13:27 ` Oliver Sang 0 siblings, 1 reply; 31+ messages in thread From: Feng Tang @ 2022-08-15 7:27 UTC (permalink / raw) To: Dmitry Vyukov, Sang, Oliver Cc: Vlastimil Babka, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev Hi Oliver, Could you help to check if the below combined patch fix the problem you reported? thanks! - Feng --- diff --git a/include/linux/kasan.h b/include/linux/kasan.h index b092277bf48d6..293bdaa0ba09c 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) struct kasan_cache { int alloc_meta_offset; int free_meta_offset; + /* size of free_meta data saved in object's data area */ + int free_meta_size_in_object; bool is_kmalloc; }; diff --git a/mm/kasan/common.c b/mm/kasan/common.c index c40c0e7b3b5f1..9d2994dbe4e7a 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -200,6 +200,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; *size = ok_size; } + } else { + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); } /* Calculate size with optimal redzone. */ diff --git a/mm/slub.c b/mm/slub.c index added2653bb03..272dcdbaaa03b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, if (!slub_debug_orig_size(s)) return; +#ifdef CONFIG_KASAN_GENERIC + /* + * kasn could save its free meta data in the start part of object + * area, so skip the redzone check if kasan's meta data size is + * bigger enough to possibly overlap with kmalloc redzone + */ + if (s->kasan_info.free_meta_size_in_object * 2 > s->object_size) + orig_size = s->object_size; +#endif + p += get_info_end(s); p += sizeof(struct track) * 2; On Thu, Aug 04, 2022 at 08:22:31PM +0800, Tang, Feng wrote: > On Thu, Aug 04, 2022 at 06:47:58PM +0800, Dmitry Vyukov wrote: > > On Thu, 4 Aug 2022 at 08:29, Feng Tang <feng.tang@intel.com> wrote: > [...] > > > > > > ---8<--- > > > From c4fc739ea4d5222f0aba4b42b59668d64a010082 Mon Sep 17 00:00:00 2001 > > > From: Feng Tang <feng.tang@intel.com> > > > Date: Thu, 4 Aug 2022 13:25:35 +0800 > > > Subject: [PATCH] mm: kasan: Add free_meta size info in struct kasan_cache > > > > > > When kasan is enabled for slab/slub, it may save kasan' free_meta > > > data in the former part of slab object data area in slab object > > > free path, which works fine. > > > > > > There is ongoing effort to extend slub's debug function which will > > > redzone the latter part of kmalloc object area, and when both of > > > the debug are enabled, there is possible conflict, especially when > > > the kmalloc object has small size, as caught by 0Day bot [1] > > > > > > For better information for slab/slub, add free_meta's data size > > > info 'kasan_cache', so that its users can take right action to > > > avoid data conflict. > > > > > > [1]. https://lore.kernel.org/lkml/YuYm3dWwpZwH58Hu@xsang-OptiPlex-9020/ > > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > Signed-off-by: Feng Tang <feng.tang@intel.com> > > > > Acked-by: Dmitry Vyukov <dvyukov@google.com> > > Thanks for your suggestion and review! > > > I assume there will be a second patch that uses > > free_meta_size_in_object in slub debug code. > > Yes, it will be called in the slub kmalloc object redzone debug code. > > Thanks, > Feng > > > > --- > > > include/linux/kasan.h | 2 ++ > > > mm/kasan/common.c | 2 ++ > > > 2 files changed, 4 insertions(+) > > > > > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > > index b092277bf48d..293bdaa0ba09 100644 > > > --- a/include/linux/kasan.h > > > +++ b/include/linux/kasan.h > > > @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) > > > struct kasan_cache { > > > int alloc_meta_offset; > > > int free_meta_offset; > > > + /* size of free_meta data saved in object's data area */ > > > + int