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Date: Tue, 07 Apr 2009 23:54:13 -0500 From: Larry Finger <Larry.Finger@...inger.net> To: Arjan van de Ven <arjan@...ux.intel.com> CC: LKML <linux-kernel@...r.kernel.org>, "Rafael J. Wysocki" <rjw@...k.pl>, wireless <linux-wireless@...r.kernel.org>, Rusty Russell <rusty@...tcorp.com.au> Subject: Regression in 2.6.30-rc1 since commit acae0515 - wireless broken The most recent pulls of the Linux-2.6 git tree has broken wireless. The problem was bisected with commit acae05156551fd7528fbb616271e672789388e3c, entitled "module: create a request_module_nowait()", indicated as the faulty change. This is seen with driver b43 on my system, and 2 reports for driver iwlagn: http://marc.info/?l=linux-wireless&m=123916157630571&w=2 and http://marc.info/?l=linux-wireless&m=123913015021457&w=2. For b43, the logged error messages are: phy0: Failed to initialize wep: -2 b43: probe of ssb0:0 failed with error -2 With this driver, module ssb is selected from the PCI ID. It then loads b43, which triggers the loading of rfkill, mac80211, cfg80211, led-class, and input-polldev. It appears that the nowait method is killing the chain somewhere. If I unload and reload b43, then all these modules load correctly and wireless works. If this commit is reverted, wireless works OK. I will be happy to try any patches to make request_module_nowait() work with wireless networking. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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