FireAsf 🔥
![]() commit 5ca60b86f57a4d9648f68418a725b3a7de2816b0 upstream. One of our customers reported a crash and a corrupted ocfs2 filesystem. The crash was due to the detection of corruption. Upon troubleshooting, the fsck -fn output showed the below corruption [EXTENT_LIST_FREE] Extent list in owner 33080590 claims 230 as the next free chain record, but fsck believes the largest valid value is 227. Clamp the next record value? n The stat output from the debugfs.ocfs2 showed the following corruption where the "Next Free Rec:" had overshot the "Count:" in the root metadata block. Inode: 33080590 Mode: 0640 Generation: 2619713622 (0x9c25a856) FS Generation: 904309833 (0x35e6ac49) CRC32: 00000000 ECC: 0000 Type: Regular Attr: 0x0 Flags: Valid Dynamic Features: (0x16) HasXattr InlineXattr Refcounted Extended Attributes Block: 0 Extended Attributes Inline Size: 256 User: 0 (root) Group: 0 (root) Size: 281320357888 Links: 1 Clusters: 141738 ctime: 0x66911b56 0x316edcb8 -- Fri Jul 12 06:02:30.829349048 2024 atime: 0x66911d6b 0x7f7a28d -- Fri Jul 12 06:11:23.133669517 2024 mtime: 0x66911b56 0x12ed75d7 -- Fri Jul 12 06:02:30.317552087 2024 dtime: 0x0 -- Wed Dec 31 17:00:00 1969 Refcount Block: 2777346 Last Extblk: 2886943 Orphan Slot: 0 Sub Alloc Slot: 0 Sub Alloc Bit: 14 Tree Depth: 1 Count: 227 Next Free Rec: 230 ## Offset Clusters Block# 0 0 2310 2776351 1 2310 2139 2777375 2 4449 1221 2778399 3 5670 731 2779423 4 6401 566 2780447 ....... .... ....... ....... .... ....... The issue was in the reflink workfow while reserving space for inline xattr. The problematic function is ocfs2_reflink_xattr_inline(). By the time this function is called the reflink tree is already recreated at the destination inode from the source inode. At this point, this function reserves space for inline xattrs at the destination inode without even checking if there is space at the root metadata block. It simply reduces the l_count from 243 to 227 thereby making space of 256 bytes for inline xattr whereas the inode already has extents beyond this index (in this case up to 230), thereby causing corruption. The fix for this is to reserve space for inline metadata at the destination inode before the reflink tree gets recreated. The customer has verified the fix. Link: https://lkml.kernel.org/r/20240918063844.1830332-1-gautham.ananthakrishna@oracle.com Fixes: ef962df057aa ("ocfs2: xattr: fix inlined xattr reflink") Signed-off-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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android | ||
arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
firmware/tsp_goodix | ||
fs | ||
gki | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
kernel_build | ||
KernelSU@b766b98513 | ||
kunitconfigs | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
test | ||
tools | ||
usr | ||
virt | ||
build.config.aarch64 | ||
build.config.allmodconfig | ||
build.config.allmodconfig.aarch64 | ||
build.config.allmodconfig.arm | ||
build.config.allmodconfig.x86_64 | ||
build.config.amlogic | ||
build.config.arm | ||
build.config.common | ||
build.config.db845c | ||
build.config.erd8825_a25_s | ||
build.config.erd8825_s | ||
build.config.erd9925_evt0_s | ||
build.config.erd9925_evt0_s5300_s | ||
build.config.erd9925_s | ||
build.config.gki | ||
build.config.gki-debug.aarch64 | ||
build.config.gki-debug.x86_64 | ||
build.config.gki.aarch64 | ||
build.config.gki.aarch64.fips140 | ||
build.config.gki.aarch64.fips140_eval_testing | ||
build.config.gki.x86_64 | ||
build.config.gki_kasan | ||
build.config.gki_kasan.aarch64 | ||
build.config.gki_kasan.x86_64 | ||
build.config.gki_kprobes | ||
build.config.gki_kprobes.aarch64 | ||
build.config.gki_kprobes.x86_64 | ||
build.config.hikey960 | ||
build.config.khwasan | ||
build.config.mcd | ||
build.config.rockchip | ||
build.config.universal2100_s | ||
build.config.universal8825_s | ||
build.config.universal9925_evt0_s | ||
build.config.universal9925_s | ||
build.config.x86_64 | ||
build.sh | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
linux-stable.sh | ||
MAINTAINERS | ||
Makefile | ||
OWNERS | ||
README | ||
README.md | ||
vendor_boot_module_order_exynos2100.cfg | ||
vendor_boot_module_order_s5e8825.cfg | ||
vendor_boot_module_order_s5e9925.cfg | ||
vendor_module_list_s5e8825.cfg | ||
vendor_module_list_s5e9925.cfg | ||
vendor_module_list_s5e9925_b0s.cfg | ||
vendor_module_list_s5e9925_g0s.cfg | ||
vendor_module_list_s5e9925_r0s.cfg |
How do I submit patches to Android Common Kernels
-
BEST: Make all of your changes to upstream Linux. If appropriate, backport to the stable releases. These patches will be merged automatically in the corresponding common kernels. If the patch is already in upstream Linux, post a backport of the patch that conforms to the patch requirements below.
