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Date: Fri, 4 Sep 2009 14:45:28 +0300 From: Tarkan Erimer <tarkan.erimer@...knet.net.tr> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: [BUG] Sound related problem with Linux-2.6.31-rc8-git1-rt9 When I ran a movie, I got these errors in dmesg. Also, sound began to skip too fastly. My audio device is: tarkane@...kane:~$ lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01) Tarkan Erimer [81001.954666] BUG: unable to handle kernel NULL pointer dereference at 00000000000000a8 [81001.954677] IP: [<ffffffffa010f4b5>] snd_pcm_period_elapsed+0x11/0x1ec [snd_pcm] [81001.954701] PGD 1a028067 PUD 1a022067 PMD 0 [81001.954708] Oops: 0000 [#1] PREEMPT SMP [81001.954713] last sysfs file: /sys/devices/pci0000:00/0000:00:1d.7/usb5/5-8/5-8:1.0/host5/target5:0:0/5:0:0:0/block/sdb/size [81001.954718] CPU 1 [81001.954721] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage nfs lockd fscache nfs_acl auth_rpcgss sunrpc xt_multiport iptable_filter ip_tables x_tables binfmt_misc bridge stp llc bnep xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 deflate ctr twofish twofish_common camellia serpent blowfish cast5 des_generic cbc aes_x86_64 aes_generic xcbc rmd160 sha256_generic sha1_generic crypto_null af_key xfs exportfs btrfs zlib_deflate crc32c libcrc32c snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer iTCO_wdt snd_seq_device iTCO_vendor_support snd soundcore snd_page_alloc psmouse serio_raw pcspkr usbhid ehci_hcd uhci_hcd tg3 floppy [81001.954806] Pid: 2180, comm: hd-audio0 Not tainted 2.6.31-rc8-git1 #4 HP Compaq dc7600 Small Form Factor [81001.954810] RIP: 0010:[<ffffffffa010f4b5>] [<ffffffffa010f4b5>] snd_pcm_period_elapsed+0x11/0x1ec [snd_pcm] [81001.954827] RSP: 0018:ffff88003a0cddd0 EFLAGS: 00010282 [81001.954831] RAX: 0000000000000000 RBX: ffff88003a1cf9e0 RCX: 0000000000000000 [81001.954834] RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000000 [81001.954837] RBP: 0000000000000004 R08: ffff88003a1cf9e0 R09: 00000000ffffffff [81001.954841] R10: 0000000000000013 R11: ffffffff81033a48 R12: ffff88003a49cc48 [81001.954844] R13: 0000000000000000 R14: ffff88003a49cc00 R15: ffffffffa014c092 [81001.954849] FS: 0000000000000000(0000) GS:ffff8800017f8000(0000) knlGS:0000000000000000 [81001.954853] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [81001.954856] CR2: 00000000000000a8 CR3: 000000001a01b000 CR4: 00000000000006a0 [81001.954860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [81001.954863] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [81001.954868] Process hd-audio0 (pid: 2180, threadinfo ffff88003a0cc000, task ffff88003f197750) [81001.954870] Stack: [81001.954872] 0000000000000000 ffff88003a1cf9e0 0000000000000004 ffff88003a49cc48 [81001.954878] <0> 0000000000000000 ffff88003a49cc00 ffffffffa014c092 ffffffffa014c11c [81001.954884] <0> ffff88003a0cdec8 ffffc9000260c100 ffff88003a49cdf0 ffff88003a49cdf8 [81001.954892] Call Trace: [81001.954905] [<ffffffffa014c092>] ? azx_irq_pending_work+0x0/0xbc [snd_hda_intel] [81001.954914] [<ffffffffa014c11c>] ? azx_irq_pending_work+0x8a/0xbc [snd_hda_intel] [81001.954923] [<ffffffff81051f35>] ? worker_thread+0x1cb/0x268 [81001.954928] [<ffffffff81056355>] ? autoremove_wake_function+0x0/0x2e [81001.954933] [<ffffffff81051d6a>] ? worker_thread+0x0/0x268 [81001.954938] [<ffffffff81055f9c>] ? kthread+0x8b/0x93 [81001.954944] [<ffffffff81011c5a>] ? child_rip+0xa/0x20 [81001.954949] [<ffffffff81055f11>] ? kthread+0x0/0x93 [81001.954953] [<ffffffff81011c50>] ? child_rip+0x0/0x20 [81001.954955] Code: 01 00 00 31 c9 ba 01 00 00 00 be 06 00 00 00 e8 5d 7c f2 e0 31 c9 89 c8 5f c3 41 57 41 56 41 55 41 54 55 53 48 83 ec 08 49 89 fd <4c> 8b bf a8 00 00 00 49 8b 87 b0 02 00 00 48 85 c0 74 02 ff d0 [81001.955011] RIP [<ffffffffa010f4b5>] snd_pcm_period_elapsed+0x11/0x1ec [snd_pcm] [81001.955026] RSP <ffff88003a0cddd0> [81001.955029] CR2: 00000000000000a8 [81001.955033] ---[ end trace 552f354de445b720 ]--- -- 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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