2007-10-13 19:41:56

by Dmitry Torokhov

[permalink] [raw]
Subject: Locking bug with p54 in mainline

Hi,

Just got the following after compiling a fresh pull from mainline
(head is 8d8fe64237646fdd2c2de2722ec4189a5999119d). Otherwise
everything works fine.

[ 44.718364] BUG: sleeping function called from invalid context at mm/slab.c:3027
[ 44.718374] in_atomic():1, irqs_disabled():0
[ 44.718381] 1 lock held by prism54pci/2697:
[ 44.718385] #0: (_xmit_IEEE80211){-...}, at: [<e088ecff>] ieee80211_sta_start_scan+0x18e/0x202 [mac80211]
[ 44.718553] [<c01045d6>] show_trace_log_lvl+0x1a/0x2f
[ 44.718569] [<c010515b>] show_trace+0x12/0x14
[ 44.718578] [<c01051a6>] dump_stack+0x15/0x17
[ 44.718586] [<c01148fe>] __might_sleep+0xcc/0xd3
[ 44.718602] [<c015e707>] __kmalloc+0x52/0xd5
[ 44.718616] [<e083c56e>] p54_set_filter+0x33/0x105 [p54common]
[ 44.718654] [<e083c6b8>] p54_configure_filter+0x78/0x7f [p54common]
[ 44.718665] [<e088ed3b>] ieee80211_sta_start_scan+0x1ca/0x202 [mac80211]
[ 44.718690] [<e0892083>] ieee80211_sta_work+0xc32/0xf50 [mac80211]
[ 44.718715] [<c0125b14>] run_workqueue+0x7c/0x12d
[ 44.718729] [<c0126355>] worker_thread+0xb7/0xc2
[ 44.718844] [<c01288f8>] kthread+0x39/0x61
[ 44.718854] [<c010429b>] kernel_thread_helper+0x7/0x10
[ 44.718863] =======================

Thanks.

--
Dmitry