FS#78973 - [linux] 6.4 regression: memory corruption

Attached to Project: Arch Linux
Opened by Alexander Mezin (Sanya_M) - Tuesday, 04 July 2023, 04:02 GMT
Last edited by Jan Alexander Steffens (heftig) - Tuesday, 04 July 2023, 16:00 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:

https://bugzilla.kernel.org/show_bug.cgi?id=217624

Turns out that "per-vma locking during page fault handling", introduced in 6.4, doesn't work correctly.

For me, upgrade to 6.4.1 causes frequent Firefox crashes.

Workaround: https://lore.kernel.org/all/20230703182150.2193578-1-surenb%40google.com/
This task depends upon

Closed by  Jan Alexander Steffens (heftig)
Tuesday, 04 July 2023, 16:00 GMT
Reason for closing:  Fixed
Additional comments about closing:  linux 6.4.1.arch2-1
Comment by Toolybird (Toolybird) - Tuesday, 04 July 2023, 05:14 GMT
> upgrade to 6.4.1 causes frequent Firefox crashes

Probably same as  FS#78955  (i.e. the kernel bug is the possible root cause of the FF crashes)
Comment by Alexander Mezin (Sanya_M) - Tuesday, 04 July 2023, 15:41 GMT
linux-zen 6.4.1.zen2-1 seems to fix it

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