free_meta_size_in_object; > > > bool is_kmalloc; > > > }; > > > > > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > > > index 78be2beb7453..a627efa267d1 100644 > > > --- a/mm/kasan/common.c > > > +++ b/mm/kasan/common.c > > > @@ -201,6 +201,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > > > cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; > > > *size = ok_size; > > > } > > > + } else { > > > + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); > > > } > > > > > > /* Calculate size with optimal redzone. */ > > > -- > > > 2.27.0 > > ^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-15 7:27 ` Feng Tang @ 2022-08-16 13:27 ` Oliver Sang 2022-08-16 14:12 ` Feng Tang 0 siblings, 1 reply; 31+ messages in thread From: Oliver Sang @ 2022-08-16 13:27 UTC (permalink / raw) To: Feng Tang Cc: Dmitry Vyukov, Vlastimil Babka, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev Hi Feng, On Mon, Aug 15, 2022 at 03:27:43PM +0800, Feng Tang wrote: > Hi Oliver, > > Could you help to check if the below combined patch fix the problem > you reported? thanks! I applied below patch upon 3616799128: 28b34693c816e9 (linux-devel/fixup-3616799128) fix for 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 3616799128612e (linux-review/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318) mm/slub: extend redzone check to cover extra allocated kmalloc space than requested acc77d62f91ccc mm/slub: only zero the requested size of buffer for kzalloc confirmed the issue gone: ========================================================================================= compiler/kconfig/rootfs/sleep/tbox_group/testcase: gcc-11/x86_64-randconfig-a005-20220117/debian-11.1-x86_64-20220510.cgz/300/vm-snb/boot acc77d62f91ccca2 3616799128612e04ed919579e2c 28b34693c816e9fcbe42bdd341e ---------------- --------------------------- --------------------------- fail:runs %reproduction fail:runs %reproduction fail:runs | | | | | :20 95% 19:20 0% :22 dmesg.BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten :20 95% 19:20 0% :22 dmesg.BUG_kmalloc-#(Tainted:G_B):kmalloc_Redzone_overwritten > > - Feng > > --- > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > index b092277bf48d6..293bdaa0ba09c 100644 > --- a/include/linux/kasan.h > +++ b/include/linux/kasan.h > @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) > struct kasan_cache { > int alloc_meta_offset; > int free_meta_offset; > + /* size of free_meta data saved in object's data area */ > + int free_meta_size_in_object; > bool is_kmalloc; > }; > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > index c40c0e7b3b5f1..9d2994dbe4e7a 100644 > --- a/mm/kasan/common.c > +++ b/mm/kasan/common.c > @@ -200,6 +200,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; > *size = ok_size; > } > + } else { > + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); > } > > /* Calculate size with optimal redzone. */ > diff --git a/mm/slub.c b/mm/slub.c > index added2653bb03..272dcdbaaa03b 100644 > --- a/mm/slub.c > +++ b/mm/slub.c > @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > if (!slub_debug_orig_size(s)) > return; > > +#ifdef CONFIG_KASAN_GENERIC > + /* > + * kasn could save its free meta data in the start part of object > + * area, so skip the redzone check if kasan's meta data size is > + * bigger enough to possibly overlap with kmalloc redzone > + */ > + if (s->kasan_info.free_meta_size_in_object * 2 > s->object_size) > + orig_size = s->object_size; > +#endif > + > p += get_info_end(s); > p += sizeof(struct track) * 2; > > On Thu, Aug 04, 2022 at 08:22:31PM +0800, Tang, Feng wrote: > > On Thu, Aug 04, 2022 at 06:47:58PM +0800, Dmitry Vyukov wrote: > > > On