From: Andrew Morton <akpm@linux-foundation.org>
To: bharata@linux.ibm.com, cl@linux.com, iamjoonsoo.kim@lge.com,
ktkhai@virtuozzo.com, mgorman@techsingularity.net,
mhocko@kernel.org, mm-commits@vger.kernel.org,
mpe@ellerman.id.au, nathanl@linux.ibm.com, penberg@kernel.org,
puvichakravarthy@in.ibm.com, rientjes@google.com,
sachinp@linux.vnet.ibm.com, srikar@linux.vnet.ibm.com,
stable@vger.kernel.org, vbabka@suse.cz
Subject: + mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch added to -mm tree
Date: Fri, 20 Mar 2020 16:48:25 -0700 [thread overview]
Message-ID: <20200320234825.GfL2XD8Hw%akpm@linux-foundation.org> (raw)
In-Reply-To: <20200305222751.6d781a3f2802d79510941e4e@linux-foundation.org>
The patch titled
Subject: mm, slub: prevent kmalloc_node crashes and memory leaks
has been added to the -mm tree. Its filename is
mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Vlastimil Babka <vbabka@suse.cz>
Subject: mm, slub: prevent kmalloc_node crashes and memory leaks
Sachin reports [1] a crash in SLUB __slab_alloc():
BUG: Kernel NULL pointer dereference on read at 0x000073b0
Faulting instruction address: 0xc0000000003d55f4
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
Modules linked in:
CPU: 19 PID: 1 Comm: systemd Not tainted 5.6.0-rc2-next-20200218-autotest #1
NIP: c0000000003d55f4 LR: c0000000003d5b94 CTR: 0000000000000000
REGS: c0000008b37836d0 TRAP: 0300 Not tainted (5.6.0-rc2-next-20200218-autotest)
MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24004844 XER: 00000000
CFAR: c00000000000dec4 DAR: 00000000000073b0 DSISR: 40000000 IRQMASK: 1
GPR00: c0000000003d5b94 c0000008b3783960 c00000000155d400 c0000008b301f500
GPR04: 0000000000000dc0 0000000000000002 c0000000003443d8 c0000008bb398620
GPR08: 00000008ba2f0000 0000000000000001 0000000000000000 0000000000000000
GPR12: 0000000024004844 c00000001ec52a00 0000000000000000 0000000000000000
GPR16: c0000008a1b20048 c000000001595898 c000000001750c18 0000000000000002
GPR20: c000000001750c28 c000000001624470 0000000fffffffe0 5deadbeef0000122
GPR24: 0000000000000001 0000000000000dc0 0000000000000002 c0000000003443d8
GPR28: c0000008b301f500 c0000008bb398620 0000000000000000 c00c000002287180
NIP [c0000000003d55f4] ___slab_alloc+0x1f4/0x760
LR [c0000000003d5b94] __slab_alloc+0x34/0x60
Call Trace:
[c0000008b3783960] [c0000000003d5734] ___slab_alloc+0x334/0x760 (unreliable)
[c0000008b3783a40] [c0000000003d5b94] __slab_alloc+0x34/0x60
[c0000008b3783a70] [c0000000003d6fa0] __kmalloc_node+0x110/0x490
[c0000008b3783af0] [c0000000003443d8] kvmalloc_node+0x58/0x110
[c0000008b3783b30] [c0000000003fee38] mem_cgroup_css_online+0x108/0x270
[c0000008b3783b90] [c000000000235aa8] online_css+0x48/0xd0
[c0000008b3783bc0] [c00000000023eaec] cgroup_apply_control_enable+0x2ec/0x4d0
[c0000008b3783ca0] [c000000000242318] cgroup_mkdir+0x228/0x5f0
[c0000008b3783d10] [c00000000051e170] kernfs_iop_mkdir+0x90/0xf0
[c0000008b3783d50] [c00000000043dc00] vfs_mkdir+0x110/0x230
[c0000008b3783da0] [c000000000441c90] do_mkdirat+0xb0/0x1a0
[c0000008b3783e20] [c00000000000b278] system_call+0x5c/0x68
This is a PowerPC platform with following NUMA topology:
available: 2 nodes (0-1)
node 0 cpus:
node 0 size: 0 MB
node 0 free: 0 MB
node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
node 1 size: 35247 MB
node 1 free: 30907 MB
node distances:
node 0 1
0: 10 40
1: 40 10
possible numa nodes: 0-31
This only happens with a mmotm patch "mm/memcontrol.c: allocate shrinker_map on
appropriate NUMA node" [2] which effectively calls kmalloc_node for each
possible node. SLUB however only allocates kmem_cache_node on online
N_NORMAL_MEMORY nodes, and relies on node_to_mem_node to return such valid node
for other nodes since commit a561ce00b09e ("slub: fall back to
node_to_mem_node() node if allocating on memoryless node"). This is however not
true in this configuration where the _node_numa_mem_ array is not initialized
for nodes 0 and 2-31, thus it contains zeroes and get_partial() ends up
accessing non-allocated kmem_cache_node.
A related issue was reported by Bharata (originally by Ramachandran) [3] where
a similar PowerPC configuration, but with mainline kernel without patch [2]
ends up allocating large amounts of pages by kmalloc-1k kmalloc-512. This seems
to have the same underlying issue with node_to_mem_node() not behaving as
expected, and might probably also lead to an infinite loop with
CONFIG_SLUB_CPU_PARTIAL [4].
