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SubjectRe: md raid6 oops in 6.6.4 stable
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On 12/7/23 12:37, Song Liu wrote:
...
> kernel: md_end_clone_io+0x75/0xa0 <<< change in md_end_clone_io
>
> The commit only changes how we update bi_status. But bi_status was not
> used/checked at all between md_end_clone_io and the trap (lock cmpxchg).
> Did I miss something?
>
> Given the issue takes very long to reproduce. Maybe we have the issue
> before 6.6.4?
>
> Thanks,
> Song

Thanks for clarifying that point.

In meantime I rebooted server (shutdown was a struggle) - finally I
fsck'd the filesystem (ext4) sitting on the raid6 - and manually ran the
triggering rsync. This of course completed normally. That's either good
or bad depending on your perspective :)

If I can get it to crash again, I will either start a git bisect (from
6.6.3) or see if 6.7rc4 shows same issue.

thanks,

gene


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