Thu, 4 Aug 2022 at 08:29, Feng Tang <feng.tang@intel.com> wrote: > > [...] > > > > > > > > ---8<--- > > > > From c4fc739ea4d5222f0aba4b42b59668d64a010082 Mon Sep 17 00:00:00 2001 > > > > From: Feng Tang <feng.tang@intel.com> > > > > Date: Thu, 4 Aug 2022 13:25:35 +0800 > > > > Subject: [PATCH] mm: kasan: Add free_meta size info in struct kasan_cache > > > > > > > > When kasan is enabled for slab/slub, it may save kasan' free_meta > > > > data in the former part of slab object data area in slab object > > > > free path, which works fine. > > > > > > > > There is ongoing effort to extend slub's debug function which will > > > > redzone the latter part of kmalloc object area, and when both of > > > > the debug are enabled, there is possible conflict, especially when > > > > the kmalloc object has small size, as caught by 0Day bot [1] > > > > > > > > For better information for slab/slub, add free_meta's data size > > > > info 'kasan_cache', so that its users can take right action to > > > > avoid data conflict. > > > > > > > > [1]. https://lore.kernel.org/lkml/YuYm3dWwpZwH58Hu@xsang-OptiPlex-9020/ > > > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > > Signed-off-by: Feng Tang <feng.tang@intel.com> > > > > > > Acked-by: Dmitry Vyukov <dvyukov@google.com> > > > > Thanks for your suggestion and review! > > > > > I assume there will be a second patch that uses > > > free_meta_size_in_object in slub debug code. > > > > Yes, it will be called in the slub kmalloc object redzone debug code. > > > > Thanks, > > Feng > > > > > > --- > > > > include/linux/kasan.h | 2 ++ > > > > mm/kasan/common.c | 2 ++ > > > > 2 files changed, 4 insertions(+) > > > > > > > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > > > index b092277bf48d..293bdaa0ba09 100644 > > > > --- a/include/linux/kasan.h > > > > +++ b/include/linux/kasan.h > > > > @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) > > > > struct kasan_cache { > > > > int alloc_meta_offset; > > > > int free_meta_offset; > > > > + /* size of free_meta data saved in object's data area */ > > > > + int free_meta_size_in_object; > > > > bool is_kmalloc; > > > > }; > > > > > > > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > > > > index 78be2beb7453..a627efa267d1 100644 > > > > --- a/mm/kasan/common.c > > > > +++ b/mm/kasan/common.c > > > > @@ -201,6 +201,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > > > > cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; > > > > *size = ok_size; > > > > } > > > > + } else { > > > > + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); > > > > } > > > > > > > > /* Calculate size with optimal redzone. */ > > > > -- > > > > 2.27.0 > > > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-16 13:27 ` Oliver Sang @ 2022-08-16 14:12 ` Feng Tang 0 siblings, 0 replies; 31+ messages in thread From: Feng Tang @ 2022-08-16 14:12 UTC (permalink / raw) To: Sang, Oliver Cc: Dmitry Vyukov, Vlastimil Babka, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, Aug 16, 2022 at 09:27:39PM +0800, Sang, Oliver wrote: > Hi Feng, > > On Mon, Aug 15, 2022 at 03:27:43PM +0800, Feng Tang wrote: > > Hi Oliver, > > > > Could you help to check if the below combined patch fix the problem > > you reported? thanks! > > I applied below patch upon 3616799128: > 28b34693c816e9 (linux-devel/fixup-3616799128) fix for 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten > 3616799128612e (linux-review/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318) mm/slub: extend redzone check to cover extra allocated kmalloc space than requested > acc77d62f91ccc mm/slub: only zero the requested size of buffer for kzalloc > > > confirmed the issue