firefox is pegging 2 CPUs at nearly 100%
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
firefox (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
Top is showing that 2 CPUs are being consumed at nearly 100% each:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3916 king 20 0 1160372 264036 50188 S 198.7 4.5 36:54.78 firefox
Seems like it is spinning in pthread_cond_wait()
(gdb) where
#0 pthread_
#1 0x00007fefa1de3f28 in PR_WaitCondVar () from /usr/lib/
#2 0x00007fefa1de4218 in PR_Wait () from /usr/lib/
#3 0x00007fef9dfdd172 in ?? () from /usr/lib/
#4 0x00007fef9dfde17d in ?? () from /usr/lib/
#5 0x00007fef9e99e0ae in ?? () from /usr/lib/
#6 0x00007fef9e99e0cd in ?? () from /usr/lib/
#7 0x00007fef9dfa421b in ?? () from /usr/lib/
#8 0x00007fef9e99e387 in ?? () from /usr/lib/
#9 0x00007fef9e99e3c3 in ?? () from /usr/lib/
#10 0x00007fef9dfbf2b6 in ?? () from /usr/lib/
#11 0x00007fef9dfbf88a in ?? () from /usr/lib/
#12 0x00007fef9dfa70a0 in ?? () from /usr/lib/
#13 0x00007fef9eeba08f in ?? () from /usr/lib/
#14 0x00007fef9eebe940 in ?? () from /usr/lib/
#15 0x00007fef9eebeb5a in XRE_main () from /usr/lib/
#16 0x00007fefa33503c1 in _start ()
(gdb) quit
..and looks like it's possibly spinning on a futex
System calls traced:
PID Process Syscall Count Rate/Sec Total μSecs % Call Time
3916 firefox futex 1 0.0167 0 0.0000
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: firefox 28.0+build1-
ProcVersionSign
Uname: Linux 3.13.0-
AddonCompatChec
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
BrokenPermissions:
sessionstore.bak (0o600, wrong owner)
sessionstore.js (0o600, wrong owner)
BuildID: 20140313141126
Channel: Unavailable
CurrentDesktop: Unity
Date: Sat Mar 15 16:32:27 2014
EcryptfsInUse: Yes
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
IncompatibleExt
English (GB) Language Pack - <email address hidden>
English (South Africa) Language Pack - <email address hidden>
Default - {972ce4c6-
InstallationDate: Installed on 2013-12-09 (95 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131209)
IpRoute:
default via 192.168.0.1 dev eth0 proto static
192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.14 metric 1
192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.20 metric 9
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
MostRecentCrashID: bp-77eb6b98-
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=
RelatedPackageV
rhythmbox-mozilla 3.0.1-1ubuntu15
google-talkplugin 5.1.5.0-1
totem-mozilla 3.10.1-1ubuntu3
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
RunningIncompat
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog: Mar 15 16:30:27 lenovo kernel: [ 1278.310072] ptrace of pid 3916 was attempted by: gdb (pid 5412)
dmi.bios.date: 05/24/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ET31WW (1.11 )
dmi.board.
dmi.board.name: 2320CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 2320CTO
dmi.product.
dmi.sys.vendor: LENOVO
Changed in firefox (Ubuntu): | |
importance: | Undecided → Medium |
Status changed to 'Confirmed' because the bug affects multiple users.