The following reply was made to PR kern/128917; it has been noted by GNATS.
From: Marc Peters <m...@sanity.de>
To: bug-follo...@freebsd.org, kita...@epicsol.org
Cc:
Subject: Re: kern/128917: [wpi] [panic] if_wpi and wpa+tkip causing kernel
panic
Date: Fri, 16 Jan 2009 13:34:29 +0100
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I am hitting this too on a network with an airport extreme access point
when it uses "WPA/WPA2". With these Security Setting Apple just uses
TKIP and trying to force FreeBSD to use AES-CCMP in
/etc/wpa_supplicant.conf doesn't work, e.g. wpi cannot connect to the
network. Using only WPA2 on this access point will provide AES and no
more panics.
here is some additional information as suggested on the STABLE-ML:
from a textdump:
msgbuf.txt:
[snipping dmesg and startup-messages]
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0xffff
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0e70dfc
stack pointer = 0x28:0xe58bbbe0
frame pointer = 0x28:0xe58bbc9c
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 = 25 (wpi0 taskq)
ddb.txt (just bt output here):
db> bt
Tracing pid 25 tid 100024 td 0xc5189af0
wpi_ops(c52c5000,1,c0b7cf36,0,0,...) at wpi_ops+0x89c
taskqueue_run(c52ab200,c52ab21c,0,c0b7cf36,0,...) at taskqueue_run+0x175
taskqueue_thread_loop(c52c69b4,e58bbd38,0,0,0,...) at
taskqueue_thread_loop+0xbb
fork_exit(c07fb2b0,c52c69b4,e58bbd38) at fork_exit+0x99
fork_trampoline() at fork_trampoline+0x8
- --- trap 0, eip = 0, esp = 0xe58bbd70, ebp = 0 ---
version.txt:
FreeBSD 7.1-STABLE #0: Thu Jan 15 13:51:12 CET 2009
r...@lappi.agentur.local:/usr/obj/usr/src/sys/DEBUG_DRM
gdb
gdb> file /boot/YOUR_KERNEL/if_wpi.ko
Reading symbols from /boot/kernel/if_wpi.ko...Reading symbols from
/boot/kernel/if_wpi.ko.symbols...done.
gdb> l *wpi_ops+0x89c
0x9dfc is in wpi_ops (/usr/src/sys/modules/wpi/../../dev/wpi/if_wpi.c:2411).
2406 /* update adapter's configuration */
2407 sc->config.associd = 0;
2408 sc->config.filter &= ~htole32(WPI_FILTER_BSS);
2409 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid);
2410 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2411 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
2412 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2413 WPI_CONFIG_24GHZ);
2414 }
2415 switch (ic->ic_curmode) {
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