Red Hat Bugzilla – Bug 490479
error when hot-unplugging a file-backed virtio disk
Last modified: 2009-12-18 04:02:05 EST
Created attachment 335373 [details]
dmesg output after the disk was hot-unplugged, including the kernel backtrace
Description of problem:
I had just added a new file-backed virtio disk to a running F10 guest on a F10 host. When I then removed the disk from the running host (using virt-manager), I got this message printed to the console:
WARNING: at drivers/base/core.c:122 device_release+0x66/0x68()
Device 'virtio2' does not have a release() function, it is broken and must be fixed.
The device appeared to be successfully removed (it no longer appeared in /proc/partitions in the running guest).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Add a file-backed virtio disk to a running guest
2. Remove the disk
Error message and kernel backtrace printed to the console
The device was apparently 'virtio2' because it was the second virtio device added to the system. When I reproduced the error again later it said: Device 'virtio4'...
Thanks for the report
Fixed a while ago upstream by:
So, it should be fixed in rawhide
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