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[xfs-masters] [Bug 10421] New: Filesystem failing without any warning or

To: xfs-masters@xxxxxxxxxxx
Subject: [xfs-masters] [Bug 10421] New: Filesystem failing without any warning or etc
From: bugme-daemon@xxxxxxxxxxxxxxxxxxx
Date: Mon, 7 Apr 2008 23:11:24 -0700 (PDT)
Reply-to: xfs-masters@xxxxxxxxxxx
Sender: xfs-masters-bounce@xxxxxxxxxxx
http://bugzilla.kernel.org/show_bug.cgi?id=10421

           Summary: Filesystem failing without any warning or etc
           Product: File System
           Version: 2.5
     KernelVersion: 2.6.25-rc8-git1
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: XFS
        AssignedTo: xfs-masters@xxxxxxxxxxx
        ReportedBy: nuclearcat@xxxxxxxxxxxxxx


Latest working kernel version: 2.6.24.3
Earliest failing kernel version: 2.6.25-rc7-git3
Distribution: Custom
Hardware Environment: Sun Fire X4100
Software Environment: Customer distro with busybox tools, mount-2.12r
Problem Description:
Each night my proxy is crashing. 
I notice that it's cannot open some cache directory. Before it was /cache4, but
after i remove it from configuration of squid and even unmounted it, /cache3
start to fail. All hardware is in good condition, and i have similar problem on
another proxy server, but it's more rare (not each night).

After analysing situation here is result:
ls /cache3 is empty, while it must be one directory, squid.

SUPERPROXY /cache3 # echo "xxx" >x
-ash: cannot create x: Input/output error

/dev/sde1 on /cache3 type xfs (rw,noatime,nodiratime,logbufs=8,noquota)

SUPERPROXY /cache3 # xfs_info /cache3
xfs_info: /cache3 is not a mounted XFS filesystem

SUPERPROXY /cache3 # cat /proc/mounts
rootfs / rootfs rw 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
none /dev/pts devpts rw,mode=600 0 0
none /proc/bus/usb usbfs rw 0 0
/dev/mapper/root /mnt/flash ext3 rw,noatime,errors=continue,data=ordered 0 0
/dev/sdc2 /cache1 xfs rw,noatime,nodiratime,logbufs=8,noquota 0 0
/dev/sdd1 /cache2 xfs rw,noatime,nodiratime,logbufs=8,noquota 0 0
/dev/sde1 /cache3 xfs rw,noatime,nodiratime,logbufs=8,noquota 0 0

SUPERPROXY ~ # umount /cache3
on dmesg appeared:
[261943.707659] xfs_force_shutdown(sde1,0x1) called from line 420 of file
fs/xfs/xfs_rw.c.  Return address = 0xf8b79dd2

SUPERPROXY ~ # xfs_repair /dev/sde1
Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
        - scan filesystem freespace and inode maps...
        - found root inode chunk
Phase 3 - for each AG...
        - scan and clear agi unlinked lists...
        - process known inodes and perform inode discovery...
        - agno = 0
        - agno = 1
        - agno = 2
        - agno = 3
        - agno = 4
        - agno = 5
        - agno = 6
        - agno = 7
        - agno = 8
        - agno = 9
        - agno = 10
        - agno = 11
        - agno = 12
        - agno = 13
        - agno = 14
        - agno = 15
        - process newly discovered inodes...
Phase 4 - check for duplicate blocks...
        - setting up duplicate extent list...
        - check for inodes claiming duplicate blocks...
        - agno = 0
        - agno = 1
        - agno = 2
        - agno = 3
        - agno = 4
        - agno = 5
        - agno = 6
        - agno = 7
        - agno = 8
        - agno = 9
        - agno = 10
        - agno = 11
        - agno = 12
        - agno = 13
        - agno = 14
        - agno = 15
Phase 5 - rebuild AG headers and trees...
        - reset superblock...
Phase 6 - check inode connectivity...
        - resetting contents of realtime bitmap and summary inodes
        - traversing filesystem ...
        - traversal finished ...
        - moving disconnected inodes to lost+found ...
disconnected inode 471077370, moving to lost+found
Phase 7 - verify and correct link counts...
done

SUPERPROXY /cache3/lost+found # ls -la
drwxr-xr-x    2 root     root           38 Apr  3 08:49 .
drwxr-xr-x    4 squid    root           35 Apr  6  2007 ..
-rw-r-----    1 squid    squid           0 Apr  1 00:38 336079762
-rw-r-----    1 squid    squid           0 Mar 19 07:11 471077370

Steps to reproduce: Difficult, i didn't found any reason why it is crashing.


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