Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 15 Sep 2008 13:08:38 +0200
From:      Matthias Apitz <guru@unixarea.de>
To:        freebsd-net@FreeBSD.org, freebsd-hackers@freebsd.org
Cc:        bug-followup@FreeBSD.org
Subject:   panic's on KDE-launches (but only in WPA Wifi area) / kern/122331
Message-ID:  <20080915110838.GA5258@rebelion.Sisis.de>

next in thread | raw e-mail | index | archive | help

Hello,

I'm booting my laptop 3 times a day: in the morning at home (WEP area),
when I arrive in my office (WPA area) and in the evening at home
(again);

the sequence is always the same: booting, login into console, startx
which launches via ~/.xinitrc the KDE;

in about 1 of 2-3 cases and only in the office(!) the system panics when
KDE comes up, at the end of the KDE booting and the jingle already
played; today it crashed again and again and after switching off the
Wifi radio on the laptop it came finally up fine;

I did this (Wifi off) because I'm assuming somehow a relation with
http://www.freebsd.org/cgi/query-pr.cgi?pr=122331
where my laptop as well only panic'ed in WPA mode (i.e. in the office)
and with 'bgscan' active; which I now have deactivated;

all these panics look in the debugger more or less like this one:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0xc
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc0788b98
stack pointer           = 0x28:0xe6960acc
frame pointer           = 0x28:0xe6960c50
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 1426 (kdeinit)
trap number             = 12
panic: page fault
cpuid = 0
Uptime: 1m36s
Physical memory: 1009 MB
Dumping 129 MB: 114 98 82 66 50 34 18 2

#0  doadump () at pcpu.h:195
195     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0754457 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2  0xc0754719 in panic (fmt=Variable "fmt" is not available.) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a4905c in trap_fatal (frame=0xe6960a8c, eva=12) at /usr/src/sys/i386/i386/trap.c:899
#4  0xc0a492e0 in trap_pfault (frame=0xe6960a8c, usermode=0, eva=12)
    at /usr/src/sys/i386/i386/trap.c:812
#5  0xc0a49c8c in trap (frame=0xe6960a8c) at /usr/src/sys/i386/i386/trap.c:490
#6  0xc0a2fc0b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc0788b98 in kern_select (td=0xc49d5630, nd=9, fd_in=0x298ad840, fd_ou=0x298ad9c4, 
    fd_ex=0x298adb48, tvp=0x0) at filedesc.h:136
#8  0xc07890de in select (td=0xc49d5630, uap=0xe6960cfc) at /usr/src/sys/kern/sys_generic.c:663
#9  0xc0a49635 in syscall (frame=0xe6960d38) at /usr/src/sys/i386/i386/trap.c:1035
#10 0xc0a2fc70 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:196
#11 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) 

the 'current process' (kdeinit in the above crash) changes, but is
always one of the KDE parts; of course the problem is not KDE related,
it is just that the system comes under heavy usage in that moment;

I already run 'memtest 128' for some hours without any noted problem in
memory; test are just passing fine;

the same problem is with 7.0-RELEASE as with RELENG_7;

what can I do to nail this down? it sucks somehow seeing it crashing on
startup in the morning in the office :-((

thx

	matthias

-- 
Matthias Apitz
Manager Technical Support - OCLC GmbH
Gruenwalder Weg 28g - 82041 Oberhaching - Germany
t +49-89-61308 351 - f +49-89-61308 399 - m +49-170-4527211
e <matthias.apitz@oclc.org> - w http://www.oclc.org/ http://www.UnixArea.de/
b http://gurucubano.blogspot.com/
A computer is like an air conditioner, it stops working when you open Windows
Una computadora es como aire acondicionado, deja de funcionar si abres Windows



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080915110838.GA5258>