APPLIED: [SRU][R:linux-raspi][PATCH 0/1] mmc: Fix request issuing race condition

Manuel Diewald manuel.diewald at canonical.com
Tue Aug 11 07:56:27 UTC 2026


On Tue, Jul 14, 2026 at 07:55:21PM +1000, Yufeng Gao via kernel-team wrote:
> BugLink: https://bugs.launchpad.net/bugs/2160602
> 
> SRU Justification
> 
> [Impact]
> 
> When stress-ng is used to run directory creation stress tests on eMMC, the system locks up.
> This is highly reproducible on ext4 when discard is enabled when mounting the filesystem.
> 
> [Fix]
> 
> Pull the fix from upstream Raspberry Pi tree (rpi-6.18.y branch):
>   - 66d46640d0a54 mmc: don't reference requests after issuing them
> 
> [Test Plan]
> 
> * Compile tested
> * Boot tested
> * No impacts to existing features found
> 
> Install the built packages and running the same stress test should no longer result in hangs
> and lockups. (See BugLink for script for running the test).
> 
> [Regression potential]
> 
> Relatively low, as change is a bug fix from upstream.
> 
> Yufeng Gao (1):
>   mmc: don't reference requests after issuing them
> 
>  drivers/mmc/core/queue.c | 9 ++++++---
>  include/linux/mmc/card.h | 2 +-
>  2 files changed, 7 insertions(+), 4 deletions(-)
> 
> -- 
> 2.43.0
> 
> 
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Applied to resolute:linux-raspi/master-next. Thanks!

-- 
 Manuel
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