Red Hat Bugzilla – Bug 156050
Kernel panic, uninitialized spinlock in block/cfq-iosched.c:1065
Last modified: 2007-11-30 17:11:04 EST
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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):
Steps to Reproduce:
1. Shutdown computer
Actual Results: Saw kernel panic message as described above.
Expected Results: Don't panic.
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
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 ***