Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753073AbaLUAOv (ORCPT ); Sat, 20 Dec 2014 19:14:51 -0500 Received: from nm16-vm4.access.bullet.mail.gq1.yahoo.com ([216.39.63.104]:38044 "EHLO nm16-vm4.access.bullet.mail.gq1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752365AbaLUAOt convert rfc822-to-8bit (ORCPT ); Sat, 20 Dec 2014 19:14:49 -0500 X-Greylist: delayed 387 seconds by postgrey-1.27 at vger.kernel.org; Sat, 20 Dec 2014 19:14:49 EST DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s2048; d=pacbell.net; b=PHaHmAM0UQGGAlTmbRmCFeMaIplYgynqr5Fea7FrkTqC676xXT9O/RTSjdEYSAXC11RI5/IXRsraA0Hvmoe9p1JH2m/dr6uKKEOrvZ1vSthv/EfShy32bHMlqcR0++EJkF0xJ+YkfLZj8ripOIHNcT/nx1EJiNs2CiGHWgvYOejm0z+YgVzSA24bHOh+vIqL0euei3GS5IGHuRPJ5CETgyABD7ELn7R/AR0SCpuGJEcigf2boiLXyDybrlmCg42WM3Tlzmg8SedH+QqB6N3yQMZhcsLnQQvsqKtJFxja1Kgr3JStHCwt9BBI66sr37PASgsbNky1HuQdWox+BCyo0A==; X-Yahoo-Newman-Id: 901561.98969.bm@smtp112.sbc.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: uQeq4ZMVM1le_fB5Ji_fbkWLk2c.Ig6sHIL5k2fQ2ZpQOBW 3A6KAp4aet6nlTa_j7ad4N8UklmWP7Dr_d6RKJOPmZPTniNyfKgqrWcJnm2e CF9lpJG9nCBO79xvqCHhiVE.tqJxG9y3YtGZWPLYT3xoCH.EBlb6zf6IqKl8 .HxQKNFVGu_bUseK_rSydUOnEpZLQ_u.DDe6t519Yt2WgsgbWmKp7GObcHmQ Fg8GKUSZ53gI5XECNohy6UrO_XV5q7QQKgVc87sIUDDxnOZCZPWfvlofnnug chnECuxoVHfkEWRMAcHjtxRWUvOYhoAxRBWeFdg9EeNdCwibldKzQvpfcN0K ARPMdmy5HNXd6YsE2isPWU38hYqOv.xDXFavQrzPBRBQIS5U7pE93N0QCwfj aaI8GxatB_RsoddzSZwgoNSXIe8fod6owE7c9dE4tdOwtf0vIqyoe40Si0Qr 5j.ZEk_VE2bKy34IOfpbu3hs7Ma3pW8icupLeEQm6Pi9Vq645Ls6e0SnZNKv WPRakqgfxYzSCLkQrOATLrog1l3wB1_pvSQQhSMb6rmEO6wftMAySB44ev3M ZulCnUagZA3Ir4o64TaG7SDJWZ._flDvS5b0F1BYSquhA X-Yahoo-SMTP: x3UJDw2swBBmiVP7941KaiyaoilgwM.0jf7QxQtKIw-- Message-ID: <54960F74.1050608@pacbell.net> Date: Sat, 20 Dec 2014 16:08:20 -0800 From: Richard Reply-To: richjunk@pacbell.net User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Kernel 3.17.x Attaching Keyspan 4-Port Serial to USB Adapter Causes Kernel Panic Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On a new Gentoo based system with Kernel.org Kernels 3.17.4 to 3.17.7 when I physically plug the Keyspan 4-Port Serial to USB adapter into a usb port my system freezes with a "unable to handle kernel NULL pointer deference" message. My old system (also Gentoo based with Kernel.org 3.17.4) does not have this issue. Both systems are using the USB_SERIAL_KEYSPAN_USA49W driver module. I tried booting into single user mode, using modprobe to load USB_SERIAL_KEYSPAN_USA49W. lsmod shows the driver. When I pluged the device in I receive the system freeze. Below is what I copied off the console ... BUG: Unable to handle kernel NULL pointer deference at 000...8c IP: [] usa49_instat_callback+0x4d/0xb0[keyspan] PGD 1037faa067 PUD 1038301067 PMD 0 Oops: 0002 [#1] SMP Modules linked in: keyspan ezusb usbserial hid_generic ... ... Hardware name: ASUS All Series/X99-A, BIOS 1004 10/16/2014 If I can provide any more information, please ask. Please CC my e-mail address with any replies, I do not subscribe to the linux kernel list: richjunk@pacbell.net Richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/