Re: md raid6 oops in 6.6.4 stable

On 07.12.23 14:30, Bagas Sanjaya wrote:

On Thu, Dec 07, 2023 at 08:10:04AM -0500, Genes Lists wrote:

quoted

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 [off-list ref]
  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.

Can you confirm that culprit by bisection?

Bagas, I know you are trying to help, but sorry, I'd say this is not
helpful at all -- any maybe even harmful.

From the quoted texts it's pretty clear that the reporter knows that a
bisection would be helpful, but currently is unable to perform one --
and even states reasons for reporting it without having it bisected. So
your message afaics doesn't bring anything new to the table; and I might
be wrong with that, but I fear some people in a situation like this
might even be offended by a reply like that, as it states something
already obvious.

Ciao, Thorsten