This patch should fix both issues by not relying on node_to_mem_node() anymore
and instead simply falling back to NUMA_NO_NODE, when kmalloc_node(node) is
attempted for a node that's not online, or has no usable memory. The "usable
memory" condition is also changed from node_present_pages() to N_NORMAL_MEMORY
node state, as that is exactly the condition that SLUB uses to allocate
kmem_cache_node structures. The check in get_partial() is removed completely,
as the checks in ___slab_alloc() are now sufficient to prevent get_partial()
being reached with an invalid node.
[1] https://lore.kernel.org/linux-next/3381CD91-AB3D-4773-BA04-E7A072A63968@linux.vnet.ibm.com/
[2] https://lore.kernel.org/linux-mm/fff0e636-4c36-ed10-281c-8cdb0687c839@virtuozzo.com/
[3] https://lore.kernel.org/linux-mm/20200317092624.GB22538@in.ibm.com/
[4] https://lore.kernel.org/linux-mm/088b5996-faae-8a56-ef9c-5b567125ae54@suse.cz/
Link: http://lkml.kernel.org/r/20200320115533.9604-1-vbabka@suse.cz
Fixes: a561ce00b09e ("slub: fall back to node_to_mem_node() node if allocating on memoryless node")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Reported-by: PUVICHAKRAVARTHY RAMACHANDRAN <puvichakravarthy@in.ibm.com>
Tested-by: Bharata B Rao <bharata@linux.ibm.com>
Debugged-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
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: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/slub.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
--- a/mm/slub.c~mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks
+++ a/mm/slub.c
@@ -1973,8 +1973,6 @@ static void *get_partial(struct kmem_cac
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);
if (object || node != NUMA_NO_NODE)
@@ -2563,17 +2561,27 @@ static void *___slab_alloc(struct kmem_c
struct page *page;
page = c->page;
- if (!page)
+ if (!page) {
+ /*
+ * if the node is not online or has no normal memory, just
+ * ignore the node constraint
+ */
+ if (unlikely(node != NUMA_NO_NODE &&
+ !node_state(node, N_NORMAL_MEMORY)))
+ node = NUMA_NO_NODE;
goto new_slab;
+ }
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);
-
- if (unlikely(!node_match(page, searchnode))) {
+ /*
+ * same as above but node_match() being false already
+ * implies node != NUMA_NO_NODE
+ */
+ if (!node_state(node, N_NORMAL_MEMORY)) {
+ node = NUMA_NO_NODE;
+ goto redo;
+ } else {
stat(s, ALLOC_NODE_MISMATCH);
deactivate_slab(s, page, c->freelist, c);
goto new_slab;
_
Patches currently in -mm which might be from vbabka@suse.cz are
mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
revert-topology-add-support-for-node_to_mem_node-to-determine-the-fallback-node.patch
mm-compaction-fully-assume-capture-is-not-null-in-compact_zone_order.patch
mm-hugetlb-remove-unnecessary-memory-fetch-in-pageheadhuge.patch
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: bharata@linux.ibm.com, cl@linux.com, iamjoonsoo.kim@lge.com,
ktkhai@virtuozzo.com, mgorman@techsingularity.net,
mhocko@kernel.org, mm-commits@vger.kernel.org,
mpe@ellerman.id.au, nathanl@linux.ibm.com, penberg@kernel.org,
puvichakravarthy@in.ibm.com, rientjes@google.com,
sachinp@linux.vnet.ibm.com, srikar@linux.vnet.ibm.com,
stable@vger.kernel.org, vbabka@suse.cz
Subject: + mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch added to -mm tree
Date: Fri, 20 Mar 2020 16:48:25 -0700 [thread overview]
Message-ID: <20200320234825.GfL2XD8Hw%akpm@linux-foundation.org> (raw)
In-Reply-To: <20200305222751.6d781a3f2802d79510941e4e@linux-foundation.org>
The patch titled
Subject: mm, slub: prevent kmalloc_node crashes and memory leaks
has been added to the -mm tree. Its filename is
mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Vlastimil Babka <vbabka@suse.cz>
Subject: mm, slub: prevent kmalloc_node crashes and memory leaks
Sachin reports [1] a crash in SLUB __slab_alloc():
BUG: Kernel NULL pointer dereference on read at 0x000073b0
