I installed ssh-server to get to the bottom of this. When the computer froze, I ssh'ed into it. Surprise! It worked.
It turns out that this is not a kernel freeze. Mouse moves but Caps lock does not respond. In the ssh session, I went into top and htop. Nothing suspicious at all, in fact, there's no cpu usage at all! I do even know what to go on. Then I theorized that this is a graphics hardware problem. I went to test this out by restarting GDM. This little bit of kernel log is what you get: [ 723.628131] [drm:i915_gem_idle] *ERROR* hardware wedged [ 723.640543] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 791.378469] [drm:i915_gem_entervt_ioctl] *ERROR* Reenabling wedged hardware, good luck [ 835.163015] ata1.00: configured for UDMA/133 [ 835.163023] ata1: EH complete [ 835.163166] sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors: (320 GB/298 GiB) [ 835.163204] sd 0:0:0:0: [sda] Write Protect is off [ 835.163210] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 835.163265] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA I also attached the bigger kernel log to the message. ** Attachment added: "partial kernel log from ssh session" http://launchpadlibrarian.net/25826467/klog -- Kernel freezing on both ext3 and ext4, possible criminal is Firefox https://bugs.launchpad.net/bugs/327509 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
