From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Ard Biesheuvel <ardb@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
David Hildenbrand <david@redhat.com>,
Marc Zyngier <maz@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
Mike Rapoport <rppt@linux.ibm.com>,
"Will Deacon" <will@kernel.org>, <kvmarm@lists.cs.columbia.edu>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>
Subject: Re: arm32: panic in move_freepages (Was [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid())
Date: Mon, 26 Apr 2021 23:26:38 +0800 [thread overview]
Message-ID: <2d879629-3059-fd42-428f-4b7c2a73d698@huawei.com> (raw)
In-Reply-To: <YIZNq5HMfJ1rWytv@kernel.org>
On 2021/4/26 13:20, Mike Rapoport wrote:
> On Sun, Apr 25, 2021 at 03:51:56PM +0800, Kefeng Wang wrote:
>> On 2021/4/25 15:19, Mike Rapoport wrote:
>>
>> On Fri, Apr 23, 2021 at 04:11:16PM +0800, Kefeng Wang wrote:
>>
>> I tested this patchset(plus arm32 change, like arm64 does) based on lts
>> 5.10，add
>>
>> some debug log, the useful info shows below, if we enable HOLES_IN_ZONE, no
>> panic,
>>
>> any idea, thanks.
>>
>>
>> Are there any changes on top of 5.10 except for pfn_valid() patch?
>> Do you see this panic on 5.10 without the changes?
>>
>> Yes, there are some BSP support for arm board based on 5.10, with or without
>>
>> your patch will get same panic, the panic pfn=de600 in the range of
>> [dcc00,de00]
>>
>> which is freed by free_memmap, start_pfn = dcc00, dcc00000 end_pfn = de700,
>> de700000
>>
>> we see the PC is at PageLRU, same reason like arm64 panic log,
>>
>> "PageBuddy in move_freepages returns false
>> Then we call PageLRU, the macro calls PF_HEAD which is compound_page()
>> compound_page reads page->compound_head, it is 0xffffffffffffffff, so it
>> resturns 0xfffffffffffffffe - and accessing this address causes crash"
>>
>> Can you see stack backtrace beyond move_freepages_block?
>>
>> I do some oom test, so the log is about memory allocate,
>>
>> [<c02383c8>] (move_freepages_block) from [<c0238668>]
>> (steal_suitable_fallback+0x174/0x1f4)
>>
>> [<c0238668>] (steal_suitable_fallback) from [<c023999c>] (get_page_from_freelist+0x490/0x9a4)
> Hmm, this is called with a page from free list, having a page from a freed
> part of the memory map passed to steal_suitable_fallback() means that there
> is an issue with creation of the free list.
>
> Can you please add "memblock=debug" to the kernel command line and post the
> log?
Here is the log,
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=1ac5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt: Machine model: HISI-CA9
memblock_add: [0x80a00000-0x855fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x86a00000-0x87dfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x8bd00000-0x8c4fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x8e300000-0x8ecfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x90d00000-0xbfffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xcc000000-0xdc9fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xe0800000-0xe0bfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf5300000-0xf5bfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf5c00000-0xf6ffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfe100000-0xfebfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfec00000-0xffffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xde700000-0xde9fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf4b00000-0xf52fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfda00000-0xfe0fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_reserve: [0x80a01000-0x80a02d2e] setup_arch+0x68/0x5c4
Malformed early option 'vecpage_wrprotect'
Memory policy: Data cache writealloc
memblock_reserve: [0x80b00000-0x812e8057] arm_memblock_init+0x34/0x14c
memblock_reserve: [0x83000000-0x84ffffff] arm_memblock_init+0x100/0x14c
memblock_reserve: [0x80a04000-0x80a07fff] arm_memblock_init+0xa0/0x14c
memblock_reserve: [0x80a00000-0x80a02fff] hisi_mem_reserve+0x14/0x30
MEMBLOCK configuration:
memory size = 0x4c0fffff reserved size = 0x027ef058
memory.cnt = 0xa
memory[0x0] [0x80a00000-0x855fffff], 0x04c00000 bytes flags: 0x0
memory[0x1] [0x86a00000-0x87dfffff], 0x01400000 bytes flags: 0x0
memory[0x2] [0x8bd00000-0x8c4fffff], 0x00800000 bytes flags: 0x0
memory[0x3] [0x8e300000-0x8ecfffff], 0x00a00000 bytes flags: 0x0
memory[0x4] [0x90d00000-0xbfffffff], 0x2f300000 bytes flags: 0x0
memory[0x5] [0xcc000000-0xdc9fffff], 0x10a00000 bytes flags: 0x0
memory[0x6] [0xde700000-0xde9fffff], 0x00300000 bytes flags: 0x0
memory[0x7] [0xe0800000-0xe0bfffff], 0x00400000 bytes flags: 0x0
memory[0x8] [0xf4b00000-0xf6ffffff], 0x02500000 bytes flags: 0x0
memory[0x9] [0xfda00000-0xfffffffe], 0x025fffff bytes flags: 0x0
reserved.cnt = 0x4
reserved[0x0] [0x80a00000-0x80a02fff], 0x00003000 bytes flags: 0x0
reserved[0x1] [0x80a04000-0x80a07fff], 0x00004000 bytes flags: 0x0
reserved[0x2] [0x80b00000-0x812e8057], 0x007e8058 bytes flags: 0x0
reserved[0x3] [0x83000000-0x84ffffff], 0x02000000 bytes flags: 0x0
memblock_alloc_try_nid: 2097152 bytes align=0x200000 nid=-1
from=0x00000000 max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xb0000000-0xb01fffff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xaffff000-0xafffffff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 40 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 iotable_init+0x34/0xf0
memblock_reserve: [0xafffefd8-0xafffefff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffd000-0xafffdfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffc000-0xafffcfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffb000-0xafffbfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffa000-0xafffafff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 384 bytes align=0x20 nid=0 from=0x00000000
max_addr=0x00000000 sparse_init_nid+0x34/0x1d8
memblock_reserve: [0xafffee40-0xafffefbf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_exact_nid_raw: 12582912 bytes align=0x80000 nid=0
from=0xc09fffff max_addr=0x00000000 sparse_init_nid+0xec/0x1d8
memblock_reserve: [0xaf380000-0xaff7ffff]
memblock_alloc_range_nid+0x104/0x13c
Zone ranges:
Normal [mem 0x0000000080a00000-0x00000000b01fffff]
HighMem [mem 0x00000000b0200000-0x00000000ffffefff]
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000080a00000-0x00000000855fffff]
node 0: [mem 0x0000000086a00000-0x0000000087dfffff]
node 0: [mem 0x000000008bd00000-0x000000008c4fffff]
node 0: [mem 0x000000008e300000-0x000000008ecfffff]
node 0: [mem 0x0000000090d00000-0x00000000bfffffff]
node 0: [mem 0x00000000cc000000-0x00000000dc9fffff]
node 0: [mem 0x00000000de700000-0x00000000de9fffff]
node 0: [mem 0x00000000e0800000-0x00000000e0bfffff]
node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff]
node 0: [mem 0x00000000fda00000-0x00000000ffffefff]
Zeroed struct page in unavailable ranges: 513 pages
Initmem setup node 0 [mem 0x0000000080a00000-0x00000000ffffefff]
On node 0 totalpages: 311551
Normal zone: 1230 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 157440 pages, LIFO batch:31
HighMem zone: 154111 pages, LIFO batch:31
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffee20-0xafffee3f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffee00-0xafffee1f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffede0-0xafffedff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffedc0-0xafffeddf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffeda0-0xafffedbf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed80-0xafffed9f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed60-0xafffed7f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed40-0xafffed5f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed20-0xafffed3f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed00-0xafffed1f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 22396 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 early_init_dt_alloc_memory_arch+0x30/0x64
memblock_reserve: [0xafff4884-0xafff9fff]
memblock_alloc_range_nid+0x104/0x13c
[dts]:cpu type is 1380
memblock_alloc_try_nid: 404 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc.constprop.8+0x1c/0x24
memblock_reserve: [0xafffeb60-0xafffecf3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 404 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc.constprop.8+0x1c/0x24
memblock_reserve: [0xafffe9c0-0xafffeb53]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff3000-0xafff3fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff2000-0xafff2fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 278528 bytes align=0x1000 nid=-1 from=0xc09fffff
max_addr=0x00000000 pcpu_dfl_fc_alloc+0x28/0x34
memblock_reserve: [0xaffae000-0xafff1fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_free: [0xaffbf000-0xaffbefff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xaffd0000-0xaffcffff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xaffe1000-0xaffe0fff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xafff2000-0xafff1fff] pcpu_embed_first_chunk+0x5ec/0x6a8
percpu: Embedded 17 pages/cpu s37044 r8192 d24396 u69632
memblock_alloc_try_nid: 4 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffefc0-0xafffefc3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe9a0-0xafffe9a3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 16 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe980-0xafffe98f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 16 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe960-0xafffe96f]
memblock_alloc_range_nid+0x104/0x13c
pcpu-alloc: s37044 r8192 d24396 u69632 alloc=17*4096
pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
memblock_alloc_try_nid: 128 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe8e0-0xafffe95f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 92 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe880-0xafffe8db]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 384 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe700-0xafffe87f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 388 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe560-0xafffe6e3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 96 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe500-0xafffe55f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 92 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe4a0-0xafffe4fb]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 768 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe1a0-0xafffe49f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 772 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff4580-0xafff4883]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 192 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe0e0-0xafffe19f]
memblock_alloc_range_nid+0x104/0x13c
memblock_free: [0xafff3000-0xafff3fff] pcpu_embed_first_chunk+0x570/0x6a8
memblock_free: [0xafff2000-0xafff2fff] pcpu_embed_first_chunk+0x58c/0x6a8
Built 1 zonelists, mobility grouping on. Total pages: 310321
Kernel command line: console=ttyAMA0,9600n8N lpj=8000000
initrd=0x83000000,0x2000000 maxcpus=4 master_cpu=1 quiet highres=off
oops=panic vecpage_wrprotect ksm=1 ramdisk_size=30720 kmemleak=off
min_loop=128 lockd.nlm_tcpport=13001 lockd.nlm_udpport=13001
rdinit=/sbin/init root=/dev/ram0 vmalloc=256M
printk: log_buf_len individual max cpu contribution: 4096 bytes
printk: log_buf_len total cpu_extra contributions: 12288 bytes
printk: log_buf_len min size: 16384 bytes
memblock_alloc_try_nid: 32768 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0xe4/0x404
memblock_reserve: [0xaffa6000-0xaffadfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 12288 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0x130/0x404
memblock_reserve: [0xaffa3000-0xaffa5fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 90112 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0x180/0x404
memblock_reserve: [0xaff8d000-0xaffa2fff]
memblock_alloc_range_nid+0x104/0x13c
printk: log_buf_len: 32768 bytes
printk: early log buf free: 2492(15%)
memblock_alloc_try_nid: 524288 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 alloc_large_system_hash+0x1b0/0x2e8
memblock_reserve: [0xaf300000-0xaf37ffff]
memblock_alloc_range_nid+0x104/0x13c
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
memblock_alloc_try_nid: 262144 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 alloc_large_system_hash+0x1b0/0x2e8
memblock_reserve: [0xaf2c0000-0xaf2fffff]
memblock_alloc_range_nid+0x104/0x13c
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
memblock_free: [0xaf430000-0xaf453fff] mem_init+0x154/0x238
memblock_free: [0xaf510000-0xaf545fff] mem_init+0x154/0x238
memblock_free: [0xaf560000-0xaf57ffff] mem_init+0x154/0x238
memblock_free: [0xafd98000-0xafdcdfff] mem_init+0x154/0x238
memblock_free: [0xafdd8000-0xafdfffff] mem_init+0x154/0x238
memblock_free: [0xafe18000-0xafe7ffff] mem_init+0x154/0x238
memblock_free: [0xafee0000-0xafefffff] mem_init+0x154/0x238
Memory: 1191160K/1246204K available (4096K kernel code, 436K rwdata,
1120K rodata, 1024K init, 491K bss, 55044K reserved, 0K cma-reserved,
616444K highmem)
>> [<c023999c>] (get_page_from_freelist) from [<c023a4dc>] (__alloc_pages_nodemask+0x188/0xc08)
>> [<c023a4dc>] (__alloc_pages_nodemask) from [<c0223078>] (alloc_zeroed_user_highpage_movable+0x14/0x3c)
>> [<c0223078>] (alloc_zeroed_user_highpage_movable) from [<c0226768>] (handle_mm_fault+0x254/0xac8)
>> [<c0226768>] (handle_mm_fault) from [<c04ba09c>] (do_page_fault+0x228/0x2f4)
>> [<c04ba09c>] (do_page_fault) from [<c0111d80>] (do_DataAbort+0x48/0xd0)
>> [<c0111d80>] (do_DataAbort) from [<c0100e00>] (__dabt_usr+0x40/0x60)
>>
>>
>>
>> Zone ranges:
>> Normal [mem 0x0000000080a00000-0x00000000b01fffff]
>> HighMem [mem 0x00000000b0200000-0x00000000ffffefff]
