>Number:         10231
>Category:       kern
>Synopsis:       panic in soft dependence code
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 30 01:52:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Matthias Scheler
>Release:        2000/05/30
>Organization:
Matthias Scheler                            http://www.sighardstrasse.de/~tron/
>Environment:
System: NetBSD 1.4Z (LYSSA) #0: Tue May 30 10:13:15 CEST 2000
    tron@lyssa.zhadum.de:/src/sys/compile/LYSSA


>Description:
My system crashed several times this morning. After the 3rd crash I was
able to get a kernel dump:

panic: softdep_fsync: pending ops
#0  0x104 in ?? ()
#1  0xc0234aa3 in cpu_reboot ()
#2  0xc014ff15 in panic ()
#3  0xc0239b85 in trap ()
#4  0xc0100cf1 in calltrap ()
#5  0xc0150385 in printf ()
#6  0xc012e6cc in db_printsym ()
#7  0xc0232e77 in db_stack_trace_print ()
#8  0xc014fee4 in panic ()
#9  0xc02a5ce6 in softdep_fsync ()
#10 0xc016e899 in sys_fsync ()
#11 0xc023a14f in syscall ()
#12 0xc0100d9d in syscall1 ()
can not access 0xbfbfb4ac, invalid translation (invalid PDE)
can not access 0xbfbfb4ac, invalid translation (invalid PDE)
Cannot access memory at address 0xbfbfb4ac.

>How-To-Repeat:
Do some heavy disk activity e.g. a package rebuild with a current kernel
compiled from 2000/05/29 or 2000/05/30 sources.

>Fix:
Sorry, I don't know. Downgrading to a kernel compiled from 2000/05/23 sources
seems to avoid the problem.
>Release-Note:
>Audit-Trail:
>Unformatted: