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Message-ID: <1284474988.3704.10.camel@jlt3.sipsolutions.net> Date: Tue, 14 Sep 2010 16:36:28 +0200 From: Johannes Berg <johannes@...solutions.net> To: "Michael S. Tsirkin" <mst@...hat.com> Cc: linux-kernel@...r.kernel.org, "John W. Linville" <linville@...driver.com>, "David S. Miller" <davem@...emloft.net>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, Reinette Chatre <reinette.chatre@...el.com>, Wey-Yi Guy <wey-yi.w.guy@...el.com>, Intel Linux Wireless <ilw@...ux.intel.com>, Stanislaw Gruszka <sgruszka@...hat.com> Subject: Re: 2.6.36-rc4/iwl: warning triggered in net/mac80211/scan.c:266 On Tue, 2010-09-14 at 16:28 +0200, Michael S. Tsirkin wrote: > I am running 2.6.36-rc4 on T60 with an iwlagn wireless card: > 03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection > > I was compiling a large file which stressed the box heavily, and the > following warning in net/mac80211/scan.c triggered: > > /* > * It's ok to abort a not-yet-running scan (that > * we have one at all will be verified by checking > * local->scan_req next), but not to complete it > * successfully. > */ > if (WARN_ON(!local->scanning && !aborted)) > aborted = true; > > dmesg below: > > [84379.361297] ------------[ cut here ]------------ > [84379.361307] WARNING: at net/mac80211/scan.c:266 ieee80211_scan_completed+0x43/0x17f() > Should this happen? Does anyone care? > I am not sure how reproducible this is. No, it shouldn't happen. But there are various races in iwlwifi that can cause this. Stanislaw has fixed them recently, but it's a fairly large patchset. I'm not sure, but I don't think this is really new in .36. johannes -- 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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