2007-07-27 12:29:40

by Michael Büsch

Subject: mac80211: BUG sleeping function called from invalid context

[ 182.608472] bcm43xx-phy0 debug: Wireless interface started
[ 182.619150] HW CONFIG: channel=1 freq=2412 phymode=3
[ 182.703230] ADDRCONF(NETDEV_UP): sta0: link is not ready
[ 183.070139] HW CONFIG: channel=1 freq=2412 phymode=3
[ 183.130011] HW CONFIG: channel=2 freq=2417 phymode=3
[ 183.210009] HW CONFIG: channel=3 freq=2422 phymode=3
[ 183.290014] HW CONFIG: channel=4 freq=2427 phymode=3
[ 183.370009] HW CONFIG: channel=5 freq=2432 phymode=3
[ 183.450007] HW CONFIG: channel=6 freq=2437 phymode=3
[ 183.530007] HW CONFIG: channel=7 freq=2442 phymode=3
[ 183.610007] HW CONFIG: channel=8 freq=2447 phymode=3
[ 183.690008] HW CONFIG: channel=9 freq=2452 phymode=3
[ 183.770010] HW CONFIG: channel=10 freq=2457 phymode=3
[ 183.850007] HW CONFIG: channel=11 freq=2462 phymode=3
[ 183.930011] HW CONFIG: channel=1 freq=2412 phymode=3
[ 183.950972] BUG: sleeping function called from invalid context at mm/slab.c:3024
[ 183.951305] in_atomic():1, irqs_disabled():0
[ 183.952456] Call Trace:
[ 183.953521] [db633cc0] [c0008978] show_stack+0x50/0x184 (unreliable)
[ 183.954780] [db633ce0] [c002a164] __might_sleep+0xc0/0xd4
[ 183.955982] [db633cf0] [c007862c] kmem_cache_alloc+0x34/0x118
[ 183.957198] [db633d10] [e25fa20c] ieee80211_sta_scan_results+0x548/0x750 [mac80211]
[ 183.958564] [db633d60] [e25efea0] ieee80211_ioctl_giwscan+0x50/0x80 [mac80211]
[ 183.959840] [db633d70] [c04200f8] ioctl_standard_call+0x2ac/0x420
[ 183.961062] [db633de0] [c0420320] wext_handle_ioctl+0xb4/0x4b4
[ 183.962236] [db633e20] [c0341970] dev_ioctl+0x644/0x6cc
[ 183.963393] [db633ea0] [c0331ef0] sock_ioctl+0x258/0x27c
[ 183.964559] [db633ec0] [c0089494] do_ioctl+0x44/0xa8
[ 183.965715] [db633ee0] [c00898fc] vfs_ioctl+0x404/0x440
[ 183.966863] [db633f10] [c0089978] sys_ioctl+0x40/0x70
[ 183.967993] [db633f40] [c0012fac] ret_from_syscall+0x0/0x38
[ 183.969177] --- Exception: c01 at 0xfd56240
[ 183.970270] LR = 0xfdddd34
[ 183.985762] HW CONFIG: channel=11 freq=2462 phymode=3

--
Greetings Michael.

2007-07-27 12:38:38

by Jiri Benc

Subject: Re: mac80211: BUG sleeping function called from invalid context

On Fri, 27 Jul 2007 14:27:26 +0200, Michael Buesch wrote:
> [ 183.950972] BUG: sleeping function called from invalid context at mm/slab.c:3024
> [ 183.951305] in_atomic():1, irqs_disabled():0
> [ 183.952456] Call Trace:
> [ 183.953521] [db633cc0] [c0008978] show_stack+0x50/0x184 (unreliable)
> [ 183.954780] [db633ce0] [c002a164] __might_sleep+0xc0/0xd4
> [ 183.955982] [db633cf0] [c007862c] kmem_cache_alloc+0x34/0x118
> [ 183.957198] [db633d10] [e25fa20c] ieee80211_sta_scan_results+0x548/0x750 [mac80211]

Fix was posted in http://thread.gmane.org/gmane.linux.kernel.wireless.general/3939

Thanks,

Jiri

--
Jiri Benc
SUSE Labs