Re: md raid6 oops in 6.6.4 stable

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Hi,

On 12/7/23 21:55, Genes Lists wrote:
On 12/7/23 08:30, Bagas Sanjaya wrote:
On Thu, Dec 07, 2023 at 08:10:04AM -0500, Genes Lists wrote:
I have not had chance to git bisect this but since it happened in stable I
thought it was important to share sooner than later.

One possibly relevant commit between 6.6.3 and 6.6.4 could be:

   commit 2c975b0b8b11f1ffb1ed538609e2c89d8abf800e
   Author: Song Liu <song@xxxxxxxxxx>
   Date:   Fri Nov 17 15:56:30 2023 -0800

     md: fix bi_status reporting in md_end_clone_io

log attached shows page_fault_oops.
Machine was up for 3 days before crash happened.

Could you decode the oops (I can't find it in lore for some reason) ([1])? And
can it be reproduced reliably? If so, pls share the reproduce step.

[1]. https://lwn.net/Articles/592724/

Thanks,
Guoqing




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