[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-08 Thread JP Vossen
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

[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-02 Thread Mike Hicks
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/

[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-01 Thread Launchpad Bug Tracker
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 Desktop Packages, which is subscribed to firefox in Ubuntu.

[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-01 Thread Brian Brazil
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 Desktop Packages, which is subscribed to firefox

[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-01 Thread Mike Hicks
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

[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-01 Thread tenpou gensui
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

[Desktop-packages] [Bug 1019708] Re: Firefox pegs CPU usage immediately, even in safe mode

2012-07-01 Thread Mike Hicks
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