Package: backuppc Version: 2.1.2-6 Severity: important
I can state the problem this way: "backuppc corrupts a reiserfs partition" and "a ls or find command running on a corrupted reiserfs partition hangs the server". I'm using backuppc since 2004, under sid; that time I had compiled backuppc by miself, since it was not in the package list. Then I migrated to sarge (using backuppc included in the release) and now I'm using it with etch. I'm always been using reiserfs for the data partition, with two HD in RAID 1 configuration. More or less one time a year, backuppc hanged the backup server. Looking for a solution I discovered that the data partition was corrupted and simply by running an "ls" or a "find" command in the incriminated dir, the server hangs and stops responding to the console or the network. The problem was caused by the BackupPC script that was running an ls or similar command in that dir, and it hanged the system. I'm not able to determine the cause of the corruption. The server is powered using an UPS, and I'm (almost) sure that has no other problem (that is, excluding the problem that I'm now reporting); smartmontools is up an running, no HD error or HW falure was detected. I can imagine only three possible causes for these hangs: - the high number of links that backuppc creates in its data directory; - the too nested directory structure that backuppc uses for the backupped pc; - the long names that backuppc uses for the linked filenames The backupped network has only 6 machines, all running debian linux. The backup server has also a SCSI adapter that holds a 4GB streamer that I use for a weekly tape backups. I know that people is making bigger backups (mine is only 60 GB for data partition) and on bigger networks (more than 100 pc, according to various mailing list), so I'm not pushing neither backuppc nor reiserfs to their limits. I know also that reiserfs should not have problem on managing data directory; also, we use it as our fs for all machines, and since 2003 we had no problem with it, excluding 2 HD that were defective (and that were detected by smartmon tool, so it was not a problem of reiserfs). In my understanding the problem it's caused by the interaction between them (reiserfs and backuppc). The problem was solved by running reiserfsck --rebuild-tree; this is the log that was produced: ####### Pass 0 ####### block 6428678: The number of items (26624) is incorrect, should be (1) - corrected block 6428678: The free space (500) is incorrect, should be (4048) - corrected pass0: vpf-10110: block 6428678, item (0): Unknown item type found [666668288 0 0xfffce853 ??? (15)] - deleted pass0: vpf-10590: block 13076527, item 3: Wrong order of items - change the object_id of the key [10156796 10156879 0x1 DIR (3)] to 10156815 5229398 directory entries were hashed with "r5" hash. ####### Pass 1 ####### ####### Pass 2 ####### ####### Pass 3 ######### ####### Pass 3a (lost+found pass) ######### Please, if you think that this is a bug of reiserfs, direct me to the reiserfs package that I shoud file this bug (or it is a kernel problem?) Thanks, Luca -- System Information: Debian Release: 4.0 APT prefers stable APT policy: (500, 'stable') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18-6-686 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages backuppc depends on: ii adduser 3.102 Add and remove users and groups ii apache2-mpm-prefork [apach 2.2.3-4+etch3 Traditional model for Apache HTTPD ii debconf [debconf-2.0] 1.5.11etch1 Debian configuration management sy ii dpkg 1.13.25 package maintenance system for Deb ii exim4 4.63-17 metapackage to ease exim MTA (v4) ii exim4-daemon-light [mail-t 4.63-17 lightweight exim MTA (v4) daemon ii libarchive-zip-perl 1.16-1 Module for manipulation of ZIP arc ii libcompress-zlib-perl 1.42-2 Perl module for creation and manip ii perl [libdigest-md5-perl] 5.8.8-7etch1 Larry Wall's Practical Extraction ii perl-suid 5.8.8-7etch1 Runs setuid Perl scripts ii samba-common 3.0.24-6etch9 Samba common files used by both th ii smbclient 3.0.24-6etch9 a LanManager-like simple client fo ii tar 1.16-2etch1 GNU tar ii wwwconfig-common 0.0.48 Debian web auto configuration backuppc recommends no packages. -- debconf information: * backuppc/add-lines: true * backuppc/configuration-note: -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
