9.2-STABLE r255918 with GENERIC and iwn - core dump

Tue Oct 22 14:28:17 UTC 2013

Hi everyone,

I have a Lenovo Thinkpad T420s with Intel core i7 @ 2.70GHz, 8GB RAM, Intel
SSD 160GB and iwn0: <Intel Centrino Ultimate-N 6300> mem
0xf4200000-0xf4201fff irq 17 at device 0.0 on pci3

Today, while connecting to different AP's, I noticed at one point that I
was not getting an IP although the wifi card was associated. Within
"wifimgr", I did a "Save and Reconnect" and then got a core dump.

Bellow, the bt:

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 "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0xffffff801e5f7000
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff80a10431
stack pointer        = 0x28:0xffffff8000276980
frame pointer        = 0x28:0xffffff8000276a20
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 12 (swi4: clock)
trap number = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff80948a06 at kdb_backtrace+0x66
#1 0xffffffff8090e50e at panic+0x1ce
#2 0xffffffff80cf3440 at trap_fatal+0x290
#3 0xffffffff80cf37a1 at trap_pfault+0x211
#4 0xffffffff80cf3d54 at trap+0x344
#5 0xffffffff80cdd093 at calltrap+0x8
#6 0xffffffff808dfddd at intr_event_execute_handlers+0xfd
#7 0xffffffff808e15cd at ithread_loop+0x9d
#8 0xffffffff808dc82f at fork_exit+0x11f
#9 0xffffffff80cdd5be at fork_trampoline+0xe
Uptime: 8h20m28s
Dumping 952 out of 8106 MB:..2% (CTRL-C to abort)  (CTRL-C to abort)
 (CTRL-C to abort)  (CTRL-C to abort) ..11% (CTRL-C to abort)  (CTRL-C to
abort) ..21%..31% (CTRL-C to abort)  (CTRL-C to abort)  (CTRL-C to abort)
 (CTRL-C to abort)  (CTRL-C to abort) ..41% (CTRL-C to abort)  (CTRL-C to
abort)  (CTRL-C to abort)  (CTRL-C to abort)  (CTRL-C to abort)  (CTRL-C to
abort)  (CTRL-C to abort)  (CTRL-C to abort) ..51% (CTRL-C to abort)
 (CTRL-C to abort) ..61% (CTRL-C to abort) ..71% (CTRL-C to abort)
..81%..91%

Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
/boot-mount/boot/kernel/zfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/zfs.ko
Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
/boot-mount/boot/kernel/opensolaris.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/opensolaris.ko
Reading symbols from /boot/kernel/geom_eli.ko...Reading symbols from
/boot-mount/boot/kernel/geom_eli.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/geom_eli.ko
Reading symbols from /boot/kernel/crypto.ko...Reading symbols from
/boot-mount/boot/kernel/crypto.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/crypto.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from
/boot-mount/boot/kernel/linux.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /boot/kernel/drm.ko...Reading symbols from
/boot-mount/boot/kernel/drm.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/drm.ko
Reading symbols from /boot/modules/nvidia.ko...done.
Loaded symbols for /boot/modules/nvidia.ko
Reading symbols from /boot/kernel/mmc.ko...Reading symbols from
/boot-mount/boot/kernel/mmc.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/mmc.ko
Reading symbols from /boot/kernel/mmcsd.ko...Reading symbols from
/boot-mount/boot/kernel/mmcsd.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/mmcsd.ko
Reading symbols from /boot/kernel/acpi_call.ko...done.
Loaded symbols for /boot/kernel/acpi_call.ko
Reading symbols from /boot/kernel/umodem.ko...Reading symbols from
/boot-mount/boot/kernel/umodem.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/umodem.ko
Reading symbols from /boot/modules/vboxnetflt.ko...done.
Loaded symbols for /boot/modules/vboxnetflt.ko
Reading symbols from /boot/modules/vboxdrv.ko...done.
Loaded symbols for /boot/modules/vboxdrv.ko
Reading symbols from /boot/kernel/netgraph.ko...Reading symbols from
/boot-mount/boot/kernel/netgraph.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/netgraph.ko
Reading symbols from /boot/kernel/ng_ether.ko...Reading symbols from
/boot-mount/boot/kernel/ng_ether.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_ether.ko
Reading symbols from /boot/modules/vboxnetadp.ko...done.
Loaded symbols for /boot/modules/vboxnetadp.ko
#0  doadump (textdump=<value optimized out>) at pcpu.h:234
234 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0  doadump (textdump=<value optimized out>) at pcpu.h:234
#1  0xffffffff8090dfe6 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:449
#2  0xffffffff8090e4e7 in panic (fmt=0x1 <Address 0x1 out of bounds>) at
/usr/src/sys/kern/kern_shutdown.c:637
#3  0xffffffff80cf3440 in trap_fatal (frame=0xc, eva=<value optimized out>)
at /usr/src/sys/amd64/amd64/trap.c:879
#4  0xffffffff80cf37a1 in trap_pfault (frame=0xffffff80002768d0,
usermode=0) at /usr/src/sys/amd64/amd64/trap.c:795
#5  0xffffffff80cf3d54 in trap (frame=0xffffff80002768d0) at
/usr/src/sys/amd64/amd64/trap.c:463
#6  0xffffffff80cdd093 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:232
#7  0xffffffff80a10431 in ieee80211_tx_mgt_timeout (arg=0xffffff801e5f7000)
    at /usr/src/sys/net80211/ieee80211_output.c:2487
#8  0xffffffff809246e8 in softclock (arg=<value optimized out>) at
/usr/src/sys/kern/kern_timeout.c:518
#9  0xffffffff808dfddd in intr_event_execute_handlers (p=<value optimized
out>, ie=0xfffffe0007221b00)
    at /usr/src/sys/kern/kern_intr.c:1272
#10 0xffffffff808e15cd in ithread_loop (arg=0xfffffe0007209460) at
/usr/src/sys/kern/kern_intr.c:1285
#11 0xffffffff808dc82f in fork_exit (callout=0xffffffff808e1530
<ithread_loop>, arg=0xfffffe0007209460,
    frame=0xffffff8000276b00) at /usr/src/sys/kern/kern_fork.c:990
#12 0xffffffff80cdd5be in fork_trampoline () at
/usr/src/sys/amd64/amd64/exception.S:606
#13 0x0000000000000000 in ?? ()

One thing to keep in mind is that since I started using geli+ZFS (installed
with PC-BSD 9.1 cd), I always got "Cannot reset interface wlan0 - exit
status 1" with "wifimgr" whichever action i did (ex: reconect, rescan,
up/down,etc).

I would appreciate some help in debugging this.

-- 
Best regards,
Claudiu Vasadi