[Bug 211895] dell_wmi_sysman causes unbootable system

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=211895

Hans de Goede (jwrdegoede@fedoraproject.org) changed:

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--- Comment #7 from Hans de Goede (jwrdegoede@fedoraproject.org) ---
I've prepared and posted a set of patches which deal with various problems with
error-exit path cleanups and general robustness of the dell-wmi-sysman driver:

https://lore.kernel.org/platform-driver-x86/20210320143429.76047-1-hdegoede@redhat.com/T/#t

Note it is not entirely clear to me what is going on here, so I'm not sure if
these patches fix things but hopefully they will help.

What would be helpful, independent of testing the patches, is if someone could
boot a 5.11 kernel with dell-wmi-sysman blacklisted to avoid the problem.

And then:

1. Switch to a text-console
2. ssh into the machine and run dmesg -w
3. ssh into the machine a second time and run: "sudo modprobe dell_wmi_sysman
dyndbg"

And then collect log info from the "dmesg -w" and in case there are log
messages on the text-console which did not make it into the ssh dmesg -w
output, make a picture of those.

And if you are capable of building your own kernels then testing the patches
would be great too of course (save the emails in "raw" format and then "git am"
them).

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