>> Movable zone start for each node
>> Early memory node ranges
>> node 0: [mem 0x0000000080a00000-0x00000000855fffff]
>> node 0: [mem 0x0000000086a00000-0x0000000087dfffff]
>> node 0: [mem 0x000000008bd00000-0x000000008c4fffff]
>> node 0: [mem 0x000000008e300000-0x000000008ecfffff]
>> node 0: [mem 0x0000000090d00000-0x00000000bfffffff]
>> node 0: [mem 0x00000000cc000000-0x00000000dc9fffff]
>> node 0: [mem 0x00000000de700000-0x00000000de9fffff]
>> node 0: [mem 0x00000000e0800000-0x00000000e0bfffff]
>> node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff]
>> node 0: [mem 0x00000000fda00000-0x00000000ffffefff]
>>
>> ----> free_memmap, start_pfn = 85800, 85800000 end_pfn = 86a00, 86a00000
>> ----> free_memmap, start_pfn = 8c800, 8c800000 end_pfn = 8e300, 8e300000
>> ----> free_memmap, start_pfn = 8f000, 8f000000 end_pfn = 90000, 90000000
>> ----> free_memmap, start_pfn = dcc00, dcc00000 end_pfn = de700, de700000
>> ----> free_memmap, start_pfn = dec00, dec00000 end_pfn = e0000, e0000000
>> ----> free_memmap, start_pfn = e0c00, e0c00000 end_pfn = e4000, e4000000
>> ----> free_memmap, start_pfn = f7000, f7000000 end_pfn = f8000, f8000000
>> === >move_freepages: start_pfn/end_pfn [de601, de7ff], [de600000, de7ff000]
>> : pfn =de600 pfn2phy = de600000 , page = ef3cc000, page-flags = ffffffff
>> 8<--- cut here ---
>> Unable to handle kernel paging request at virtual address fffffffe
>> pgd = 5dd50df5
>> [fffffffe] *pgd=affff861, *pte=00000000, *ppte=00000000
>> Internal error: Oops: 37 [#1] SMP ARM
>> Modules linked in: gmac(O)
>> CPU: 2 PID: 635 Comm: test-oom Tainted: G O 5.10.0+ #31
>> Hardware name: Hisilicon A9
>> PC is at move_freepages_block+0x150/0x278
>> LR is at move_freepages_block+0x150/0x278
>> pc : [<c02383a4>] lr : [<c02383a4>] psr: 200e0393
>> sp : c4179cf8 ip : 00000000 fp : 00000001
>> r10: c4179d58 r9 : 000de7ff r8 : 00000000
>> r7 : c0863280 r6 : 000de600 r5 : 000de600 r4 : ef3cc000
>> r3 : ffffffff r2 : 00000000 r1 : ef5d069c r0 : fffffffe
>> Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
>> Control: 1ac5387d Table: 83b0c04a DAC: 55555555
>> Process test-oom (pid: 635, stack limit = 0x25d667df)
>>
>>
WARNING: multiple messages have this Message-ID (diff)
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: David Hildenbrand <david@redhat.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
linux-kernel@vger.kernel.org, Mike Rapoport <rppt@linux.ibm.com>,
linux-mm@kvack.org, kvmarm@lists.cs.columbia.edu,
Marc Zyngier <maz@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: arm32: panic in move_freepages (Was [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid())
Date: Mon, 26 Apr 2021 23:26:38 +0800 [thread overview]
Message-ID: <2d879629-3059-fd42-428f-4b7c2a73d698@huawei.com> (raw)
In-Reply-To: <YIZNq5HMfJ1rWytv@kernel.org>
On 2021/4/26 13:20, Mike Rapoport wrote:
> On Sun, Apr 25, 2021 at 03:51:56PM +0800, Kefeng Wang wrote:
>> On 2021/4/25 15:19, Mike Rapoport wrote:
>>
>> On Fri, Apr 23, 2021 at 04:11:16PM +0800, Kefeng Wang wrote:
>>
>> I tested this patchset(plus arm32 change, like arm64 does) based on lts
>> 5.10，add
>>
>> some debug log, the useful info shows below, if we enable HOLES_IN_ZONE, no
>> panic,
>>
>> any idea, thanks.
>>
>>
>> Are there any changes on top of 5.10 except for pfn_valid() patch?
>> Do you see this panic on 5.10 without the changes?
>>
>> Yes, there are some BSP support for arm board based on 5.10, with or without
>>
>> your patch will get same panic, the panic pfn=de600 in the range of
>> [dcc00,de00]
>>
>> which is freed by free_memmap, start_pfn = dcc00, dcc00000 end_pfn = de700,
>> de700000
>>
>> we see the PC is at PageLRU, same reason like arm64 panic log,
>>
>> "PageBuddy in move_freepages returns false
>> Then we call PageLRU, the macro calls PF_HEAD which is compound_page()
>> compound_page reads page->compound_head, it is 0xffffffffffffffff, so it
>> resturns 0xfffffffffffffffe - and accessing this address causes crash"
>>
>> Can you see stack backtrace beyond move_freepages_block?
>>
>> I do some oom test, so the log is about memory allocate,
>>
>> [<c02383c8>] (move_freepages_block) from [<c0238668>]
>> (steal_suitable_fallback+0x174/0x1f4)
>>
>> [<c0238668>] (steal_suitable_fallback) from [<c023999c>] (get_page_from_freelist+0x490/0x9a4)
> Hmm, this is called with a page from free list, having a page from a freed
> part of the memory map passed to steal_suitable_fallback() means that there
> is an issue with creation of the free list.
>
> Can you please add "memblock=debug" to the kernel command line and post the
> log?
Here is the log,
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=1ac5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt: Machine model: HISI-CA9
memblock_add: [0x80a00000-0x855fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x86a00000-0x87dfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x8bd00000-0x8c4fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x8e300000-0x8ecfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x90d00000-0xbfffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xcc000000-0xdc9fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xe0800000-0xe0bfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf5300000-0xf5bfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf5c00000-0xf6ffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfe100000-0xfebfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfec00000-0xffffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xde700000-0xde9fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf4b00000-0xf52fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfda00000-0xfe0fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_reserve: [0x80a01000-0x80a02d2e] setup_arch+0x68/0x5c4
Malformed early option 'vecpage_wrprotect'
Memory policy: Data cache writealloc
memblock_reserve: [0x80b00000-0x812e8057] arm_memblock_init+0x34/0x14c
memblock_reserve: [0x83000000-0x84ffffff] arm_memblock_init+0x100/0x14c
memblock_reserve: [0x80a04000-0x80a07fff] arm_memblock_init+0xa0/0x14c
memblock_reserve: [0x80a00000-0x80a02fff] hisi_mem_reserve+0x14/0x30
MEMBLOCK configuration:
memory size = 0x4c0fffff reserved size = 0x027ef058
memory.cnt = 0xa
memory[0x0] [0x80a00000-0x855fffff], 0x04c00000 bytes flags: 0x0
memory[0x1] [0x86a00000-0x87dfffff], 0x01400000 bytes flags: 0x0
memory[0x2] [0x8bd00000-0x8c4fffff], 0x00800000 bytes flags: 0x0
memory[0x3] [0x8e300000-0x8ecfffff], 0x00a00000 bytes flags: 0x0
memory[0x4] [0x90d00000-0xbfffffff], 0x2f300000 bytes flags: 0x0
memory[0x5] [0xcc000000-0xdc9fffff], 0x10a00000 bytes flags: 0x0
memory[0x6] [0xde700000-0xde9fffff], 0x00300000 bytes flags: 0x0
memory[0x7] [0xe0800000-0xe0bfffff], 0x00400000 bytes flags: 0x0
memory[0x8] [0xf4b00000-0xf6ffffff], 0x02500000 bytes flags: 0x0
memory[0x9] [0xfda00000-0xfffffffe], 0x025fffff bytes flags: 0x0
reserved.cnt = 0x4
reserved[0x0] [0x80a00000-0x80a02fff], 0x00003000 bytes flags: 0x0
reserved[0x1] [0x80a04000-0x80a07fff], 0x00004000 bytes flags: 0x0
reserved[0x2] [0x80b00000-0x812e8057], 0x007e8058 bytes flags: 0x0
reserved[0x3] [0x83000000-0x84ffffff], 0x02000000 bytes flags: 0x0
memblock_alloc_try_nid: 2097152 bytes align=0x200000 nid=-1
from=0x00000000 max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xb0000000-0xb01fffff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xaffff000-0xafffffff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 40 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 iotable_init+0x34/0xf0
memblock_reserve: [0xafffefd8-0xafffefff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffd000-0xafffdfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffc000-0xafffcfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffb000-0xafffbfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffa000-0xafffafff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 384 bytes align=0x20 nid=0 from=0x00000000
max_addr=0x00000000 sparse_init_nid+0x34/0x1d8
memblock_reserve: [0xafffee40-0xafffefbf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_exact_nid_raw: 12582912 bytes align=0x80000 nid=0
from=0xc09fffff max_addr=0x00000000 sparse_init_nid+0xec/0x1d8
memblock_reserve: [0xaf380000-0xaff7ffff]
memblock_alloc_range_nid+0x104/0x13c
Zone ranges:
Normal [mem 0x0000000080a00000-0x00000000b01fffff]
HighMem [mem 0x00000000b0200000-0x00000000ffffefff]
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000080a00000-0x00000000855fffff]
node 0: [mem 0x0000000086a00000-0x0000000087dfffff]
node 0: [mem 0x000000008bd00000-0x000000008c4fffff]
node 0: [mem 0x000000008e300000-0x000000008ecfffff]
node 0: [mem 0x0000000090d00000-0x00000000bfffffff]
node 0: [mem 0x00000000cc000000-0x00000000dc9fffff]
node 0: [mem 0x00000000de700000-0x00000000de9fffff]
node 0: [mem 0x00000000e0800000-0x00000000e0bfffff]
node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff]
node 0: [mem 0x00000000fda00000-0x00000000ffffefff]
Zeroed struct page in unavailable ranges: 513 pages
Initmem setup node 0 [mem 0x0000000080a00000-0x00000000ffffefff]
On node 0 totalpages: 311551
Normal zone: 1230 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 157440 pages, LIFO batch:31
HighMem zone: 154111 pages, LIFO batch:31
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffee20-0xafffee3f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffee00-0xafffee1f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffede0-0xafffedff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffedc0-0xafffeddf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffeda0-0xafffedbf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed80-0xafffed9f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed60-0xafffed7f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed40-0xafffed5f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed20-0xafffed3f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed00-0xafffed1f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 22396 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 early_init_dt_alloc_memory_arch+0x30/0x64
memblock_reserve: [0xafff4884-0xafff9fff]
memblock_alloc_range_nid+0x104/0x13c
[dts]:cpu type is 1380
memblock_alloc_try_nid: 404 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc.constprop.8+0x1c/0x24
memblock_reserve: [0xafffeb60-0xafffecf3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 404 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc.constprop.8+0x1c/0x24
memblock_reserve: [0xafffe9c0-0xafffeb53]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff3000-0xafff3fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff2000-0xafff2fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 278528 bytes align=0x1000 nid=-1 from=0xc09fffff
max_addr=0x00000000 pcpu_dfl_fc_alloc+0x28/0x34
memblock_reserve: [0xaffae000-0xafff1fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_free: [0xaffbf000-0xaffbefff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xaffd0000-0xaffcffff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xaffe1000-0xaffe0fff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xafff2000-0xafff1fff] pcpu_embed_first_chunk+0x5ec/0x6a8
percpu: Embedded 17 pages/cpu s37044 r8192 d24396 u69632
memblock_alloc_try_nid: 4 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffefc0-0xafffefc3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe9a0-0xafffe9a3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 16 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe980-0xafffe98f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 16 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe960-0xafffe96f]
memblock_alloc_range_nid+0x104/0x13c
pcpu-alloc: s37044 r8192 d24396 u69632 alloc=17*4096
pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
memblock_alloc_try_nid: 128 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe8e0-0xafffe95f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 92 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe880-0xafffe8db]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 384 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe700-0xafffe87f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 388 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe560-0xafffe6e3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 96 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe500-0xafffe55f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 92 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe4a0-0xafffe4fb]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 768 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe1a0-0xafffe49f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 772 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff4580-0xafff4883]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 192 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe0e0-0xafffe19f]
memblock_alloc_range_nid+0x104/0x13c
memblock_free: [0xafff3000-0xafff3fff] pcpu_embed_first_chunk+0x570/0x6a8
memblock_free: [0xafff2000-0xafff2fff] pcpu_embed_first_chunk+0x58c/0x6a8
Built 1 zonelists, mobility grouping on. Total pages: 310321
Kernel command line: console=ttyAMA0,9600n8N lpj=8000000
initrd=0x83000000,0x2000000 maxcpus=4 master_cpu=1 quiet highres=off
oops=panic vecpage_wrprotect ksm=1 ramdisk_size=30720 kmemleak=off
min_loop=128 lockd.nlm_tcpport=13001 lockd.nlm_udpport=13001
rdinit=/sbin/init root=/dev/ram0 vmalloc=256M
printk: log_buf_len individual max cpu contribution: 4096 bytes
printk: log_buf_len total cpu_extra contributions: 12288 bytes
printk: log_buf_len min size: 16384 bytes
memblock_alloc_try_nid: 32768 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0xe4/0x404
