freebsd crash under I/O - got error messages part 3

[Wojciech Puchar]

after disabling UFS_DIRHASH in kernel config the following disappers

but error generated by virtualbox is still active.

On Sun, 7 Dec 2014, Wojciech Puchar wrote:

> after rebooting, without even loading vboxdrv.ko, quickly after running 
> svnlite checkout
>
> Dec  7 21:23:21 laptop kernel: lock order reversal:
> Dec  7 21:23:21 laptop kernel: 1st 0xfffffe0060f7fdd8 bufwait (bufwait) @ 
> kern/vfs_bio.c:3061
> Dec  7 21:23:21 laptop kernel: 2nd 0xfffff8001a555600 dirhash (dirhash) @ 
> ufs/ufs/ufs_dirhash.c:284
> Dec  7 21:23:21 laptop kernel: KDB: stack backtrace:
> Dec  7 21:23:21 laptop kernel: db_trace_self_wrapper() at 
> db_trace_self_wrapper+0x2b/frame 0xfffffe0078702440
> Dec  7 21:23:21 laptop kernel: kdb_backtrace() at kdb_backtrace+0x39/frame 
> 0xfffffe00787024f0
> Dec  7 21:23:21 laptop kernel: witness_checkorder() at 
> witness_checkorder+0xdc2/frame 0xfffffe0078702580
> Dec  7 21:23:21 laptop kernel: _sx_xlock() at _sx_xlock+0x71/frame 
> 0xfffffe00787025c0
> Dec  7 21:23:21 laptop kernel: ufsdirhash_add() at ufsdirhash_add+0x3a/frame 
> 0xfffffe0078702600
> Dec  7 21:23:21 laptop kernel: ufs_direnter() at ufs_direnter+0x6b3/frame 
> 0xfffffe00787026c0
> Dec  7 21:23:21 laptop kernel: ufs_mkdir() at ufs_mkdir+0x4d0/frame 
> 0xfffffe0078702850
> Dec  7 21:23:21 laptop kernel: VOP_MKDIR_APV() at VOP_MKDIR_APV+0xd1/frame 
> 0xfffffe0078702880
> Dec  7 21:23:21 laptop kernel: kern_mkdirat() at kern_mkdirat+0x1be/frame 
> 0xfffffe0078702aa0
> Dec  7 21:23:21 laptop kernel: amd64_syscall() at amd64_syscall+0x216/frame 
> 0xfffffe0078702bb0
> Dec  7 21:23:21 laptop kernel: Xfast_syscall() at Xfast_syscall+0xfb/frame 
> 0xfffffe0078702bb0
> Dec  7 21:23:21 laptop kernel: --- syscall (136, FreeBSD ELF64, sys_mkdir), 
> rip = 0x801d4e93a, rsp = 0x7fffffffde68, rbp = 0x7fffffffde8
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