Something

XFS internal error XFS_WANT_CORRUPTED_GOTO at line 1590 of file fs/xfs/xfs_alloc.c.  Caller 0x801e5acf
 [<801e4a34>] xfs_free_ag_extent+0x404/0x6c0
 [<801e5acf>] xfs_free_extent+0xaf/0xe0
 [<801e5acf>] xfs_free_extent+0xaf/0xe0
 [<802410fd>] kmem_zone_alloc+0x3d/0xb0
 [<80241196>] kmem_zone_zalloc+0x26/0x50
 [<801f728d>] xfs_bmap_finish+0xfd/0x180
 [<8021e583>] xfs_itruncate_finish+0x283/0x3a0
 [<80235b3b>] xfs_trans_ijoin+0x2b/0x90
 [<8023bf83>] xfs_inactive+0x403/0x4e0
 [<8024aa38>] linvfs_clear_inode+0x58/0x80
 [<80169599>] invalidate_inode_buffers+0x9/0x60
 [<80182764>] clear_inode+0xc4/0xd0
 [<8018377a>] generic_delete_inode+0xda/0x100
 [<80183993>] iput+0x53/0x70
 [<80180397>] dput+0x67/0x250
 [<80178b96>] sys_rename+0x1c6/0x1e0
 [<8010745a>] do_gettimeofday+0x1a/0xb0
 [<80102c2b>] sysenter_past_esp+0x54/0x75
xfs_force_shutdown(hdg1,0x8) called from line 4125 of file fs/xfs/xfs_bmap.c.  Return address = 0x8024b741
Filesystem "hdg1": Corruption of in-memory data detected.  Shutting down filesystem: hdg1
Please umount the filesystem, and rectify the problem(s)

$ uname -a
Linux quasimodo 2.6.15-vs2.1.0.4-gentoo #2 PREEMPT Thu Jan 12 18:24:28 CET 2006 i686 AMD Athlon(tm) XP 2400+ AuthenticAMD GNU/Linux