Public bug reported:
An appending DIO write will corrupt files on XFS.
The following patch needs to be backported:
commit b9d59846f73713d77f0f3fb784c7f84249fc2b93
Author: Dave Chinner
Date: Thu Apr 16 22:03:07 2015 +1000
xfs: DIO write completion size updates race
xfs_end_io_dir
Any progress on this issue? This is DATA CORRUPTION!
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https://bugs.launchpad.net/bugs/1500954
Title:
xfs DIO data corruption
Status in linux-lts-vivid package i
** Package changed: linux-lts-vivid (Ubuntu) => linux-lts-trusty
(Ubuntu)
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https://bugs.launchpad.net/bugs/1500954
Title:
xfs DIO data corruption
Status in linu
Public bug reported:
CONFIG_READ_ONLY_THP_FOR_FS allows transparent hugepages to apply to
.text segments of executables (if they execute the appropriate madvise()
call), leading to better performance.
Unfortunately, it is not enabled in Ubuntu. Please enable it.
Verified in 24.10:
# grep CONFIG
Yes, that's the option. Note that the application needs to opt in via
madvise().
Here's a case study from Intel:
https://www.intel.com/content/dam/develop/external/us/en/documents/runtimeperformanceoptimizationblueprint-
largecodepages-q1update.pdf
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