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

Hui Wang hui.wang at canonical.com
Fri Jul 17 09:18:25 UTC 2026


Acked-by: Hui Wang <hui.wang at canonical.com>

On 7/14/26 17:55, 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(-)
>



More information about the kernel-team mailing list