On Sun, May 20, 2001 at 12:59:51PM -0400, Mike Heffner wrote:
> The machine is up for about one minute and then I ran `startx' and the
> screen turned black and it appeared to lockup, after about 30 seconds
> plus some banging on the keyboard it rebooted. I have 256mb ram, so it
> shouldn't be swapping at this point. The kernel and world are cvsupd
> to about 12am May 20 EDT, the following is the panic message:

I'm getting a panic whenever I start X too (with a kernel from
earlier today). I managed to get a DDB trace from a serial console.

        David.

panic: mutex vm not owned at ../../vm/vm_object.c:330
Debugger("panic")
Stopped at      Debugger+0x44:  pushl   %ebx
db> t
Debugger(c02fdbbb) at Debugger+0x44
panic(c02fcc07,c0313f10,c0315234,14a,c038fe40) at panic+0x70
_mtx_assert(c03bfb80,1,c0315234,14a) at _mtx_assert+0x49
vm_object_deallocate(c038fe40,c0de4030,c863d300,c8692f38,c01e59f3) at vm_object_
deallocate+0x1e
shm_deallocate_segment(c0de4030,c8692f80,c863d300,4,c863d300) at shm_deallocate_
segment+0x12
shmctl(c863d300,c8692f84,c863d300,0,c8692fa0) at shmctl+0x117
shmsys(c863d300,c8692f80,2838d9f4,1,bfbffc80) at shmsys+0x43
syscall(2f,2f,2f,bfbffc80,1) at syscall+0x7f9
syscall_with_err_pushed() at syscall_with_err_pushed+0x1b

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