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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Message-ID: <YmMLgHnxoTC1idCE@google.com>
Date:   Fri, 22 Apr 2022 13:09:36 -0700
From:   Minchan Kim <minchan@...nel.org>
To:     Thorsten Leemhuis <regressions@...mhuis.info>
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 Fri, Apr 22, 2022 at 08:44:17PM +0200, Thorsten Leemhuis wrote:
> 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/

Sure. Will do that.

> 
> 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.
> 
> > [...]