Red Hat Bugzilla – Bug 474568
freeze for approximately 30 seconds
Last modified: 2018-04-11 09:33:18 EDT
Created attachment 325677 [details]
backtrace of freezing firefox
Description of problem:
Firefox is sometimes freezing for longer time period. It's happening since firefox3 with or without flash application.
Version-Release number of selected component (if applicable):
I'm not sure how could it be reproduced. Maybe the backtrace will help. After running dbg it froze immediately.
How it looks:
It could happen when I'm editing bugzilla or when I'm switching from one desktop to another.
Hm, it seems to hang somewhere in nss/nspr, if the backtrace is relevant...
Kai, any thoughts on this?
It is no excuse for us, just to note that Marcela's primary desktop is KDE.
Where do you see a hang in nspr/nss? I don't see anything unusual.
Most threads wait for something to happen (waiting for pthread condition variables).
Some other threads are polling, but that doesn't seem unusual to me.
Can you try to run with your extensions disabled?
The next time you run into the freeze...
- does your cpu usage go up to 100% ?
- using gdb, can you repeatedly use continue and break again, and compare the threads, in order to identity a potentially looping thread?
Ok, I disabled all extension.
The cpu doesn't take more than usual because everything else is going just fine. I'll be waiting for another freeze.
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