Faulting instruction address: 0xc0000000003d55f4
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
Modules linked in:
CPU: 19 PID: 1 Comm: systemd Not tainted 5.6.0-rc2-next-20200218-autotest #1
NIP: c0000000003d55f4 LR: c0000000003d5b94 CTR: 0000000000000000
REGS: c0000008b37836d0 TRAP: 0300 Not tainted (5.6.0-rc2-next-20200218-autotest)
MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24004844 XER: 00000000
CFAR: c00000000000dec4 DAR: 00000000000073b0 DSISR: 40000000 IRQMASK: 1
GPR00: c0000000003d5b94 c0000008b3783960 c00000000155d400 c0000008b301f500
GPR04: 0000000000000dc0 0000000000000002 c0000000003443d8 c0000008bb398620
GPR08: 00000008ba2f0000 0000000000000001 0000000000000000 0000000000000000
GPR12: 0000000024004844 c00000001ec52a00 0000000000000000 0000000000000000
GPR16: c0000008a1b20048 c000000001595898 c000000001750c18 0000000000000002
GPR20: c000000001750c28 c000000001624470 0000000fffffffe0 5deadbeef0000122
GPR24: 0000000000000001 0000000000000dc0 0000000000000002 c0000000003443d8
GPR28: c0000008b301f500 c0000008bb398620 0000000000000000 c00c000002287180
NIP [c0000000003d55f4] ___slab_alloc+0x1f4/0x760
LR [c0000000003d5b94] __slab_alloc+0x34/0x60
Call Trace:
[c0000008b3783960] [c0000000003d5734] ___slab_alloc+0x334/0x760 (unreliable)
[c0000008b3783a40] [c0000000003d5b94] __slab_alloc+0x34/0x60
[c0000008b3783a70] [c0000000003d6fa0] __kmalloc_node+0x110/0x490
[c0000008b3783af0] [c0000000003443d8] kvmalloc_node+0x58/0x110
[c0000008b3783b30] [c0000000003fee38] mem_cgroup_css_online+0x108/0x270
[c0000008b3783b90] [c000000000235aa8] online_css+0x48/0xd0
[c0000008b3783bc0] [c00000000023eaec] cgroup_apply_control_enable+0x2ec/0x4d0
[c0000008b3783ca0] [c000000000242318] cgroup_mkdir+0x228/0x5f0
[c0000008b3783d10] [c00000000051e170] kernfs_iop_mkdir+0x90/0xf0
[c0000008b3783d50] [c00000000043dc00] vfs_mkdir+0x110/0x230
[c0000008b3783da0] [c000000000441c90] do_mkdirat+0xb0/0x1a0
[c0000008b3783e20] [c00000000000b278] system_call+0x5c/0x68
This is a PowerPC platform with following NUMA topology:
available: 2 nodes (0-1)
node 0 cpus:
node 0 size: 0 MB
node 0 free: 0 MB
node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
node 1 size: 35247 MB
node 1 free: 30907 MB
node distances:
node 0 1
0: 10 40
1: 40 10
possible numa nodes: 0-31
This only happens with a mmotm patch "mm/memcontrol.c: allocate shrinker_map on
appropriate NUMA node" [2] which effectively calls kmalloc_node for each
possible node. SLUB however only allocates kmem_cache_node on online
N_NORMAL_MEMORY nodes, and relies on node_to_mem_node to return such valid node
for other nodes since commit a561ce00b09e ("slub: fall back to
node_to_mem_node() node if allocating on memoryless node"). This is however not
true in this configuration where the _node_numa_mem_ array is not initialized
for nodes 0 and 2-31, thus it contains zeroes and get_partial() ends up
accessing non-allocated kmem_cache_node.
A related issue was reported by Bharata (originally by Ramachandran) [3] where
a similar PowerPC configuration, but with mainline kernel without patch [2]
ends up allocating large amounts of pages by kmalloc-1k kmalloc-512. This seems
to have the same underlying issue with node_to_mem_node() not behaving as
expected, and might probably also lead to an infinite loop with
CONFIG_SLUB_CPU_PARTIAL [4].
This patch should fix both issues by not relying on node_to_mem_node() anymore
and instead simply falling back to NUMA_NO_NODE, when kmalloc_node(node) is
attempted for a node that's not online, or has no usable memory. The "usable
memory" condition is also changed from node_present_pages() to N_NORMAL_MEMORY
node state, as that is exactly the condition that SLUB uses to allocate
kmem_cache_node structures. The check in get_partial() is removed completely,
as the checks in ___slab_alloc() are now sufficient to prevent get_partial()
being reached with an invalid node.
