Package: xfsprogs Version: 3.0.2 Severity: normal on my mythtv box, sda4, sdc4, sdb1, sdd1 are all XFS-formatted storage partitions (SATA drives) for DVB-T recordings.
/dev/sdc4 xfs 248G 216G 32G 88% /export/myth2 /dev/sda4 xfs 248G 215G 34G 87% /export/myth3 /dev/sdd1 xfs 466G 384G 83G 83% /export/myth6 /dev/sdb1 xfs 466G 386G 81G 83% /export/myth7 A few days ago, they were all reporting 98+% fragmentation. about a year's worth of recording and transcoding both locally and over NFS4. after running xfs_fsr on them several times over the last few days, fragmentation levels have reduced significantly, but xfs_db is segfaulting when checking some of the partitions...and it seems to be becoming more likely as the drives are defragged: yesterday morning, checking fragmentation on TWO of the partitions segfaulted. indra:~# xfs_db -c frag -r /dev/sdc4 Segmentation fault indra:~# xfs_db -c frag -r /dev/sda4 actual 1902, ideal 365, fragmentation factor 80.81% indra:~# xfs_db -c frag -r /dev/sdd1 actual 1123, ideal 452, fragmentation factor 59.75% indra:~# xfs_db -c frag -r /dev/sdb1 Segmentation fault after running xfs_fsr on them again for 6 hours while i was at work, xfs_db is now segfaulting on three of the partitions. indra:~# xfs_db -c frag -r /dev/sdc4 Segmentation fault indra:~# xfs_db -c frag -r /dev/sda4 Segmentation fault indra:~# xfs_db -c frag -r /dev/sdd1 actual 1314, ideal 454, fragmentation factor 65.45% indra:~# xfs_db -c frag -r /dev/sdb1 Segmentation fault NOTE: I have attached the output of 'strace xfs_db -c frag -r /dev/sdc4' i suspect that if i run xfs_fsr today and completely defrag sdd1, running 'xfs_db -c frag /dev/sdd1' tonight will also segfault. I'll post the output of that tonight. the partitions themselves and the files on them, are working perfectly - and file i/o is noticably faster than it was before. the problem is only on reporting frag levels, and it seems to occur when when fragmentation levels approach (or maybe equal) 0 percent. the partitions have only hundreds of large (anywhere from 0.5GB to ~15GB each) files on them each, not tens of thousands as a general-purpose partition would have. I think the small number of files is significant. On another system which has one dedicated mythtv storage partition, xfs_db -c frag also segfaults, but not on the other general-purpose XFS partitions. it was not segfaulting a few days ago before i started defragging the partitions...it was also reporting around 99% fragmentation factor. /dev/md3 xfs 931G 826G 106G 89% / /dev/sdb2 xfs 458G 355G 104G 78% /export/myth4 /dev/sde1 xfs 466G 454G 13G 98% /export/backup1 /dev/sdd1 xfs 466G 413G 53G 89% /export/backup2 ganesh:~# time xfs_db -c frag -r /dev/md3 actual 1356988, ideal 1348888, fragmentation factor 0.60% ganesh:~# xfs_db -c frag -r /dev/sde1 actual 1172652, ideal 1168111, fragmentation factor 0.39% ganesh:~# xfs_db -c frag -r /dev/sdd1 actual 1107119, ideal 1101640, fragmentation factor 0.49% ganesh:~# xfs_db -c frag -r /dev/sdb2 Segmentation fault -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (990, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.30 (SMP w/4 CPU cores; PREEMPT) Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1) Shell: /bin/sh linked to /bin/bash Versions of packages xfsprogs depends on: ii libc6 2.9-13 GNU C Library: Shared libraries ii libreadline5 5.2-4 GNU readline and history libraries ii libuuid1 1.41.6-1 Universally Unique ID library xfsprogs recommends no packages. Versions of packages xfsprogs suggests: ii acl 2.2.47-2 Access control list utilities ii attr 1:2.4.43-2 Utilities for manipulating filesys pn quota <none> (no description available) ii xfsdump 3.0.2 Administrative utilities for the X -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
