Red Hat Bugzilla – Bug 247946
Kernel panic at boot when LVM root shapshot is full
Last modified: 2013-02-28 23:05:49 EST
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User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:220.127.116.11) Gecko/20070603 Fedora/18.104.22.168-2.fc7 Firefox/22.214.171.124
Description of problem:
When an lvm snapshot is created of the root filesystem and this snapshot gets full, then the machine hangs with a kernel panic at boot time.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. lvcreate -s -n fglrx_test -L 100M /dev/VolGroup00/LogVol00
2. <use the machine until the shapshot is full>
Reading all physical volumes. This may take a while...
device-mapper: table: 253:3: snapshot: Failed to read shapshot metadata
device-mapper: reload ioctl failed: Invalid argument
mount: could not find filesystem '/dev/root'
setuproot: moving /dev failed: No such file or directory
setuproot: error mounting /proc: No such file or directory
setuproot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!
A normal boot
Patch in the way to stable kernel.
For reference here:
Fixed since kernel 126.96.36.199 (in f7 updates and rawhide).