Date: 20 Jan 2001 02:20:01 +0100 From: Dag-Erling Smorgrav <des@ofug.org> To: current@freebsd.org Subject: ^T at the serial console causes a panic Message-ID: <xzpg0ifrpdq.fsf@flood.ping.uio.no>
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lopanic: mutex_enter(sio:1, MTX_SPIN) out of order @ ../../isa/sio.c:2585 already holding sched lock:2
cpuid = 0; lapic.id = 00000000
Debugger("panic")
d
CPU0 stopping CPUs: 0x00000002... stopped.
Stopped at Debugger+0x45: pushl %ebx
db> trace
Debugger(c0231e61) at Debugger+0x45
panic(c0230d20,c0252ed3,1,c0252fa3,a19) at panic+0xa5
witness_enter(c029ad60,1,c0252fa3,a19) at witness_enter+0xe5
comstart(c2924300,d4359df8,c0178f7d,c2924300,20) at comstart+0x86
ttstart(c2924300,20,c2924300,2,c2924300) at ttstart+0x18
tputchar(20,c2924300) at tputchar+0x45
putchar(20,d4359ec8) at putchar+0x4f
kvprintf(c0235e81,c016f5c0,d4359ec8,a,d4359ee4) at kvprintf+0x8e
ttyprintf(c2924300,c0235e80,d3f47b38,515,c0235e71) at ttyprintf+0x2b
ttyinfo(c2924300) at ttyinfo+0x157
ttyinput(14,c2924300) at ttyinput+0x591
sioinput(c108a000) at sioinput+0x2a4
siopoll(0) at siopoll+0x19b
sithd_loop(0) at sithd_loop+0xa0
fork_trampoline() at fork_trampoline+0x61
I can't get a dump on this box (it double-faults every time I try),
but if anyone needs more info I can probably easily reproduce it.
DES
--
Dag-Erling Smorgrav - des@ofug.org
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