[1] https://lore.kernel.org/linux-next/3381CD91-AB3D-4773-BA04-E7A072A63968@linux.vnet.ibm.com/
[2] https://lore.kernel.org/linux-mm/fff0e636-4c36-ed10-281c-8cdb0687c839@virtuozzo.com/
[3] https://lore.kernel.org/linux-mm/20200317092624.GB22538@in.ibm.com/
[4] https://lore.kernel.org/linux-mm/088b5996-faae-8a56-ef9c-5b567125ae54@suse.cz/
Link: http://lkml.kernel.org/r/20200320115533.9604-1-vbabka@suse.cz
Fixes: a561ce00b09e ("slub: fall back to node_to_mem_node() node if allocating on memoryless node")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Reported-by: PUVICHAKRAVARTHY RAMACHANDRAN <puvichakravarthy@in.ibm.com>
Tested-by: Bharata B Rao <bharata@linux.ibm.com>
Debugged-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
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: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/slub.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
--- a/mm/slub.c~mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks
+++ a/mm/slub.c
@@ -1973,8 +1973,6 @@ static void *get_partial(struct kmem_cac
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);
if (object || node != NUMA_NO_NODE)
@@ -2563,17 +2561,27 @@ static void *___slab_alloc(struct kmem_c
struct page *page;
page = c->page;
- if (!page)
+ if (!page) {
+ /*
+ * if the node is not online or has no normal memory, just
+ * ignore the node constraint
+ */
+ if (unlikely(node != NUMA_NO_NODE &&
+ !node_state(node, N_NORMAL_MEMORY)))
+ node = NUMA_NO_NODE;
goto new_slab;
+ }
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);
next prev parent reply other threads:[~2020-03-20 23:48 UTC|newest]
Thread overview: 212+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 6:27 incoming Andrew Morton
2020-03-06 6:28 ` [patch 1/7] mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa Andrew Morton
2020-03-06 6:28 ` [patch 2/7] mm: fix possible PMD dirty bit lost in set_pmd_migration_entry() Andrew Morton
2020-03-06 6:28 ` [patch 3/7] mm: avoid data corruption on CoW fault into PFN-mapped VMA Andrew Morton
2020-03-06 6:28 ` [patch 4/7] fat: fix uninit-memory access for partial initialized inode Andrew Morton
2020-03-06 6:28 ` Andrew Morton
2020-03-06 6:28 ` [patch 5/7] mm/z3fold.c: do not include rwlock.h directly Andrew Morton
2020-03-06 6:28 ` [patch 6/7] mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled Andrew Morton
2020-03-06 6:28 ` [patch 7/7] arch/Kconfig: update HAVE_RELIABLE_STACKTRACE description Andrew Morton
2020-03-07 20:49 ` + proc-speed-up-proc-statm.patch added to -mm tree Andrew Morton
2020-03-07 20:58 ` + mm-hotplug-fix-hot-remove-failure-in-sparsememvmemmap-case.patch " Andrew Morton
2020-03-07 21:01 ` + mm-use-fallthrough.patch " Andrew Morton
2020-03-07 21:53 ` + mm-gup-track-foll_pin-pages-fix.patch " Andrew Morton
2020-03-07 22:10 ` + mm-shmem-add-vmstat-for-hugepage-fallback.patch " Andrew Morton
2020-03-07 22:10 ` + mm-thp-track-fallbacks-due-to-failed-memcg-charges-separately.patch " Andrew Morton
2020-03-07 22:39 ` + mmpage_alloccma-conditionally-prefer-cma-pageblocks-for-movable-allocations.patch " Andrew Morton
2020-03-07 23:04 ` + mm-memory_hotplug-drop-the-flags-field-from-struct-mhp_restrictions.patch " Andrew Morton
2020-03-07 23:04 ` + mm-memory_hotplug-rename-mhp_restrictions-to-mhp_params.patch " Andrew Morton
2020-03-07 23:04 ` + x86-mm-thread-pgprot_t-through-init_memory_mapping.patch " Andrew Morton
2020-03-07 23:04 ` + x86-mm-introduce-__set_memory_prot.patch " Andrew Morton
2020-03-07 23:04 ` + powerpc-mm-thread-pgprot_t-through-create_section_mapping.patch " Andrew Morton
2020-03-07 23:04 ` + mm-memory_hotplug-add-pgprot_t-to-mhp_params.patch " Andrew Morton
2020-03-07 23:05 ` + mm-memremap-set-caching-mode-for-pci-p2pdma-memory-to-wc.patch " Andrew Morton
2020-03-07 23:11 ` + kasan-detect-negative-size-in-memory-operation-function-fix.patch " Andrew Morton
2020-03-07 23:25 ` + mm-gup-track-foll_pin-pages-fix-2.patch " Andrew Morton
2020-03-11 1:46 ` John Hubbard
2020-03-11 10:13 ` Claudio Imbrenda
2020-03-12 0:14 ` John Hubbard
2020-03-12 0:51 ` Andrew Morton
2020-03-12 0:51 ` Andrew Morton
2020-03-07 23:25 ` + mm-gup-writeback-add-callbacks-for-inaccessible-pages.patch " Andrew Morton
