linux-kernel - Fwd: mysterious udev segfault

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Date:	Thu, 4 Dec 2014 10:55:11 +0000
From:	"Rogelio M. Serrano Jr." <rogelios664@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Fwd: mysterious udev segfault

---------- Forwarded message ----------
From: Rogelio M. Serrano Jr. <rogelios664@...il.com>
Date: Thu, Dec 4, 2014 at 10:53 AM
Subject: Re: mysterious udev segfault
To: Mathias Krause <minipli@...glemail.com>


On Thu, Dec 4, 2014 at 8:13 AM, Mathias Krause <minipli@...glemail.com> wrote:
>
<snipped...>
>
> Probably not. But I don't think the grsec patch changes anything
> related to firmware loading.
> Upstream added an option to disable firmware loading via udev
> (CONFIG_FW_LOADER_USER_HELPER_FALLBACK). Maybe that's related.
> Again, logs may help here.
>
>
> Regards,
> Mathias

both loadable kernel modules and loader user helper fallback are off

Dec  3 10:18:02 (none) klogd: [    1.789031] iwl4965: Intel(R)
Wireless WiFi 4965 driver for Linux, in-tree:
Dec  3 10:18:02 (none) klogd: [    1.790767] iwl4965: Copyright(c)
2003-2011 Intel Corporation
Dec  3 10:18:02 (none) klogd: [    1.792484] iwl4965 0000:03:00.0:
can't disable ASPM; OS doesn't have ASPM control
Dec  3 10:18:02 (none) klogd: [    1.794421] iwl4965 0000:03:00.0:
Detected Intel(R) Wireless WiFi Link 4965AGN, REV=0x4
Dec  3 10:18:02 (none) klogd: [    1.839823] iwl4965 0000:03:00.0:
device EEPROM VER=0x36, CALIB=0x5
Dec  3 10:18:02 (none) klogd: [    1.841597] iwl4965 0000:03:00.0:
Tunable channels: 11 802.11bg, 13 802.11a channels
Dec  3 10:18:02 (none) klogd: [    1.843495] iwl4965 0000:03:00.0: irq
31 for MSI/MSI-X
Dec  3 10:18:02 (none) klogd: [    1.843839] iwl4965 0000:03:00.0:
Direct firmware load for iwlwifi-4965-2.ucode failed with error -2
Dec  3 10:18:02 (none) klogd: [    1.845598] iwl4965 0000:03:00.0:
request for firmware file 'iwlwifi-4965-2.ucode' failed.
Dec  3 10:18:02 (none) klogd: [    1.847392] iwl4965 0000:03:00.0: no
suitable firmware found!

turning loadable kernel modules back on works
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