memblock_reserve: [0xaffa6000-0xaffadfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 12288 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0x130/0x404
memblock_reserve: [0xaffa3000-0xaffa5fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 90112 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0x180/0x404
memblock_reserve: [0xaff8d000-0xaffa2fff]
memblock_alloc_range_nid+0x104/0x13c
printk: log_buf_len: 32768 bytes
printk: early log buf free: 2492(15%)
memblock_alloc_try_nid: 524288 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 alloc_large_system_hash+0x1b0/0x2e8
memblock_reserve: [0xaf300000-0xaf37ffff]
memblock_alloc_range_nid+0x104/0x13c
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
memblock_alloc_try_nid: 262144 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 alloc_large_system_hash+0x1b0/0x2e8
memblock_reserve: [0xaf2c0000-0xaf2fffff]
memblock_alloc_range_nid+0x104/0x13c
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
memblock_free: [0xaf430000-0xaf453fff] mem_init+0x154/0x238
memblock_free: [0xaf510000-0xaf545fff] mem_init+0x154/0x238
memblock_free: [0xaf560000-0xaf57ffff] mem_init+0x154/0x238
memblock_free: [0xafd98000-0xafdcdfff] mem_init+0x154/0x238
memblock_free: [0xafdd8000-0xafdfffff] mem_init+0x154/0x238
memblock_free: [0xafe18000-0xafe7ffff] mem_init+0x154/0x238
memblock_free: [0xafee0000-0xafefffff] mem_init+0x154/0x238
Memory: 1191160K/1246204K available (4096K kernel code, 436K rwdata,
1120K rodata, 1024K init, 491K bss, 55044K reserved, 0K cma-reserved,
616444K highmem)
>> [<c023999c>] (get_page_from_freelist) from [<c023a4dc>] (__alloc_pages_nodemask+0x188/0xc08)
>> [<c023a4dc>] (__alloc_pages_nodemask) from [<c0223078>] (alloc_zeroed_user_highpage_movable+0x14/0x3c)
>> [<c0223078>] (alloc_zeroed_user_highpage_movable) from [<c0226768>] (handle_mm_fault+0x254/0xac8)
>> [<c0226768>] (handle_mm_fault) from [<c04ba09c>] (do_page_fault+0x228/0x2f4)
>> [<c04ba09c>] (do_page_fault) from [<c0111d80>] (do_DataAbort+0x48/0xd0)
>> [<c0111d80>] (do_DataAbort) from [<c0100e00>] (__dabt_usr+0x40/0x60)
>>
>>
>>
>> Zone ranges:
>> Normal [mem 0x0000000080a00000-0x00000000b01fffff]
>> HighMem [mem 0x00000000b0200000-0x00000000ffffefff]
>> Movable zone start for each node
>> Early memory node ranges
>> node 0: [mem 0x0000000080a00000-0x00000000855fffff]
>> node 0: [mem 0x0000000086a00000-0x0000000087dfffff]
>> node 0: [mem 0x000000008bd00000-0x000000008c4fffff]
>> node 0: [mem 0x000000008e300000-0x000000008ecfffff]
>> node 0: [mem 0x0000000090d00000-0x00000000bfffffff]
>> node 0: [mem 0x00000000cc000000-0x00000000dc9fffff]
>> node 0: [mem 0x00000000de700000-0x00000000de9fffff]
>> node 0: [mem 0x00000000e0800000-0x00000000e0bfffff]
>> node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff]
>> node 0: [mem 0x00000000fda00000-0x00000000ffffefff]
>>
>> ----> free_memmap, start_pfn = 85800, 85800000 end_pfn = 86a00, 86a00000
>> ----> free_memmap, start_pfn = 8c800, 8c800000 end_pfn = 8e300, 8e300000
>> ----> free_memmap, start_pfn = 8f000, 8f000000 end_pfn = 90000, 90000000
>> ----> free_memmap, start_pfn = dcc00, dcc00000 end_pfn = de700, de700000
>> ----> free_memmap, start_pfn = dec00, dec00000 end_pfn = e0000, e0000000
>> ----> free_memmap, start_pfn = e0c00, e0c00000 end_pfn = e4000, e4000000
>> ----> free_memmap, start_pfn = f7000, f7000000 end_pfn = f8000, f8000000
>> === >move_freepages: start_pfn/end_pfn [de601, de7ff], [de600000, de7ff000]
>> : pfn =de600 pfn2phy = de600000 , page = ef3cc000, page-flags = ffffffff
>> 8<--- cut here ---
>> Unable to handle kernel paging request at virtual address fffffffe
>> pgd = 5dd50df5
>> [fffffffe] *pgd=affff861, *pte=00000000, *ppte=00000000
>> Internal error: Oops: 37 [#1] SMP ARM
>> Modules linked in: gmac(O)
>> CPU: 2 PID: 635 Comm: test-oom Tainted: G O 5.10.0+ #31
>> Hardware name: Hisilicon A9
>> PC is at move_freepages_block+0x150/0x278
>> LR is at move_freepages_block+0x150/0x278
>> pc : [<c02383a4>] lr : [<c02383a4>] psr: 200e0393
>> sp : c4179cf8 ip : 00000000 fp : 00000001
>> r10: c4179d58 r9 : 000de7ff r8 : 00000000
>> r7 : c0863280 r6 : 000de600 r5 : 000de600 r4 : ef3cc000
>> r3 : ffffffff r2 : 00000000 r1 : ef5d069c r0 : fffffffe
>> Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
>> Control: 1ac5387d Table: 83b0c04a DAC: 55555555
>> Process test-oom (pid: 635, stack limit = 0x25d667df)
>>
>>
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WARNING: multiple messages have this Message-ID (diff)
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Ard Biesheuvel <ardb@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
David Hildenbrand <david@redhat.com>,
Marc Zyngier <maz@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
Mike Rapoport <rppt@linux.ibm.com>,
"Will Deacon" <will@kernel.org>, <kvmarm@lists.cs.columbia.edu>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>
Subject: Re: arm32: panic in move_freepages (Was [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid())
Date: Mon, 26 Apr 2021 23:26:38 +0800 [thread overview]
Message-ID: <2d879629-3059-fd42-428f-4b7c2a73d698@huawei.com> (raw)
In-Reply-To: <YIZNq5HMfJ1rWytv@kernel.org>
On 2021/4/26 13:20, Mike Rapoport wrote:
> On Sun, Apr 25, 2021 at 03:51:56PM +0800, Kefeng Wang wrote:
>> On 2021/4/25 15:19, Mike Rapoport wrote:
>>
>> On Fri, Apr 23, 2021 at 04:11:16PM +0800, Kefeng Wang wrote:
>>
>> I tested this patchset(plus arm32 change, like arm64 does) based on lts
>> 5.10，add
>>
>> some debug log, the useful info shows below, if we enable HOLES_IN_ZONE, no
>> panic,
>>
>> any idea, thanks.
>>
>>
>> Are there any changes on top of 5.10 except for pfn_valid() patch?
>> Do you see this panic on 5.10 without the changes?
>>
>> Yes, there are some BSP support for arm board based on 5.10, with or without
>>
>> your patch will get same panic, the panic pfn=de600 in the range of
>> [dcc00,de00]
>>
>> which is freed by free_memmap, start_pfn = dcc00, dcc00000 end_pfn = de700,
>> de700000
>>
>> we see the PC is at PageLRU, same reason like arm64 panic log,
>>
>> "PageBuddy in move_freepages returns false
>> Then we call PageLRU, the macro calls PF_HEAD which is compound_page()
>> compound_page reads page->compound_head, it is 0xffffffffffffffff, so it
>> resturns 0xfffffffffffffffe - and accessing this address causes crash"
>>
>> Can you see stack backtrace beyond move_freepages_block?
>>
>> I do some oom test, so the log is about memory allocate,
>>
>> [<c02383c8>] (move_freepages_block) from [<c0238668>]
>> (steal_suitable_fallback+0x174/0x1f4)
>>
>> [<c0238668>] (steal_suitable_fallback) from [<c023999c>] (get_page_from_freelist+0x490/0x9a4)
> Hmm, this is called with a page from free list, having a page from a freed
> part of the memory map passed to steal_suitable_fallback() means that there
> is an issue with creation of the free list.
>
> Can you please add "memblock=debug" to the kernel command line and post the
> log?
