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Date:      Tue, 11 Feb 2003 16:53:10 -0800
From:      Lars Eggert <larse@ISI.EDU>
To:        current <current@FreeBSD.ORG>, Poul-Henning Kamp <phk@critter.freebsd.dk>
Subject:   sio issue
Message-ID:  <3E499AF6.9080306@isi.edu>
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[-- Attachment #1 --]
Hi,

lately, I end up in ddb when I connect my (unconnected) serial console 
cable to another machine. It's not critical, since "c" will continue 
fine, but it's annoying. Here's a trace:

db> trace
siointr1(c635a0000,0,c0361fb6,671,df101ce8) at siointr1+0x3c4
siointr(c635a000) at siointr+0x35
Xfastintr4() at Xfastintr4+0xba
--- interrupt, eip = 0xc0301942, esp = 0xdf101ce8, ebp = 0xdf101ce8 ---
cpu_idle(c037a9a0,2,c0346fa9,59,0) at cpu_idle+0x22
idle_proc(0,df101d48,c0346e65,361,0) at idle_proc+0x4e
fork_exit(c01a6440,0,df101d48) at fork_exit+0xa9
fork_trampoline() at fork_trampoline+0x1a
--- trap 0x1, eip = 0, esp = 0xdf101d7c, ebp = 0 ---
db> c

Could this commit be related at all?

> phk         2003/02/02 13:25:22 PST
> 
>   Modified files:
>     sys/dev/sio          sio.c 
>   Log:
>   Set si_drv1 to our softc for all the six dev_t's we create for a serial port.
>   
>   Revision  Changes    Path
>   1.383     +2 -0      src/sys/dev/sio/sio.c

Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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