Public bug reported:
Sporadically (sometimes nearly always) thunderbird consumes 100% CPU
when I try to close the program.
Investigation with ltrace shows an infinite sequence of these calls:
pthread_mutex_unlock(0x7fd8786d9040, 0x7fd8786d9670, 0x40000000, 13) = 0
pthread_mutex_lock(0x7fd8786d9040, 177, 0, 0x2f7e) = 0
pthread_mutex_unlock(0x7fd8786d9040, 0, 8192, 13) = 0
pthread_mutex_lock(0x7fd8786d9040, 184, 0, 3) = 0
pthread_mutex_unlock(0x7fd8786d9040, 0x7fd8786d9670, 0x40000000, 13) = 0
pthread_mutex_lock(0x7fd8786d9040, 177, 0, 0x2f7e) = 0
pthread_mutex_unlock(0x7fd8786d9040, 0, 8192, 13) = 0
pthread_mutex_lock(0x7fd8786d9040, 184, 0, 3) = 0
Then I have to abort thunderbird with 'kill -TERM'.
I'm running thunderbird 1:31.8.0+build1-0ubuntu0.14.04.1 on Ubuntu
14.04.2 LTS (trusty) on a x86_64 (Core2 Duo) system.
Disabling all extensions didn't help (but somtimes changed the behaviour
for a number of starts/stops - different timing?).
** Affects: thunderbird (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1479059
Title:
sporadic livelock blocks quitting thunderbird
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