I tried the Ubuntu kernel 3.13RC2, and the CPU user, sys, idle, and wait information making no sense at all issue remains.
As I see it now, if there is a fb0 device, then the issue will exist: doug@test-smy:~$ ls -l /dev/fb0 crw-rw---- 1 root video 29, 0 Dec 1 08:25 /dev/fb0 If there is not a fb0 device, then the issue will not exist (but I have to use ssh to communicate with the server). It doesn't matter which frame buffer driver is used: Nov 30 19:34:26 test-smy kernel: [ 6.720259] vesafb: framebuffer at 0xf8000000, mapped to 0xc8800000, using 3072k, total 3072k Nov 29 15:22:34 test-smy kernel: [ 6.873147] simple-framebuffer simple-framebuffer.0: fb0: simplefb registered! as a side note, kernel 3.13 seems to use the simple-framebuffer, regardless of the VESA stuff being "y" in the config: doug@test-smy:~$ grep framebuffer /var/log/kern.log Dec 1 08:25:21 test-smy kernel: [ 6.734202] simple-framebuffer simple-framebuffer.0: framebuffer at 0xf8000000, 0x300000 bytes, mapped to 0xc8800000 Dec 1 08:25:21 test-smy kernel: [ 6.734335] simple-framebuffer simple-framebuffer.0: format=r8g8b8, mode=1024x768x24, linelength=4096 Dec 1 08:25:21 test-smy kernel: [ 6.939867] simple-framebuffer simple-framebuffer.0: fb0: simplefb registered! I have searched bugzilla.kernel.org for any similar bug report and didn't find one (which doesn't mean there isn't one, just that I didn't find it). I compiled and tried the kernel 3.13RC2 from kernel.org, with the same results. I have not tried to compile and try a version with the config file reversions yet. Should I go upstream and file a bug on bugzilla.kernel.org? If yes, what would I file it under, as it is not clear to me? This issue appears to be related to recent work involving "CONFIG_X86_SYSFB" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1254920 Title: CPU utilization / accounting issues To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1254920/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
