Public bug reported:
Binary package hint: firefox-3.0
This concerns firefox-3.0 3.0.13+nobinonly-0ubuntu0.9.04.1 in Jaunty.
I hit the "Attach file" button in a Web-mail page, which brings up a
file-selection dialog. Normally, this works fine, but here, the window
comes up, everything but the actual file list is painted, and then...
the CPU is at 100%, and the browser sits unresponsive, not even
repainting the window.
After a minute or two, I checked out what Firefox was doing by attaching
with strace(1), and saw a flurry of futex() calls flying past. I
captured a few seconds' worth of strace(1) output in a file (the log
grew very fast), and figured I would "compress" it by running it through
"uniq -c". The result is attached.
This bug is very difficult to reproduce---I've never run into it before,
and I've attached a lot of files in that Web-mail client---and likely
represents an unanticipated corner case.
** Affects: firefox-3.0 (Ubuntu)
Importance: Undecided
Status: New
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"Browse..." file dialog leads to mutex-related deadlock
https://bugs.launchpad.net/bugs/413872
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