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mount failed after xfs_growfs beyond 16 TB

To: xfs@xxxxxxxxxxx
Subject: mount failed after xfs_growfs beyond 16 TB
From: Christian Guggenberger <christian.guggenberger@xxxxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 2 Nov 2006 18:26:08 +0100
Reply-to: christian.guggenberger@xxxxxxxxxxxxxxxxxxxxxxxx
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Mutt/1.5.9i
Hi,

a colleague recently tried to grow a 16 TB filesystem (x86, 32bit) on
top of lvm2 to 17TB. (I am not even sure if that's supposed work with
linux-2.6, 32bit)

used kernel seems to be debian sarge's 2.6.8

xfs_growfs seemed to succeed (AFAIK..)

however, the fs shut down:

XFS internal error
XFS_WANT_CORRUPTED_GOTO at line 1583 of file fs/xfs/xfs_alloc.c.  Caller
0xf89978a8
[__crc_pm_idle+550816/2056674] xfs_free_ag_extent+0x454/0x78a [xfs]
[__crc_pm_idle+555561/2056674] xfs_free_extent+0xea/0x10f [xfs]
[__crc_pm_idle+555561/2056674] xfs_free_extent+0xea/0x10f [xfs]
[__crc_pm_idle+553757/2056674] xfs_alloc_read_agf+0xbe/0x1e4 [xfs]
[__crc_pm_idle+764480/2056674] xfs_growfs_data_private+0xd80/0xec0 [xfs]
[pty_write+305/307] pty_write+0x131/0x133
[opost+154/428] opost+0x9a/0x1ac
[__crc_pm_idle+765024/2056674] xfs_growfs_data+0x3f/0x5e [xfs]
[__crc_pm_idle+972873/2056674] xfs_ioctl+0x256/0x860 [xfs]
[tty_write+436/788] tty_write+0x1b4/0x314
[write_chan+0/538] write_chan+0x0/0x21a
[__crc_pm_idle+968754/2056674] linvfs_ioctl+0x78/0x101 [xfs]
[sys_ioctl+315/675] sys_ioctl+0x13b/0x2a3
[syscall_call+7/11] syscall_call+0x7/0xb
xfs_force_shutdown(dm-1,0x8) called
from line 1088 of file fs/xfs/xfs_trans.c.  Return address = 0xf8a01c3c
Filesystem "dm-1": Corruption of
in-memory data detected.  Shutting down filesystem: dm-1
Please umount the filesystem, and
rectify the problem(s)
xfs_force_shutdown(dm-1,0x1) called
from line 353 of file fs/xfs/xfs_rw.c.  Return address = 0xf8a01c3c

mounting fails with:

XFS: SB sanity check 2 failed
Filesystem "dm-1": XFS internal error
xfs_mount_validate_sb(4) at line 277 of file fs/xfs/xfs_mount.c.  Caller
0xf89e568c
[__crc_pm_idle+872883/2056674] xfs_mount_validate_sb+0x21d/0x39a [xfs]
[__crc_pm_idle+874509/2056674] xfs_readsb+0xee/0x1f9 [xfs]
[__crc_pm_idle+874509/2056674] xfs_readsb+0xee/0x1f9 [xfs]
[__crc_pm_idle+908971/2056674] xfs_mount+0x282/0x5d4 [xfs]
[__crc_pm_idle+989973/2056674] vfs_mount+0x34/0x38 [xfs]
[__crc_pm_idle+989973/2056674] vfs_mount+0x34/0x38 [xfs]
[__crc_pm_idle+989534/2056674] linvfs_fill_super+0xa1/0x1ee [xfs]
[snprintf+39/43] snprintf+0x27/0x2b
[disk_name+169/171] disk_name+0xa9/0xab
[sb_set_blocksize+46/93] sb_set_blocksize+0x2e/0x5d
[get_sb_bdev+262/313] get_sb_bdev+0x106/0x139
[__crc_pm_idle+989914/2056674] linvfs_get_sb+0x2f/0x36 [xfs]
[__crc_pm_idle+989373/2056674] linvfs_fill_super+0x0/0x1ee [xfs]
[do_kern_mount+162/354] do_kern_mount+0xa2/0x162
[do_new_mount+115/181] do_new_mount+0x73/0xb5
[do_mount+370/446] do_mount+0x172/0x1be
[copy_mount_options+99/188] copy_mount_options+0x63/0xbc
[sys_mount+212/344] sys_mount+0xd4/0x158
[syscall_call+7/11] syscall_call+0x7/0xb
XFS: SB validate failed
XFS: SB sanity check 2 failed

and finally, xfs_repair stops at

bad primary superblock: inconsistent file geometrie information

found candidate secondary superblock...
superblock read failed, offset 10093861404672, size 2048, ag 0, rval 29

thanks in advance,

 - Christian



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