I also see that log messages on raring 64 bits, but no locks so far since yesterday.
Sep 17 10:24:22 fede-desktop kernel: [ 24.899285] zram: module is from the staging directory, the quality is unknown, you have been warned. Sep 17 10:24:22 fede-desktop kernel: [ 24.899922] zram: Creating 2 devices ... Sep 17 10:24:22 fede-desktop kernel: [ 25.185351] quiet_error: 42 callbacks suppressed Sep 17 10:24:22 fede-desktop kernel: [ 25.185358] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185364] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185448] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185454] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185460] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185466] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185472] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185556] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185563] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:22 fede-desktop kernel: [ 25.185576] Buffer I/O error on device zram0, logical block 192016 Sep 17 10:24:23 fede-desktop kernel: [ 25.237044] Adding 768064k swap on /dev/zram0. Priority:5 extents:1 across:768064k SS Sep 17 10:24:23 fede-desktop kernel: [ 25.247694] Adding 768064k swap on /dev/zram1. Priority:5 extents:1 across:768064k SS -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1215513 Title: System locks up, requires hard reset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1215513/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs