vm-related panic with 5.1RC1

[Julian Elischer]

On Sun, 1 Jun 2003, Martin Blapp wrote:

> 
> Hi all,
> 
> I just got this panic during compile of openoffice
> 
> Fatal trap 12 while in kernel mode
> fault virtual address = 0x68
> fault code            = supervisor read, page not present
> instruction pointer   = 0x8:0xc0271f4d
> stack pointer         = 0x10:0xe6e51ab0
> frame pointer         = 0x10:0xe6e51ae0
> code segement         = base 0x0, limit 0xfffff, type 0x1b
>                       = DPL 0, pres 1, def32, gran 1
> processor flags       = interrupt enabled, resume, IOPL =1
> current process       = 22362
> kernel: type 12 trap, code=0
> Stopped at _mtx_lock_sleep+0x16d: movl 0x68(%ecx),%edx
> db> trace
> _mtx_lock_sleep(c082f0b0,0,0,0,c0678415) at _mtx_lock_sleep+0x16d
> vm_map_delete(c082f000, d0d0d000, d0d11000, e6effda0, c78d5720) at vm_map_delete+0x383)
> vm_map_remove(c082f000, d0d0d000, d0d11000, e6e51b9c, c03b247f) at vm_map_remove+0x58)
> kmem_free(c082f000, d0d0d000, 3000, 0, 80) at kmem_free+0x32
> cpu_thread_clean(c78d54c0, e6e51bb4,c78d54c0, c78d54c0, e6e51be4) at
> cpu_thread_clean+0x7f
> thread_free(c78d54c0, e6e51bd0, c0275839, c67a3000, c6abf030) at thread_free+0x14
> thread_reap(c78d55f0) at thread_reap+0x16c
> thread_wait(c656b000, ffffffff, 0, c03feb34,0) at thread_wait+0x55
> wait1(c6569980, e6e51d10,  0, e6e51d40, c03b0dfa) at wait1+0x738
> wait5(c6569980, e6e51d10, 10, c6569980, 4) at wait4+0x20
> syscall(2f, 2f, 2f, bfbff074, 325) at syscall+0x2aa
> Xint0x80_syscall() at Xint0x80_syscall()+0x1d
> --- syscall (7, FreeBSD ELF32, wait4) eip = 0x807b28b, esp = 0xbfbfefbc,
> ebp = 0xbfbfefd8)
> 
> Unfortunatly my partition was too small, so I could not get a dump. I've
> adjusted this now and the next time it panics I'll have one ready.

This is with KSE right?

I've seen this.. but never when I'm ready for it..
The 0xd0d11000  is always there.. it seems to be a symptom of the
problem. It' probably an important clue..
I think it indicates a garbage pointer fo some type.


> 

> Martin
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