Bug 125332

If I use the network (an atheros card on a WPA netowork) for anything siginificant the machine locks up as per the trace below. Interestingly, it doesn't seem to have a problem with aquiring an address via DHCP.


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 data, page not present
instruction pointer	= 0x8:0xffffffff8025e2f2
stack pointer	        = 0x10:0xffffffffaec9e630
frame pointer	        = 0x10:0xffffff00018fa100
code segment		= base rx0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 16516 (fetch)
trap number		= 12
panic: page fault
cpuid = 2
Uptime: 2m56s
Physical memory: 2034 MB
Dumping 251 MB: (CTRL-C to abort)  236 220 (CTRL-C to abort)  204 188 172 156 140 124 108 92 76 60 (CTRL-C to abort)  44 28 12

Reading symbols from /boot/kernel/snd_ich.ko...Reading symbols from /boot/kernel/snd_ich.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/snd_ich.ko
Reading symbols from /boot/kernel/sound.ko...Reading symbols from /boot/kernel/sound.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/sound.ko
Reading symbols from /boot/kernel/aio.ko...Reading symbols from /boot/kernel/aio.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/aio.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
#0  doadump () at pcpu.h:194
194	pcpu.h: No such file or directory.
	in pcpu.h
(kgdb) where
#0  doadump () at pcpu.h:194
#1  0x0000000000000004 in ?? ()
#2  0xffffffff804964a9 in boot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:418
#3  0xffffffff804968ad in panic (fmt=0x104 <Address 0x104 out of bounds>)
    at /usr/src/sys/kern/kern_shutdown.c:572
#4  0xffffffff8075ff74 in trap_fatal (frame=0xffffff00044d66a0, 
    eva=18446742974267905128) at /usr/src/sys/amd64/amd64/trap.c:724
#5  0xffffffff80760345 in trap_pfault (frame=0xffffffffaec9e580, usermode=0)
    at /usr/src/sys/amd64/amd64/trap.c:641
#6  0xffffffff80760c88 in trap (frame=0xffffffffaec9e580)
    at /usr/src/sys/amd64/amd64/trap.c:410
#7  0xffffffff8074664e in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:169
#8  0xffffffff8025e2f2 in ath_start (ifp=0xffffff00011cd800)
    at /usr/src/sys/dev/ath/if_ath.c:1747
#9  0xffffffff8052fab6 in ether_output_frame (ifp=0xffffff00011cd800, 
    m=0xffffff000421eb00) at /usr/src/sys/net/if_ethersubr.c:405
#10 0xffffffff805300e2 in ether_output (ifp=0xffffff00011cd800, 
    m=0xffffff000421eb00, dst=Variable "dst" is not available.
) at /usr/src/sys/net/if_ethersubr.c:374
#11 0xffffffff805755df in ip_output (m=0xffffff000421eb00, opt=Variable "opt" is not available.
)
    at /usr/src/sys/netinet/ip_output.c:551
#12 0xffffffff805ce48c in tcp_output (tp=0xffffff0004216b60)
    at /usr/src/sys/netinet/tcp_output.c:1135
#13 0xffffffff805d880d in tcp_usr_rcvd (so=Variable "so" is not available.
)
    at /usr/src/sys/netinet/tcp_usrreq.c:738
#14 0xffffffff804ef5cf in soreceive_generic (so=0xffffff001040c570, psa=0x0, 
    uio=0xffffffffaec9eb00, mp0=Variable "mp0" is not available.
) at /usr/src/sys/kern/uipc_socket.c:1825
#15 0xffffffff804cee1d in dofileread (td=0xffffff00044d66a0, fd=3, 
    fp=0xffffff00047e4168, auio=0xffffffffaec9eb00, offset=Variable "offset" is not available.
) at file.h:242
#16 0xffffffff804cf18e in kern_readv (td=0xffffff00044d66a0, fd=3, 
    auio=0xffffffffaec9eb00) at /usr/src/sys/kern/sys_generic.c:192
#17 0xffffffff804cf27c in read (td=0xffffffff80e62000, uap=0xffffff00044d66a0)
    at /usr/src/sys/kern/sys_generic.c:108
#18 0xffffffff807605c7 in syscall (frame=0xffffffffaec9ec70)
    at /usr/src/sys/amd64/amd64/trap.c:852
#19 0xffffffff8074685b in Xfast_syscall ()
    at /usr/src/sys/amd64/amd64/exception.S:290
#20 0x0000000800c0297c in ?? ()
Previous frame inner to this frame (corrupt stack?)

Fix: 

Going to roll back to my old kernel I think.
How-To-Repeat: Boot PC, fetch someting large or open firefox, go myspace or any other website really (although the really simple firefox start page is usually okay).