gone: Many thanks for helping testing! - Feng > ========================================================================================= > compiler/kconfig/rootfs/sleep/tbox_group/testcase: > gcc-11/x86_64-randconfig-a005-20220117/debian-11.1-x86_64-20220510.cgz/300/vm-snb/boot > > > acc77d62f91ccca2 3616799128612e04ed919579e2c 28b34693c816e9fcbe42bdd341e > ---------------- --------------------------- --------------------------- > fail:runs %reproduction fail:runs %reproduction fail:runs > | | | | | > :20 95% 19:20 0% :22 dmesg.BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten > :20 95% 19:20 0% :22 dmesg.BUG_kmalloc-#(Tainted:G_B):kmalloc_Redzone_overwritten > > > > > > > - Feng > > > > --- > > > > diff --git a/include/linux/kasan.h b/include/linux/kasan.h > > index b092277bf48d6..293bdaa0ba09c 100644 > > --- a/include/linux/kasan.h > > +++ b/include/linux/kasan.h > > @@ -100,6 +100,8 @@ static inline bool kasan_has_integrated_init(void) > > struct kasan_cache { > > int alloc_meta_offset; > > int free_meta_offset; > > + /* size of free_meta data saved in object's data area */ > > + int free_meta_size_in_object; > > bool is_kmalloc; > > }; > > > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > > index c40c0e7b3b5f1..9d2994dbe4e7a 100644 > > --- a/mm/kasan/common.c > > +++ b/mm/kasan/common.c > > @@ -200,6 +200,8 @@ void __kasan_cache_create(struct kmem_cache *cache, unsigned int *size, > > cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META; > > *size = ok_size; > > } > > + } else { > > + cache->kasan_info.free_meta_size_in_object = sizeof(struct kasan_free_meta); > > } > > > > /* Calculate size with optimal redzone. */ > > diff --git a/mm/slub.c b/mm/slub.c > > index added2653bb03..272dcdbaaa03b 100644 > > --- a/mm/slub.c > > +++ b/mm/slub.c > > @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > > if (!slub_debug_orig_size(s)) > > return; > > > > +#ifdef CONFIG_KASAN_GENERIC > > + /* > > + * kasn could save its free meta data in the start part of object > > + * area, so skip the redzone check if kasan's meta data size is > > + * bigger enough to possibly overlap with kmalloc redzone > > + */ > > + if (s->kasan_info.free_meta_size_in_object * 2 > s->object_size) > > + orig_size = s->object_size; > > +#endif > > + > > p += get_info_end(s); > > p += sizeof(struct track) * 2; > > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-02 9:43 ` Vlastimil Babka 2022-08-02 10:30 ` Dmitry Vyukov @ 2022-08-02 10:31 ` Dmitry Vyukov 1 sibling, 0 replies; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-02 10:31 UTC (permalink / raw) To: Vlastimil Babka Cc: Feng Tang, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Tue, 2 Aug 2022 at 11:43, Vlastimil Babka <vbabka@suse.cz> wrote: > > On 8/2/22 09:06, Dmitry Vyukov wrote: > > On Tue, 2 Aug 2022 at 08:55, Feng Tang <feng.tang@intel.com> wrote: > >> > >> On Mon, Aug 01, 2022 at 10:23:23PM +0800, Vlastimil Babka wrote: > >> > On 8/1/22 08:21, Feng Tang wrote: > >> [snip] > >> > > Cc kansan mail list. > >> > > > >> > > This is really related with KASAN debug, that in free path, some > >> > > kmalloc redzone ([orig_size+1, object_size]) area is written by > >> > > kasan to save free meta info. > >> > > > >> > > The callstack is: > >> > > > >> > > kfree > >> > > slab_free > >> > > slab_free_freelist_hook > >> > > slab_free_hook > >> > > __kasan_slab_free > >> > > ____kasan_slab_free > >> > > kasan_set_free_info > >> > > kasan_set_track > >> > > > >> > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > >> > > tracks: alloc_track and free_track, for x86_64 test platform, most > >> > > of the slabs will reserve space for alloc_track, and