Date: Sat, 31 Oct 2009 23:40:03 GMT From: Benjamin Kaduk <kaduk@MIT.EDU> To: freebsd-net@FreeBSD.org Subject: Re: kern/140036: [iwn] [lor] lock order reversal with iwn0_com_lock and iwn0 softc lock Message-ID: <200910312340.n9VNe372022341@freefall.freebsd.org>
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The following reply was made to PR kern/140036; it has been noted by GNATS. From: Benjamin Kaduk <kaduk@MIT.EDU> To: Bernhard Schmidt <bschmidt@techwires.net> Cc: bug-followup@freebsd.org Subject: Re: kern/140036: [iwn] [lor] lock order reversal with iwn0_com_lock and iwn0 softc lock Date: Sat, 31 Oct 2009 19:24:59 -0400 (EDT) Indeed, I think I saw a lockup a couple days ago, possibly when my card had dissociated and was trying to reassociate. Thanks for looking into this, -Ben On Thu, 29 Oct 2009, Bernhard Schmidt wrote: > Hi, > > Removing the IWN_LOCK(sc) leads to races when calling iwn_cmd(). It's better > to drop the IEEE80211_LOCK(ic). I do have a patch in test which hopefully will > hit the tree soon. > > -- > Bernhard >
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