This morning I found that there is another kernel upgrade available (3.0.0-16.29, up from 3.0.0-16.28). I installed this kernel and booted up into it with no trouble:
william@ishtar:~$ uname -a Linux ishtar 3.0.0-16-generic #29-Ubuntu SMP Tue Feb 14 12:49:42 UTC 2012 i686 i686 i386 GNU/Linux Running this kernel, I executed the qemu-img command to create a disk image that reliably causes this problem to occur: william@ishtar:~/test$ qemu-img create -f raw Ubuntu-11.04-desktop.img 5G Formatting 'Ubuntu-11.04-desktop.img', fmt=raw size=5368709120 This is running on my encrypted home directory. Watching in top, I saw this command alternate between 20 and 60% cpu until the image file grew to around 1Gb in size, then the CPU percent stayed pegged at 100% and the file did not get any bigger. Up to this point this is behaving exactly like the bug report issue; however, with this kernel I am able to kill this process. Ctl-C in the terminal killes the process, as does kill <PID>. The VirtualBox VBoxSVC process goes straight into the consuming 100% cpu state when creating a big disk image. However, as with the qemu-img command, I am now able to kill that process, too. At this time, the 100% zombie process problem seems to be fixed with this latest kernel update; however, the issue of creating gigabyte sized files with both of these tools on an encrypted home directory still exists. Both of these applications run with no issues on a non-encrypted directory. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925309 Title: unkillable process consuming 100% cpu time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/925309/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
