Date: Wed, 5 May 2021 14:38:23 -0400 From: Mark Johnston <markj@freebsd.org> To: Michael Schmiedgen <schmiedgen@gmx.net> Cc: freebsd-net@freebsd.org Subject: Re: page fault while in kernel mode - after upgrade from 12.2 to 13.0 Message-ID: <YJLmH7fcr57mnHpz@nuc> In-Reply-To: <51a3abc5-76b9-df09-acbe-895b62ec87b3@gmx.net> References: <d7c3bfbd-2e54-c0f4-ec23-5dab08287ea3@gmx.net> <YJBS8YMZFkMtWPEu@nuc> <d37716a3-927d-b200-c805-b31d7b36383d@gmx.net> <YJGaUnWCPVXRC4NC@nuc> <51a3abc5-76b9-df09-acbe-895b62ec87b3@gmx.net>
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On Wed, May 05, 2021 at 06:35:32PM +0200, Michael Schmiedgen wrote: > On 04.05.2021 21:02, Mark Johnston wrote: > > This looks like fairly random kernel memory corruption. Are you able to > > build an INVARIANTS kernel and test that? Assuming you're using 13.0, > > you'd grab the 13.0 sources, add "options INVARIANT_SUPPORT" and > > "options INVARIANTS" to the GENERIC kernel configuration in > > sys/amd64/conf, and do a "make buildkernel installkernel". > > Below some info with an INVARIANTS kernel. Please let me know if I can provide > further information. Thank you! Thanks, this helped a lot. I believe https://reviews.freebsd.org/D30129 will fix the problem. That patch is against the main branch but applies cleanly to 13.0.
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