[SRU][M][PATCH 0/1] arm64 atomic issues cause disk corruption
Roxana Nicolescu
roxana.nicolescu at canonical.com
Fri Nov 3 08:10:00 UTC 2023
BugLink: https://bugs.launchpad.net/bugs/2042573
SRU Justification:
[Impact]
The mantic kernel introduced a regression in atomic operations on arm64
which causes all kinds of problems including file system corruptions,
since commit "locking/atomic: scripts: restructure fallback
ifdeffery".
An example report of people encountering this in UTM with a arm64
generic kernel: https://github.com/utmapp/UTM/issues/4840
[Fix]
Cherry-pick commit "locking/atomic: scripts: fix fallback ifdeffery"
from linux-stable v6.5.6
[Test Plan]
Boot test on an arm64 vm.
[Where problems could occur]
Since this is touching atomic operations, this has a wide impact on the
kernel.
Mark Rutland (1):
locking/atomic: scripts: fix fallback ifdeffery
include/linux/atomic/atomic-arch-fallback.h | 10 +---------
scripts/atomic/gen-atomic-fallback.sh | 2 +-
2 files changed, 2 insertions(+), 10 deletions(-)
--
2.34.1
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