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Date: Thu, 30 Aug 2007 07:58:09 +1200
From: Andrew Thompson <thompsa@FreeBSD.org>
To: haro@kgt.co.jp
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Cc: freebsd-current@freebsd.org
Subject: Re: Panic with iwi
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On Thu, Aug 30, 2007 at 04:35:19AM +0900, haro@kgt.co.jp wrote:
> Hi all,
> 
> I'm currently on travel and staying at Parc 55 Hotel in San Francisco. ;-)
> Anyway, whenevere I try to connect hotel's wifi network, I get the following
> panic with iwi, rev 1.55.
> Back traces where hand written down, so expcect typo.
> 
> Panic: mutex iwi0 not owned at /usr/src/sys/modules/iwi/../../dev/iwi/if_iwi.c:960
> 
> panic(..)
> _mtx_assert(c368f400,1,c0996e4a,3c0,c07aa498,...) at _mtx_assert+0x8d
> iwi_newstate(c368e004,2,c0,c3a82122,0,...) at iwi_newstate+0x40
> ieee80211_sta_join1(c3a820000,c3a5,bb2e,c3a5bb3f,1) at ieee80211_sta_join1+0x1a9
> ieee80211_sta_join(c368e004,c3a5bb00,c07e5c76,434,0,c086594000,c367e004,c396a600,e295d54,c391ee00) at ieee80211_sta_join+0x1d4
> sta_age(c3655800,db312c84,c0645227,c368e004,db312c68,...) at sta_age+0x3ca
> ieee80211_scan_timeout(c368e004,db312c68,80246,c0863ee4,db312c84,...) at ieee80211_scan_timeout+0x1c
> ieee80211_node_timeout(c368e004,0,c07d6354,ef,0,...) at ieee80211_node_timeout+0x17
> softclock(0,0,c07d1d8a,471,c356e064,...) at softclock+0x299
> ithread_loop(c35704e0,db312d38,c07d1b08,315,c3571559,..) at ithread_loop+0xb5
> fork_exit(c056de20, c35704e0, db312d38) at fork_exit+0xb8
> fork_trampline() at fork_trampline+0x8
> --- trap 0, eip = 0, esp = 0xdb312d70, ebp = 0 ---
 
The IWI_LOCK_ASSERT() on line 960 is unnecessary and should be removed. 


Andrew