From: Pasha Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, akpm@linux-foundation.org,
rientjes@google.com, pjt@google.com, weixugc@google.com,
gthelen@google.com, mingo@redhat.com, will@kernel.org,
rppt@kernel.org, dave.hansen@linux.intel.com, hpa@zytor.com,
aneesh.kumar@linux.ibm.com, jirislaby@kernel.org,
songmuchun@bytedance.com, qydwhotmail@gmail.com,
hughd@google.com, ziy@nvidia.com, anshuman.khandual@arm.com
Subject: [PATCH v4 0/4] page table check fixes and cleanups
Date: Wed, 26 Jan 2022 18:36:33 +0000 [thread overview]
Message-ID: <20220126183637.1840960-1-pasha.tatashin@soleen.com> (raw)
Changelog:
v4: - Addressed review comments from David Rientjes
- Added Acks.
v3: - Resolved a regression introduced in previous version, where
page collapse in khugepaged would cause crash on boot.
- Addressed comments from Anshuman Khandual regarding commit
log.
v2: - Addressed simplification comments from Wei Xu
- Added Review-by/Tested-by's from Zi Yan and Wei Xu
Two fixes:
mm/debug_vm_pgtable: remove pte entry from the page table
- remove a pte entry from the page table at the end of
debug_vm_pgtable pte test
mm/khugepaged: unify collapse pmd clear, flush and free
mm/page_table_check: check entries at pmd levels
- check pmd level in page_table_check for PTE regular entries
prior to freeing.
repro.c: https://gist.github.com/soleen/fdcd501d5df103976245fe84e9535087
config: https://gist.github.com/soleen/8a56f923c2fea9ce9c75b4e2517d4162
qemu_script: https://gist.github.com/soleen/f4be4795826b7ab1a51ae659582e179c
base image:
https://storage.googleapis.com/syzkaller/wheezy.img
https://storage.googleapis.com/syzkaller/wheezy.img.key
Small cleanup:
mm/page_table_check: use unsigned long for page counters and cleanup
Previous versions:
v1: https://lore.kernel.org/all/20220120042513.1648831-1-pasha.tatashin@soleen.com
v2: https://lore.kernel.org/all/20220120191250.2671557-1-pasha.tatashin@soleen.com
v3: https://lore.kernel.org/all/20220126060514.1574935-1-pasha.tatashin@soleen.com
Pasha Tatashin (4):
mm/debug_vm_pgtable: remove pte entry from the page table
mm/page_table_check: use unsigned long for page counters and cleanup
mm/khugepaged: unify collapse pmd clear, flush and free
mm/page_table_check: check entries at pmd levels
include/linux/page_table_check.h | 18 ++++++++++
mm/debug_vm_pgtable.c | 2 ++
mm/khugepaged.c | 37 ++++++++++++---------
mm/page_table_check.c | 56 ++++++++++++++++----------------
4 files changed, 69 insertions(+), 44 deletions(-)
--
2.35.0.rc0.227.g00780c9af4-goog
next reply other threads:[~2022-01-26 18:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-26 18:36 Pasha Tatashin [this message]
2022-01-26 18:36 ` [PATCH v4 1/4] mm/debug_vm_pgtable: remove pte entry from the page table Pasha Tatashin
2022-01-26 18:36 ` [PATCH v4 2/4] mm/page_table_check: use unsigned long for page counters and cleanup Pasha Tatashin
2022-01-26 18:36 ` [PATCH v4 3/4] mm/khugepaged: unify collapse pmd clear, flush and free Pasha Tatashin
2022-01-26 18:36 ` [PATCH v4 4/4] mm/page_table_check: check entries at pmd levels Pasha Tatashin
2022-01-26 19:26 ` David Rientjes
2022-01-28 23:39 ` Wei Xu
2022-01-31 20:16 ` Pasha Tatashin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220126183637.1840960-1-pasha.tatashin@soleen.com \
--to=pasha.tatashin@soleen.com \
--cc=akpm@linux-foundation.org \
--cc=aneesh.kumar@linux.ibm.com \
--cc=anshuman.khandual@arm.com \
--cc=dave.hansen@linux.intel.com \
--cc=gthelen@google.com \
--cc=hpa@zytor.com \
--cc=hughd@google.com \
--cc=jirislaby@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mingo@redhat.com \
--cc=pjt@google.com \
--cc=qydwhotmail@gmail.com \
--cc=rientjes@google.com \
--cc=rppt@kernel.org \
--cc=songmuchun@bytedance.com \
--cc=weixugc@google.com \
--cc=will@kernel.org \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.