2020-03-07 23:33 ` + mm-sparsemem-use-wrapped-macros-instead-of-open-coding.patch " Andrew Morton
2020-03-09 23:34 ` + checkpatch-check-proper-licensing-of-devicetree-bindings.patch " Andrew Morton
2020-03-09 23:37 ` + kcov-cleanup-debug-messages.patch " Andrew Morton
2020-03-09 23:37 ` + kcov-collect-coverage-from-interrupts.patch " Andrew Morton
2020-03-09 23:37 ` + usb-core-kcov-collect-coverage-from-usb-complete-callback.patch " Andrew Morton
2020-03-10 0:49 ` + mm-swap_slotsc-dont-reset-the-cache-slot-after-use.patch " Andrew Morton
2020-03-10 0:51 ` + mm-hotplug-fix-hot-remove-failure-in-sparsememvmemmap-case-fix.patch " Andrew Morton
2020-03-10 0:57 ` + linux-bitsh-add-compile-time-sanity-check-of-genmask-inputs.patch " Andrew Morton
2020-03-10 2:29 ` + mm-page_alloc-use-free_area_empty-instead-of-open-coding.patch " Andrew Morton
2020-03-10 2:50 ` + mm-special-create-generic-fallbacks-for-pte_special-and-pte_mkspecial.patch " Andrew Morton
2020-03-10 2:53 ` + ocfs2-cluster-replace-zero-length-array-with-flexible-array-member.patch " Andrew Morton
2020-03-10 2:54 ` + ocfs2-dlm-replace-zero-length-array-with-flexible-array-member.patch " Andrew Morton
2020-03-10 2:54 ` + ocfs2-ocfs2_fsh-replace-zero-length-array-with-flexible-array-member.patch " Andrew Morton
2020-03-10 2:56 ` + mm-page_allocc-micro-optimisation-remove-unnecessary-branch.patch " Andrew Morton
2020-03-10 3:38 ` + mm-gup-rename-nonblocking-to-locked-where-proper.patch " Andrew Morton
2020-03-10 3:38 ` + mm-gup-fix-__get_user_pages-on-fault-retry-of-hugetlb.patch " Andrew Morton
2020-03-10 3:38 ` + mm-introduce-fault_signal_pending.patch " Andrew Morton
2020-03-10 3:38 ` + x86-mm-use-helper-fault_signal_pending.patch " Andrew Morton
2020-03-10 3:38 ` + arc-mm-use-helper-fault_signal_pending.patch " Andrew Morton
2020-03-10 3:38 ` + arm64-mm-use-helper-fault_signal_pending.patch " Andrew Morton
2020-03-10 3:38 ` + powerpc-mm-use-helper-fault_signal_pending.patch " Andrew Morton
2020-03-10 3:38 ` + sh-mm-use-helper-fault_signal_pending.patch " Andrew Morton
2020-03-10 3:38 ` + mm-return-faster-for-non-fatal-signals-in-user-mode-faults.patch " Andrew Morton
2020-03-10 3:38 ` + userfaultfd-dont-retake-mmap_sem-to-emulate-nopage.patch " Andrew Morton
2020-03-10 3:38 ` + mm-introduce-fault_flag_default.patch " Andrew Morton
2020-03-10 3:39 ` + mm-introduce-fault_flag_interruptible.patch " Andrew Morton
2020-03-10 3:39 ` + mm-allow-vm_fault_retry-for-multiple-times.patch " Andrew Morton
2020-03-10 3:39 ` + mm-gup-allow-vm_fault_retry-for-multiple-times.patch " Andrew Morton
2020-03-10 3:39 ` + mm-gup-allow-to-react-to-fatal-signals.patch " Andrew Morton
2020-03-10 3:39 ` + mm-userfaultfd-honor-fault_flag_killable-in-fault-path.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-add-helper-for-writeprotect-check.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-hook-userfault-handler-to-write-protection-fault.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-add-wp-pagetable-tracking-to-x86.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-userfaultfd_pte-huge_pmd_wp-helpers.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-add-uffdio_copy_mode_wp.patch " Andrew Morton
2020-03-10 3:41 ` + mm-merge-parameters-for-change_protection.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-apply-_page_uffd_wp-bit.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-drop-_page_uffd_wp-properly-when-fork.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-add-pmd_swp_uffd_wp-helpers.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-support-swap-and-page-migration.patch " Andrew Morton
2020-03-10 3:41 ` + khugepaged-skip-collapse-if-uffd-wp-detected.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-support-write-protection-for-userfault-vma-range.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-add-the-writeprotect-api-to-userfaultfd-ioctl.patch " Andrew Morton
2020-03-10 3:41 ` + userfaultfd-wp-enabled-write-protection-in-userfaultfd-api.patch " Andrew Morton
2020-03-10 3:42 ` + userfaultfd-wp-dont-wake-up-when-doing-write-protect.patch " Andrew Morton
2020-03-10 3:42 ` + userfaultfd-wp-uffdio_register_mode_wp-documentation-update.patch " Andrew Morton
2020-03-10 3:42 ` + userfaultfd-wp-declare-_uffdio_writeprotect-conditionally.patch " Andrew Morton
