Following upgrade to squeeze from lenny last week, tar (from
tar_1.23-3_i386.deb) segfaults on incremental backup of root:
/usr/local/sbin/disk-backup: line 220: 32443 Segmentation fault
$TAR --create --totals --verbose --one-file-system --gzip
--exclude-from=$EXCLUDE_FILE
--file="$TARGET/$MOUNTPOINTNAME.diff.$DAY.$HOUR.tz"
--listed-incremental="$TARGET/$MOUNTPOINTNAME.full.snar.diff" $SOURCE >
$LOG 2>&1
dmesg:
tar[897]: segfault at 0 ip 0807672d sp bfeb4e70 error 4 in
tar[8048000+4c000]
With variables expanded:
tar --create --totals --verbose --one-file-system --gzip
--exclude-from=/tmp/32617.excludes
--file=/data/data4/sv37/backup/3/root.diff.10.08.tz
--listed-incremental=/data/data4/sv37/backup/3/root.full.snar.diff /
Installing tar_1.25-3_i386.deb from wheezy, there is no segfault but
only the / directory is in the archive:
# tar tzvf root.diff.10.08.tz
drwxr-xr-x root/root 171 2011-05-05 15:20 ./
Which looks like bug #604394. Reverting to tar_1.20-1+lenny1_i386.deb
from lenny. Backups works as before:
/usr/local/sbin/disk-backup: Started Differential Backup of / at Tue May
10 08:46:24 BST 2011
/usr/local/sbin/disk-backup: Summary Total bytes written: 65320960
(63MiB, 3.0MiB/s)
/usr/local/sbin/disk-backup: Completed Differential Backup of / at Tue
May 10 08:46:46 BST 2011
# tar tzvf root.diff.10.08.tz | tail
-rw-r--r-- root/root 69556 2011-05-10 08:35 var/log/sysstat/sa10
-rw-r--r-- root/root 210322 2011-05-10 06:28 var/log/sysstat/sar09
-rw-r--r-- root/root 5 2011-05-09 14:39 var/run/sshd.pid
-rw-rw-r-- root/utmp 5376 2011-05-10 08:14 var/run/utmp
-rw-r--r-- root/root 1753 2011-05-10 08:14
var/run/ConsoleKit/database
-rw-r--r-- root/root 76 2011-05-10 08:14 var/run/console/root
-rw-r--r-- root/root 110592 2011-05-09 21:22
var/run/samba/connections.tdb
-rw-r--r-- root/root 28672 2011-05-10 08:37
var/run/samba/unexpected.tdb
prw--w--w- postfix/postdrop 0 2011-05-10 08:37
var/spool/postfix/public/pickup
prw--w--w- postfix/postdrop 0 2011-05-10 08:36
var/spool/postfix/public/qmgr
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