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From: Stefan Dietrich <roots@gmx.de>
To: Vinicius Costa Gomes <vinicius.gomes@intel.com>,
	Jakub Kicinski <kuba@kernel.org>
Cc: Greg KH <greg@kroah.com>,
	netdev@vger.kernel.org, stable@vger.kernel.org,
	 regressions@lists.linux.dev,
	Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>,
	 Tony Nguyen <anthony.l.nguyen@intel.com>,
	intel-wired-lan@lists.osuosl.org
Subject: Re: [REGRESSION] Kernel 5.15 reboots / freezes upon ifup/ifdown
Date: Thu, 25 Nov 2021 09:41:56 +0100	[thread overview]
Message-ID: <227af6b0692a0a57f5fb349d4d9c914301753209.camel@gmx.de> (raw)
In-Reply-To: <87a6htm4aj.fsf@intel.com>

Hi Vinicius,

thanks - this was spot-on: disabling CONFIG_PCIE_PTM resolves the issue
for latest 5.15.4 (stable from git) for both manual and network-manager
NIC configuration.

Let me know if I may assist in debugging this further.


Cheers,
Stefan


On Wed, 2021-11-24 at 17:07 -0800, Vinicius Costa Gomes wrote:
> Hi Stefan,
>
> Jakub Kicinski <kuba@kernel.org> writes:
>
> > On Wed, 24 Nov 2021 18:20:40 +0100 Stefan Dietrich wrote:
> > > Hi all,
> > >
> > > six exciting hours and a lot of learning later, here it is.
> > > Symptomatically, the critical commit appears for me between
> > > 5.14.21-
> > > 051421-generic and 5.15.0-051500rc2-generic - I did not find an
> > > amd64
> > > build for rc1.
> > >
> > > Please see the git-bisect output below and let me know how I may
> > > further assist in debugging!
> >
> > Well, let's CC those involved, shall we? :)
> >
> > Thanks for working thru the bisection!
> >
> > > a90ec84837325df4b9a6798c2cc0df202b5680bd is the first bad commit
> > > commit a90ec84837325df4b9a6798c2cc0df202b5680bd
> > > Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
> > > Date:   Mon Jul 26 20:36:57 2021 -0700
> > >
> > >     igc: Add support for PTP getcrosststamp()
>
> Oh! That's interesting.
>
> Can you try disabling CONFIG_PCIE_PTM in your kernel config? If it
> works, then it's a point in favor that this commit is indeed the
> problematic one.
>
> I am still trying to think of what could be causing the lockup you
> are
> seeing.
>
>
> Cheers,


  parent reply	other threads:[~2021-11-25  8:42 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24  7:28 Stefan Dietrich
2021-11-24  7:33 ` Greg KH
2021-11-24  7:42   ` Stefan Dietrich
2021-11-24 17:20   ` Stefan Dietrich
2021-11-24 23:34     ` Jakub Kicinski
2021-11-25  1:07       ` Vinicius Costa Gomes
2021-11-25  1:13         ` Jakub Kicinski
2021-11-25  8:41         ` Stefan Dietrich [this message]
2021-12-01 11:45           ` Thorsten Leemhuis
2021-12-01 17:47             ` Vinicius Costa Gomes
2021-12-01 18:57               ` [PATCH] igc: Avoid possible deadlock during suspend/resume Vinicius Costa Gomes
2021-12-02  6:41                 ` Greg KH
2021-12-02  6:50                   ` Vinicius Costa Gomes
2021-12-02  8:34                 ` Stefan Dietrich
2021-12-02 22:34                   ` Vinicius Costa Gomes
2021-12-10  9:40                     ` Thorsten Leemhuis
2021-12-10 13:45                       ` Stefan Dietrich
2021-12-10 14:01                         ` Thorsten Leemhuis
2021-12-10 14:51                           ` Stefan Dietrich
2021-12-11  0:41                             ` Vinicius Costa Gomes
2021-12-11  9:50                               ` Stefan Dietrich
2021-12-13 18:32                                 ` Vinicius Costa Gomes
2021-12-14  6:39                                   ` Stefan Dietrich
2021-11-24  7:48 ` [REGRESSION] Kernel 5.15 reboots / freezes upon ifup/ifdown Thorsten Leemhuis
2021-11-25 11:15   ` Thorsten Leemhuis
2021-11-24  8:05 ` Stefan Dietrich

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