Red Hat Bugzilla – Bug 156050
Kernel panic, uninitialized spinlock in block/cfq-iosched.c:1065
Last modified: 2007-11-30 17:11:04 EST
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050416 Fedora/1.0.3-1.3.1 Firefox/1.0.3 Description of problem: On shutdown, I once saw a kernel panic, uninitialized spinlock in block/cfq-iosched.c:1065 From my written notes: Stopping cups: Kernel panic - not syncing: drivers/block/cfq-iosched.c:1065: spin_is_locked on uninitialized spinlock ed89301c. (Not tainted) I've only seen this once, but due to regressions in other behavior for this kernel, I'm running kernel-2.6.10-1.770_FC3 for the most part. Version-Release number of selected component (if applicable): kernel-2.6.11-1.14_FC3 How reproducible: Didn't try Steps to Reproduce: 1. Shutdown computer Actual Results: Saw kernel panic message as described above. Expected Results: Don't panic. Additional info:
Further testing.... I can get this again on shutdown with kernel-2.6.11-1.14_FC3. I'm not finding anything in /var/log/* about it, so I'm going by the notes I jotted down: I got the same kernel panic message as before, then "atkbd.c: Spurious ACK on isa0060/serio0. Some program, like XFree86, might be trying to access hardware directly." scrolling on the screen. I had to use the power button to shutdown, and the system complained of an unclean shutdown when I powered up again.
*** This bug has been marked as a duplicate of 155472 ***