Here is the log,
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=1ac5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt: Machine model: HISI-CA9
memblock_add: [0x80a00000-0x855fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x86a00000-0x87dfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x8bd00000-0x8c4fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x8e300000-0x8ecfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0x90d00000-0xbfffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xcc000000-0xdc9fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xe0800000-0xe0bfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf5300000-0xf5bfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf5c00000-0xf6ffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfe100000-0xfebfffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfec00000-0xffffffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xde700000-0xde9fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xf4b00000-0xf52fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_add: [0xfda00000-0xfe0fffff] early_init_dt_scan_memory+0x11c/0x188
memblock_reserve: [0x80a01000-0x80a02d2e] setup_arch+0x68/0x5c4
Malformed early option 'vecpage_wrprotect'
Memory policy: Data cache writealloc
memblock_reserve: [0x80b00000-0x812e8057] arm_memblock_init+0x34/0x14c
memblock_reserve: [0x83000000-0x84ffffff] arm_memblock_init+0x100/0x14c
memblock_reserve: [0x80a04000-0x80a07fff] arm_memblock_init+0xa0/0x14c
memblock_reserve: [0x80a00000-0x80a02fff] hisi_mem_reserve+0x14/0x30
MEMBLOCK configuration:
memory size = 0x4c0fffff reserved size = 0x027ef058
memory.cnt = 0xa
memory[0x0] [0x80a00000-0x855fffff], 0x04c00000 bytes flags: 0x0
memory[0x1] [0x86a00000-0x87dfffff], 0x01400000 bytes flags: 0x0
memory[0x2] [0x8bd00000-0x8c4fffff], 0x00800000 bytes flags: 0x0
memory[0x3] [0x8e300000-0x8ecfffff], 0x00a00000 bytes flags: 0x0
memory[0x4] [0x90d00000-0xbfffffff], 0x2f300000 bytes flags: 0x0
memory[0x5] [0xcc000000-0xdc9fffff], 0x10a00000 bytes flags: 0x0
memory[0x6] [0xde700000-0xde9fffff], 0x00300000 bytes flags: 0x0
memory[0x7] [0xe0800000-0xe0bfffff], 0x00400000 bytes flags: 0x0
memory[0x8] [0xf4b00000-0xf6ffffff], 0x02500000 bytes flags: 0x0
memory[0x9] [0xfda00000-0xfffffffe], 0x025fffff bytes flags: 0x0
reserved.cnt = 0x4
reserved[0x0] [0x80a00000-0x80a02fff], 0x00003000 bytes flags: 0x0
reserved[0x1] [0x80a04000-0x80a07fff], 0x00004000 bytes flags: 0x0
reserved[0x2] [0x80b00000-0x812e8057], 0x007e8058 bytes flags: 0x0
reserved[0x3] [0x83000000-0x84ffffff], 0x02000000 bytes flags: 0x0
memblock_alloc_try_nid: 2097152 bytes align=0x200000 nid=-1
from=0x00000000 max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xb0000000-0xb01fffff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xaffff000-0xafffffff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 40 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 iotable_init+0x34/0xf0
memblock_reserve: [0xafffefd8-0xafffefff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffd000-0xafffdfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffc000-0xafffcfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffb000-0xafffbfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 early_alloc+0x20/0x4c
memblock_reserve: [0xafffa000-0xafffafff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 384 bytes align=0x20 nid=0 from=0x00000000
max_addr=0x00000000 sparse_init_nid+0x34/0x1d8
memblock_reserve: [0xafffee40-0xafffefbf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_exact_nid_raw: 12582912 bytes align=0x80000 nid=0
from=0xc09fffff max_addr=0x00000000 sparse_init_nid+0xec/0x1d8
memblock_reserve: [0xaf380000-0xaff7ffff]
memblock_alloc_range_nid+0x104/0x13c
Zone ranges:
Normal [mem 0x0000000080a00000-0x00000000b01fffff]
HighMem [mem 0x00000000b0200000-0x00000000ffffefff]
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000080a00000-0x00000000855fffff]
node 0: [mem 0x0000000086a00000-0x0000000087dfffff]
node 0: [mem 0x000000008bd00000-0x000000008c4fffff]
node 0: [mem 0x000000008e300000-0x000000008ecfffff]
node 0: [mem 0x0000000090d00000-0x00000000bfffffff]
node 0: [mem 0x00000000cc000000-0x00000000dc9fffff]
node 0: [mem 0x00000000de700000-0x00000000de9fffff]
node 0: [mem 0x00000000e0800000-0x00000000e0bfffff]
node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff]
node 0: [mem 0x00000000fda00000-0x00000000ffffefff]
Zeroed struct page in unavailable ranges: 513 pages
Initmem setup node 0 [mem 0x0000000080a00000-0x00000000ffffefff]
On node 0 totalpages: 311551
Normal zone: 1230 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 157440 pages, LIFO batch:31
HighMem zone: 154111 pages, LIFO batch:31
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffee20-0xafffee3f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffee00-0xafffee1f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffede0-0xafffedff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffedc0-0xafffeddf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffeda0-0xafffedbf]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed80-0xafffed9f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed60-0xafffed7f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed40-0xafffed5f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed20-0xafffed3f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 32 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 setup_arch+0x440/0x5c4
memblock_reserve: [0xafffed00-0xafffed1f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 22396 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 early_init_dt_alloc_memory_arch+0x30/0x64
memblock_reserve: [0xafff4884-0xafff9fff]
memblock_alloc_range_nid+0x104/0x13c
[dts]:cpu type is 1380
memblock_alloc_try_nid: 404 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc.constprop.8+0x1c/0x24
memblock_reserve: [0xafffeb60-0xafffecf3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 404 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc.constprop.8+0x1c/0x24
memblock_reserve: [0xafffe9c0-0xafffeb53]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x1000 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff3000-0xafff3fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4096 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff2000-0xafff2fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 278528 bytes align=0x1000 nid=-1 from=0xc09fffff
