>Number:         7697
>Category:       kern
>Synopsis:       uvm crash on idle machine
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun  3 09:35:00 1999
>Last-Modified:
>Originator:     Martin J. Laubach
>Organization:
	
>Release:        1.4C as of mid May.
>Environment:
	
System: NetBSD cactus.emsi.priv.at 1.4C NetBSD 1.4C (CACTUS) #7: Thu Jun 3 03:53:03 CEST 1999 mjl@asparagus:/home/temp/devel/cvs/src/sys/arch/i386/compile/CACTUS i386


>Description:
  The system spontaneously reboots itself every now and then.
The crash dump says:


panic: trap

#0  0xf0228a96 in sys_sysarch () at ../../../../arch/i386/i386/trap.c:250
#1  0xf0222567 in cpu_reboot (howto=256, bootstr=0x0)
    at ../../../../arch/i386/i386/machdep.c:1232
#2  0xf01af4f0 in log (level=-266171754, fmt=0x0)
    at ../../../../kern/subr_prf.c:212
#3  0xf0228d25 in trap (frame={tf_es = -265879536, tf_ds = -266731504,
      tf_edi = -265903144, tf_esi = -265903144, tf_ebp = -265871540,
      tf_ebx = 2147483647, tf_edx = 0, tf_ecx = 0, tf_eax = 0, tf_trapno = 6,
      tf_err = 0, tf_eip = 0, tf_cs = 2147418120, tf_eflags = 66118,
      tf_esp = -536867615, tf_ss = -265903144, tf_vm86_es = 0,
      tf_vm86_ds = 2147483647, tf_vm86_fs = -266694436,
      tf_vm86_gs = -265903144}) at ../../../../arch/i386/i386/trap.c:310

<- manual backtrace from here on ->

#2  0xf01a8be5 in tsleep (ident=0xf026a3d8, priority=4,
    wmesg=0xf0213c54 "scheduler", timo=0) at ../../../../kern/kern_synch.c:370
370             mi_switch();
(gdb) up
#3  0xf0213ccc in uvm_scheduler () at ../../../../uvm/uvm_glue.c:437
437                     tsleep((caddr_t)&proc0, PVM, "scheduler", 0);
(gdb) up
#4  0xf019da5e in main () at ../../../../kern/init_main.c:423
423             uvm_scheduler();
(gdb) up
Initial frame selected; you cannot go up.

>How-To-Repeat:
  Unknown.

>Fix:
>Audit-Trail:
>Unformatted: