Hello I experience recurent ffs corruption on a NetBSD-7.1/i386 machine running XEN3PAE_DOMU kernel.
The VM has two filesystems and it keeps corrupting them. It will complain about unallocated inodes an bad file descriptors, and a fsck will remove a bunch of files. Other VM on the machine have no problems, which suggests it is not a disk problem. Below is a typical fsck at the end of which /us/pkg/sbin is gone. Does that rings a bell for someone? # fsck -fy / ** /dev/rxbd0a ** File system is already clean ** Last Mounted on / ** Root file system ** Phase 1 - Check Blocks and Sizes PARTIALLY ALLOCATED INODE I=829440 CLEAR? yes PARTIALLY ALLOCATED INODE I=829441 CLEAR? yes ** Phase 2 - Check Pathnames UNALLOCATED I=829440 OWNER=0 MODE=0 SIZE=0 MTIME=Jan 1 01:00 1970 NAME=/kern REMOVE? yes UNALLOCATED I=829441 OWNER=0 MODE=0 SIZE=0 MTIME=Jan 1 01:00 1970 NAME=/usr/X11R6/lib/X11/fonts/Type1 REMOVE? yes UNALLOCATED I=829442 OWNER=65539 MODE=0 SIZE=0 MTIME=Jan 1 01:00 1970 NAME=/usr/pkg/sbin REMOVE? yes ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts LINK COUNT DIR I=2 OWNER=0 MODE=40755 SIZE=1024 MTIME=May 12 09:52 2017 COUNT 28 SHOULD BE 27 ADJUST? yes LINK COUNT DIR I=760352 OWNER=0 MODE=40755 SIZE=512 MTIME=Feb 6 18:27 2010 COUNT 13 SHOULD BE 12 ADJUST? yes UNREF FILE I=829444 OWNER=0 MODE=100555 SIZE=2687 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829445 OWNER=0 MODE=100555 SIZE=620 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829446 OWNER=0 MODE=100755 SIZE=192527 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829447 OWNER=0 MODE=100755 SIZE=188415 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829448 OWNER=0 MODE=100755 SIZE=156116 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829449 OWNER=0 MODE=100755 SIZE=152010 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829450 OWNER=0 MODE=100755 SIZE=178169 MTIME=Apr 4 21:03 2015 RECONNECT? yes UNREF FILE I=829470 OWNER=0 MODE=100755 SIZE=39101 MTIME=May 22 05:58 2017 RECONNECT? yes UNREF FILE I=832309 OWNER=0 MODE=100755 SIZE=4186 MTIME=Apr 6 02:42 2015 RECONNECT? yes UNREF FILE I=832438 OWNER=0 MODE=100755 SIZE=11932 MTIME=Apr 6 00:17 2015 RECONNECT? yes UNREF FILE I=832439 OWNER=0 MODE=100755 SIZE=12336 MTIME=Apr 6 00:17 2015 RECONNECT? yes UNREF FILE I=832440 OWNER=0 MODE=100755 SIZE=10472 MTIME=Apr 6 00:17 2015 RECONNECT? yes UNREF FILE I=832538 OWNER=0 MODE=100755 SIZE=3410 MTIME=Apr 12 20:53 2015 RECONNECT? yes UNREF FILE I=832539 OWNER=0 MODE=100755 SIZE=6179 MTIME=Apr 13 02:55 2015 RECONNECT? yes UNREF FILE I=832540 OWNER=0 MODE=120755 SIZE=25 MTIME=Apr 13 02:55 2015 RECONNECT? yes UNREF FILE I=832541 OWNER=0 MODE=100644 SIZE=1053 MTIME=Apr 12 20:53 2015 RECONNECT? yes UNREF FILE I=832542 OWNER=0 MODE=100755 SIZE=9015 MTIME=Apr 13 02:55 2015 RECONNECT? yes UNREF FILE I=832543 OWNER=0 MODE=100755 SIZE=32906 MTIME=Apr 13 02:55 2015 RECONNECT? yes UNREF FILE I=832544 OWNER=0 MODE=100755 SIZE=568512 MTIME=Apr 13 02:55 2015 RECONNECT? yes UNREF FILE I=832545 OWNER=0 MODE=100755 SIZE=17130 MTIME=Apr 13 02:55 2015 RECONNECT? yes UNREF FILE I=832999 OWNER=0 MODE=100755 SIZE=36212 MTIME=Apr 19 00:39 2015 RECONNECT? yes UNREF FILE I=833001 OWNER=0 MODE=102755 SIZE=125912 MTIME=Apr 19 01:37 2015 RECONNECT? yes UNREF FILE I=833057 OWNER=0 MODE=100755 SIZE=73975 MTIME=Jul 24 15:09 2015 RECONNECT? yes UNREF FILE I=833121 OWNER=0 MODE=100755 SIZE=19604 MTIME=Apr 10 13:24 2015 RECONNECT? yes UNREF FILE I=833122 OWNER=0 MODE=100755 SIZE=6116 MTIME=Apr 10 13:24 2015 RECONNECT? yes UNREF FILE I=833123 OWNER=0 MODE=100755 SIZE=4400 MTIME=Apr 10 13:24 2015 RECONNECT? yes UNREF FILE I=833124 OWNER=0 MODE=100755 SIZE=4352 MTIME=Apr 10 13:24 2015 RECONNECT? yes UNREF FILE I=833646 OWNER=0 MODE=100755 SIZE=105460 MTIME=Apr 10 17:07 2015 RECONNECT? yes UNREF FILE I=834002 OWNER=0 MODE=100755 SIZE=7790 MTIME=Apr 8 15:10 2015 RECONNECT? yes UNREF FILE I=834003 OWNER=0 MODE=100755 SIZE=7911 MTIME=Apr 8 15:10 2015 RECONNECT? yes UNREF FILE I=834004 OWNER=0 MODE=100755 SIZE=50149 MTIME=Apr 8 15:10 2015 RECONNECT? yes UNREF FILE I=834005 OWNER=0 MODE=100755 SIZE=18117 MTIME=Apr 8 15:10 2015 RECONNECT? yes UNREF FILE I=834006 OWNER=0 MODE=100755 SIZE=18118 MTIME=Apr 8 15:10 2015 RECONNECT? yes UNREF FILE I=834217 OWNER=0 MODE=100755 SIZE=6627 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=834219 OWNER=0 MODE=120755 SIZE=69 MTIME=Jan 16 15:20 2017 RECONNECT? yes UNREF FILE I=834220 OWNER=0 MODE=100755 SIZE=90322 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=834221 OWNER=0 MODE=100755 SIZE=1113452 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=834227 OWNER=0 MODE=120755 SIZE=10 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=834229 OWNER=0 MODE=120755 SIZE=10 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=835243 OWNER=0 MODE=100755 SIZE=450274 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=835244 OWNER=0 MODE=100755 SIZE=13894 MTIME=Jan 16 15:20 2017 RECONNECT? yes UNREF FILE I=835406 OWNER=0 MODE=100755 SIZE=48797582 MTIME=Dec 28 03:07 2016 RECONNECT? yes UNREF FILE I=835407 OWNER=0 MODE=100755 SIZE=25345 MTIME=Jan 16 15:19 2017 RECONNECT? yes UNREF FILE I=835408 OWNER=0 MODE=100755 SIZE=51794 MTIME=Jan 16 15:20 2017 RECONNECT? yes LINK COUNT DIR I=837583 OWNER=0 MODE=40755 SIZE=512 MTIME=Aug 11 14:18 2015 COUNT 14 SHOULD BE 13 ADJUST? yes UNREF FILE I=840550 OWNER=0 MODE=100444 SIZE=21991 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840554 OWNER=0 MODE=100444 SIZE=75363 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840555 OWNER=0 MODE=100444 SIZE=21529 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840556 OWNER=0 MODE=100444 SIZE=72834 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840558 OWNER=0 MODE=100444 SIZE=21960 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840560 OWNER=0 MODE=100444 SIZE=74892 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840873 OWNER=0 MODE=100444 SIZE=22144 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=840924 OWNER=0 MODE=100444 SIZE=72354 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841538 OWNER=0 MODE=100444 SIZE=15395 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841544 OWNER=0 MODE=100444 SIZE=40766 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841554 OWNER=0 MODE=100444 SIZE=15407 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841556 OWNER=0 MODE=100444 SIZE=39511 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841557 OWNER=0 MODE=100444 SIZE=15397 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841558 OWNER=0 MODE=100444 SIZE=40008 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841559 OWNER=0 MODE=100444 SIZE=15414 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841560 OWNER=0 MODE=100444 SIZE=39871 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841561 OWNER=0 MODE=100444 SIZE=21626 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841562 OWNER=0 MODE=100444 SIZE=33799 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841563 OWNER=0 MODE=100444 SIZE=22099 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841564 OWNER=0 MODE=100444 SIZE=35229 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841565 OWNER=0 MODE=100444 SIZE=19764 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841566 OWNER=0 MODE=100444 SIZE=34869 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841567 OWNER=0 MODE=100444 SIZE=19927 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841568 OWNER=0 MODE=100444 SIZE=35118 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841569 OWNER=0 MODE=100444 SIZE=29887 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841570 OWNER=0 MODE=100444 SIZE=126064 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841571 OWNER=0 MODE=100444 SIZE=29815 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841572 OWNER=0 MODE=100444 SIZE=126868 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841573 OWNER=0 MODE=100444 SIZE=29979 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841574 OWNER=0 MODE=100444 SIZE=125201 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841575 OWNER=0 MODE=100444 SIZE=30032 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841576 OWNER=0 MODE=100444 SIZE=122124 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841577 OWNER=0 MODE=100444 SIZE=54914 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841578 OWNER=0 MODE=100444 SIZE=14987 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841579 OWNER=0 MODE=100444 SIZE=77488 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841580 OWNER=0 MODE=100444 SIZE=14971 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841581 OWNER=0 MODE=100444 SIZE=78101 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841582 OWNER=0 MODE=100444 SIZE=15096 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841583 OWNER=0 MODE=100444 SIZE=77941 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841584 OWNER=0 MODE=100444 SIZE=15047 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841585 OWNER=0 MODE=100444 SIZE=78500 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841586 OWNER=0 MODE=100444 SIZE=31048 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841587 OWNER=0 MODE=100444 SIZE=70121 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841588 OWNER=0 MODE=100444 SIZE=31403 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841589 OWNER=0 MODE=100444 SIZE=72496 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841590 OWNER=0 MODE=100444 SIZE=31418 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841591 OWNER=0 MODE=100444 SIZE=72332 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841592 OWNER=0 MODE=100444 SIZE=31443 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841593 OWNER=0 MODE=100444 SIZE=71902 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841594 OWNER=0 MODE=100444 SIZE=31441 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841595 OWNER=0 MODE=100444 SIZE=93860 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841596 OWNER=0 MODE=100444 SIZE=31422 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841597 OWNER=0 MODE=100444 SIZE=92799 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841598 OWNER=0 MODE=100444 SIZE=31696 MTIME=Feb 28 17:53 2003 RECONNECT? yes NO SPACE LEFT IN /lost+found EXPAND? yes UNREF FILE I=841599 OWNER=0 MODE=100444 SIZE=102798 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841600 OWNER=0 MODE=100444 SIZE=31672 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841601 OWNER=0 MODE=100444 SIZE=94877 MTIME=Feb 28 17:53 2003 RECONNECT? yes UNREF FILE I=841602 OWNER=0 MODE=100444 SIZE=6867 MTIME=Jul 7 08:52 2008 RECONNECT? yes UNREF FILE I=841603 OWNER=0 MODE=100444 SIZE=6867 MTIME=Jul 7 08:52 2008 RECONNECT? yes UNREF FILE I=841604 OWNER=0 MODE=100444 SIZE=2090 MTIME=Jul 7 08:51 2008 RECONNECT? yes UNREF FILE I=841605 OWNER=0 MODE=100444 SIZE=14330 MTIME=Jul 7 08:52 2008 RECONNECT? yes ** Phase 5 - Check Cyl groups FREE BLK COUNT(S) WRONG IN SUPERBLK SALVAGE? yes SUMMARY INFORMATION BAD SALVAGE? yes BLK(S) MISSING IN BIT MAPS SALVAGE? yes 250092 files, 3336939 used, 1566620 free (128300 frags, 179790 blocks, 2.6% fragmentation) ***** FILE SYSTEM WAS MODIFIED ***** -- Emmanuel Dreyfus m...@netbsd.org
