Subject: kern/23234: Kernel Fault and subsequently to ddb
To: None <gnats-bugs@gnats.NetBSD.org>
From: None <dheeraj@ece.gatech.edu>
List: netbsd-bugs
Date: 10/22/2003 18:19:35
>Number:         23234
>Category:       kern
>Synopsis:       Kernel Fault and subsequently to ddb
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 22 18:20:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Dheeraj Reddy
>Release:        current  22 Oct
>Organization:
Anon
>Environment:
NetBSD vagisha 1.6ZD NetBSD 1.6ZD (VAGISHA) #0: Tue Oct 21 20:25:35 EDT 2003  root@vagisha:/opt/obj/sys/arch/i386/compile/VAGISHA i386
>Description:
db> bt
tcp_close(c02d1680,4,c02d1680,c0361e9c,c01c2a6f) at netbsd:tcp_close+0x4b
tcp_timer_2msl(c02d1680,c0805b80,c03126c0,c07cfd80,c0361eb0) at netbsd:tcp_timer_2msl+0x76
softclock(0,0,c0100b48,c0813880,c010289d) at netbsd:softclock+0x1df
softintr_dispatch(0,10, 37bd0030, 10010, c0360010) at netbsd:softintr_dispatch+0xa7
Xsoftclock() at netbsd"Xsoftclock+0x25
--- interrupt ---
cpu_switch(c03097a0,0,1,0,0) at netbsd:cpu_switch+0x9f
ltsleep(c03095e0,4,c02b3d14,0,0) at netbsd:ltsleep+0x1de
uvm_scheduler(c03095c0,1,c035d010,35d000,366000) at netbsd:uvm_scheduler+0x6f
check_console(0,0,0,0,0) at netbsd:check_console

db> show registers
ds 0x10
es 0x10
fs 0x30
gs 0x10
edi 0
esi 0xc02d1680  tcpcb_template
ebp 0xc0361e70  pnpbios_softc+0x4cf30
ebx 0xc02d1680  tcpcb_template
edx 0
ecx 0
eax 0
eip 0xc0116811  tcp_close+0x4b
cs  0x8
eflags 0x10246
esp  0xc0361e54 pnpbios_softc+0x4cf14
ss   0x10
netbsd:tcp_close+0x4b: movl ox58(%ecx), %eax
  
>How-To-Repeat:
I got this when I was repeatedly trying to access anoncvs.netbsd.org and the update was getting stuck repeatedly
cvs up -Pd 
<snipped cvs messages>
^C
cvs up -Pd
<snipped cvs messages>
^C
cvs up -Pd
<snipped cvs messages>
^C
db>

>Fix:
Sorry.
>Release-Note:
>Audit-Trail:
>Unformatted: