* + mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch added to mm-unstable branch
@ 2026-07-01 3:42 Andrew Morton
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2026-07-01 3:42 UTC (permalink / raw)
To: mm-commits, ye.liu, akpm
The patch titled
Subject: mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()
has been added to the -mm mm-unstable branch. Its filename is
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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 via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()
Date: Wed, 1 Jul 2026 09:22:32 +0800
The free_ts_nsec field is a free-event timestamp, but it was printed in
the allocation summary line alongside ts_nsec (allocation time). Move it
to the free section where it logically belongs, together with free_pid and
free_tgid. This also makes __dump_page_owner() consistent with
print_page_owner(), which only prints ts_nsec in the allocation summary.
The output now groups all free-related information (pid, tgid, timestamp,
stack trace) in one place.
No functional change except output formatting.
Link: https://lore.kernel.org/20260701012239.315262-7-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner
+++ a/mm/page_owner.c
@@ -653,10 +653,10 @@ void __dump_page_owner(const struct page
else
pr_alert("page_owner tracks the page as freed\n");
- pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu, free_ts %llu\n",
+ pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu\n",
page_owner->order, migratetype_names[mt], gfp_mask, &gfp_mask,
page_owner->pid, page_owner->tgid, page_owner->comm,
- page_owner->ts_nsec, page_owner->free_ts_nsec);
+ page_owner->ts_nsec);
handle = READ_ONCE(page_owner->handle);
if (!handle)
@@ -668,8 +668,9 @@ void __dump_page_owner(const struct page
if (!handle) {
pr_alert("page_owner free stack trace missing\n");
} else {
- pr_alert("page last free pid %d tgid %d stack trace:\n",
- page_owner->free_pid, page_owner->free_tgid);
+ pr_alert("page last free pid %d tgid %d ts %llu stack trace:\n",
+ page_owner->free_pid, page_owner->free_tgid,
+ page_owner->free_ts_nsec);
stack_depot_print(handle);
}
_
Patches currently in -mm which might be from ye.liu@linux.dev are
mm-page_owner-extract-skip_buddy_pages-helper-to-unify-buddy-page-skipping.patch
mm-page_owner-add-mr_never-to-enum-migrate_reason-and-use-it-for-last_migrate_reason.patch
mm-use-enum-migrate_reason-instead-of-int-for-migration-reason-parameters.patch
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* + mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch added to mm-unstable branch
@ 2026-07-02 0:11 Andrew Morton
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2026-07-02 0:11 UTC (permalink / raw)
To: mm-commits, ye.liu, akpm
The patch titled
Subject: mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()
has been added to the -mm mm-unstable branch. Its filename is
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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 via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()
Date: Wed, 1 Jul 2026 14:10:49 +0800
The free_ts_nsec field is a free-event timestamp, but it was printed in
the allocation summary line alongside ts_nsec (allocation time). Move it
to the free section where it logically belongs, together with free_pid and
free_tgid. This also makes __dump_page_owner() consistent with
print_page_owner(), which only prints ts_nsec in the allocation summary.
The output now groups all free-related information (pid, tgid, timestamp,
stack trace) in one place.
No functional change except output formatting.
Link: https://lore.kernel.org/20260701061101.344679-7-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner
+++ a/mm/page_owner.c
@@ -653,10 +653,10 @@ void __dump_page_owner(const struct page
else
pr_alert("page_owner tracks the page as freed\n");
- pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu, free_ts %llu\n",
+ pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu\n",
page_owner->order, migratetype_names[mt], gfp_mask, &gfp_mask,
page_owner->pid, page_owner->tgid, page_owner->comm,
- page_owner->ts_nsec, page_owner->free_ts_nsec);
+ page_owner->ts_nsec);
handle = READ_ONCE(page_owner->handle);
if (!handle)
@@ -668,8 +668,9 @@ void __dump_page_owner(const struct page
if (!handle) {
pr_alert("page_owner free stack trace missing\n");
} else {
- pr_alert("page last free pid %d tgid %d stack trace:\n",
- page_owner->free_pid, page_owner->free_tgid);
+ pr_alert("page last free pid %d tgid %d ts %llu stack trace:\n",
+ page_owner->free_pid, page_owner->free_tgid,
+ page_owner->free_ts_nsec);
stack_depot_print(handle);
}
_
Patches currently in -mm which might be from ye.liu@linux.dev are
mm-page_owner-extract-skip_buddy_pages-helper-to-unify-buddy-page-skipping.patch
mm-page_owner-add-mr_never-to-enum-migrate_reason-and-use-it-for-last_migrate_reason.patch
mm-use-enum-migrate_reason-instead-of-int-for-migration-reason-parameters.patch
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
mm-page_owner-clamp-skip_buddy_pages-pfn-advance-at-max_order_nr_pages-boundary.patch
mm-page_owner-use-memcg_data-snapshot-instead-of-pagememcgkmem-to-avoid-toctou-vm_bug_on.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* + mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch added to mm-unstable branch
@ 2026-06-30 2:29 Andrew Morton
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2026-06-30 2:29 UTC (permalink / raw)
To: mm-commits, ziy, vbabka, surenb, mhocko, jackmanb, hannes, ye.liu,
akpm
The patch titled
Subject: mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()
has been added to the -mm mm-unstable branch. Its filename is
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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 via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()
Date: Tue, 30 Jun 2026 09:53:23 +0800
The free_ts_nsec field is a free-event timestamp, but it was printed in
the allocation summary line alongside ts_nsec (allocation time). Move it
to the free section where it logically belongs, together with free_pid and
free_tgid. This also makes __dump_page_owner() consistent with
print_page_owner(), which only prints ts_nsec in the allocation summary.
The output now groups all free-related information (pid, tgid, timestamp,
stack trace) in one place.
No functional change except output formatting.
Link: https://lore.kernel.org/20260630015331.147174-7-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner
+++ a/mm/page_owner.c
@@ -653,10 +653,10 @@ void __dump_page_owner(const struct page
else
pr_alert("page_owner tracks the page as freed\n");
- pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu, free_ts %llu\n",
+ pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu\n",
page_owner->order, migratetype_names[mt], gfp_mask, &gfp_mask,
page_owner->pid, page_owner->tgid, page_owner->comm,
- page_owner->ts_nsec, page_owner->free_ts_nsec);
+ page_owner->ts_nsec);
handle = READ_ONCE(page_owner->handle);
if (!handle)
@@ -668,8 +668,9 @@ void __dump_page_owner(const struct page
if (!handle) {
pr_alert("page_owner free stack trace missing\n");
} else {
- pr_alert("page last free pid %d tgid %d stack trace:\n",
- page_owner->free_pid, page_owner->free_tgid);
+ pr_alert("page last free pid %d tgid %d ts %llu stack trace:\n",
+ page_owner->free_pid, page_owner->free_tgid,
+ page_owner->free_ts_nsec);
stack_depot_print(handle);
}
_
Patches currently in -mm which might be from ye.liu@linux.dev are
mm-page_owner-extract-skip_buddy_pages-helper-to-unify-buddy-page-skipping.patch
mm-page_owner-add-mr_never-to-enum-migrate_reason-and-use-it-for-last_migrate_reason.patch
mm-use-enum-migrate_reason-instead-of-int-for-migration-reason-parameters.patch
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
mm-page_owner-clamp-skip_buddy_pages-pfn-advance-at-max_order_nr_pages-boundary.patch
mm-page_owner-use-memcg_data-snapshot-instead-of-pagememcgkmem-to-avoid-toctou-vm_bug_on.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
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