Revision 082cd4ec240b8734a82a89ffb890216ac98fec68 authored by Ye Bin on 06 May 2021, 14:10:42 UTC, committed by Theodore Ts'o on 06 June 2021, 14:09:55 UTC
We got follow bug_on when run fsstress with injecting IO fault: [130747.323114] kernel BUG at fs/ext4/extents_status.c:762! [130747.323117] Internal error: Oops - BUG: 0 [#1] SMP ...... [130747.334329] Call trace: [130747.334553] ext4_es_cache_extent+0x150/0x168 [ext4] [130747.334975] ext4_cache_extents+0x64/0xe8 [ext4] [130747.335368] ext4_find_extent+0x300/0x330 [ext4] [130747.335759] ext4_ext_map_blocks+0x74/0x1178 [ext4] [130747.336179] ext4_map_blocks+0x2f4/0x5f0 [ext4] [130747.336567] ext4_mpage_readpages+0x4a8/0x7a8 [ext4] [130747.336995] ext4_readpage+0x54/0x100 [ext4] [130747.337359] generic_file_buffered_read+0x410/0xae8 [130747.337767] generic_file_read_iter+0x114/0x190 [130747.338152] ext4_file_read_iter+0x5c/0x140 [ext4] [130747.338556] __vfs_read+0x11c/0x188 [130747.338851] vfs_read+0x94/0x150 [130747.339110] ksys_read+0x74/0xf0 This patch's modification is according to Jan Kara's suggestion in: https://patchwork.ozlabs.org/project/linux-ext4/patch/20210428085158.3728201-1-yebin10@huawei.com/ "I see. Now I understand your patch. Honestly, seeing how fragile is trying to fix extent tree after split has failed in the middle, I would probably go even further and make sure we fix the tree properly in case of ENOSPC and EDQUOT (those are easily user triggerable). Anything else indicates a HW problem or fs corruption so I'd rather leave the extent tree as is and don't try to fix it (which also means we will not create overlapping extents)." Cc: stable@kernel.org Signed-off-by: Ye Bin <yebin10@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20210506141042.3298679-1-yebin10@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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2.Process.rst | -rw-r--r-- | 23.7 KB |
3.Early-stage.rst | -rw-r--r-- | 10.7 KB |
4.Coding.rst | -rw-r--r-- | 21.1 KB |
5.Posting.rst | -rw-r--r-- | 15.9 KB |
6.Followthrough.rst | -rw-r--r-- | 11.8 KB |
7.AdvancedTopics.rst | -rw-r--r-- | 9.5 KB |
8.Conclusion.rst | -rw-r--r-- | 3.1 KB |
adding-syscalls.rst | -rw-r--r-- | 26.6 KB |
applying-patches.rst | -rw-r--r-- | 17.0 KB |
botching-up-ioctls.rst | -rw-r--r-- | 11.3 KB |
changes.rst | -rw-r--r-- | 12.8 KB |
clang-format.rst | -rw-r--r-- | 6.4 KB |
code-of-conduct-interpretation.rst | -rw-r--r-- | 7.2 KB |
code-of-conduct.rst | -rw-r--r-- | 3.2 KB |
coding-style.rst | -rw-r--r-- | 39.5 KB |
deprecated.rst | -rw-r--r-- | 14.8 KB |
development-process.rst | -rw-r--r-- | 810 bytes |
email-clients.rst | -rw-r--r-- | 11.0 KB |
embargoed-hardware-issues.rst | -rw-r--r-- | 13.1 KB |
howto.rst | -rw-r--r-- | 27.0 KB |
index.rst | -rw-r--r-- | 1.5 KB |
kernel-docs.rst | -rw-r--r-- | 23.6 KB |
kernel-driver-statement.rst | -rw-r--r-- | 4.1 KB |
kernel-enforcement-statement.rst | -rw-r--r-- | 4.9 KB |
license-rules.rst | -rw-r--r-- | 17.6 KB |
magic-number.rst | -rw-r--r-- | 9.7 KB |
maintainer-pgp-guide.rst | -rw-r--r-- | 37.4 KB |
maintainers.rst | -rw-r--r-- | 25 bytes |
management-style.rst | -rw-r--r-- | 13.1 KB |
programming-language.rst | -rw-r--r-- | 2.0 KB |
stable-api-nonsense.rst | -rw-r--r-- | 9.2 KB |
stable-kernel-rules.rst | -rw-r--r-- | 6.4 KB |
submit-checklist.rst | -rw-r--r-- | 4.9 KB |
submitting-drivers.rst | -rw-r--r-- | 6.8 KB |
submitting-patches.rst | -rw-r--r-- | 35.0 KB |
volatile-considered-harmful.rst | -rw-r--r-- | 5.6 KB |
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