reproducible dump possibly related to ath and virtualbox

Sun Sep 15 12:48:31 UTC 2013

I just had another core dump on 9.2-PRERELEASE #1 r255487 amd64, and I
think i see a pattern. Every now and then, at least once per day, my
Atheros AR9285 hangs. Ifconfig shows it as associated, it does not loose
IP adress, i can ping 127.0.0.1 but nothing else. As it happens quite
often, I made an alias for it in .tcshrc:

sudo ifconfig wlan0 destroy && sleep 3 && sudo ifconfig wlan0 create wlandev ath0

If virtualbox is running with guest with bridged adapter my system crashes:

kaa.mimar.rs dumped core - see /var/crash/vmcore.3

Sun Sep 15 08:26:41 CEST 2013

FreeBSD kaa.mimar.rs 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #1 r255487: Thu Sep 12 10:15:25 CEST 2013     root at kaa.mimar.rs:/usr/obj/usr/src/sys/KAAGEN  amd64

panic: page fault

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 = 2; apic id = 02
fault virtual address	= 0x0
fault code		= supervisor read instruction, page not present
instruction pointer	= 0x20:0x0
stack pointer	        = 0x28:0xffffff8127e4e4a0
frame pointer	        = 0x28:0xffffff8127e4e4e0
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		= 5945 (VirtualBox)
trap number		= 12
timeout stopping cpus
panic: page fault
cpuid = 2
KDB: stack backtrace:
#0 0xffffffff80948ab6 at kdb_backtrace+0x66
#1 0xffffffff8090e5ee at panic+0x1ce
#2 0xffffffff80cf33f0 at trap_fatal+0x290
#3 0xffffffff80cf3751 at trap_pfault+0x211
#4 0xffffffff80cf3d04 at trap+0x344
#5 0xffffffff80cdd033 at calltrap+0x8
#6 0xffffffff8285dcb4 at vboxNetFltPortXmit+0x64
#7 0xffffffff828c83e8 at fuse_germ_vnops+0x55ce8
#8 0xffffffff828c8984 at fuse_germ_vnops+0x56284
#9 0xffffffff828ca172 at fuse_germ_vnops+0x57a72
#10 0xffffffff828caf02 at fuse_germ_vnops+0x58802
#11 0xffffffff82889647 at fuse_germ_vnops+0x16f47
#12 0xffffffff828898a8 at fuse_germ_vnops+0x171a8
#13 0xffffffff825993b2 at supdrvIOCtl+0x1d12
#14 0xffffffff8259eef0 at VBoxDrvFreeBSDIOCtl+0x1d0
#15 0xffffffff807f530b at devfs_ioctl_f+0x7b
#16 0xffffffff8095b576 at kern_ioctl+0x106
#17 0xffffffff8095b7bd at sys_ioctl+0xfd
Uptime: 1d15h20m51s
Dumping 733 out of 3984 MB:..3%..11%..22%..31%..42%..51%..62%..72%..81%..92%

Reading symbols from /boot/kernel/acpi_video.ko...Reading symbols from /boot/kernel/acpi_video.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/acpi_video.ko
Reading symbols from /boot/modules/nvidia.ko...done.
Loaded symbols for /boot/modules/nvidia.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from /boot/kernel/linux.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /boot/modules/vboxdrv.ko...done.
Loaded symbols for /boot/modules/vboxdrv.ko
Reading symbols from /boot/kernel/tmpfs.ko...Reading symbols from /boot/kernel/tmpfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/tmpfs.ko
Reading symbols from /boot/kernel/ng_ubt.ko...Reading symbols from /boot/kernel/ng_ubt.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_ubt.ko
Reading symbols from /boot/kernel/ng_hci.ko...Reading symbols from /boot/kernel/ng_hci.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_hci.ko
Reading symbols from /boot/kernel/ng_bluetooth.ko...Reading symbols from /boot/kernel/ng_bluetooth.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_bluetooth.ko
Reading symbols from /boot/kernel/netgraph.ko...Reading symbols from /boot/kernel/netgraph.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/netgraph.ko
Reading symbols from /boot/kernel/ng_l2cap.ko...Reading symbols from /boot/kernel/ng_l2cap.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_l2cap.ko
Reading symbols from /boot/kernel/ng_btsocket.ko...Reading symbols from /boot/kernel/ng_btsocket.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_btsocket.ko
Reading symbols from /boot/kernel/ng_socket.ko...Reading symbols from /boot/kernel/ng_socket.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ng_socket.ko
Reading symbols from /boot/modules/vboxnetflt.ko...done.
Loaded symbols for /boot/modules/vboxnetflt.ko
Reading symbols from /boot/kernel/ng_ether.ko...Reading symbols from /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
Reading symbols from /usr/local/modules/fuse.ko...done.
Loaded symbols for /usr/local/modules/fuse.ko
#0  doadump (textdump=<value optimized out>) at pcpu.h:234
234	pcpu.h: No such file or directory.
	in pcpu.h
(kgdb) #0  doadump (textdump=<value optimized out>) at pcpu.h:234
#1  0xffffffff8090e0c6 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:449
#2  0xffffffff8090e5c7 in panic (fmt=0x1 <Address 0x1 out of bounds>)
    at /usr/src/sys/kern/kern_shutdown.c:637
#3  0xffffffff80cf33f0 in trap_fatal (frame=0xc, eva=<value optimized out>)
    at /usr/src/sys/amd64/amd64/trap.c:879
#4  0xffffffff80cf3751 in trap_pfault (frame=0xffffff8127e4e3f0, usermode=0)
    at /usr/src/sys/amd64/amd64/trap.c:795
#5  0xffffffff80cf3d04 in trap (frame=0xffffff8127e4e3f0)
    at /usr/src/sys/amd64/amd64/trap.c:463
#6  0xffffffff80cdd033 in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:232
#7  0x0000000000000000 in ?? ()
(kgdb) 

-- 
Marko Cupać