On Friday 25 April 2008 08:25:14 am 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.
>
> % cat /var/crash/info.43
> Dump header from device /dev/ad0s2b
> Architecture: i386
> Architecture Version: 2
> Dump Length: 162320384B (154 MB)
> Blocksize: 512
> Dumptime: Fri Mar 28 17:24:32 2008
> Hostname: vbook.fbsd.ru
> Magic: FreeBSD Kernel Dump
> Version String: FreeBSD 7.0-STABLE #3: Tue Mar 11 19:35:53 MSK 2008
> root@vbook:/usr/obj/usr/src/sys/VBOOK
> Panic String: non-maskable interrupt trap
> Dump Parity: 3087556879
> Bounds: 43
> Dump Status: good
>
> kgdb does not shows match (why ?):
>
> % kgdb /boot/kernel.bad/kernel /var/crash/vmcore.43
> [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 debugging symbols found)...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 0x00000000 in ?? ()
> (kgdb)
>
> Any ideas what to do ? Or probably some hints.


Build a kernel with debug symbols and then reproduce the crash.

--
John Baldwin
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