max_addr=0x00000000 pcpu_dfl_fc_alloc+0x28/0x34
memblock_reserve: [0xaffae000-0xafff1fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_free: [0xaffbf000-0xaffbefff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xaffd0000-0xaffcffff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xaffe1000-0xaffe0fff] pcpu_embed_first_chunk+0x5ec/0x6a8
memblock_free: [0xafff2000-0xafff1fff] pcpu_embed_first_chunk+0x5ec/0x6a8
percpu: Embedded 17 pages/cpu s37044 r8192 d24396 u69632
memblock_alloc_try_nid: 4 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffefc0-0xafffefc3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 4 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe9a0-0xafffe9a3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 16 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe980-0xafffe98f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 16 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe960-0xafffe96f]
memblock_alloc_range_nid+0x104/0x13c
pcpu-alloc: s37044 r8192 d24396 u69632 alloc=17*4096
pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
memblock_alloc_try_nid: 128 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe8e0-0xafffe95f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 92 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe880-0xafffe8db]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 384 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe700-0xafffe87f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 388 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe560-0xafffe6e3]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 96 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe500-0xafffe55f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 92 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe4a0-0xafffe4fb]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 768 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe1a0-0xafffe49f]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 772 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafff4580-0xafff4883]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 192 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 memblock_alloc+0x18/0x20
memblock_reserve: [0xafffe0e0-0xafffe19f]
memblock_alloc_range_nid+0x104/0x13c
memblock_free: [0xafff3000-0xafff3fff] pcpu_embed_first_chunk+0x570/0x6a8
memblock_free: [0xafff2000-0xafff2fff] pcpu_embed_first_chunk+0x58c/0x6a8
Built 1 zonelists, mobility grouping on. Total pages: 310321
Kernel command line: console=ttyAMA0,9600n8N lpj=8000000
initrd=0x83000000,0x2000000 maxcpus=4 master_cpu=1 quiet highres=off
oops=panic vecpage_wrprotect ksm=1 ramdisk_size=30720 kmemleak=off
min_loop=128 lockd.nlm_tcpport=13001 lockd.nlm_udpport=13001
rdinit=/sbin/init root=/dev/ram0 vmalloc=256M
printk: log_buf_len individual max cpu contribution: 4096 bytes
printk: log_buf_len total cpu_extra contributions: 12288 bytes
printk: log_buf_len min size: 16384 bytes
memblock_alloc_try_nid: 32768 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0xe4/0x404
memblock_reserve: [0xaffa6000-0xaffadfff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 12288 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0x130/0x404
memblock_reserve: [0xaffa3000-0xaffa5fff]
memblock_alloc_range_nid+0x104/0x13c
memblock_alloc_try_nid: 90112 bytes align=0x4 nid=-1 from=0x00000000
max_addr=0x00000000 setup_log_buf+0x180/0x404
memblock_reserve: [0xaff8d000-0xaffa2fff]
memblock_alloc_range_nid+0x104/0x13c
printk: log_buf_len: 32768 bytes
printk: early log buf free: 2492(15%)
memblock_alloc_try_nid: 524288 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 alloc_large_system_hash+0x1b0/0x2e8
memblock_reserve: [0xaf300000-0xaf37ffff]
memblock_alloc_range_nid+0x104/0x13c
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
memblock_alloc_try_nid: 262144 bytes align=0x20 nid=-1 from=0x00000000
max_addr=0x00000000 alloc_large_system_hash+0x1b0/0x2e8
memblock_reserve: [0xaf2c0000-0xaf2fffff]
memblock_alloc_range_nid+0x104/0x13c
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
memblock_free: [0xaf430000-0xaf453fff] mem_init+0x154/0x238
memblock_free: [0xaf510000-0xaf545fff] mem_init+0x154/0x238
memblock_free: [0xaf560000-0xaf57ffff] mem_init+0x154/0x238
memblock_free: [0xafd98000-0xafdcdfff] mem_init+0x154/0x238
memblock_free: [0xafdd8000-0xafdfffff] mem_init+0x154/0x238
memblock_free: [0xafe18000-0xafe7ffff] mem_init+0x154/0x238
memblock_free: [0xafee0000-0xafefffff] mem_init+0x154/0x238
Memory: 1191160K/1246204K available (4096K kernel code, 436K rwdata,
1120K rodata, 1024K init, 491K bss, 55044K reserved, 0K cma-reserved,
616444K highmem)
>> [<c023999c>] (get_page_from_freelist) from [<c023a4dc>] (__alloc_pages_nodemask+0x188/0xc08)
>> [<c023a4dc>] (__alloc_pages_nodemask) from [<c0223078>] (alloc_zeroed_user_highpage_movable+0x14/0x3c)
>> [<c0223078>] (alloc_zeroed_user_highpage_movable) from [<c0226768>] (handle_mm_fault+0x254/0xac8)
>> [<c0226768>] (handle_mm_fault) from [<c04ba09c>] (do_page_fault+0x228/0x2f4)
>> [<c04ba09c>] (do_page_fault) from [<c0111d80>] (do_DataAbort+0x48/0xd0)
>> [<c0111d80>] (do_DataAbort) from [<c0100e00>] (__dabt_usr+0x40/0x60)
>>
>>
>>
>> Zone ranges:
>> Normal [mem 0x0000000080a00000-0x00000000b01fffff]
>> HighMem [mem 0x00000000b0200000-0x00000000ffffefff]
>> Movable zone start for each node
>> Early memory node ranges
>> node 0: [mem 0x0000000080a00000-0x00000000855fffff]
>> node 0: [mem 0x0000000086a00000-0x0000000087dfffff]
>> node 0: [mem 0x000000008bd00000-0x000000008c4fffff]
>> node 0: [mem 0x000000008e300000-0x000000008ecfffff]
>> node 0: [mem 0x0000000090d00000-0x00000000bfffffff]
>> node 0: [mem 0x00000000cc000000-0x00000000dc9fffff]
>> node 0: [mem 0x00000000de700000-0x00000000de9fffff]
>> node 0: [mem 0x00000000e0800000-0x00000000e0bfffff]
>> node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff]
>> node 0: [mem 0x00000000fda00000-0x00000000ffffefff]
>>
>> ----> free_memmap, start_pfn = 85800, 85800000 end_pfn = 86a00, 86a00000
>> ----> free_memmap, start_pfn = 8c800, 8c800000 end_pfn = 8e300, 8e300000
>> ----> free_memmap, start_pfn = 8f000, 8f000000 end_pfn = 90000, 90000000
>> ----> free_memmap, start_pfn = dcc00, dcc00000 end_pfn = de700, de700000
>> ----> free_memmap, start_pfn = dec00, dec00000 end_pfn = e0000, e0000000
