>Number:         11742
>Category:       kern
>Synopsis:       possible panic from kernel ntp
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 14 14:03:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Tom Spindler
>Release:        <NetBSD-current source date> 11 Dec 2000 -r netbsd-1-5
>Organization:
	
>Environment:
	
System: NetBSD beefcake.biff.net 1.5.1_ALPHA NetBSD 1.5.1_ALPHA (DOGCOW) #8: Tue Dec 12 06:30:20 PST 2000 dogcow@beefcake.biff.net:/big/dc/current/src/sys/arch/i386/compile/DOGCOW i386


>Description:
Got a panic from what looks like possibly kernel ntp-related lossage?
(there's also the second panic after the first panic relating to wdc not
flushing properly, but that's not relevant to this pr.)

(gdb) up
#8  0xc0141011 in panic () at ../../../../kern/subr_prf.c:240
240             cpu_reboot(bootopt, NULL);
(gdb) up
#9  0xc01fb6e1 in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1067465520, 
      tf_esi = 1172, tf_ebp = -911626444, tf_ebx = -911626476, tf_edx = 52, 
      tf_ecx = -911626472, tf_eax = -1070766124, tf_trapno = 6, tf_err = 2, 
      tf_eip = -1072089200, tf_cs = 8, tf_eflags = 66182, tf_esp = 0, 
      tf_ss = -2147483648, tf_vm86_es = -1072382728, tf_vm86_ds = 17520, 
      tf_vm86_fs = 16072, tf_vm86_gs = 52})
    at ../../../../arch/i386/i386/trap.c:308
308                     panic("trap");
(gdb) up
#10 0xc0100cfd in calltrap ()
(gdb) up
#11 0xc01953ed in tcp_fasttimo () at ../../../../netinet/tcp_timer.c:165
165                     (void) tcp_output(tp);
(gdb) print tp
$1 = (struct tcpcb *) 0x0
(gdb) up
#12 0xc014bd25 in pffasttimo (arg=0x0) at ../../../../kern/uipc_domain.c:294
294                                     (*pr->pr_fasttimo)();
(gdb) up
#13 0xc012d9ed in softclock () at ../../../../kern/kern_clock.c:921
921                                     (*func)(arg);
(gdb) up
#14 0xc012d87b in hardclock (frame=0xc9a9afac)
    at ../../../../kern/kern_clock.c:855
855                             softclock();
(gdb) up
#15 0xc022c493 in clockintr (arg=0xc9a9afac)
    at ../../../../arch/i386/isa/clock.c:409
409             hardclock(frame);
(gdb) up
#16 0xc0100ec4 in Xintr0 ()
(gdb) up
Initial frame selected; you cannot go up.

	
>How-To-Repeat:
There was both heavy disk activity, and heavy network activity.
(ide drives, and a rtk enet card.)
	
>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: