Package: dump Version: 0.4b46-3+b1 Severity: normal Dear Maintainer,
(I have tried also buster package, 0.4b46-5, no differences) I am using -Q option of "dump/restore" to generate/provide a QuickFileAccess file for our LTO-4 tape backups. We regularly archive our qfa files, and we noted that, strating from June 2018, our qfa reports "0" as tape pos for all inodes. # head -n 20 dumptest.qfa 495115637697 1.0 1594885722 ino tapeno tapepos 13 1 0 177 1 0 209 1 0 241 1 0 273 1 0 305 1 0 369 1 0 411 1 0 420 1 0 435 1 0 465 1 0 477 1 0 483 1 0 489 1 0 499 1 0 If I try to rebuild the qfa file from the same dump tape, tapepos seems ok: # head -n 20 dumptest_restore.qfa 495115637697 1.0 1594885224 ino tapeno tapepos 13 1 9 14 1 9 15 1 9 149 1 9 150 1 9 151 1 9 152 1 9 153 1 9 154 1 9 155 1 9 156 1 9 157 1 9 158 1 9 159 1 9 160 1 9 stoptions for the drive are: # mt-st -f /dev/nst1 stshowoptions The options set: buffer-writes async-writes read-ahead can-bsr can-partitions scsi2logical I have rebuilt the package from source, adding explicitly the --enable-qfa --enable-qfadebug configure options, and dump in verbose mode reports 0 as tapepos (extract): DUMP: dumping regular inode 303 DUMP: dumping regular inode 304 DUMP: inode 241 at tapepos 0 DUMP: inode 241 at tapepos 0 DUMP: dumping regular inode 305 DUMP: dumping regular inode 306 As a note, enabling tape driver debug with: # mt-st -f /dev/nst0 stsetoption debug I see the driver reporting the tape positions request in syslog only during restore: Jul 16 09:38:37 lxsrv6 kernel: [12163620.285402] st 2:0:0:2: [st1] Got tape pos. blk 26 part 0. Jul 16 09:38:37 lxsrv6 kernel: [12163620.303366] st 2:0:0:2: [st1] Got tape pos. blk 27 part 0. but not during dump. If you need any further information I will try to do my best to provide it. Roberto Resoli -- System Information: Debian Release: 9.9 APT prefers oldstable APT policy: (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 4.15.18-13-pve (SMP w/8 CPU cores) Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE=it_IT.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages dump depends on: ii e2fslibs 1.43.4-2+deb9u1 ii libblkid1 2.29.2-1+deb9u1 ii libbz2-1.0 1.0.6-8.1 ii libc6 2.24-11+deb9u4 ii libcomerr2 1.43.4-2+deb9u1 ii liblzo2-2 2.08-1.2+b2 ii libreadline7 7.0-3 ii libselinux1 2.6-3+b3 ii tar 1.29b-2+pve.1 ii zlib1g 1:1.2.8.dfsg-5 dump recommends no packages. dump suggests no packages. -- no debconf information
