Subject: kern/23418: Kernel panic under medium system load
To: None <gnats-bugs@gnats.netbsd.org>
From: Matthias Scheler <tron@colwyn.zhadum.de>
List: netbsd-bugs
Date: 11/12/2003 13:05:18
>Number:         23418
>Category:       kern
>Synopsis:       Kernel panic under medium system load
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 12 12:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     
>Release:        NetBSD 1.6ZE 2003-11-11 sources
>Organization:
Matthias Scheler                                  http://scheler.de/~matthias/
>Environment:
System: NetBSD lyssa.zhadum.de 1.6ZE NetBSD 1.6ZE (LYSSA) #0: Tue Nov 11 09:10:03 CET 2003 tron@lyssa.zhadum.de:/src/sys/compile/LYSSA i386
Architecture: i386
Machine: i386
>Description:
While rebuilding a lot of packages my system paniced with this message:

uvm_fault(0xc045de00, 0xe9a9d000, 0, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c02c8daf cs 8 eflags 10202 cr2 e9a9d530 ilevel 0
panic: trap
Begin traceback...
trap() at netbsd:trap+0x131
--- trap (number -374745852) ---
0:
End traceback...
syncing disks... uvm_fault(0xc045de00, 0xe9a9d000, 0, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c025aa8b cs 8 eflags 10282 cr2 e9a9d531 ilevel c
panic: trap
Begin traceback...
trap() at netbsd:trap+0x131
--- trap (number -374745852) ---
0:
End traceback...

Here is the stack trace from the crash dump:

#0  0x1 in ?? ()
#1  0xc02e1b1a in cpu_reboot ()
#2  0xc0265fb4 in panic ()
#3  0xc02e95d5 in trap ()
#4  0xc010ad81 in calltrap ()
#5  0xc028718a in vfs_shutdown ()
#6  0xc02e1b2e in cpu_reboot ()
#7  0xc0265fb4 in panic ()
#8  0xc02e95d5 in trap ()
#9  0xc010ad81 in calltrap ()
#10 0xc02d4c37 in uvmpd_scan ()
#11 0xc02d4356 in uvm_pageout ()

>How-To-Repeat:
No idea, it only happened once so far.

>Fix:
None provided.

>Release-Note:
>Audit-Trail:
>Unformatted: