linux-kernel - Re: PANIC: "Oops: 0000 [#1] PREEMPT SMP PTI" starting from 5.17 on dual socket Intel Xeon Gold servers

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Date:   Fri, 22 Apr 2022 20:44:17 +0200
From:   Thorsten Leemhuis <regressions@...mhuis.info>
To:     Minchan Kim <minchan@...nel.org>
Cc:     Jirka Hladky <jhladky@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        regressions@...ts.linux.dev,
        Justin Forbes <jforbes@...oraproject.org>,
        Tejun Heo <tj@...nel.org>
Subject: Re: PANIC: "Oops: 0000 [#1] PREEMPT SMP PTI" starting from 5.17 on
 dual socket Intel Xeon Gold servers

On 22.04.22 20:27, Minchan Kim wrote:
> On Thu, Apr 21, 2022 at 06:47:41AM -1000, Tejun Heo wrote:
> [...]

Many thx for looking into this.

> Jirka, Could you test the patch? Once it's confirmed, I need to resend
> it with Ccing stable.

When you do so, could you please include a proper "Link:" tag pointing
to all reports of the regression, as explained in the Linux kernels
documentation (see 'Documentation/process/submitting-patches.rst' and
'Documentation/process/5.Posting.rst'). E.g. in this case:

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215696
Link:
https://lore.kernel.org/lkml/CAE4VaGDZr_4wzRn2___eDYRtmdPaGGJdzu_LCSkJYuY9BEO3cw@mail.gmail.com/

This concept is not new (Linus and quite a few other developers use them
like this for a long time), I just recently improved those documents to
clarify things, as my regression tracking efforts rely on this (and
there might be other people and software out there that does) -- that's
why it's making my work a lot harder if such tags are missing. :-/

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I'm getting a lot of
reports on my table. I can only look briefly into most of them and lack
knowledge about most of the areas they concern. I thus unfortunately
will sometimes get things wrong or miss something important. I hope
that's not the case here; if you think it is, don't hesitate to tell me
in a public reply, it's in everyone's interest to set the public record
straight.

> [...]