reuse the > >> > > 'object' area for free_track. The kasan free_track is 16 bytes > >> > > large, that it will occupy the whole 'kmalloc-16's object area, > >> > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > >> > > error is triggered. > >> > > > >> > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > >> > > conflict with kmalloc-redzone which stay in the latter part of > >> > > kmalloc area. > >> > > > >> > > So the solution I can think of is: > >> > > * skip the kmalloc-redzone for kmalloc-16 only, or > >> > > * skip kmalloc-redzone if kasan is enabled, or > >> > > * let kasan reserve the free meta (16 bytes) outside of object > >> > > just like for alloc meta > >> > > >> > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > >> > enabled, we bump the stored orig_size from <16 to 16? Similar to what > >> > __ksize() does. > >> > >> How about the following patch: > >> > >> --- > >> diff --git a/mm/slub.c b/mm/slub.c > >> index added2653bb0..33bbac2afaef 100644 > >> --- a/mm/slub.c > >> +++ b/mm/slub.c > >> @@ -830,6 +830,16 @@ static inline void set_orig_size(struct kmem_cache *s, > >> if (!slub_debug_orig_size(s)) > >> return; > >> > >> +#ifdef CONFIG_KASAN > >> + /* > >> + * When kasan is enabled, it could save its free meta data in the > >> + * start part of object area, so skip the kmalloc redzone check > >> + * for small kmalloc slabs to avoid the data conflict. > >> + */ > >> + if (s->object_size <= 32) > >> + orig_size = s->object_size; > >> +#endif > >> + > >> p += get_info_end(s); > >> p += sizeof(struct track) * 2; > >> > >> I extend the size to 32 for potential's kasan meta data size increase. > >> This is tested locally, if people are OK with it, I can ask for 0Day's > >> help to verify this. > > Is there maybe some KASAN macro we can use instead of hardcoding 32? > > > > > Where is set_orig_size() function defined? Don't see it upstream nor > > in linux-next. > > This looks fine but my only concern is that this should not increase > > memory consumption when slub debug tracking is not enabled, which > > should be the main operation mode when KASAN is enabled. But I can't > > figure this out w/o context. > > It won't increase memory consumption even if slub_debug tracking is enabled. > It just fakes a bit the size that was passed to kmalloc() and which we newly > store (thanks to Feng's patches) for statistics and debugging purposes. Then it looks good to me. Thanks for double checking. > >> Thanks, > >> Feng > >> > >> > > >> > > I don't have way to test kasan's SW/HW tag configuration, which > >> > > is only enabled on arm64 now. And I don't know if there will > >> > > also be some conflict. > >> > > > >> > > Thanks, > >> > > Feng > >> > > > >> > > >> > >> -- > >> You received this message because you are subscribed to the Google Groups "kasan-dev" group. > >> To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. > >> To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/YujKCxu2lJJFm73P%40feng-skl. > ^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten 2022-08-01 14:23 ` Vlastimil Babka 2022-08-02 6:54 ` Feng Tang @ 2022-08-02 6:59 ` Dmitry Vyukov 1 sibling, 0 replies; 31+ messages in thread From: Dmitry Vyukov @ 2022-08-02 6:59 UTC (permalink / raw) To: Vlastimil Babka Cc: Feng Tang, Sang, Oliver, lkp, LKML, linux-mm, lkp, Andrew Morton, Christoph Lameter, Pekka Enberg, David Rientjes, Joonsoo Kim, Roman Gushchin, Hyeonggon Yoo, Hansen, Dave, Robin Murphy, John Garry, Kefeng Wang, Andrey Konovalov, Andrey Ryabinin, Alexander Potapenko, kasan-dev On Mon, 1 Aug 2022 at 16:23, Vlastimil Babka <vbabka@suse.cz> wrote: > > On 8/1/22 08:21, Feng Tang wrote: > > On Sun, Jul 31, 