kill a hung mount process
- by John P
I have a virtual machine drive that ran out of space, so I shutdown the VM, extended the volume using lvextend. After resizing the partition (ext3), I ran e2fsck on it, and it found and corrected errors. Unfortunately, when I ran efsck one more time, there were more errors that had to be fixed. I went through 3 rounds of e2fsck before I decided to try mounting it to clean up some space manually. I tried mounting it, but the mount process hung. I tried to "kill -9" the mount process, but that did not kill it. I killed the parent process, but that did not kill it either.
Any ideas on how to kill a rogue mount process?
Some evidence:
ps -l 13292
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
4 R 0 13292 1 99 85 0 - 17964 - ? 11:27 mount /dev/mapper/xen7-123p3 /tmp/p3/
lsof -p 13292
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
mount 13292 root cwd DIR 9,2 4096 25264129 /root
mount 13292 root rtd DIR 9,2 4096 2 /
mount 13292 root txt REG 9,2 61656 2916434 /bin/mount
mount 13292 root mem REG 9,2 144776 31457282 /lib64/ld-2.5.so
mount 13292 root mem REG 9,2 1718232 31457284 /lib64/libc-2.5.so
mount 13292 root mem REG 9,2 23360 31457291 /lib64/libdl-2.5.so
mount 13292 root mem REG 9,2 43808 31457783 /lib64/libblkid.so.1.0
mount 13292 root mem REG 9,2 247496 31457331 /lib64/libsepol.so.1
mount 13292 root mem REG 9,2 95464 31457337 /lib64/libselinux.so.1
mount 13292 root mem REG 9,2 154640 31457491 /lib64/libdevmapper.so.1.02
mount 13292 root mem REG 9,2 17936 31457472 /lib64/libuuid.so.1.2
mount 13292 root mem REG 9,2 56438208 12684878 /usr/lib/locale/locale-archive
mount 13292 root 0u CHR 136,11 0t0 13 /dev/pts/11 (deleted)
mount 13292 root 1u CHR 136,11 0t0 13 /dev/pts/11 (deleted)
mount 13292 root 2u CHR 136,11 0t0 13 /dev/pts/11 (deleted)
umount -f /tmp/p3/
umount2: Invalid argument
umount: /tmp/p3/: not mounted
