[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
I had 4 machines affected by this problem, 3x on Ubuntu 10.04 and 1 on 12.04, all with FF 13.0.1. It also seemed like Thunderbird was a problem, though not as bad as FF. Reboots "fixed" them all, but that's very disappointing. Ubuntu/ntp/GNU/Linux should handle time and leap- seconds more gracefully than this... :-( If I wanted to have time problems and have to reboot to fix things, I could run Windows. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
This bad behavior seems to have been caused by issues with futex system calls. Here's the most detailed description I've seen so far, including a small test program that can be used to replicate the behavior (I haven't tried it since it modifies the system time): https://lwn.net/Articles/504658/ Rather than rebooting, simply setting the system time manually or finding some other way to call settimeofday() would have also restored normal behavior. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
Just since I'm not sure I want to file another bug against something that may be in a library function or system call, I'll note here that mythfrontend and mythbackend processes (from MythTV) were also running hot on a machine I use as a DVR. Those processes are more heavily multi-threaded, so they showed well over 100% CPU usage. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
Big thank you, both of you. I was going crazy trying to find out the cause as I normally reboot only after a kernel update, and that was the last thing on my mind to try it. Fixed for me, too (12.04 / 13.0.1+build1-0ubuntu0.12.04.1). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
Thanks. I was beginning to feel a bit silly after a reboot fixed my issue as well. I had first tried restarting my X environment, thinking that some Gnome libraries or protocols might have gotten out of sync somehow. I rarely reboot my machine since issues can normally be resolved through other means. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
I'd like to confirm this on 12.04 with 13.0.1+build1-0ubuntu0.12.04.1. I'm seeing the same from chrome too, which is very odd. A reboot seems to have cleared it, leap second maybe? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: firefox (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