2020-03-10 3:42 ` + userfaultfd-selftests-refactor-statistics.patch " Andrew Morton
2020-03-10 3:42 ` + userfaultfd-selftests-add-write-protect-test.patch " Andrew Morton
2020-03-10 23:59 ` + kmod-make-request_module-return-an-error-when-autoloading-is-disabled.patch " Andrew Morton
2020-03-11 0:19 ` + mm-filemapc-remove-unused-argument-from-shrink_readahead_size_eio.patch " Andrew Morton
2020-03-11 22:08 ` + mm-hugetlb-remove-unnecessary-memory-fetch-in-pageheadhuge.patch " Andrew Morton
2020-03-11 22:10 ` + fs_parse-remove-pr_notice-about-each-validation.patch " Andrew Morton
2020-03-11 23:26 ` + mmpage_alloccma-conditionally-prefer-cma-pageblocks-for-movable-allocations-fix.patch " Andrew Morton
2020-03-11 23:29 ` + mm-hugetlb-optionally-allocate-gigantic-hugepages-using-cma.patch " Andrew Morton
2020-03-11 23:33 ` + virtio-balloon-switch-back-to-oom-handler-for-virtio_balloon_f_deflate_on_oom.patch " Andrew Morton
2020-03-11 23:38 ` + kasan-fix-wstringop-overflow-warning.patch " Andrew Morton
2020-03-11 23:42 ` + mm-fix-tick-timer-stall-during-deferred-page-init.patch " Andrew Morton
2020-03-12 0:00 ` + drivers-base-memory-map-mmop_offline-to-0.patch " Andrew Morton
2020-03-12 0:00 ` + drivers-base-memory-store-mapping-between-mmop_-and-string-in-an-array.patch " Andrew Morton
2020-03-12 0:00 ` + mm-memory_hotplug-convert-memhp_auto_online-to-store-an-online_type.patch " Andrew Morton
2020-03-12 0:00 ` + mm-memory_hotplug-allow-to-specify-a-default-online_type.patch " Andrew Morton
2020-03-12 0:18 ` + mm-debug-add-tests-validating-architecture-page-table-helpers.patch " Andrew Morton
2020-03-12 0:25 ` + mm-swap_slotsc-assignreset-cache-slot-by-value-directly.patch " Andrew Morton
2020-03-12 0:25 ` [alternative-merged] mm-swap_slotsc-dont-reset-the-cache-slot-after-use.patch removed from " Andrew Morton
2020-03-12 0:33 ` + mm-introduce-fault_signal_pending-fix.patch added to " Andrew Morton
2020-03-12 0:34 ` [failures] mm-sparsemem-use-wrapped-macros-instead-of-open-coding.patch removed from " Andrew Morton
2020-03-12 1:04 ` + kasan-detect-negative-size-in-memory-operation-function-fix-2.patch added to " Andrew Morton
2020-03-12 1:08 ` + page-flags-fix-a-crash-at-setpageerrorthp_swap.patch " Andrew Morton
2020-03-12 1:11 ` + mm-page_alloc-simplify-page_is_buddy-for-better-code-readability.patch " Andrew Morton
2020-03-12 1:17 ` + mm-special-create-generic-fallbacks-for-pte_special-and-pte_mkspecial-v3.patch " Andrew Morton
2020-03-12 2:40 ` + memcg-fix-null-pointer-dereference-in-__mem_cgroup_usage_unregister_event-fix.patch " Andrew Morton
2020-03-12 2:58 ` + list-prevent-compiler-reloads-inside-safe-list-iteration.patch " Andrew Morton
2020-03-14 14:13 ` Paul E. McKenney
2020-03-12 3:14 ` + mm-clarify-a-confusing-comment-of-remap_pfn_range.patch " Andrew Morton
2020-03-12 4:12 ` mmotm 2020-03-11-21-11 uploaded Andrew Morton
2020-03-12 15:03 ` mmotm 2020-03-11-21-11 uploaded (sound/soc/codecs/wcd9335.c) Randy Dunlap
2020-03-12 16:59 ` Srinivas Kandagatla
2020-03-13 4:52 ` Masahiro Yamada
2020-03-13 4:52 ` Masahiro Yamada
2020-03-12 22:29 ` + fs-filesystemsc-downgrade-user-reachable-warn_once-to-pr_warn_once.patch added to -mm tree Andrew Morton
2020-03-12 22:29 ` + docs-admin-guide-document-the-kernelmodprobe-sysctl.patch " Andrew Morton
2020-03-12 22:29 ` + selftests-kmod-test-disabling-module-autoloading.patch " Andrew Morton
2020-03-12 22:35 ` + mm-memcg-fix-corruption-on-64-bit-divisor-in-memoryhigh-throttling.patch " Andrew Morton
2020-03-12 22:35 ` + mm-memcg-throttle-allocators-based-on-ancestral-memoryhigh.patch " Andrew Morton
2020-03-12 22:44 ` + mm-memcg-prevent-memoryhigh-load-store-tearing.patch " Andrew Morton
2020-03-12 22:45 ` + mm-memcg-prevent-memorymax-load-tearing.patch " Andrew Morton
2020-03-12 22:45 ` + mm-memcg-prevent-memorylow-load-store-tearing.patch " Andrew Morton
2020-03-12 22:45 ` + mm-memcg-prevent-memorymin-load-store-tearing.patch " Andrew Morton
2020-03-12 22:45 ` + mm-memcg-prevent-memoryswapmax-load-tearing.patch " Andrew Morton
2020-03-12 22:45 ` + mm-memcg-prevent-mem_cgroup_protected-store-tearing.patch " Andrew Morton
2020-03-12 22:46 ` + mm-memcg-bypass-high-reclaim-iteration-for-cgroup-hierarchy-root.patch " Andrew Morton
