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Description of problem:
Whenever I use an USB memory stick or an USB hard drive and try to shut down
my laptop, after unmounting (and unplugging) the USB devices, the shut down process stops with a kernel panic error:
Kernel panic - not syncing: drivers/block/cfg-iosched.c:1065: spin_is_locked on uninitialized spinlock f5971c1c. (Not tainted)
Only "power off" helps.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.plug in usb device (mem. stick or hard drive)
2.mount usb device
3.use usb device (cp/mv to/from usb device)
4.unmount usb device
5.unplug usb device
6. shut down computer
Actual Results: computer freezes
Expected Results: clean shutdown
please try the kernel at http://people.redhat.com/davej/kernels/Fedora/FC3/
that has a patch that should fix this.
I was having exactly the same problem on my Athlon based desktop PC and the
above kernel version (2.6.11-1.21_FC3) appears to fix the problem.
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which
may contain a fix for your problem. Please update to this new kernel, and
report whether or not it fixes your problem.
If you have updated to Fedora Core 4 since this bug was opened, and the problem
still occurs with the latest updates for that release, please change the version
field of this bug to 'fc4'.
This bug has been automatically closed as part of a mass update.
It had been in NEEDINFO state since July 2005.
If this bug still exists in current errata kernels, please reopen this bug.
There are a large number of inactive bugs in the database, and this is the only
way to purge them.