>> ----> free_memmap, start_pfn = e0c00, e0c00000 end_pfn = e4000, e4000000
>> ----> free_memmap, start_pfn = f7000, f7000000 end_pfn = f8000, f8000000
>> === >move_freepages: start_pfn/end_pfn [de601, de7ff], [de600000, de7ff000]
>> : pfn =de600 pfn2phy = de600000 , page = ef3cc000, page-flags = ffffffff
>> 8<--- cut here ---
>> Unable to handle kernel paging request at virtual address fffffffe
>> pgd = 5dd50df5
>> [fffffffe] *pgd=affff861, *pte=00000000, *ppte=00000000
>> Internal error: Oops: 37 [#1] SMP ARM
>> Modules linked in: gmac(O)
>> CPU: 2 PID: 635 Comm: test-oom Tainted: G O 5.10.0+ #31
>> Hardware name: Hisilicon A9
>> PC is at move_freepages_block+0x150/0x278
>> LR is at move_freepages_block+0x150/0x278
>> pc : [<c02383a4>] lr : [<c02383a4>] psr: 200e0393
>> sp : c4179cf8 ip : 00000000 fp : 00000001
>> r10: c4179d58 r9 : 000de7ff r8 : 00000000
>> r7 : c0863280 r6 : 000de600 r5 : 000de600 r4 : ef3cc000
>> r3 : ffffffff r2 : 00000000 r1 : ef5d069c r0 : fffffffe
>> Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
>> Control: 1ac5387d Table: 83b0c04a DAC: 55555555
>> Process test-oom (pid: 635, stack limit = 0x25d667df)
>>
>>
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next prev parent reply other threads:[~2021-04-26 15:26 UTC|newest]
Thread overview: 143+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-21 6:51 [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid() Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 6:51 ` [PATCH v2 1/4] include/linux/mmzone.h: add documentation for pfn_valid() Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 10:49 ` Anshuman Khandual
2021-04-21 10:49 ` Anshuman Khandual
2021-04-21 10:49 ` Anshuman Khandual
2021-04-21 6:51 ` [PATCH v2 2/4] memblock: update initialization of reserved pages Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 7:49 ` David Hildenbrand
2021-04-21 7:49 ` David Hildenbrand
2021-04-21 7:49 ` David Hildenbrand
2021-04-21 10:51 ` Anshuman Khandual
2021-04-21 10:51 ` Anshuman Khandual
2021-04-21 10:51 ` Anshuman Khandual
2021-04-21 6:51 ` [PATCH v2 3/4] arm64: decouple check whether pfn is in linear map from pfn_valid() Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 10:59 ` Anshuman Khandual
2021-04-21 10:59 ` Anshuman Khandual
2021-04-21 10:59 ` Anshuman Khandual
2021-04-21 12:19 ` Mike Rapoport
2021-04-21 12:19 ` Mike Rapoport
2021-04-21 12:19 ` Mike Rapoport
2021-04-21 13:13 ` Anshuman Khandual
2021-04-21 13:13 ` Anshuman Khandual
2021-04-21 13:13 ` Anshuman Khandual
2021-04-21 6:51 ` [PATCH v2 4/4] arm64: drop pfn_valid_within() and simplify pfn_valid() Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 6:51 ` Mike Rapoport
2021-04-21 7:49 ` David Hildenbrand
2021-04-21 7:49 ` David Hildenbrand
2021-04-21 7:49 ` David Hildenbrand
2021-04-21 11:06 ` Anshuman Khandual
2021-04-21 11:06 ` Anshuman Khandual
2021-04-21 11:06 ` Anshuman Khandual
2021-04-21 12:24 ` Mike Rapoport
2021-04-21 12:24 ` Mike Rapoport
2021-04-21 12:24 ` Mike Rapoport
2021-04-21 13:15 ` Anshuman Khandual
2021-04-21 13:15 ` Anshuman Khandual
2021-04-21 13:15 ` Anshuman Khandual
2021-04-22 7:00 ` [PATCH v2 0/4] " Kefeng Wang
2021-04-22 7:00 ` Kefeng Wang
2021-04-22 7:00 ` Kefeng Wang
2021-04-22 7:29 ` Mike Rapoport
2021-04-22 7:29 ` Mike Rapoport
2021-04-22 7:29 ` Mike Rapoport
2021-04-22 15:28 ` Kefeng Wang
2021-04-22 15:28 ` Kefeng Wang
2021-04-22 15:28 ` Kefeng Wang
2021-04-23 8:11 ` Kefeng Wang
2021-04-23 8:11 ` Kefeng Wang
2021-04-23 8:11 ` Kefeng Wang
2021-04-25 7:19 ` arm32: panic in move_freepages (Was [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid()) Mike Rapoport
2021-04-25 7:19 ` Mike Rapoport
2021-04-25 7:19 ` Mike Rapoport
2021-04-25 7:51 ` Kefeng Wang
2021-04-25 7:51 ` Kefeng Wang
2021-04-26 5:20 ` Mike Rapoport
2021-04-26 5:20 ` Mike Rapoport
2021-04-26 5:20 ` Mike Rapoport
2021-04-26 15:26 ` Kefeng Wang [this message]
2021-04-26 15:26 ` Kefeng Wang
2021-04-26 15:26 ` Kefeng Wang
2021-04-27 6:23 ` Mike Rapoport
2021-04-27 6:23 ` Mike Rapoport
2021-04-27 6:23 ` Mike Rapoport
2021-04-27 11:08 ` Kefeng Wang
2021-04-27 11:08 ` Kefeng Wang
2021-04-27 11:08 ` Kefeng Wang
2021-04-28 5:59 ` Mike Rapoport
2021-04-28 5:59 ` Mike Rapoport
2021-04-28 5:59 ` Mike Rapoport
2021-04-29 0:48 ` Kefeng Wang
2021-04-29 0:48 ` Kefeng Wang
2021-04-29 0:48 ` Kefeng Wang
2021-04-29 6:57 ` Mike Rapoport
2021-04-29 6:57 ` Mike Rapoport
2021-04-29 6:57 ` Mike Rapoport
2021-04-29 10:22 ` Kefeng Wang
2021-04-29 10:22 ` Kefeng Wang
2021-04-29 10:22 ` Kefeng Wang
2021-04-30 9:51 ` Mike Rapoport
2021-04-30 9:51 ` Mike Rapoport
2021-04-30 9:51 ` Mike Rapoport
2021-04-30 11:24 ` Kefeng Wang
2021-04-30 11:24 ` Kefeng Wang
2021-04-30 11:24 ` Kefeng Wang
2021-05-03 6:26 ` Mike Rapoport
2021-05-03 6:26 ` Mike Rapoport
2021-05-03 6:26 ` Mike Rapoport
2021-05-03 8:07 ` David Hildenbrand
2021-05-03 8:07 ` David Hildenbrand
2021-05-03 8:07 ` David Hildenbrand
2021-05-03 8:44 ` Mike Rapoport
2021-05-03 8:44 ` Mike Rapoport
2021-05-03 8:44 ` Mike Rapoport
2021-05-06 12:47 ` Kefeng Wang
2021-05-06 12:47 ` Kefeng Wang
2021-05-06 12:47 ` Kefeng Wang
2021-05-07 7:17 ` Kefeng Wang
2021-05-07 7:17 ` Kefeng Wang
2021-05-07 7:17 ` Kefeng Wang
2021-05-07 10:30 ` Mike Rapoport
2021-05-07 10:30 ` Mike Rapoport
2021-05-07 10:30 ` Mike Rapoport
2021-05-07 12:34 ` Kefeng Wang
2021-05-07 12:34 ` Kefeng Wang
2021-05-07 12:34 ` Kefeng Wang
2021-05-09 5:59 ` Mike Rapoport
2021-05-09 5:59 ` Mike Rapoport
2021-05-09 5:59 ` Mike Rapoport
2021-05-10 3:10 ` Kefeng Wang
2021-05-10 3:10 ` Kefeng Wang
2021-05-10 3:10 ` Kefeng Wang
2021-05-11 8:48 ` Mike Rapoport
2021-05-11 8:48 ` Mike Rapoport
2021-05-11 8:48 ` Mike Rapoport
2021-05-12 3:08 ` Kefeng Wang
2021-05-12 3:08 ` Kefeng Wang
2021-05-12 3:08 ` Kefeng Wang
2021-05-12 8:26 ` Mike Rapoport
2021-05-12 8:26 ` Mike Rapoport
2021-05-12 8:26 ` Mike Rapoport
2021-05-13 3:44 ` Kefeng Wang
2021-05-13 3:44 ` Kefeng Wang
2021-05-13 3:44 ` Kefeng Wang
2021-05-13 10:55 ` Mike Rapoport
2021-05-13 10:55 ` Mike Rapoport
2021-05-13 10:55 ` Mike Rapoport
2021-05-14 2:18 ` Kefeng Wang
2021-05-14 2:18 ` Kefeng Wang
2021-05-14 2:18 ` Kefeng Wang
2021-05-12 3:50 ` Matthew Wilcox
2021-05-12 3:50 ` Matthew Wilcox
2021-05-12 3:50 ` Matthew Wilcox
2021-04-25 6:59 ` [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid() Mike Rapoport
2021-04-25 6:59 ` Mike Rapoport
2021-04-25 6:59 ` Mike Rapoport
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