2020-03-12 22:47 ` [failures] hugetlbfs-use-i_mmap_rwsem-for-more-pmd-sharing-synchronization.patch removed from " Andrew Morton
2020-03-12 22:47 ` [failures] hugetlbfs-use-i_mmap_rwsem-to-address-page-fault-truncate-race.patch " Andrew Morton
2020-03-12 22:53 ` + mm-sparsec-use-kvmalloc_node-kvfree-to-alloc-free-memmap-for-the-classic-sparse.patch added to " Andrew Morton
2020-03-12 23:41 ` + mm-sparsec-introduce-new-function-fill_subsection_map.patch " Andrew Morton
2020-03-12 23:41 ` + mm-sparsec-introduce-a-new-function-clear_subsection_map.patch " Andrew Morton
2020-03-12 23:41 ` + mm-sparsec-only-use-subsection-map-in-vmemmap-case.patch " Andrew Morton
2020-03-12 23:41 ` + mm-sparsec-add-note-about-only-vmemmap-supporting-sub-section-hotplug.patch " Andrew Morton
2020-03-12 23:41 ` + mm-sparsec-move-subsection_map-related-functions-together.patch " Andrew Morton
2020-03-12 23:43 ` + mm-make-may_enter_fs-bool-in-shrink_page_list.patch " Andrew Morton
2020-03-12 23:44 ` + stackdepot-check-depot_index-before-accessing-the-stack-slab-fix.patch " Andrew Morton
2020-03-13 0:26 ` + mm-do-not-allow-madv_pageout-for-cow-pages.patch " Andrew Morton
2020-03-13 0:26 ` Andrew Morton
2020-03-13 0:32 ` + mm-gup-track-foll_pin-pages-fix-2-fix.patch " Andrew Morton
2020-03-13 3:05 ` + a.patch " Andrew Morton
2020-03-13 3:05 ` + mm-hugetlb-optionally-allocate-gigantic-hugepages-using-cma-fix.patch " Andrew Morton
2020-03-13 3:13 ` + kasan-stackdepot-move-filter_irq_stacks-to-stackdepotc-fix-1.patch " Andrew Morton
2020-03-13 3:13 ` + kasan-stackdepot-move-filter_irq_stacks-to-stackdepotc-fix-2.patch " Andrew Morton
2020-03-13 3:25 ` + selftests-vm-fix-map_hugetlb-length-used-for-testing-read-and-write.patch " Andrew Morton
2020-03-13 4:49 ` mmotm 2020-03-12-21-49 uploaded Andrew Morton
2020-03-18 2:58 ` + proc-inline-vma_stop-into-m_stop.patch added to -mm tree Andrew Morton
2020-03-18 2:58 ` + proc-remove-m_cache_vma.patch " Andrew Morton
2020-03-18 2:58 ` + proc-use-ppos-instead-of-m-version.patch " Andrew Morton
2020-03-18 2:58 ` + seq_file-remove-m-version.patch " Andrew Morton
2020-03-18 2:58 ` + proc-inline-m_next_vma-into-m_next.patch " Andrew Morton
2020-03-18 2:59 ` + mm-kmemleak-silence-kcsan-splats-in-checksum.patch " Andrew Morton
2020-03-18 3:07 ` + mm-swap-make-page_evictable-inline.patch " Andrew Morton
2020-03-18 3:07 ` + mm-swap-use-smp_mb__after_atomic-to-order-lru-bit-set.patch " Andrew Morton
2020-03-18 3:12 ` + mm-mmu_notifier-silence-prove_rcu_list-warnings.patch " Andrew Morton
2020-03-18 3:19 ` + lib-test_lockup-test-module-to-generate-lockups-fix.patch " Andrew Morton
2020-03-18 3:25 ` + ocfs2-roll-back-the-reference-count-modification-of-the-parent-directory-if-an-error-occurs.patch " Andrew Morton
2020-03-18 4:08 ` + hv_balloon-dont-check-for-memhp_auto_online-manually-fix.patch " Andrew Morton
2020-03-18 4:08 ` + drivers-base-memory-rename-mmop_online_keep-to-mmop_online.patch " Andrew Morton
2020-03-18 4:08 ` + drivers-base-memory-map-mmop_offline-to-0.patch " Andrew Morton
2020-03-18 4:08 ` + drivers-base-memory-store-mapping-between-mmop_-and-string-in-an-array.patch " Andrew Morton
2020-03-18 4:08 ` + powernv-memtrace-always-online-added-memory-blocks.patch " Andrew Morton
2020-03-18 4:08 ` + hv_balloon-dont-check-for-memhp_auto_online-manually.patch " Andrew Morton
2020-03-18 4:08 ` + hv_balloon-dont-check-for-memhp_auto_online-manually-fix.patch " Andrew Morton
2020-03-18 4:08 ` + mm-memory_hotplug-unexport-memhp_auto_online.patch " Andrew Morton
2020-03-18 4:08 ` + mm-memory_hotplug-convert-memhp_auto_online-to-store-an-online_type.patch " Andrew Morton
2020-03-18 4:08 ` + mm-memory_hotplug-allow-to-specify-a-default-online_type.patch " Andrew Morton
2020-03-18 4:57 ` + mm-code-cleanup-for-madv_free.patch " Andrew Morton
2020-03-18 5:02 ` + mm-hugetlb-fix-build-failure-with-hugetlb_page-but-not-hugebtlbfs.patch " Andrew Morton
2020-03-18 20:21 ` + mm-compactionc-clean-code-by-removing-unnecessary-assignment.patch " Andrew Morton
2020-03-18 20:31 ` + mm-hugetlb-fix-hugetlb_cma_reserve-if-config_numa-isnt-set.patch " Andrew Morton
2020-03-18 20:39 ` + mm-clarify-a-confusing-comment-for-vm_iomap_memory.patch " Andrew Morton
