A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2312> ====================================================================== Reported By: jaime Assigned To: karsten ====================================================================== Project: ALSA - driver Issue ID: 2312 Category: USB - usb-usx2y Reproducibility: always Severity: crash Priority: normal Status: assigned Distribution: Debian Sid Kernel Version: 2.6.17 ====================================================================== Date Submitted: 07-29-2006 12:21 CEST Last Modified: 07-30-2006 17:00 CEST ====================================================================== Summary: Kernel oops using Tascm us-122 in RawUSB mode Description: jackd -d alsa -d hw:1,2 -S -P -n 2 -p 128 -r 44100 (run as root) gives kernel oops: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000030 printing eip: d09c154f *pde = 00000000 Oops: 0000 [#1] Modules linked in: ipv6 button ac battery dm_mod loop mousedev tsdev snd_usb_usx2y snd_usb_lib shpchp snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_rawmidi snd_seq_device snd_pcm snd_timer snd_hwdep snd pci_hotplug psmouse analog i2c_sis96x soundcore parport_pc parport serio_raw pcspkr floppy i2c_core gameport 8250_pnp snd_page_alloc evdev sis_agp agpgart rtc ext3 jbd ide_cd cdrom ide_disk sis5513 generic ide_core ohci_hcd ehci_hcd usbcore sis900 mii thermal processor fan CPU: 0 EIP: 0060:[<d09c154f>] Not tainted VLI EFLAGS: 00010286 (2.6.17-1-486 #1) EIP is at usX2Y_usbpcm_urbs_start+0xf/0x3f5 [snd_usb_usx2y] eax: 00000000 ebx: b162dde4 ecx: cffef300 edx: cf63a2a0 esi: cf7f7ea0 edi: 00000000 ebp: cf63a2a0 esp: ce885db4 ds: 007b es: 007b ss: 0068 Process jackd (pid: 3645, threadinfo=ce884000 task=cfca2a50) Stack: cf63a2a0 cbdf0960 00000000 00000022 d09c1337 0000ac44 b162dde4 ceced0c0 00000000 cfca2a50 b0122a8c ce885de0 ce885de0 b162dde4 cf7f7ea0 00000000 cf63a2a0 d09c19fb ce708c00 b162de88 cac62000 cf42e460 00000000 d09ac0e4 Call Trace: <d09c1337> usX2Y_rate_set+0x1bf/0x1f6 [snd_usb_usx2y] <b0122a8c> autoremove_wake_function+0x0/0x2d <d09c19fb> snd_usX2Y_usbpcm_prepare+0xc6/0x14b [snd_usb_usx2y] <d099c6d5> snd_pcm_do_prepare+0x9/0x19 [snd_pcm] <d099c324> snd_pcm_action_single+0x1d/0x40 [snd_pcm] <d099c3bb> snd_pcm_action_nonatomic+0x30/0x47 [snd_pcm] <d099eb70> snd_pcm_common_ioctl1+0x4cb/0xc54 [snd_pcm] <b01e956a> n_tty_receive_buf+0xbe8/0xc34 <d099d69d> snd_pcm_hw_constraints_complete+0xe8/0x157 [snd_pcm] <d099d6db> snd_pcm_hw_constraints_complete+0x126/0x157 [snd_pcm] <d099fe8b> snd_pcm_hw_constraint_minmax+0x24/0x28 [snd_pcm] <d099d704> snd_pcm_hw_constraints_complete+0x14f/0x157 [snd_pcm] <d099d890> snd_pcm_open+0x119/0x1bf [snd_pcm] <b011262a> default_wake_function+0x0/0xc <b01a5fba> prio_tree_insert+0x12c/0x1ec <b0136cf8> vma_prio_tree_insert+0x17/0x2a <d099f9b2> snd_pcm_playback_ioctl+0x0/0x1b [snd_pcm] <d099f955> snd_pcm_playback_ioctl1+0x32d/0x343 [snd_pcm] <b013b9f3> do_mmap_pgoff+0x4b9/0x5e6 <d099f9b2> snd_pcm_playback_ioctl +0x0/0x1b [snd_pcm] <b015312e> do_ioctl+0x16/0x42 <b015333d> vfs_ioctl+0x1e3/0x1f1 <b0153395> sys_ioctl+0x4a/0x61 <b0102977> syscall_call+0x7/0xb Code: 00 8d 83 d8 00 00 00 6a 00 b9 01 00 00 00 ba 03 00 00 00 e8 97 09 75 df 59 5b 5e c3 55 57 56 53 83 ec 34 89 04 24 89 c2 8b 40 04 <8b> 40 30 89 44 24 08 8b 0a 89 4c 24 0c 48 75 20 8b 81 c0 00 00 EIP: [<d09c154f>] usX2Y_usbpcm_urbs_start+0xf/0x3f5 [snd_usb_usx2y] SS:ESP 0068:ce885db4 Please note that I'm just using standard debian-repository kernels for the time being, so they're _not_ patched for rt-preempt. I didn't