ffs_blkfree panic + lockmgr panic

Simon 'corecode' Schubert corecode at fs.ei.tum.de
Sat Jul 8 19:22:01 PDT 2006


hey,

this is the Nth time now i'm running into free frag or free block panics.  either vinum is doing something very wrong or it is just interacting with ffs on a bad way.  anyways, here it comes:

Unread portion of the kernel message buffer:
dev = #ad/0x20003, block = 12332, fs = /var
panic: ffs_blkfree: freeing free frag
syncing disks... Warning: vfsync_bp skipping dirty buffer 0xc244b200
13 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 Warning: vfsync_bp skipping dirty buffer 0xc244b200
1 panic: lockmgr: locking against myself
#2  0xc0178de5 in panic (fmt=0xc02cb0e8 "lockmgr: locking against myself")
   at /usr/build/src/sys/kern/kern_shutdown.c:684
#3  0xc016ef15 in lockmgr (lkp=0xc244b318, flags=33554466)
   at /usr/build/src/sys/kern/kern_lock.c:353
#4  0xc01b1b29 in getblk (vp=0xce304600, loffset=Unhandled dwarf expression opcode 0x93
) at buf2.h:92
#5  0xc01af720 in bread (vp=0xce304600, loffset=Unhandled dwarf expression opcode 0x93
) at /usr/build/src/sys/kern/vfs_bio.c:617
#6  0xc022540c in ffs_freefile (pvp=0x0, ino=21339, mode=33188)
   at /usr/build/src/sys/vfs/ufs/ffs_alloc.c:1686
#7  0xc022ba7f in handle_workitem_freefile (freefile=0xc21e29c0)
   at /usr/build/src/sys/vfs/ufs/ffs_softdep.c:3039
#8  0xc0228454 in process_worklist_item (matchmnt=0x0, flags=0)
   at /usr/build/src/sys/vfs/ufs/ffs_softdep.c:741
#9  0xc022821b in softdep_process_worklist (matchmnt=0x0)
   at /usr/build/src/sys/vfs/ufs/ffs_softdep.c:626
#10 0xc017869e in boot (howto=256) at /usr/build/src/sys/kern/kern_shutdown.c:295
#11 0xc0178de5 in panic (fmt=0xc02d5fe8 "ffs_blkfree: freeing free frag")
   at /usr/build/src/sys/kern/kern_shutdown.c:684
#12 0xc0224ea6 in ffs_blkfree (ip=0xd2557c00, bno=12328, size=4)
   at /usr/build/src/sys/vfs/ufs/ffs_alloc.c:1572
#13 0xc022a87f in handle_workitem_freeblocks (freeblks=0xc2327308)
   at /usr/build/src/sys/vfs/ufs/ffs_softdep.c:2268
#14 0xc0228422 in process_worklist_item (matchmnt=0x0, flags=0)
   at /usr/build/src/sys/vfs/ufs/ffs_softdep.c:727
#15 0xc022821b in softdep_process_worklist (matchmnt=0x0)
   at /usr/build/src/sys/vfs/ufs/ffs_softdep.c:626
#16 0xc01c441c in sched_sync () at /usr/build/src/sys/kern/vfs_sync.c:244
#17 0xc016dd55 in kthread_create_stk (func=0, arg=0x0, tdp=0xce2ec500, stksize=0, fmt=0x0)
   at /usr/build/src/sys/kern/kern_kthread.c:102
for some reason it is *always* /dev

cheers
 simon
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