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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