Crash with recent kernel on wireless

[Da Rock]

On Sat, 2008-04-26 at 11:11 +0400, Vladimir Grebenschikov wrote:
> On Fri, 2008-04-25 at 18:00 +0200, Roland Smith wrote:
> > On Fri, Apr 25, 2008 at 04:25:14PM +0400, Vladimir Grebenschikov wrote:
> > > Hi
> > > 
> > > Recently I've upgraded 7-STABLE: Mar 11 -> Apr 24
> > > 
> > > Everything was fine until I've tried to configure wireless (ath driver,
> > > WPA)
> > > It crashes every time after interface becomes UP, 
> > > (I've seen associated in ifconfig output before crash), but before dhcp
> > > finished to get IP.
> 
> > You should use the kernel image with the debugging symbols here. If
> > you
> > build and install a kernel, you get two kernel images on 7.x;
> > 1) /boot/kernel/kernel (your regular kernel)
> > 2) /boot/kernel/kernel.symbols (with the debug symbols)
> 
> Hm, I've thought before, that it will show back-trace even without debug
> symbols.
> Anyway, gdb still complains about "linker_file" and "not as structure
> pointer"
> But shows stop point. 
> Not much info here :(
> 
> cat /var/crash/info.44 
> Dump header from device /dev/ad0s2b
>   Architecture: i386
>   Architecture Version: 2
>   Dump Length: 190091264B (181 MB)
>   Blocksize: 512
>   Dumptime: Sat Apr 26 10:50:05 2008
>   Hostname: vbook.fbsd.ru
>   Magic: FreeBSD Kernel Dump
>   Version String: FreeBSD 7.0-STABLE #3: Sat Apr 26 10:20:31 MSD 2008
>     root at vbook.fbsd.ru:/usr/src/sys/i386/compile/VBOOK
>   Panic String: page fault
>   Dump Parity: 4236056142
>   Bounds: 44
>   Dump Status: good
> 
> 
> kgdb /boot/kernel/kernel.symbols /var/crash/vmcore.44
> [GDB will not be able to debug user-mode
> threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for
> details.
> This GDB was configured as "i386-marcel-freebsd".
> No struct type named linker_file.
> No struct type named linker_file.
> No struct type named linker_file.
> No struct type named linker_file.
> Attempt to extract a component of a value that is not a structure
> pointer.
> Attempt to extract a component of a value that is not a structure
> pointer.
> Attempt to extract a component of a value that is not a structure
> pointer.
> Attempt to extract a component of a value that is not a structure
> pointer.
> #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  0xc0542757 in boot (howto=260) at ../../../kern/kern_shutdown.c:418
> #2  0xc0542a53 in panic (fmt=Variable "fmt" is not available.) at ../../../kern/kern_shutdown.c:572
> #3  0xc06a8870 in trap_fatal ()
> #4  0xc06a8c2a in trap_pfault ()
> #5  0xc06a957e in trap ()
> #6  0xc068e80b in calltrap ()
> #7  0xc58b68d5 in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb) 
> 
> Most of crashes even failed to save vmdump due to double faults.
> 
> Looks like it is really related to wireless code.
> Effect happens only at my home WiFi network and does not happens at work
> (WPA-PSK vs PEAP)
> and always current process in nmbd (broadcasting ?).
> 
> Crash happens with both 4BSD and ULE schedulers.
> 
> My system have dual-core Intel x86 CPU (SMP kernel)

FWIW I've had to install 6.3 because my new system crashed on 7- uses a
ral driver for a linksys wmp54g card. I'm not sure about broadcasting,
but it failed after only moments of up time.

I'm also going to have to roll back to 6.3 on another machine of similar
design (minus wifi nic)- crashes every so often. So far I haven't been
able to get a dump because I don't see it happen and I can't find the
logs yet.

Machines use a gigabyte GA-945GCM-S2L mb with a celeron ~1.6G cpu and
1gig RAM, seagate 80gb sata hdd. Main diff is case- 1x desktop (250W),
1x tower (400W).