Bug#345647: madwifi driver causes kernel oops

[Graham]

>  Maybe you can get the syscall causing this with strace?

That's a good idea. Here's the last bit of the strace output.

gettimeofday({1136337522, 921263}, NULL) = 0
gettimeofday({1136337522, 921656}, NULL) = 0
gettimeofday({1136337522, 922370}, NULL) = 0
ioctl(5, FIONREAD, [1])                 = 0
gettimeofday({1136337522, 924447}, NULL) = 0
ioctl(10, SIOCSIWSCAN, 0xbff66858)      = -1 EPERM (Operation not permitted)
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {0xb7636310, [], SA_RESTART|SA_NOCLDSTOP}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({3, 0}, {3, 0})               = 0
ioctl(10, SIOCGIWSCAN <unfinished ...>
+++ killed by SIGSEGV +++

That coincides with the kernel oops, though I'm not sure it provides
any extra information.

[<e0b0bfa0>] ath_ioctl_giwscan+0x0/0x20 [ath_pci]

Let me know if there's anything else you'd like me to try. Thanks.

-- graham