Thanks for the information.
The U3500 results with the liquorix kernel are unexpected.
I thought that performance events would be completely disabled, but
that's not the case. I'll try to figure out why it doesn't crash.
Hello Kazimierz,
The rdpmc instruction can't be used to read the fixed counter on some
VIA Nano CPU's. We're trying to figure out which ones work and which
ones don't work.
Can you provide CPU information from /proc/cpuinfo for your
VIA Nano U3500 and VIA Eden X2 U4200 CPU's?
Can you also
As a workaround, I'm passing kernel parameter
'initcall_blacklist=init_hw_perf_events' to disable the Zhaoxin PMU driver. The
system boots without panic. Differences in the boot log:
[0.00] Linux version 5.10.0-4-amd64 (debian-ker...@lists.debian.org)
(gcc-10 (Debian 10.2.1-6) 10.2.1
I re-tested with the latest bullseye 5.10.19-1 kernel and the problem remains.
Any advice how to debug this?
Panic message (full boot messages attached):
[ 12.884349] general protection fault: [#1] SMP PTI
[ 12.884352] CPU: 0 PID: 1 Comm: systemd Not tainted 5.10.0-4-amd64 #1 Debian
My issue looks the same as that of Kazimierz, but I have a VIA Nano L2200 with
VX800 chipset.
I upgraded from buster to bullseye. The 5.10.13-1 kernel panics during boot,
but the system boots when I use the old buster 4.19.171-2 kernel.
Panic message (full boot messages attached):
[
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