2020-03-18 21:03 ` + psi-move-pf_memstall-out-of-task-flags.patch " Andrew Morton
2020-03-18 21:08 ` + ocfs2-use-scnprintf-for-avoiding-potential-buffer-overflow.patch " Andrew Morton
2020-03-18 21:12 ` + mm-memcg-make-memoryoomgroup-tolerable-to-task-migration.patch " Andrew Morton
2020-03-18 21:14 ` [to-be-updated] mm-swap-make-page_evictable-inline.patch removed from " Andrew Morton
2020-03-18 21:14 ` [to-be-updated] mm-swap-use-smp_mb__after_atomic-to-order-lru-bit-set.patch " Andrew Morton
2020-03-18 21:19 ` + memremap-remove-stale-comments.patch added to " Andrew Morton
2020-03-18 21:30 ` + hugetlbfs-use-i_mmap_rwsem-for-more-pmd-sharing-synchronization.patch " Andrew Morton
2020-03-18 21:30 ` + hugetlbfs-use-i_mmap_rwsem-to-address-page-fault-truncate-race.patch " Andrew Morton
2020-03-20 23:36 ` + mm-dmapoolc-micro-optimisation-remove-unnecessary-branch.patch " Andrew Morton
2020-03-20 23:48 ` Andrew Morton [this message]
2020-03-20 23:48 ` + mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch " Andrew Morton
2020-03-20 23:48 ` + revert-topology-add-support-for-node_to_mem_node-to-determine-the-fallback-node.patch " Andrew Morton
2020-03-20 23:55 ` + mmap-remove-inline-of-vm_unmapped_area.patch " Andrew Morton
2020-03-20 23:55 ` + mm-mmap-add-trace-point-of-vm_unmapped_area.patch " Andrew Morton
2020-03-21 0:23 ` [to-be-updated] kcov-cleanup-debug-messages.patch removed from " Andrew Morton
2020-03-21 0:23 ` [to-be-updated] kcov-collect-coverage-from-interrupts.patch " Andrew Morton
2020-03-21 0:23 ` [to-be-updated] usb-core-kcov-collect-coverage-from-usb-complete-callback.patch " Andrew Morton
2020-03-21 0:27 ` + kcov-cleanup-debug-messages.patch added to " Andrew Morton
2020-03-21 0:27 ` + kcov-fix-potential-use-after-free-in-kcov_remote_start.patch " Andrew Morton
2020-03-21 0:27 ` + kcov-move-t-kcov-assignments-into-kcov_start-stop.patch " Andrew Morton
2020-03-21 0:27 ` + kcov-move-t-kcov_sequence-assignment.patch " Andrew Morton
2020-03-21 0:27 ` + kcov-use-t-kcov_mode-as-enabled-indicator.patch " Andrew Morton
2020-03-21 0:27 ` + kcov-collect-coverage-from-interrupts.patch " Andrew Morton
2020-03-21 0:27 ` + usb-core-kcov-collect-coverage-from-usb-complete-callback.patch " Andrew Morton
2020-03-21 0:40 ` + dynamic_debug-use-address-of-operator-on-section-symbols.patch " Andrew Morton
2020-03-21 0:45 ` + mm-vmscanc-do_try_to_free_pages-clean-code-by-removing-unnecessary-assignment.patch " Andrew Morton
2020-03-21 0:54 ` + mm-compaction-disable-compact_unevictable_allowed-on-rt-v5.patch " Andrew Morton
2020-03-21 1:22 ` + mm-swap-make-page_evictable-inline.patch " Andrew Morton
2020-03-21 1:22 ` + mm-swap-use-smp_mb__after_atomic-to-order-lru-bit-set.patch " Andrew Morton
2020-03-21 2:07 ` + sparcx86-vdso-remove-meaningless-undefining-config_optimize_inlining.patch " Andrew Morton
2020-03-21 2:07 ` + compiler-remove-config_optimize_inlining-entirely.patch " Andrew Morton
2020-03-21 2:13 ` + mm-swap-make-page_evictable-inline-fix.patch " Andrew Morton
2020-03-21 2:23 ` + selftests-kmod-fix-handling-test-numbers-above-9.patch " Andrew Morton
2020-03-21 2:42 ` + mm-hugetlbc-fix-printk-format-warning-for-32-bit-phys_addr_t.patch " Andrew Morton
2020-03-21 2:42 ` + mm-hugetlbc-fix-printk-format-warning-for-32-bit-phys_addr_t-fix.patch " Andrew Morton
2020-03-21 2:48 ` [to-be-updated] mm-sparsec-use-kvmalloc_node-kvfree-to-alloc-free-memmap-for-the-classic-sparse.patch removed from " Andrew Morton
2020-03-21 2:48 ` + mm-sparsec-use-kvmalloc-kvfree-to-alloc-free-memmap-for-the-classic-sparse.patch added to " Andrew Morton
2020-03-21 3:05 ` + mm-memory_hotplug-use-__pfn_to_section-instead-of-open-coding.patch " Andrew Morton
2020-03-21 20:24 ` + mm-swap_statec-use-the-same-way-to-count-page-in-_swap_cache.patch " Andrew Morton
2020-03-21 20:36 ` + change-email-address-for-pali-rohar.patch " Andrew Morton
2020-03-21 20:41 ` + hugetlb_cgroup-fix-illegal-access-to-memory.patch " Andrew Morton
2020-03-21 20:43 ` + scripts-spellingtxt-add-more-spellings-to-spellingtxt.patch " Andrew Morton
2020-03-21 21:14 ` + mm-sparsec-move-subsection_map-related-functions-together-fix.patch " Andrew Morton
2020-03-21 22:17 ` mmotm 2020-03-21-15-17 uploaded Andrew Morton
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