From: Srikar Dronamraju <srikar@linux.vnet.ibm.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>, linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>, Michael Ellerman <mpe@ellerman.id.au>, Sachin Sant <sachinp@linux.vnet.ibm.com>, Michal Hocko <mhocko@kernel.org>, Christopher Lameter <cl@linux.com>, linuxppc-dev@lists.ozlabs.org, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Kirill Tkhai <ktkhai@virtuozzo.com>, Vlastimil Babka <vbabka@suse.cz>, Bharata B Rao <bharata@linux.ibm.com> Subject: [PATCH 2/4] mm/slub: Use mem_node to allocate a new slab Date: Tue, 17 Mar 2020 18:47:51 +0530 [thread overview] Message-ID: <20200317131753.4074-3-srikar@linux.vnet.ibm.com> (raw) In-Reply-To: <20200317131753.4074-1-srikar@linux.vnet.ibm.com> Currently while allocating a slab for a offline node, we use its associated node_numa_mem to search for a partial slab. If we don't find a partial slab, we try allocating a slab from the offline node using __alloc_pages_node. However this is bound to fail. NIP [c00000000039a300] __alloc_pages_nodemask+0x130/0x3b0 LR [c00000000039a3c4] __alloc_pages_nodemask+0x1f4/0x3b0 Call Trace: [c0000008b36837f0] [c00000000039a3b4] __alloc_pages_nodemask+0x1e4/0x3b0 (unreliable) [c0000008b3683870] [c0000000003d1ff8] new_slab+0x128/0xcf0 [c0000008b3683950] [c0000000003d6060] ___slab_alloc+0x410/0x820 [c0000008b3683a40] [c0000000003d64a4] __slab_alloc+0x34/0x60 [c0000008b3683a70] [c0000000003d78b0] __kmalloc_node+0x110/0x490 [c0000008b3683af0] [c000000000343a08] kvmalloc_node+0x58/0x110 [c0000008b3683b30] [c0000000003ffd44] mem_cgroup_css_online+0x104/0x270 [c0000008b3683b90] [c000000000234e08] online_css+0x48/0xd0 [c0000008b3683bc0] [c00000000023dedc] cgroup_apply_control_enable+0x2ec/0x4d0 [c0000008b3683ca0] [c0000000002416f8] cgroup_mkdir+0x228/0x5f0 [c0000008b3683d10] [c000000000520360] kernfs_iop_mkdir+0x90/0xf0 [c0000008b3683d50] [c00000000043e400] vfs_mkdir+0x110/0x230 [c0000008b3683da0] [c000000000441ee0] do_mkdirat+0xb0/0x1a0 [c0000008b3683e20] [c00000000000b278] system_call+0x5c/0x68 Mitigate this by allocating the new slab from the node_numa_mem. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Cc: Mel Gorman <mgorman@suse.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Sachin Sant <sachinp@linux.vnet.ibm.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Christopher Lameter <cl@linux.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Kirill Tkhai <ktkhai@virtuozzo.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Bharata B Rao <bharata@linux.ibm.com> Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com> Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com> Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> --- mm/slub.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 1c55bf7892bf..fdf7f38f96e6 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1970,14 +1970,8 @@ static void *get_partial(struct kmem_cache *s, gfp_t flags, int node, struct kmem_cache_cpu *c) { void *object; - int searchnode = node; - if (node == NUMA_NO_NODE) - searchnode = numa_mem_id(); - else if (!node_present_pages(node)) - searchnode = node_to_mem_node(node); - - object = get_partial_node(s, get_node(s, searchnode), c, flags); + object = get_partial_node(s, get_node(s, node), c, flags); if (object || node != NUMA_NO_NODE) return object; @@ -2470,6 +2464,11 @@ static inline void *new_slab_objects(struct kmem_cache *s, gfp_t flags, WARN_ON_ONCE(s->ctor && (flags & __GFP_ZERO)); + if (node == NUMA_NO_NODE) + node = numa_mem_id(); + else if (!node_present_pages(node)) + node = node_to_mem_node(node); + freelist = get_partial(s, flags, node, c); if (freelist) @@ -2569,12 +2568,10 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, redo: if (unlikely(!node_match(page, node))) { - int searchnode = node; - if (node != NUMA_NO_NODE && !node_present_pages(node)) - searchnode = node_to_mem_node(node); + node = node_to_mem_node(node); - if (unlikely(!node_match(page, searchnode))) { + if (unlikely(!node_match(page, node))) { stat(s, ALLOC_NODE_MISMATCH); deactivate_slab(s, page, c->freelist, c); goto new_slab; -- 2.18.1
