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Date: Fri, 13 Jul 2007 13:05:43 +0100 From: "seventh guardian" <seventhguardian@...il.com> To: netdev@...r.kernel.org, linux-wireless@...r.kernel.org Subject: Re: d80211 deadlock with wpa_supplicant and rmmod On 7/12/07, Johannes Berg <johannes@...solutions.net> wrote: > On Wed, 2007-07-11 at 19:41 -0400, John W. Linville wrote: > > > > >I believe we have a deadlock in d80211. > > > > > > I have it too. But I'm using iwl3945 driver, in-kernel mac80211, and a > > > gentoo kernel (basically a patched vanilla-2.6.22.1). My machine is a > > > x86_64 core 2 duo. > > > > > > >The following triggers it on my 2way SMT machine with preempt. > > > > > > > >modprobe bcm43xx-d80211 > > > >add sta0 > > > >ifconfig sta0 up > > > >start wpa_supplicant on the interface > > > >rmmod bcm43xx-d80211 > > Sounds like the bug with the scheduled work locking. See the > "mac80211/bcm43xx deadlock" thread, there's a patch, report back if you > can/can not reproduce with the patch. Hello, sorry for the delay but I only managed to try it out today.. I've applied the patch and tortured the system as far as I could, and no hang at all :) I've read the thread and it apparently replaces one bad problem for a lesser one, so I understand if it's not applied.. But at least there is a place in the code to point as the culprit :) Thanks, Renato Caldas - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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