Hi Gert, On Tue, Sep 23, 2025 at 07:11:54PM +0000, Antwerpen, G. (Gert) van wrote: > Thanks to your fast reaction. I am not sure it's possible to pinpoint the > exact releases where this occurred first time. > > The problem occurs on a system that is in full operation, where I can't do > all kinds of reboots to test different kernels. > > I only see it on the Trixie kernel and the Trixie backports kernel now, the > Bookworm kernel didn't have it.
Okay that makes things more difficult. > Here is the complete relevant part of the kernel log: > > > > BUG: unable to handle page fault for address: ffffffaabfe73e00 > > #PF: supervisor instruction fetch in kernel mode > > #PF: error_code(0x0010) - not-present page > > PGD 1de231067 P4D 1de231067 PUD 0 > > Oops: Oops: 0010 [#2] SMP PTI Unfortunately that is not even the first Ooops. So there should be more earlier already in the log. Are you able to provide the full kernel log from once the problem is happening? If the system is not accessible anymore, then consider attaching a netconsole so we get logs from as early as possible from boot and then logged over the network. The full log would be better, if not, then at least we should get the first oops and see from there. > > CPU: 9 UID: 40001 PID: 230866 Comm: rsync Tainted: G D > 6.16.3+deb13-amd64 #1 PREEMPT(lazy) Debian 6.16.3-1~bpo13+1 > > Tainted: [D]=DIE > > Hardware name: MSI MS-7885/X99A SLI PLUS(MS-7885), BIOS 1.D0 07/15/2016 This sesm quite an old system, nwer BIOS version seems available still slightly more recent taht the 07/15/2016 version, so you might consider updating it. Regards, Salvatore
