Pete Wright wrote:
hello,
i have a lenovo thinkpad P43s that exhibits lockups under CURRENT but
behaves fine when running STABLE. i've tried to find a fully
reproducible situation to get this system to lockup but haven't found
anything yet. i am starting to suspect that the changes implemented in
this review may be the issue though:
https://reviews.freebsd.org/D23728
my reasoning is that i've observed issues when:
- removing AC power from the laptop, or inserting AC power
- when the system display has gone to sleep
- randomly hanging during boot with this as last line:
battery0: battery enitialization start
unfortunately while the above seem to be cases where this has happened i
haven't been able to %100 reproduce yet.
so my first question is - would it be possible to just revert the
changes in that diff, or has too much time gone past to just back out
that single change. alternatively, is there any debugging information i
can get on my end that might help figure out what the root cause is?
Not really what you are asking, but it's possible to disable ACPI
subdevices, so you could check if disabling cmbat completely helps and
it's indeed the suspect:
debug.acpi.disabled="cmbat"
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