The patch titled
Subject: __mod_memcg_lruvec_state(): enhance diagnostics
has been added to the -mm mm-unstable branch. Its filename is
__mod_memcg_lruvec_state-enhance-diagnostics.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/__mod_memcg_lruvec_state-enhance-diagnostics.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: __mod_memcg_lruvec_state(): enhance diagnostics
Date: Wed Apr 3 05:42:47 PM PDT 2024
sysbot reports a warning
(https://lkml.kernel.org/r/0000000000007545d00615188a03@xxxxxxxxxx). Add
additional info to perhaps help with this.
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/mm/memcontrol.c~__mod_memcg_lruvec_state-enhance-diagnostics
+++ a/mm/memcontrol.c
@@ -860,10 +860,12 @@ void __mod_memcg_lruvec_state(struct lru
case NR_ANON_THPS:
case NR_SHMEM_PMDMAPPED:
case NR_FILE_PMDMAPPED:
- WARN_ON_ONCE(!in_task());
+ if (WARN_ON_ONCE(!in_task()))
+ pr_warn("stat item index: %d\n", idx);
break;
default:
- VM_WARN_ON_IRQS_ENABLED();
+ if (VM_WARN_ON_IRQS_ENABLED())
+ pr_warn("stat item index: %d\n", idx);
}
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm-sparc-change-pxd_huge-behavior-to-exclude-swap-entries-fix.patch
mm-hold-ptl-from-the-first-pte-while-reclaiming-a-large-folio-fix.patch
sh-remove-use-of-pg_arch_1-on-individual-pages-fix.patch
mm-gup-drop-folio_fast_pin_allowed-in-hugepd-processing-fix.patch
__mod_memcg_lruvec_state-enhance-diagnostics.patch