- Do not send patches upstream that contain only symbol exports. To be considered for upstream Linux,
additions of
EXPORT_SYMBOL_GPL()
require an in-tree modular driver that uses the symbol -- so include the new driver or changes to an existing driver in the same patchset as the export. - When sending patches upstream, the commit message must contain a clear case for why the patch is needed and beneficial to the community. Enabling out-of-tree drivers or functionality is not not a persuasive case.
- Do not send patches upstream that contain only symbol exports. To be considered for upstream Linux,
additions of
-
LESS GOOD: Develop your patches out-of-tree (from an upstream Linux point-of-view). Unless these are fixing an Android-specific bug, these are very unlikely to be accepted unless they have been coordinated with kernel-team@android.com. If you want to proceed, post a patch that conforms to the patch requirements below.
Common Kernel patch requirements
- All patches must conform to the Linux kernel coding standards and pass
script/checkpatch.pl
- Patches shall not break gki_defconfig or allmodconfig builds for arm, arm64, x86, x86_64 architectures (see https://source.android.com/setup/build/building-kernels)
- If the patch is not merged from an upstream branch, the subject must be tagged with the type of patch:
UPSTREAM:
,BACKPORT:
,FROMGIT:
,FROMLIST:
, orANDROID:
. - All patches must have a
Change-Id:
tag (see https://gerrit-review.googlesource.com/Documentation/user-changeid.html) - If an Android bug has been assigned, there must be a
Bug:
tag. - All patches must have a
Signed-off-by:
tag by the author and the submitter
Additional requirements are listed below based on patch type
Requirements for backports from mainline Linux: UPSTREAM:
, BACKPORT:
- If the patch is a cherry-pick from Linux mainline with no changes at all
- tag the patch subject with
UPSTREAM:
. - add upstream commit information with a
(cherry picked from commit ...)
line - Example:
- if the upstream commit message is
- tag the patch subject with
important patch from upstream
This is the detailed description of the important patch
Signed-off-by: Fred Jones <fred.jones@foo.org>
- then Joe Smith would upload the patch for the common kernel as
UPSTREAM: important patch from upstream
This is the detailed description of the important patch
Signed-off-by: Fred Jones <fred.jones@foo.org>
Bug: 135791357
Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
(cherry picked from commit c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
Signed-off-by: Joe Smith <joe.smith@foo.org>
- If the patch requires any changes from the upstream version, tag the patch with
BACKPORT:
instead ofUPSTREAM:
.- use the same tags as
UPSTREAM:
- add comments about the changes under the
(cherry picked from commit ...)
line - Example:
- use the same tags as
BACKPORT: important patch from upstream
This is the detailed description of the important patch
Signed-off-by: Fred Jones <fred.jones@foo.org>
Bug: 135791357
Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
(cherry picked from commit c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
[joe: Resolved minor conflict in drivers/foo/bar.c ]
Signed-off-by: Joe Smith <joe.smith@foo.org>
Requirements for other backports: FROMGIT:
, FROMLIST:
,
- If the patch has been merged into an upstream maintainer tree, but has not yet
been merged into Linux mainline
- tag the patch subject with
FROMGIT:
- add info on where the patch came from as
(cherry picked from commit <sha1> <repo> <branch>)
. This must be a stable maintainer branch (not rebased, so don't uselinux-next
for example). - if changes were required, use
BACKPORT: FROMGIT:
- Example:
- if the commit message in the maintainer tree is
- tag the patch subject with
important patch from upstream
This is the detailed description of the important patch
Signed-off-by: Fred Jones <fred.jones@foo.org>
- then Joe Smith would upload the patch for the common kernel as
FROMGIT: important patch from upstream
This is the detailed description of the important patch
Signed-off-by: Fred Jones <fred.jones@foo.org>
Bug: 135791357
(cherry picked from commit 878a2fd9de10b03d11d2f622250285c7e63deace
https://git.kernel.org/pub/scm/linux/kernel/git/foo/bar.git test-branch)
Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
Signed-off-by: Joe Smith <joe.smith@foo.org>
- If the patch has been submitted to LKML, but not accepted into any maintainer tree
- tag the patch subject with
FROMLIST:
- add a
Link:
tag with a link to the submittal on lore.kernel.org - add a
Bug:
tag with the Android bug (required for patches not accepted into a maintainer tree) - if changes were required, use
BACKPORT: FROMLIST:
- Example:
- tag the patch subject with
FROMLIST: important patch from upstream
This is the detailed description of the important patch
Signed-off-by: Fred Jones <fred.jones@foo.org>
Bug: 135791357
Link: https://lore.kernel.org/lkml/20190619171517.GA17557@someone.com/
Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
Signed-off-by: Joe Smith <joe.smith@foo.org>
Requirements for Android-specific patches: ANDROID:
- If the patch is fixing a bug to Android-specific code
- tag the patch subject with
ANDROID:
- add a
Fixes:
tag that cites the patch with the bug - Example:
- tag the patch subject with
ANDROID: fix android-specific bug in foobar.c
This is the detailed description of the important fix
Fixes: 1234abcd2468 ("foobar: add cool feature")
Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
Signed-off-by: Joe Smith <joe.smith@foo.org>
- If the patch is a new feature
- tag the patch subject with
ANDROID:
- add a
Bug:
tag with the Android bug (required for android-specific features)
- tag the patch subject with