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Re: 2.6.32-rc0-git: oops in wireless, iwl3945 related?

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On Thu, 2009-10-01 at 23:16 +0200, Johannes Berg wrote:

> > wlan0: Selected IBSS BSSID 02:18:41:de:3f:02 based on configured SSID
> > wlan0: Trigger new scan to find an IBSS to join
> > wlan0: Trigger new scan to find an IBSS to join
> > wlan0: Creating new IBSS network, BSSID f2:d3:80:82:ed:6a
> > wlan0: Creating new IBSS network, BSSID 52:17:bf:45:d6:9d
> > skb_over_panic: text:c07b4113 len:130 put:36 head:e4c3edf0
> 
> This entire log is very odd ... can you reproduce this easily? printk
> timestamps would be useful.

Kinda looks like a race condition, but it's rather odd. I think there's
a race condition, so I'm going to submit this patch regardless after
some testing, but if you want please try the patch below.

johannes

---
 net/mac80211/ibss.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- wireless-testing.orig/net/mac80211/ibss.c	2009-10-01 23:21:11.000000000 +0200
+++ wireless-testing/net/mac80211/ibss.c	2009-10-01 23:22:24.000000000 +0200
@@ -831,7 +831,7 @@ void ieee80211_ibss_notify_scan_complete
 		if (!sdata->u.ibss.ssid_len)
 			continue;
 		sdata->u.ibss.last_scan_completed = jiffies;
-		ieee80211_sta_find_ibss(sdata);
+		mod_timer(&ifibss->timer, 0);
 	}
 	mutex_unlock(&local->iflist_mtx);
 }


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