2022 at 04:16:53PM +0800, Tang, Feng wrote: > >> Hi Oliver, > >> > >> On Sun, Jul 31, 2022 at 02:53:17PM +0800, Sang, Oliver wrote: > >> > > >> > > >> > Greeting, > >> > > >> > FYI, we noticed the following commit (built with gcc-11): > >> > > >> > commit: 3616799128612e04ed919579e2c7b0dccf6bcb00 ("[PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested") > >> > url: https://github.com/intel-lab-lkp/linux/commits/Feng-Tang/mm-slub-some-debug-enhancements/20220727-151318 > >> > base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next > >> > patch link: https://lore.kernel.org/linux-mm/20220727071042.8796-4-feng.tang@intel.com > >> > > >> > in testcase: boot > >> > > >> > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > >> > > >> > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > >> > > >> > > >> > If you fix the issue, kindly add following tag > >> > Reported-by: kernel test robot <oliver.sang@intel.com> > >> > > >> > > >> > [ 50.637839][ T154] ============================================================================= > >> > [ 50.639937][ T154] BUG kmalloc-16 (Not tainted): kmalloc Redzone overwritten > >> > [ 50.641291][ T154] ----------------------------------------------------------------------------- > >> > [ 50.641291][ T154] > >> > [ 50.643617][ T154] 0xffff88810018464c-0xffff88810018464f @offset=1612. First byte 0x7 instead of 0xcc > >> > [ 50.645311][ T154] Allocated in __sdt_alloc+0x258/0x457 age=14287 cpu=0 pid=1 > >> > [ 50.646584][ T154] ___slab_alloc+0x52b/0x5b6 > >> > [ 50.647411][ T154] __slab_alloc+0x1a/0x22 > >> > [ 50.648374][ T154] __kmalloc_node+0x10c/0x1e1 > >> > [ 50.649237][ T154] __sdt_alloc+0x258/0x457 > >> > [ 50.650060][ T154] build_sched_domains+0xae/0x10e8 > >> > [ 50.650981][ T154] sched_init_smp+0x30/0xa5 > >> > [ 50.651805][ T154] kernel_init_freeable+0x1c6/0x23b > >> > [ 50.652767][ T154] kernel_init+0x14/0x127 > >> > [ 50.653594][ T154] ret_from_fork+0x1f/0x30 > >> > [ 50.654414][ T154] Slab 0xffffea0004006100 objects=28 used=28 fp=0x0000000000000000 flags=0x1fffc0000000201(locked|slab|node=0|zone=1|lastcpupid=0x3fff) > >> > [ 50.656866][ T154] Object 0xffff888100184640 @offset=1600 fp=0xffff888100184520 > >> > [ 50.656866][ T154] > >> > [ 50.658410][ T154] Redzone ffff888100184630: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ > >> > [ 50.660047][ T154] Object ffff888100184640: 00 32 80 00 81 88 ff ff 01 00 00 00 07 00 80 8a .2.............. > >> > [ 50.661837][ T154] Redzone ffff888100184650: cc cc cc cc cc cc cc cc ........ > >> > [ 50.663454][ T154] Padding ffff8881001846b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ > >> > [ 50.665225][ T154] CPU: 0 PID: 154 Comm: systemd-udevd Not tainted 5.19.0-rc5-00010-g361679912861 #1 > >> > [ 50.666861][ T154] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 > >> > [ 50.668694][ T154] Call Trace: > >> > [ 50.669331][ T154] <TASK> > >> > [ 50.669832][ T154] dump_stack_lvl+0x57/0x7d > >> > [ 50.670601][ T154] check_bytes_and_report+0xca/0xfe > >> > [ 50.671436][ T154] check_object+0xdc/0x24d > >> > [ 50.672163][ T154] free_debug_processing+0x98/0x210 > >> > [ 50.673904][ T154] __slab_free+0x46/0x198 > >> > [ 50.675746][ T154] qlist_free_all+0xae/0xde > >> > [ 50.676552][ T154] kasan_quarantine_reduce+0x10d/0x145 > >> > [ 50.677507][ T154] __kasan_slab_alloc+0x1c/0x5a > >> > [ 50.678327][ T154] slab_post_alloc_hook+0x5a/0xa2 > >> > [ 50.680069][ T154] kmem_cache_alloc+0x102/0x135 > >> > [ 50.680938][ T154] getname_flags+0x4b/0x314 > >> > [ 50.681781][ T154] do_sys_openat2+0x7a/0x15c > >> > [ 50.706848][ T154] Disabling lock debugging due to kernel taint > >> > [ 50.707913][ T154] FIX kmalloc-16: Restoring kmalloc Redzone 0xffff88810018464c-0xffff88810018464f=0xcc > >> > >> Thanks for the report! > >> > >> From the log it happened when kasan is enabled, and my first guess is > >> the data processing from kmalloc redzone handling had some conflict > >> with kasan's in allocation path (though I tested some kernel config > >> with KASAN enabled) > >> > >> Will study more about kasan and reproduce/debug this. thanks > > > > Cc kansan mail list. > > > > This is really related with KASAN debug, that in free path, some > > kmalloc redzone ([orig_size+1, object_size]) area is written by > > kasan to save free meta info. > > > > The callstack is: > > > > kfree > > slab_free > > slab_free_freelist_hook > > slab_free_hook > > __kasan_slab_free > > ____kasan_slab_free > > kasan_set_free_info > > kasan_set_track > > > > And this issue only happens with "kmalloc-16" slab. Kasan has 2 > > tracks: alloc_track and free_track, for x86_64 test platform, most > > of the slabs will reserve space for alloc_track, and reuse the > > 'object' area for free_track. The kasan free_track is 16 bytes > > large, that it will occupy the whole 'kmalloc-16's object area, > > so when kmalloc-redzone is enabled by this patch, the 'overwritten' > > error is triggered. > > > > But it won't hurt other kmalloc slabs, as kasan's free meta won't > > conflict with kmalloc-redzone which stay in the latter part of > > kmalloc area. > > > > So the solution I can think of is: > > * skip the kmalloc-redzone for kmalloc-16 only, or > > * skip kmalloc-redzone if kasan is enabled, or > > * let kasan reserve the free meta (16 bytes) outside of object > > just like for alloc meta > > Maybe we could add some hack that if both kasan and SLAB_STORE_USER is > enabled, we bump the stored orig_size from <16 to 16? Similar to what > __ksize() does. This looks like the simplest workaround. And with a proper comment I think it's fine. > > I don't have way to test kasan's SW/HW tag configuration, which > > is only enabled on arm64 now. And I don't know if there will > > also be some conflict. > > > > Thanks, > > Feng > > > ^ permalink raw reply [flat|nested] 31+ messages in thread
end of thread, other threads:[~2022-08-16 14:13 UTC | newest] Thread overview: 31+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-07-27 7:10 [PATCH v3 0/3] mm/slub: some debug enhancements Feng Tang 2022-07-27 7:10 ` [PATCH v3 1/3] mm/slub: enable debugging memory wasting of kmalloc Feng Tang 2022-07-27 10:20 ` Christoph Lameter 2022-07-27 12:59 ` Feng Tang 2022-07-27 14:12 ` Vlastimil Babka 2022-07-27 7:10 ` [PATCH v3 2/3] mm/slub: only zero the requested size of buffer for kzalloc Feng Tang 2022-07-27 7:10 ` [PATCH v3 3/3] mm/slub: extend redzone check to cover extra allocated kmalloc space than requested Feng Tang 2022-07-31 6:53 ` [mm/slub] 3616799128: BUG_kmalloc-#(Not_tainted):kmalloc_Redzone_overwritten kernel test robot 2022-07-31 8:16 ` Feng Tang 2022-08-01 6:21 ` Feng Tang 2022-08-01 7:26 ` Dmitry Vyukov 2022-08-01 7:48 ` Feng Tang 2022-08-01 8:13 ` Christoph Lameter 2022-08-01 14:23 ` Vlastimil Babka 2022-08-02 6:54 ` Feng Tang 2022-08-02 7:06 ` Dmitry Vyukov 2022-08-02 7:46 ` Feng Tang 2022-08-02 7:59 ` Dmitry Vyukov 2022-08-02 8:44 ` Feng Tang 2022-08-02 9:43 ` Vlastimil Babka 2022-08-02 10:30 ` Dmitry Vyukov 2022-08-02 13:36 ` Feng Tang 2022-08-02 14:38 ` Dmitry Vyukov 2022-08-04 6:28 ` Feng Tang 2022-08-04 10:47 ` Dmitry Vyukov 2022-08-04 12:22 ` Feng Tang 2022-08-15 7:27 ` Feng Tang 2022-08-16 13:27 ` Oliver Sang 2022-08-16 14:12 ` Feng Tang 2022-08-02 10:31 ` Dmitry Vyukov 2022-08-02 6:59 ` Dmitry Vyukov
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