kern/137776: [rum] panic in rum(4) driver on 8.0-BETA2

Wed Sep 30 17:08:25 UTC 2009

hi list,

I would like to say sorry for my poor english

i want to say that I can reproduce this panic always. If i run wine + 
WoW (World of Warcraft), the internet connection is lost and then if i 
run /etc/rc.d/netif restart the panic always appear.

if you need make tests i can make it on my pc and give you the 
results of the test.

I am only a normal user, not a developer user. If I have to apply patch 
(maybe) I need some help in how to apply it.

My system is running  8.0-RC1 FreeBSD 8.0-RC1 #0: Thu Sep 17 
20:45:19 UTC 2009     
root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

and this is my panic:

kgdb /boot/kernel/kernel.symbols vmcore.1 
GNU gdb 6.1.1 [FreeBSD]

This GDB was configured as "i386-marcel-freebsd"...

Unread portion of the kernel message buffer:

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address   = 0x20
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc09408a8
stack pointer           = 0x28:0xe89809a4
frame pointer           = 0x28:0xe89809c0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 2321 (wpa_supplicant)
trap number             = 12
panic: page fault
cpuid = 1
Uptime: 3m18s
Physical memory: 2022 MB
Dumping 222 MB: 207 191 175 159 143 127 111 95 79 63 47 31 15

Reading symbols from /boot/kernel/geom_journal.ko...Reading symbols 
from /boot/kernel/geom_journal.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/geom_journal.ko
Reading symbols from /boot/kernel/snd_hda.ko...Reading symbols 
from /boot/kernel/snd_hda.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/snd_hda.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/coretemp.ko...Reading symbols 
from /boot/kernel/coretemp.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/coretemp.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/kernel/atapicam.ko...Reading symbols 
from /boot/kernel/atapicam.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/atapicam.ko
Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols 
from /boot/kernel/linprocfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /usr/local/modules/fuse.ko...done.
Loaded symbols for /usr/local/modules/fuse.ko
Reading symbols from /usr/local/modules/rtc.ko...done.
Loaded symbols for /usr/local/modules/rtc.ko
#0  doadump () at pcpu.h:246
246     pcpu.h: No such file or directory.
        in pcpu.h

(kgdb) bt
#0  doadump () at pcpu.h:246
#1  0xc08823c7 in boot (howto=260) at 
/usr/src/sys/kern/kern_shutdown.c:416
#2  0xc08826b9 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:579
#3  0xc0bb346c in trap_fatal (frame=0xe8980964, eva=32) at 
/usr/src/sys/i386/i386/trap.c:933
#4  0xc0bb36f0 in trap_pfault (frame=0xe8980964, usermode=0, 
eva=32) at /usr/src/sys/i386/i386/trap.c:846
#5  0xc0bb40d5 in trap (frame=0xe8980964) at 
/usr/src/sys/i386/i386/trap.c:528
#6  0xc0b96a4b in calltrap () at 
/usr/src/sys/i386/i386/exception.s:165
#7  0xc09408a8 in ieee80211_crypto_encap (ni=0xc6b5d000, 
m=0xc776dc00) at /usr/src/sys/net80211/ieee80211_crypto.c:560
#8  0xc07ca32b in rum_start (ifp=0xc67e2400) at 
/usr/src/sys/dev/usb/wlan/if_rum.c:1216
#9  0xc0923582 in if_start (ifp=0xc67e2400) at 
/usr/src/sys/net/if.c:3242
#10 0xc092750b in if_transmit (ifp=0xc67e2400, m=0xc6a60c00) at 
/usr/src/sys/net/if.c:3254
#11 0xc0963082 in ieee80211_start (ifp=0xc6409400) at 
/usr/src/sys/net80211/ieee80211_output.c:362
#12 0xc0923582 in if_start (ifp=0xc6409400) at 
/usr/src/sys/net/if.c:3242
#13 0xc092750b in if_transmit (ifp=0xc6409400, m=0xc6acc200) at 
/usr/src/sys/net/if.c:3254
#14 0xc092bd90 in ether_output_frame (ifp=0xc6409400, 
m=0xc6acc200) at /usr/src/sys/net/if_ethersubr.c:452
#15 0xc092c77b in ether_output (ifp=0xc6409400, m=0xc6acc200, 
dst=0xe8980b98, ro=0x0) at /usr/src/sys/net/if_ethersubr.c:423
#16 0xc09626fd in ieee80211_output (ifp=0xc6409400, 
m=0xc6acc200, dst=0xe8980b98, ro=0x0) at 
/usr/src/sys/net80211/ieee80211_output.c:406
#17 0xc092034b in bpfwrite (dev=0xc61df200, uio=0xe8980c58, 
ioflag=0) at /usr/src/sys/net/bpf.c:889
#18 0xc0806b4f in devfs_write_f (fp=0xc68c8310, uio=0xe8980c58, 
cred=0xc77d8e00, flags=0, td=0xc68586c0) at 
/usr/src/sys/fs/devfs/devfs_vnops.c:1509
#19 0xc08be3f7 in dofilewrite (td=0xc68586c0, fd=6, 
fp=0xc68c8310, auio=0xe8980c58, offset=-1, flags=0) at file.h:239
#20 0xc08be6e8 in kern_writev (td=0xc68586c0, fd=6, 
auio=0xe8980c58) at /usr/src/sys/kern/sys_generic.c:446
#21 0xc08be76f in write (td=0xc68586c0, uap=0xe8980cf8) at 
/usr/src/sys/kern/sys_generic.c:362
#22 0xc0bb3a35 in syscall (frame=0xe8980d38) at 
/usr/src/sys/i386/i386/trap.c:1073
#23 0xc0b96ab0 in Xint0x80_syscall () at 
/usr/src/sys/i386/i386/exception.s:261
#24 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)