Date: Sun, 10 Dec 2017 17:45:12 -0700 (MST) From: Gary Aitken <garya@nightmare.dreamchaser.org> To: freebsd-questions@freebsd.org Subject: Subject: Thunderbird causing system crash, need guidance Message-ID: <201712110045.vBB0jCTQ078476@nightmare.dreamchaser.org>
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Hi all, Looking for guidance diagnosing a system crash caused by attempting to start Thunderbird. 10.3-RELEASE-p20 FreeBSD 10.3-RELEASE-p20 #0: Wed Jul 12 03:13:07 UTC 2017 root@amd64-builder.daemonology.net:/usr/obj/usr /src/sys/GENERIC amd64 After running flawlessly for over a month, I started having sluggish behavior. Since this is a known problem with firefox 56, I exited and restarted it several times over the course of a few days. Then yesterday (2017-12-08) the system hung and crashed. I have narrowed the cause down to Thunderbird 52.4.0, or at least something associated with it. The system + X seem to still run fine; openoffice, firefox, gimp. When I attempt to start t-bird the cursor disappears almost immediately, followed by a long wait with the display apparently frozen, and then results in a crash and reboot. It seems t-bird should crash/dump core without crashing the system if it was just a t-bird problem, even if it's a bad binary image? I originally had crash dumps disabled, so changed dumpdev="NO" to "AUTO" in rc.conf but still no dump in /var/crash only thing in /var/crash is minfree, which says "2048" At reboot, I see the message "No suitable dump device was found" so presumably that is the cause of the missing dump. It may be my sys config, as /tmp and swap are memdisks. The disk has no swap or tmp partition; I'm not sure how or if I can modify fstab or the config to get swap on disk for a dump. >From fstab: /dev/ufs/hd250G1root / ufs rw,noatime 1 1 /dev/ufs/hd250G1var /var ufs rw,noatime 2 2 /dev/ufs/hd250G1usr /usr ufs rw,noatime 7 3 tmpfs /tmp tmpfs rw,mode=01777 0 0 md99 none swap sw,file=/usr/swap/swap,late 0 0 /var is 16G It seems like it may be corrupted disk data, but I'm wondering if there's a good way to diagnose that. In ~/.thunderbird/xxx.default (profile) directory, the last date on a file is the "lock" symlink, from (I think) the first crash. Other files show times 27 min earlier, which may be the last time t-bird semi-successfully started up. Interestingly, deleting the "lock" symlink and attempting to restart t-bird results in the "lock" symlink being recreated with the same (old!) timestamp, Dec 8 21:08. There's a chance this is caused by an incompatible library; I've rebuilt and updated several ports over the past month, and I don't know if I restarted t-bird during that period. But again, I would expect t-bird to crash but not the system. Any and all thoughts welcome. Thanks, Gary
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