DragonFly kernel List (threaded) for 2007-08
DragonFly BSD
DragonFly kernel List (threaded) for 2007-08
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Reproducible panic while playing with modules

From: Hasso Tepper <hasso@xxxxxxxxx>
Date: Fri, 17 Aug 2007 11:45:00 +0300

As chlamydia is still down, I'll post it here.

USB serial converter (tried umct(4) and uplcom(4)) connected and working.
Unload both modules (hw specific and ucom(4) as well) and load hw specific
module again -> panic.

panic: vm_fault: unrecoverable fault at 0xdeadc000 in entry 0xc06d12a0
Trace beginning at frame 0xe7b819ec
panic(c05a761e,c06b4f80,c05e8fdc,e7b81a1c,1) at panic+0x99
panic(c05e8fdc,deadc000,c06d12a0,e7b81a5c,e7b81a50) at panic+0x99
vm_fault(c06cdc40,deadc000,1,0,cff91f00) at vm_fault+0x11e
trap_pfault(e7b81b00,0,deadc0e2,e7b81af0,deadc0e2) at trap_pfault+0xf1
trap(e7b81b00) at trap+0x429
calltrap() at calltrap+0xd
--- trap 0, eip = 0, esp = 0x10286, ebp = 0xc2641590 ---
(null)(c2641394,0,c061d050,0,c26411c4) at 0
_end(90,0,2,cc4e5ac8,1) at 0xc2641660
atausb_methods(73756174,68755f62,43006275,43004942,77204942) at atausb_methods
Stopped at      Debugger+0x44:  movb    $0,in_Debugger.0

Any ideas?

Creating core isn't successful and I haven't played much to see if there
is easier sequence to repeat it - it takes too much time to reboot after


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