Closed
Bug 516227
Opened 15 years ago
Closed 15 years ago
firefox eats up lots of cpu
Categories
(Firefox :: General, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 508427
People
(Reporter: david, Unassigned)
Details
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.14) Gecko/2009090217 Ubuntu/9.04 (jaunty) Firefox/3.0.14
Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.14) Gecko/2009090217 Ubuntu/9.04 (jaunty) Firefox/3.0.14
especially with lots of windows and tabs firefox tends to go into a loop that eats up a full cpu
a strace of the offending thread looks like this
ead(3, 0x1eeee24, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=20, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=49, events=POLLIN}, {fd=122, events=POLLIN}, {fd=24, events=POLLIN}], 11, 0) = 1 ([{fd=24, revents=POLLIN}])
read(24, "\372"..., 1) = 1
read(3, 0x1eeee24, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=20, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=49, events=POLLIN}, {fd=122, events=POLLIN}, {fd=24, events=POLLIN}], 11, 0) = 0 (Timeout)
write(30, "\372"..., 1) = 1
read(3, 0x1eeee24, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=20, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=49, events=POLLIN}, {fd=122, events=POLLIN}, {fd=24, events=POLLIN}], 11, 0) = 1 ([{fd=24, revents=POLLIN}])
read(24, "\372"..., 1) = 1
read(3, 0x1eeee24, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=20, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=49, events=POLLIN}, {fd=122, events=POLLIN}, {fd=24, events=POLLIN}], 11, 0) = 0 (Timeout)
read(3, 0x1eeee24, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=20, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=49, events=POLLIN}, {fd=122, events=POLLIN}, {fd=24, events=POLLIN}], 11, 0) = 0 (Timeout)
Reproducible: Sometimes
Steps to Reproduce:
it tends to happen more frequently the more tabs and windows are in use. open a lot of windows and tabs, exit saving which ones are open then start firefox
Actual Results:
in the window where firefox was started I have two errors
nsHeaderInfo: registerSelf called!
nsHeaderInfo: registerSelf called!
if I strace the thread that is eating all the cpu firefox seems to be in a loop of polling and getting -EAGAIN. at the moement (with 3.5.4) it is eating about 50% of a cpu, but I have seen it peg a cpu completely (nothing betwen the read and poll)
if I do this on a single cpu system it effectivly locks up the system. on a SMP box the system can limp along loosing the capability of the one cpu
Reporter | ||
Comment 1•15 years ago
|
||
I have seen this problem on both x86 and amd_64 It has been happening since at least firefox 3
Comment 2•15 years ago
|
||
To rule out extension bugs and corruptions in the profile, can you retest in safe-mode and with a new profile?
http://support.mozilla.com/en-US/kb/Safe+Mode
http://support.mozilla.com/en-US/kb/Basic+Troubleshooting#Make_a_new_profile
Version: unspecified → 3.0 Branch
Reporter | ||
Comment 3•15 years ago
|
||
I first duplicated the problem with --safe-mode
I then renamed .mozilla to .mozilla.old restarted firefox (in safe mode) to have it create a new .mozilla directory. I then stopped firefox, copied sessionstore.js to the new .mozilla directory and restarted firefox (in safe mode) again. it I had the same problem
Comment 4•15 years ago
|
||
Please update to 3.5.3 or later as performance has been improved in that version. also, were you on website such as streaming video, etc.?
Severity: critical → major
Reporter | ||
Comment 5•15 years ago
|
||
I have the same problem with 3.5.3
in fact while trying to login for this reply I had to shut down firefox and restart as it got into a tight loop that made it unuseable
sched_yield() = 0
read(3, 0x7febd35a9074, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=23, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=63, events=POLLIN}], 9, 0) = 0 (Timeout)
sched_yield() = 0
read(3, 0x7febd35a9074, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=23, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=63, events=POLLIN}], 9, 0) = 0 (Timeout)
sched_yield() = 0
read(3, 0x7febd35a9074, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=23, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=63, events=POLLIN}], 9, 0) = 0 (Timeout)
sched_yield() = 0
read(3, 0x7febd35a9074, 4096) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=14, events=POLLIN|POLLPRI}, {fd=18, events=POLLIN|POLLPRI}, {fd=22, events=POLLIN|POLLPRI}, {fd=23, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN|POLLPRI}, {fd=16, events=POLLIN|POLLPRI}, {fd=63, events=POLLIN}], 9, 0) = 0 (Timeout)
some of the sitesin the tabs probably do have video, but in safe mode flash should be blocked and in normal mode I use flashblock so they don't sit and run all the time. at most I have a couple of flash items running at any one time and the cpu load does not seem to be related to that (if I don't start any flash items I still have the problem)
even after all windows had closed it could not exit
at that point in time strace said
Comment 6•15 years ago
|
||
Actually, flash is not blocked in safe mode :). Only addons. This could be something beside flash, quickitime, silverlight, etc. Although you are on linux.
Comment 7•15 years ago
|
||
Maybe a dupe of Bug 508427?
Reporter | ||
Comment 8•15 years ago
|
||
it does look very similar to that bug. if he is seeing that with 20-30 tabs, I have a LOT more so the problem looks more significant to me.
lsof shows filehandle 3 as
firefox-3 10237 dlang 3u unix 0xffff88006b06db80 8141569 socket
(I can send my sessionstore.js to someone, but I don't want to post it here)
by the way, what is firefox doing trying to use sched_yield()? that call can be a noop in many cases.
Reporter | ||
Updated•15 years ago
|
Status: UNCONFIRMED → RESOLVED
Closed: 15 years ago
Resolution: --- → DUPLICATE
You need to log in
before you can comment on or make changes to this bug.
Description
•