WARNING: multiple messages have this Message-ID (diff)
From: Srikar Dronamraju <srikar@linux.vnet.ibm.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: Sachin Sant <sachinp@linux.vnet.ibm.com>, Srikar Dronamraju <srikar@linux.vnet.ibm.com>, Michal Hocko <mhocko@kernel.org>, linux-mm@kvack.org, Kirill Tkhai <ktkhai@virtuozzo.com>, Mel Gorman <mgorman@suse.de>, Christopher Lameter <cl@linux.com>, Bharata B Rao <bharata@linux.ibm.com>, linuxppc-dev@lists.ozlabs.org, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Vlastimil Babka <vbabka@suse.cz> Subject: [PATCH 2/4] mm/slub: Use mem_node to allocate a new slab Date: Tue, 17 Mar 2020 18:47:51 +0530 [thread overview] Message-ID: <20200317131753.4074-3-srikar@linux.vnet.ibm.com> (raw) In-Reply-To: <20200317131753.4074-1-srikar@linux.vnet.ibm.com> Currently while allocating a slab for a offline node, we use its associated node_numa_mem to search for a partial slab. If we don't find a partial slab, we try allocating a slab from the offline node using __alloc_pages_node. However this is bound to fail. NIP [c00000000039a300] __alloc_pages_nodemask+0x130/0x3b0 LR [c00000000039a3c4] __alloc_pages_nodemask+0x1f4/0x3b0 Call Trace: [c0000008b36837f0] [c00000000039a3b4] __alloc_pages_nodemask+0x1e4/0x3b0 (unreliable) [c0000008b3683870] [c0000000003d1ff8] new_slab+0x128/0xcf0 [c0000008b3683950] [c0000000003d6060] ___slab_alloc+0x410/0x820 [c0000008b3683a40] [c0000000003d64a4] __slab_alloc+0x34/0x60 [c0000008b3683a70] [c0000000003d78b0] __kmalloc_node+0x110/0x490 [c0000008b3683af0] [c000000000343a08] kvmalloc_node+0x58/0x110 [c0000008b3683b30] [c0000000003ffd44] mem_cgroup_css_online+0x104/0x270 [c0000008b3683b90] [c000000000234e08] online_css+0x48/0xd0 [c0000008b3683bc0] [c00000000023dedc] cgroup_apply_control_enable+0x2ec/0x4d0 [c0000008b3683ca0] [c0000000002416f8] cgroup_mkdir+0x228/0x5f0 [c0000008b3683d10] [c000000000520360] kernfs_iop_mkdir+0x90/0xf0 [c0000008b3683d50] [c00000000043e400] vfs_mkdir+0x110/0x230 [c0000008b3683da0] [c000000000441ee0] do_mkdirat+0xb0/0x1a0 [c0000008b3683e20] [c00000000000b278] system_call+0x5c/0x68 Mitigate this by allocating the new slab from the node_numa_mem. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Cc: Mel Gorman <mgorman@suse.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Sachin Sant <sachinp@linux.vnet.ibm.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Christopher Lameter <cl@linux.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Kirill Tkhai <ktkhai@virtuozzo.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Bharata B Rao <bharata@linux.ibm.com> Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com> Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com> Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> --- mm/slub.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 1c55bf7892bf..fdf7f38f96e6 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1970,14 +1970,8 @@ static void *get_partial(struct kmem_cache *s, gfp_t flags, int node, struct kmem_cache_cpu *c) { void *object; - int searchnode = node; - if (node == NUMA_NO_NODE) - searchnode = numa_mem_id(); - else if (!node_present_pages(node)) - searchnode = node_to_mem_node(node); - - object = get_partial_node(s, get_node(s, searchnode), c, flags); + object = get_partial_node(s, get_node(s, node), c, flags); if (object || node != NUMA_NO_NODE) return object; @@ -2470,6 +2464,11 @@ static inline void *new_slab_objects(struct kmem_cache *s, gfp_t flags, WARN_ON_ONCE(s->ctor && (flags & __GFP_ZERO)); + if (node == NUMA_NO_NODE) + node = numa_mem_id(); + else if (!node_present_pages(node)) + node = node_to_mem_node(node); + freelist = get_partial(s, flags, node, c); if (freelist) @@ -2569,12 +2568,10 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, redo: if (unlikely(!node_match(page, node))) { - int searchnode = node; - if (node != NUMA_NO_NODE && !node_present_pages(node)) - searchnode = node_to_mem_node(node); + node = node_to_mem_node(node); - if (unlikely(!node_match(page, searchnode))) { + if (unlikely(!node_match(page, node))) { stat(s, ALLOC_NODE_MISMATCH); deactivate_slab(s, page, c->freelist, c); goto new_slab; -- 2.18.1
