Re: [PATCH 6.11 000/249] 6.11.7-rc2 review

[Guenter Roeck]

On 11/6/24 22:47, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.11.7 release.
> There are 249 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Sat, 09 Nov 2024 06:45:18 +0000.
> Anything received after that time might be too late.
[ ... ]

> Naohiro Aota <naohiro.aota@xxxxxxx>
>      btrfs: fix error propagation of split bios

This patch triggers:

ERROR: modpost: "__cmpxchg_called_with_bad_pointer" [fs/btrfs/btrfs.ko] undefined!

or:

fs/btrfs/bio.o: In function `btrfs_bio_alloc':
fs/btrfs/bio.c:73: undefined reference to `__cmpxchg_called_with_bad_pointer'
fs/btrfs/bio.o: In function `__cmpxchg':
arch/xtensa/include/asm/cmpxchg.h:78: undefined reference to `__cmpxchg_called_with_bad_pointer'

on xtensa builds with btrfs enabled.

Upstream commit e799bef0d9c8 ("xtensa: Emulate one-byte cmpxchg") is
required to fix the problem.

Guenter