From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755412AbYHHHbp (ORCPT ); Fri, 8 Aug 2008 03:31:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753290AbYHHHbh (ORCPT ); Fri, 8 Aug 2008 03:31:37 -0400 Received: from main.gmane.org ([80.91.229.2]:52220 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753269AbYHHHbg (ORCPT ); Fri, 8 Aug 2008 03:31:36 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Walter Franzini Subject: BUG: unable to handle kernel NULL pointer dereference at 00000010 Date: Fri, 08 Aug 2008 09:31:19 +0200 Message-ID: <86wsis0xq0.fsf@acer.nord-com.it> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 217.141.18.130 X-Archive: encrypt Mail-Copy-To: never User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux) Cancel-Lock: sha1:UVKweSDaqtQgpv7EH+GjBPewF7g= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Hi, I have the following trace with 2.6.26.1, it seems to be related to a wireless usb adapter that works with 2.6.25.x My "feeling" is that such usb adapter works well with 2.6.25.x and does not work with 2.6.26.x. ------------------------------------------------------------------------ phy1 -> rt2500usb_init_eeprom: Error - Invalid RT chipset detected. phy1 -> rt2x00lib_probe_dev: Error - Failed to allocate device. BUG: unable to handle kernel NULL pointer dereference at 00000010 IP: [] flush_workqueue+0xa/0x3f *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: rt2500usb(+) rt2x00usb rt2x00lib usbhid hid xt_tcpudp nf_conntrack_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables ppdev lp fuse sbp2 acpi_cpufreq freq_table arc4 ecb crypto_blkcipher pcmcia joydev snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm iwl3945 snd_timer iTCO_wdt intel_agp firmware_class snd yenta_socket rsrc_nonstatic sg i2c_i801 agpgart mac80211 container soundcore wmi serio_raw parport_pc pcspkr pcmcia_core irda ac evdev battery button parport psmouse i2c_core cfg80211 snd_page_alloc crc_ccitt sr_mod cdrom ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod sd_mod ata_piix ata_generic ohci1394 libata scsi_mod ieee1394 ehci_hcd uhci_hcd usbcore e1000 dock thermal processor fan Pid: 4312, comm: modprobe Not tainted (2.6.26.1-1 #1) EIP: 0060:[] EFLAGS: 00010246 CPU: 0 EIP is at flush_workqueue+0xa/0x3f EAX: 00000000 EBX: f7ea1020 ECX: f7d4c000 EDX: 00000000 ESI: c035e7ec EDI: 00000000 EBP: f7e0a200 ESP: f7d4dea8 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process modprobe (pid: 4312, ti=f7d4c000 task=f7e86730 task.ti=f7d4c000) Stack: f7ea1020 f7ea1020 f7ea01a0 f8cb81ee ffffffed f8cb8b65 f7ea1020 00000282 f8c93091 000080d0 f7ea1020 f8cc92e0 f7ea1020 00000000 f7ea01a0 f7e0a200 f8c9389c f79e2400 f7e0a200 f8ccaa2c 00000000 f8cca7e0 f8860880 f79e2400 Call Trace: [] rt2x00lib_remove_dev+0x1f/0x40 [rt2x00lib] [] rt2x00lib_probe_dev+0x2f5/0x311 [rt2x00lib] [] rt2x00usb_alloc_reg+0x46/0x7e [rt2x00usb] [] rt2x00usb_probe+0xc6/0x101 [rt2x00usb] [] usb_probe_interface+0xac/0xdd [usbcore] [] __driver_attach+0x0/0x55 [] driver_probe_device+0xb5/0x12c [] __driver_attach+0x37/0x55 [] bus_for_each_dev+0x34/0x56 [] driver_attach+0x11/0x13 [] __driver_attach+0x0/0x55 [] bus_add_driver+0x8a/0x1a7 [] kset_find_obj+0x4f/0x56 [] driver_register+0x6d/0xc1 [] usb_register_driver+0x5d/0xb4 [usbcore] [] sys_init_module+0x84/0x173 [] sysenter_past_esp+0x6a/0x91 [] quirk_e100_interrupt+0x33/0x154 ======================= Code: 00 74 14 e8 90 ff ff ff 8b 43 20 e8 6e 24 00 00 c7 43 20 00 00 00 00 5b c3 83 c0 10 e9 0d ac fe ff 57 89 c7 56 be ec e7 35 c0 53 <83> 78 10 00 b8 f0 e7 35 c0 0f 44 f0 89 f0 e8 ca f8 09 00 eb 15 EIP: [] flush_workqueue+0xa/0x3f SS:ESP 0068:f7d4dea8 ---[ end trace 009005218430c5d0 ]--- ------------------------------------------------------------------------ Thanks. -- Walter Franzini http://aegis.stepbuild.org/ PGP Public key ID: 1024D/CB3FEB43 Key fingerprint : FA26 C33B CAFF 7848 EFEB 7327 96AA 2D57 CB3F EB43 Key server : http://www.keyserver.net --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIm/ZLlqotV8s/60MRAtu3AKCRrB3HC9Z28PYf0TGQi3r/QJh9/gCg2Gms qU3f4KMHaLgQCr3rgqobqT4= =rkkV -----END PGP SIGNATURE----- --=-=-=--