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Date:      Tue, 25 Mar 2008 14:44:58 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        freebsd-stable@freebsd.org
Subject:   RELENG_7 panic
Message-ID:  <200803251844.m2PIisxZ021929@lava.sentex.ca>

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I have a RELENG_7 box running in a netboot environment that is 
crashing every few days.  I dont have a disk on it yet, so I have no 
where to send the coredump.  But I hooked up a serial cable and made 
it drop to debugger.  We are going to try a USB connected disk and 
configure it as swap so that we can then try and drop the coredump to 
it.  Any other suggestions on how to track this down ?


db> where
Tracing pid 24 tid 100023 td 0xc4cc4cc0
kdb_enter(c08587d4,e5301000,1,e5273a9c,e5273a8c,...) at kdb_enter+0x33
vm_fault(c1071000,e5301000,1,0,14990740,...) at vm_fault+0x178
trap_pfault(0,0,c1072d80,c1072d38,c4d50558,...) at trap_pfault+0x20e
trap(e5273bdc) at trap+0x3fa
calltrap() at calltrap+0x6
--- trap 0xc, eip = 0xc07f5cb6, esp = 0xe5273c1c, ebp = 0xe5273c54 ---
generic_bcopy(e5300836,7ac5,0,c4dacc00,0,...) at generic_bcopy+0x1a
rl_rxeof(c05c3466,c4cc4cc0,0,1,1273cbc,...) at rl_rxeof+0x139
rl_intr(c4d27000,0,c0841c05,46b,0,...) at rl_intr+0xba
ithread_loop(c4d809d0,e5273d38,0,0,0,...) at ithread_loop+0x1ab
fork_exit(c059da60,c4d809d0,e5273d38) at fork_exit+0x99
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xe5273d70, ebp = 0 ---
db> panic
panic: from debugger
cpuid = 1
KDB: stack backtrace:
db_trace_self_wrapper(c0845ff1,e52736cc,c05c3367,c4d97340,e52736c8,...) 
at db_trace_self_wrapper+0x26
kdb_backtrace(c4d97340,e52736c8,c05e1a92,c0830310,c4d97374,...) at 
kdb_backtrace+0x29
mi_switch(1,0,1,104,0,...) at mi_switch+0x47
sched_bind(c4cc4cc0,0,c0843f3c,10e,e527370c,...) at sched_bind+0x60
boot(c0844067,1,0,0,1,...) at boot+0x47
panic(c0829200,e5273810,c0467c95,c05e3cc3,0,...) at panic+0x13b
db_panic(c05e3cc3,0,ffffffff,e527377c,c0469c00,...) at db_panic+0x17
db_command_loop(c05e3cc3,0,86,1,0,...) at db_command_loop+0x2f5
db_trap(a,0,1,a,e5273924,...) at db_trap+0xc5
kdb_trap(a,0,e5273924,0,c4d50558,...) at kdb_trap+0x96
trap(e5273924) at trap+0x57b
calltrap() at calltrap+0x6
--- trap 0xa, eip = 0xc05e3cc3, esp = 0xe5273964, ebp = 0xe527398c ---
kdb_enter(c08587d4,e5301000,1,e5273a9c,e5273a8c,...) at kdb_enter+0x33
vm_fault(c1071000,e5301000,1,0,14990740,...) at vm_fault+0x178
trap_pfault(0,0,c1072d80,c1072d38,c4d50558,...) at trap_pfault+0x20e
trap(e5273bdc) at trap+0x3fa
calltrap() at calltrap+0x6
--- trap 0xc, eip = 0xc07f5cb6, esp = 0xe5273c1c, ebp = 0xe5273c54 ---
generic_bcopy(e5300836,7ac5,0,c4dacc00,0,...) at generic_bcopy+0x1a
rl_rxeof(c05c3466,c4cc4cc0,0,1,1273cbc,...) at rl_rxeof+0x139
rl_intr(c4d27000,0,c0841c05,46b,0,...) at rl_intr+0xba
ithread_loop(c4d809d0,e5273d38,0,0,0,...) at ithread_loop+0x1ab
fork_exit(c059da60,c4d809d0,e5273d38) at fork_exit+0x99
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xe5273d70, ebp = 0 ---
db>

--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike@sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike




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