Bug#981807: linux-image-5.10.0-3-amd64: frequently random lockup after boot
Package: src:linux
Version: 5.10.12-1
Followup-For: Bug #981807
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Dear Maintainer,
I think I found the root cause. My CPU model is Intel(R) Core(TM)
i5-10210U CPU @ 1.60GHz. On linux 5.9 the max c-state it can enter is
C6 but after 5.10 it'll happily go to C8. After entering deep c-state
all sort of weird memory corruption and lockup starts to show
up. Testing with boot parameter intel_idle.max_cstate=4 it seems the
system becomes stable again and c-state is capped at C6. C7 is also
not safe.
Now that I can reliably tell where to look for the problem I'll try to
bisect the upstream commits.
Thanks,
Kanru
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