Date: Sun, 24 Apr 2016 13:53:33 +0300 From: "Jukka A. Ukkonen" <jau789@gmail.com> To: freebsd-arm <freebsd-arm@FreeBSD.org> Subject: Mystical panic when RPI2 is left idle for a while Message-ID: <571CA5AD.1090800@gmail.com>
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This is a multi-part message in MIME format. --------------020608040207010702000606 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Hello all, I have a faint recollection that some others have also said their RPI2 panics when it is left idle for too long. Mine has been giving me those little surprises quite regularly, but until I got a 3,3V serial console cable I have had no chance to debug the problem any further. I hope the attached backtrace is more informative to someone else. All I was able to understand was that some process apparently tries to sleep while it is not allowed to do that. Maybe it is holding some locks or semaphores or something, and does not release them before trying to sleep. --jau --------------020608040207010702000606 Content-Type: text/plain; charset=UTF-8; name="RPI2-hang.txt" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="RPI2-hang.txt" KioqIENyZWF0aW5nIHRoZSB0ZW1wb3Jhcnkgcm9vdCBlbnZpcm9ubWVudCBpbiAvdXNyL29i ai90bXAvdGVtcHJvb3QKICoqKiAvdXNyL29iai90bXAvdGVtcHJvb3QgcmVhZHkgZm9yIHVz ZQogKioqIENyZWF0aW5nIGFuZCBwb3B1bGF0aW5nIGRpcmVjdG9yeSBzdHJ1Y3R1cmUgaW4g L3Vzci9vYmovdG1wL3RlbXByb290CgoKCioqKiBCZWdpbm5pbmcgY29tcGFyaXNvbgoKICAg KioqIENoZWNraW5nIC9ldGMvcmMuZCBmb3Igc3RhbGUgZmlsZXMKCiAgICoqKiBUaGUgZm9s bG93aW5nIGZpbGVzIGV4aXN0IGluIC9ldGMvcmMuZCBidXQgbm90IGluCiAgICAgICAvdXNy L29iai90bXAvdGVtcHJvb3QvZXRjL3JjLmQvOgoKIG1yb3V0ZTZkCgogICAgICAgVGhlIHBy ZXNlbmNlIG9mIHN0YWxlIGZpbGVzIGluIHRoaXMgZGlyZWN0b3J5IGNhbiBjYXVzZSB0aGUK ICAgICAgIGRyZWFkZWQgdW5wcmVkaWN0YWJsZSByZXN1bHRzLCBhbmQgdGhlcmVmb3JlIGl0 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