think that this would cause this oops, but I could be very wrong. BTW, the version of jack is 0.101.1, and I've already set nrpacks to 1. ====================================================================== ---------------------------------------------------------------------- jaime - 07-30-06 17:00 ---------------------------------------------------------------------- I've just managed to get 64studio (http://64studio.com/) up and running, and I've encountered a similar problem (it might be exactly the same problem) but I'm submitting more details as I'm now running a more recent version of the kernel/alsa: Kernel: 2.6.17 with RT preempt patches Alsa version: 1.0.11 "jackd -R -d alsa -d hw:1,2 -S -P -n 2 -p 128 -r 44100" gives: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000030 printing eip: e112cf30 *pde = 00000000 Oops: 0000 [#1] PREEMPT Modules linked in: button ac battery realtime commoncap ipv6 dm_mod snd_seq_dummy snd_seq_oss snd_seq_midi snd_seq_midi_event snd_seq ide_generic tsdev shpchp snd_usb_usx2y snd_usb_lib pci_hotplug snd_rawmidi snd_seq_device snd_hwdep snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc sis_agp psmouse pcspkr serio_raw parport_pc parport evdev floppy analog gameport ext3 jbd ide_cd cdrom ide_disk sis5513 generic ohci_hcd ide_core ehci_hcd sis900 mii thermal processor fan CPU: 0 EIP: 0060:[<e112cf30>] Not tainted VLI EFLAGS: 00010296 (2.6.17-2-multimedia-486 #1) EIP is at usX2Y_usbpcm_urbs_start+0x10/0x3ff [snd_usb_usx2y] eax: 00000000 ebx: 00000000 ecx: 00000000 edx: dfc5b720 esi: df97765c edi: df977718 ebp: dfdd25e0 esp: dbc8ddfc ds: 007b es: 007b ss: 0068 preempt: 00000001 Process jackd (pid: 4338, threadinfo=dbc8c000 task=dfe1ec70 stack_left=7624 worst_left=-1) Stack: de987de0 dfc5b720 0000ac44 df97765c de987de0 dc6fa0c0 e11312c2 de987e64 00000021 00000000 dfe1ec70 c01272d0 dbc8de2c dbc8de2c 00000000 df97765c df977718 dfdd25e0 e112d3f5 df68fee0 dada8c00 dfc5b720 df68fee0 00000000 Call Trace: [<c01272d0>] autoremove_wake_function+0x0/0x3a (48) [<e112d3f5>] snd_usX2Y_usbpcm_prepare+0xd6/0x159 [snd_usb_usx2y] (28) [<e11078b3>] snd_pcm_do_prepare+0xc/0x25 [snd_pcm] (32) [<e11073ee>] snd_pcm_action_single+0x1b/0x3e [snd_pcm] (12) [<e11086e3>] snd_pcm_action_nonatomic+0x3e/0x50 [snd_pcm] (28) [<e110a4a3>] snd_pcm_common_ioctl1+0x5a3/0x6b1 [snd_pcm] (16) [<c0147dd6>] page_add_file_rmap+0x17/0x1a (4) [<c0142ae3>] follow_page+0x8d/0x146 (28) [<c0142b37>] follow_page+0xe1/0x146 (12) [<c0144816>] get_user_pages+0x228/0x280 (28) [<c0144917>] make_pages_present+0xa9/0xc2 (48) [<e110ace8>] snd_pcm_playback_ioctl1+0x393/0x3a9 [snd_pcm] (24) [<c0161e80>] do_ioctl+0x1c/0x62 (36) [<c0162107>] vfs_ioctl+0x241/0x254 (28) [<c0162162>] sys_ioctl+0x48/0x62 (36) [<c0102b67>] syscall_call+0x7/0xb (40) Code: 81 b8 0a 02 00 00 07 80 74 0d ba 44 ac 00 00 89 c8 5b e9 8a ef ff ff 89 d0 5b c3 55 57 56 53 83 ec 38 89 44 24 04 89 c2 8b 40 04 <8b> 40 30 89 44 24 0c 8b 0a 89 4c 24 10 48 75 20 8b 81 f8 00 00 EIP: [<e112cf30>] usX2Y_usbpcm_urbs_start+0x10/0x3ff [snd_usb_usx2y] SS:ESP 0068:dbc8ddfc Issue History Date Modified Username Field Change ====================================================================== 07-29-06 12:21 jaime New Issue 07-29-06 12:21 jaime Distribution => Debian Sid 07-29-06 12:21 jaime Kernel Version => 2.6.17 07-30-06 17:00 jaime Note Added: 0011319 ====================================================================== ------------------------------------------------------------------------- Take Surveys. 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