next prev parent reply other threads:[~2020-03-17 13:20 UTC|newest] Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-18 10:45 [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9 Sachin Sant 2020-02-18 10:50 ` Kirill Tkhai 2020-02-18 10:50 ` Kirill Tkhai 2020-02-18 11:01 ` Kirill Tkhai 2020-02-18 11:01 ` Kirill Tkhai 2020-02-18 11:35 ` Kirill Tkhai 2020-02-18 11:35 ` Kirill Tkhai 2020-02-18 11:40 ` Sachin Sant 2020-02-18 11:55 ` Michal Hocko 2020-02-18 11:55 ` Michal Hocko 2020-02-18 14:00 ` Sachin Sant 2020-02-18 14:00 ` Sachin Sant 2020-02-18 14:26 ` Michal Hocko 2020-02-18 14:26 ` Michal Hocko 2020-02-18 15:11 ` Sachin Sant 2020-02-18 15:11 ` Sachin Sant 2020-02-18 15:24 ` Michal Hocko 2020-02-18 15:24 ` Michal Hocko 2020-02-22 3:38 ` Christopher Lameter 2020-02-22 3:38 ` Christopher Lameter 2020-02-24 8:58 ` Michal Hocko 2020-02-24 8:58 ` Michal Hocko 2020-02-26 18:25 ` Christopher Lameter 2020-02-26 18:25 ` Christopher Lameter 2020-02-26 18:41 ` Michal Hocko 2020-02-26 18:41 ` Michal Hocko 2020-02-26 18:44 ` Christopher Lameter 2020-02-26 18:44 ` Christopher Lameter 2020-02-26 19:01 ` Michal Hocko 2020-02-26 19:01 ` Michal Hocko 2020-02-26 20:31 ` David Rientjes 2020-02-26 20:31 ` David Rientjes 2020-02-26 20:52 ` Michal Hocko 2020-02-26 20:52 ` Michal Hocko 2020-02-26 21:45 ` Vlastimil Babka 2020-02-26 21:45 ` Vlastimil Babka 2020-02-26 22:29 ` Vlastimil Babka 2020-02-26 22:29 ` Vlastimil Babka 2020-02-27 12:12 ` Michal Hocko 2020-02-27 12:12 ` Michal Hocko 2020-02-27 16:00 ` Sachin Sant 2020-02-27 16:00 ` Sachin Sant 2020-02-27 16:16 ` Vlastimil Babka 2020-02-27 18:26 ` Michal Hocko 2020-02-27 18:26 ` Michal Hocko 2020-03-10 15:01 ` Michal Hocko 2020-03-10 15:01 ` Michal Hocko 2020-03-12 12:18 ` Michael Ellerman 2020-03-12 12:18 ` Michael Ellerman 2020-03-12 16:51 ` Sachin Sant 2020-03-12 16:51 ` Sachin Sant 2020-03-13 10:48 ` Michael Ellerman 2020-03-13 10:48 ` Michael Ellerman 2020-03-13 11:12 ` Srikar Dronamraju 2020-03-13 11:12 ` Srikar Dronamraju 2020-03-13 11:35 ` Vlastimil Babka 2020-03-13 11:35 ` Vlastimil Babka 2020-03-14 8:10 ` Sachin Sant 2020-02-27 12:02 ` Michal Hocko 2020-02-27 12:02 ` Michal Hocko 2020-02-18 11:38 ` Sachin Sant 2020-02-18 11:53 ` Kirill Tkhai 2020-03-17 13:17 ` [PATCH 0/4] Fix kmalloc_node on offline nodes Srikar Dronamraju 2020-03-17 13:17 ` Srikar Dronamraju 2020-03-17 13:17 ` [PATCH 1/4] mm: Check for node_online in node_present_pages Srikar Dronamraju 2020-03-17 13:17 ` Srikar Dronamraju 2020-03-17 13:37 ` Srikar Dronamraju 2020-03-17 13:37 ` Srikar Dronamraju 2020-03-17 13:17 ` Srikar Dronamraju [this message] 2020-03-17 13:17 ` [PATCH 2/4] mm/slub: Use mem_node to allocate a new slab Srikar Dronamraju 2020-03-17 13:34 ` Vlastimil Babka 2020-03-17 13:34 ` Vlastimil Babka 2020-03-17 13:45 ` Srikar Dronamraju 2020-03-17 13:45 ` Srikar Dronamraju 2020-03-17 13:53 ` Vlastimil Babka 2020-03-17 13:53 ` Vlastimil Babka 2020-03-17 14:51 ` Srikar Dronamraju 2020-03-17 14:51 ` Srikar Dronamraju 2020-03-17 15:29 ` Vlastimil Babka 2020-03-17 15:29 ` Vlastimil Babka 2020-03-18 7:29 ` Srikar Dronamraju 2020-03-18 7:29 ` Srikar Dronamraju 2020-03-17 16:41 ` Srikar Dronamraju 2020-03-17 16:41 ` Srikar Dronamraju 2020-03-17 13:17 ` [PATCH 3/4] mm: Implement reset_numa_mem Srikar Dronamraju 2020-03-17 13:17 ` Srikar Dronamraju 2020-03-17 13:17 ` [PATCH 4/4] powerpc/numa: Set fallback nodes for offline nodes Srikar Dronamraju 2020-03-17 13:17 ` Srikar Dronamraju 2020-03-17 14:22 ` Bharata B Rao 2020-03-17 14:22 ` Bharata B Rao 2020-03-17 14:29 ` Srikar Dronamraju 2020-03-17 14:29 ` Srikar Dronamraju
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