I was closing tabs in Firefox and restoring one accidentally closed when the screen froze up and the hard drive got persistently busy. I found the following in my system logs: ============================================================================= BUG kmalloc-32 (Not tainted): Object already free ----------------------------------------------------------------------------- INFO: Allocated in drm_alloc+0xd/0xf [drm] age=223078871 cpu=0 pid=2061 INFO: Freed in drm_rmmap_locked+0x140/0x14a [drm] age=250 cpu=0 pid=2061 INFO: Slab 0xc1926d70 objects=51 used=43 fp=0xe9d62820 flags=0x40000083 INFO: Object 0xe9d626e0 @offset=1760 fp=0xe9d621e0 Bytes b4 0xe9d626d0: 6e 05 00 00 5b d0 fb ff 5a 5a 5a 5a 5a 5a 5a 5a n...[<D0><FB><FF>ZZZZZZZZ Object 0xe9d626e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object 0xe9d626f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk<A5> Redzone 0xe9d62700: bb bb bb bb <BB><BB><BB><BB> Padding 0xe9d62728: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ Pid: 2061, comm: Xorg Not tainted 2.6.27.5-41.fc9.i686.debug #1 [<c0491498>] print_trailer+0xe1/0xe9 [<c04917cf>] object_err+0x25/0x30 [<c0492c36>] __slab_free+0x1a8/0x28e [<c0492f0a>] kfree+0xc4/0xfd [<ee9be25f>] ? drm_vm_shm_close+0x181/0x191 [drm] [<ee9be25f>] ? drm_vm_shm_close+0x181/0x191 [drm] [<ee9be25f>] drm_vm_shm_close+0x181/0x191 [drm] [<c048355c>] ? remove_vma+0x55/0x5b [<c0483537>] remove_vma+0x30/0x5b [<c0483625>] exit_mmap+0xc3/0xde [<c0428978>] mmput+0x3a/0x8b [<c042be89>] exit_mm+0xe8/0xf0 [<c042d6d7>] do_exit+0x1e1/0x796 [<c042dcea>] do_group_exit+0x5e/0x85 [<c043616f>] get_signal_to_deliver+0x27f/0x296 [<c04472ea>] ? trace_hardirqs_off_caller+0x15/0x91 [<c0402f50>] do_notify_resume+0x71/0x669 [<c0434c66>] ? do_tkill+0xf7/0x11a [<c0435d2d>] ? sigprocmask+0xba/0xc1 [<c040841b>] ? sched_clock+0x8/0xb [<c0446908>] ? lock_release_holdtime+0x30/0x125 [<c04480b8>] ? trace_hardirqs_on+0xb/0xd [<c044808c>] ? trace_hardirqs_on_caller+0xf9/0x11a [<c0464f22>] ? audit_syscall_entry+0xf9/0x123 [<c0403da4>] work_notifysig+0x13/0x1b ======================= FIX kmalloc-32: Object at 0xe9d626e0 not freed This is with kernel-debug-2.6.27.5-41.fc9.i686. The Caps Lock key stopped working after that, but after the kernel oops at 13:29:11, I was still getting some messages: Nov 26 13:29:23 diet-anarchy NetworkManager: <info> (wlan0): device state change: 8 -> 3 Nov 26 13:29:23 diet-anarchy NetworkManager: <info> (wlan0): deactivating device. Nov 26 13:29:27 diet-anarchy NetworkManager: <info> wlan0: canceled DHCP transaction, dhcp client pid 4157 Nov 26 13:29:28 diet-anarchy NetworkManager: <WARN> check_one_route(): (wlan0) error -34 returned from rtnl_route_del(): Sucess#012
Created attachment 325547 [details] Errors found in /var/log/messages I was surfing the web in Firefox and downloading podcasts in Rhythmbox when the X server seemed to crash. There was some flickering and the "X" cursor appeared on the screen, immovable by the mouse, and the Caps Lock key stopped working. The attached appeared in my system log, which seems similar to the earlier problem. This is with kernel-debug-2.6.27.5-41.fc9.i686 and xorg-x11-server-Xorg-1.5.2-3.fc9.i386. Looking back in bugzilla, it looks like I experienced this before in bug 470571 and bug 466190, and another user reported a similar problem in bug 437318.
X crashed again today with the same symptoms as the last comment, and the same trace as the original report. This is now with kernel-debug-2.6.27.9-73.fc9.i686 and xorg-x11-server-Xorg-1.5.2-3.fc9.i386.
This has happened 3 times this week with kernel-debug-2.6.27.12-78.2.8.fc9.i686. 8(
*** Bug 470571 has been marked as a duplicate of this bug. ***
*** Bug 466190 has been marked as a duplicate of this bug. ***
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