panic: __lockmgr_args: unknown lockmgr request 0x0

[Attilio Rao]

2008/7/17, Lothar Braun <lothar at lobraun.de>:
> Hi,
>
>  I'm getting a kernel panic, whenever I try to work with an XFS file system
> with todays sources.
>
>  I created the filesystem, mounted it and created a directory on it. The
> crash occurred when I tried to chown the directory.
>
>  GNU gdb 6.1.1 [FreeBSD]
>  Copyright 2004 Free Software Foundation, Inc.
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> are
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>  There is absolutely no warranty for GDB.  Type "show warranty" for details.
>  This GDB was configured as "i386-marcel-freebsd"...
>
>  Unread portion of the kernel message buffer:
>  panic: __lockmgr_args: unknown lockmgr request 0x0
>
>  cpuid = 1
>  Uptime: 25m36s
>  Physical memory: 3314 MB
>  Dumping 95 MB: 80 (CTRL-C to abort)  64 48 32 16
>
>  Reading symbols from /boot/kernel/acpi.ko...Reading symbols from
> /boot/kernel/acpi.ko.symbols...done.
>  done.
>  Loaded symbols for /boot/kernel/acpi.ko
>  Reading symbols from /boot/kernel/xfs.ko...Reading symbols from
> /boot/kernel/xfs.ko.symbols...done.
>  done.
>  Loaded symbols for /boot/kernel/xfs.ko
>  #0  doadump () at pcpu.h:196
>  196             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
>  (kgdb) bt
>  #0  doadump () at pcpu.h:196
>  #1  0xc078f1cc in boot (howto=260) at
> /usr/src/sys/kern/kern_shutdown.c:418
>  #2  0xc078f489 in panic (fmt=Variable "fmt" is not available.
>  ) at /usr/src/sys/kern/kern_shutdown.c:572
>  #3  0xc077b83c in __lockmgr_args (lk=0xc6eecce8, flags=256, ilk=0xc6eecd04,
>     wmesg=0x0, pri=0, timo=0, file=0xc0b2b883
> "/usr/src/sys/kern/vfs_subr.c",
>     line=2044) at /usr/src/sys/kern/kern_lock.c:848
>  #4  0xc0801cf2 in vop_stdlock (ap=0xe8fa7810) at lockmgr.h:93
>  #5  0xc0aac906 in VOP_LOCK1_APV (vop=0xc0bf5400, a=0xe8fa7810)
>     at vnode_if.c:1618
>  #6  0xc081e64d in _vn_lock (vp=0xc6eecc90, flags=256,
>     file=0xc0b2b883 "/usr/src/sys/kern/vfs_subr.c",
> line=2044)
>     at vnode_if.h:845
>  #7  0xc080ea29 in vget (vp=0xc6eecc90, flags=0, td=0xc6a50460)
>     at /usr/src/sys/kern/vfs_subr.c:2044
>  #8  0xc6e2f6a6 in vn_get (xfs_vp=0xc692d780, vmap=0xe8fa78c0)
>     at
> /usr/src/sys/modules/xfs/../../gnu/fs/xfs/FreeBSD/xfs_vnode.c:107
>  #9  0xc6df4cb2 in xfs_iget (mp=0xc6776800, tp=0x0, ino=Unhandled dwarf
> expression opcode 0x93
>  )
>     at
> /usr/src/sys/modules/xfs/../../gnu/fs/xfs/FreeBSD/xfs_freebsd_iget.c:164
>  #10 0xc6e160fc in xfs_dir_lookup_int (dir_bdp=0xc6ee9020, lock_mode=8,
>     dentry=0xe8fa7bb0, inum=0xe8fa7938, ipp=0xe8fa7940)
>     at
> /usr/src/sys/modules/xfs/../../gnu/fs/xfs/xfs_utils.c:97
>  #11 0xc6e1a75e in xfs_lookup (dir_bdp=0xc6ee9020, dentry=0xe8fa7bb0,
>     vpp=0xe8fa79a8, flags=0, rdir=0x0, credp=0xc698e500)
>     at
> /usr/src/sys/modules/xfs/../../gnu/fs/xfs/xfs_vnodeops.c:1828
>  #12 0xc6e2a973 in _xfs_cachedlookup (ap=0xe8fa79e0)
>     at
> /usr/src/sys/modules/xfs/../../gnu/fs/xfs/FreeBSD/xfs_vnops.c:1275
>  #13 0xc0aab322 in VOP_CACHEDLOOKUP_APV (vop=0xc6e367e0, a=0xe8fa79e0)
>     at vnode_if.c:153
>  #14 0xc07ff8c0 in vfs_cache_lookup (ap=0xe8fa7a64) at vnode_if.h:80
>  #15 0xc0aacfe6 in VOP_LOOKUP_APV (vop=0xc6e367e0, a=0xe8fa7a64)
>     at vnode_if.c:99
>  #16 0xc0806371 in lookup (ndp=0xe8fa7b84) at vnode_if.h:54
>  #17 0xc08071bb in namei (ndp=0xe8fa7b84) at
> /usr/src/sys/kern/vfs_lookup.c:239
>  #18 0xc0814a64 in kern_statat (td=0xc6a50460, flag=0, fd=-100,
>     path=0x8104928 <Address 0x8104928 out of bounds>, pathseg=UIO_USERSPACE,
>     sbp=0xe8fa7c18) at
> /usr/src/sys/kern/vfs_syscalls.c:2331
>  #19 0xc0814cf6 in kern_stat (td=0xc6a50460,
>     path=0x8104928 <Address 0x8104928 out of bounds>, pathseg=UIO_USERSPACE,
>     sbp=0xe8fa7c18) at
> /usr/src/sys/kern/vfs_syscalls.c:2313
>  #20 0xc0814d9f in stat (td=0xc6a50460, uap=0xe8fa7cf8)
>     at /usr/src/sys/kern/vfs_syscalls.c:2282
>  #21 0xc0aa1075 in syscall (frame=0xe8fa7d38)
>     at /usr/src/sys/i386/i386/trap.c:1081
>  #22 0xc0a86a90 in Xint0x80_syscall ()
>     at /usr/src/sys/i386/i386/exception.s:261
>  #23 0x00000033 in ?? ()
>  Previous frame inner to this frame (corrupt stack?)

Hello,
can you try the following patch:
http://www.freebsd.org/~attilio/xfs.diff

Thanks,
Attilio