Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261187AbUJ3RWF (ORCPT ); Sat, 30 Oct 2004 13:22:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261218AbUJ3RWF (ORCPT ); Sat, 30 Oct 2004 13:22:05 -0400 Received: from av3-2-sn1.fre.skanova.net ([81.228.11.110]:36076 "EHLO av3-2-sn1.fre.skanova.net") by vger.kernel.org with ESMTP id S261187AbUJ3RV7 (ORCPT ); Sat, 30 Oct 2004 13:21:59 -0400 To: kraxel@bytesex.org Cc: linux-kernel list , Eyal Lebedinsky Subject: Re: 2.6.10-rc1 bttv oops in btcx_riscmem_free References: <41839BFC.1070302@eyal.emu.id.au> From: Peter Osterlund Date: 30 Oct 2004 19:22:00 +0200 In-Reply-To: <41839BFC.1070302@eyal.emu.id.au> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3532 Lines: 53 Eyal Lebedinsky writes: > Watching on Mythtv, I stopped watching on the client. at this point > the picture froze. Looking in dmesg I see this oops. The machine > quicly becomes unusable ('ps aux' hangs). > > I then applied the v4l patches off the list. Still the same problem. > > Unable to handle kernel paging request at virtual address 85525fe9 I have similar problems using 2.6.10-rc1-bk8. Often when I exit tvtime, I get "unable to handle kernel paging request" or "unable to handle kernel NULL pointer", see below. The previous kernel I used on this machine was 2.6.9-rc3-bk9, which does not have this problem. I can do a binary search to figure out when it broke if you think it will help. Oct 30 14:12:55 p4 kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000011 Oct 30 14:12:55 p4 kernel: printing eip: Oct 30 14:12:55 p4 kernel: c010a237 Oct 30 14:12:55 p4 kernel: *pde = 00000000 Oct 30 14:12:55 p4 kernel: Oops: 0000 [#1] Oct 30 14:12:55 p4 kernel: PREEMPT Oct 30 14:12:55 p4 kernel: Modules linked in: snd_pcm_oss tuner tda9887 msp3400 bttv video_buf firmware_class v4l2_common btcx_risc videodev snd_mixer_oss snd_emu10k1 snd_rawmidi snd_ac97_codec snd_pcm snd_timer snd_page_alloc snd_util_mem snd_hwdep snd soundcore radeon nfsd exportfs lockd parport_pc lp parport autofs4 sunrpc ipt_MASQUERADE iptable_nat ipt_LOG ipt_limit ipt_state ipt_REJECT iptable_filter ip_tables sd_mod dm_mod usb_storage uhci_hcd ehci_hcd rtc Oct 30 14:12:55 p4 kernel: CPU: 0 Oct 30 14:12:55 p4 kernel: EIP: 0060:[] Not tainted VLI Oct 30 14:12:55 p4 kernel: EFLAGS: 00210206 (2.6.10-rc1-bk8) Oct 30 14:12:55 p4 kernel: EIP is at dma_free_coherent+0x30/0x67 Oct 30 14:12:55 p4 kernel: eax: 00000000 ebx: e429d000 ecx: e429d000 edx: 00000000 Oct 30 14:12:55 p4 kernel: esi: 00000011 edi: e3a14f34 ebp: eac6a800 esp: de55bee4 Oct 30 14:12:55 p4 kernel: ds: 007b es: 007b ss: 0068 Oct 30 14:12:55 p4 kernel: Process tvtime (pid: 5018, threadinfo=de55a000 task=e19ac580) Oct 30 14:12:55 p4 kernel: Stack: e7b3d680 e3a14e80 f8a3203d e7b3d6c4 00000c38 e429d000 2429d000 e3a14ea4 Oct 30 14:12:55 p4 kernel: e7b3d880 f8d2fb35 e7b3d680 e3a14f34 00000000 00000000 e79e7720 ee3744bc Oct 30 14:12:55 p4 kernel: f8afbc55 e7b3d880 e3a14e80 00035000 eac6a800 de55a000 de55a000 e7861c80 Oct 30 14:12:55 p4 kernel: Call Trace: Oct 30 14:12:55 p4 kernel: [] btcx_riscmem_free+0x3d/0x84 [btcx_risc] Oct 30 14:12:55 p4 kernel: [] bttv_dma_free+0x74/0x9f [bttv] Oct 30 14:12:55 p4 kernel: [] videobuf_vm_close+0x97/0xc9 [video_buf] Oct 30 14:12:55 p4 kernel: [] remove_vm_struct+0x8e/0x97 Oct 30 14:12:55 p4 kernel: [] unmap_vma_list+0x1c/0x28 Oct 30 14:12:55 p4 kernel: [] do_munmap+0x142/0x17f Oct 30 14:12:55 p4 kernel: [] sys_munmap+0x44/0x64 Oct 30 14:12:55 p4 kernel: [] sysenter_past_esp+0x52/0x71 Oct 30 14:12:55 p4 kernel: Code: 44 24 0c 8b 54 24 10 8b 5c 24 14 85 c0 74 06 8b b0 b8 00 00 00 8d 42 ff ba ff ff ff ff c1 e8 0b 83 c2 01 d1 e8 75 f9 85 f6 74 13 <8b> 0e 39 cb 72 0d 8b 46 08 c1 e0 0c 8d 04 08 39 c3 72 09 89 d8 -- Peter Osterlund - petero2@telia.com http://w1.894.telia.com/~u89404340 - 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/