Date: Mon, 11 May 2020 16:21:54 -0700 From: Pete Wright <pete@nomadlogic.org> To: Yuri Pankov <ypankov@fastmail.com>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: lockups on lenovo p43s under current Message-ID: <a44d5a7b-d9e9-83ab-9d3f-3ad81d1a4ad1@nomadlogic.org> In-Reply-To: <7cd71bcc-5d3c-594f-9c06-3aea48aedc63@fastmail.com> References: <de74309e-3ae1-91ed-e11a-08677713af9b@nomadlogic.org> <7cd71bcc-5d3c-594f-9c06-3aea48aedc63@fastmail.com>
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On 5/11/20 3:28 PM, Yuri Pankov wrote: > 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" Thanks Yuri, So I was able to boot my system once via batter with this set, but unfortunately it crashed after I tried to suspend/resume. Realizing that was a bit optimistic I attempted to reboot the system and wasn't able to get it to fully boot after several attempts. I believe what the next step at this point is checkout the code right before this commit and see if I can get it to successfully boot. I'll report back if I find anything after that test. -pete -- Pete Wright pete@nomadlogic.org @nomadlogicLA
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