From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754579AbcDDGzd (ORCPT ); Mon, 4 Apr 2016 02:55:33 -0400 Received: from nm4-vm5.access.bullet.mail.bf1.yahoo.com ([216.109.114.116]:46295 "EHLO nm4-vm5.access.bullet.mail.bf1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750979AbcDDGzc (ORCPT ); Mon, 4 Apr 2016 02:55:32 -0400 X-Greylist: delayed 351 seconds by postgrey-1.27 at vger.kernel.org; Mon, 04 Apr 2016 02:55:32 EDT X-Yahoo-Newman-Id: 635025.64509.bm@smtp113.sbc.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: xBqVOZgVM1mbs7Sm2gVGnCjgFzf3wwRFpKWzrq.zfpAzcAN Qftic4QvqCWApJQ.SJEKW2oVahyjzUOIFwmu6kdRKKi0pEOwmytJCXOXiEee PC5rC6u_7pZRo5_7wiaz382a4BEPr2NhoYGSqnSR_vO1Kr95L0BC20dmwDsj ll7JDTigh2D9pSC3SeNPVvejI4hLHhftSX6ixkq1OKXvFtQ6Q4zfDRRfP.Ct bTc20uHusVToRVNZu3hV0nsQj0NLGbZh98l83qXGNS9Y7TXBeAd8ph8l..N1 CTs2Qj_dSlRY3BVQicT6HVv5f95FW30uBdxMDzSDNGZbocYXM7qh08FDSpgZ DVTnTrlGPi3Qcr14O5L9PSXE_KRNNf2SVHTMprZL.17VcJCXzxTE2bpci8Jb KYBwP4U.lxZPu8vEDoB_wuMFqKlS5UW4Sj4cG_JtOAdrv8.v_x8ONRpo7WLn IPFXK3VakyNmoonGM.uITdxkhDi6lFufxFNXw1rOpXLSOU5imB0h_pO3esJr bFHCFVnU646x1S6MH2YqjXaT_ZTjFOuJQ_uMGYhwy2jpHLSTyWg-- X-Yahoo-SMTP: rZzhDImswBA_40COIyZI42.8nAz5YXic.zo1v550XQVtX7k- From: Shawn Starr To: Linux Kernel list Subject: [4.6-rc1/rc2][snd_usb_audio] regression: BUG usb_audio_probe+0x2ca/0x9a0 Date: Mon, 04 Apr 2016 02:49:34 -0400 Message-ID: <1515547.tStFtSZqRC@segfault> Organization: sh0n.net User-Agent: KMail/4.14.10 (Linux/4.6.0-0.rc0.git25.2.fc25.x86_64; KDE/4.14.18; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello kernel devs, USB audio devices broke: [ 13.873279] BUG: unable to handle kernel NULL pointer dereference at 0000000000000014 [ 13.874701] IP: [] usb_audio_probe+0x2ca/0x9a0 [snd_usb_audio] [ 13.876050] *PGD 0 * [ 13.876942] Oops*: 0000 [#1] SMP * [ 13.877896] Modules linked in*: snd_usb_audio(+) mac80211 videobuf2_vmalloc vfat irqbypass videobuf2_memops fat crct10dif_pclmul videob* [ 13.884695] * tpm soundcore i2c_designware_core i2c_i801 wmi dell_rbtn rfkill dell_smo8800 nfsd auth_rpcgss nfs_acl lockd grace sunrpc * [ 13.888261] CPU*: 7 PID: 628 Comm: systemd-udevd Not tainted 4.6.0-rc2 #1* [ 13.889507] Hardware name*: Dell Inc. Precision M6800/05NG6V, BIOS A16 12/01/2015* [ 13.890794] task*: ffff8807fdc61d80 ti: ffff8808074d4000 task.ti: ffff8808074d4000* [ 13.892094] RIP*: 0010:[] [] usb_audio_probe+0x2ca/0x9a0 [snd_usb_audio]* [ 13.893543] RSP*: 0018:ffff8808074d7a80 EFLAGS: 00010246* [ 13.894769] RAX*: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000* [ 13.896051] RDX*: ffff8808082b2b80 RSI: 0000000000000000 RDI: ffff880807ec6880* [ 13.897347] RBP*: ffff8808074d7af8 R08: 000000000001a6c0 R09: ffffffff813cf33c* [ 13.898616] R10*: ffffea001ff91a00 R11: ffff8807fe2b7871 R12: ffff8807fdd3a900* [ 13.899907] R13*: 0000000000000002 R14: ffff8807fdd3a954 R15: ffff88080748fd12* [ 13.901205] FS*: 00007fba7d6ae8c0(0000) GS:ffff88082ddc0000(0000) knlGS:0000000000000000* [ 13.902827] CS*: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033* [ 13.904091] CR2*: 0000000000000014 CR3: 0000000807e7f000 CR4: 00000000001406e0* [ 13.905398] *Stack:* [ 13.906448] * ffff8807fedaacc8 0000000000000000 ffff8807feecac00 ffff8807fedaacc8* [ 13.907784] * 0000000000000246 ffff8808074d7ab8 ffff8807ff1d3000 3634304253550282* [ 13.909115] * ff00343461303a64 00000000e52cf258 ffff8807fecd5098 ffff8807fecd5000* [ 13.910710] *Call Trace:* [ 13.912339] * [] usb_probe_interface+0x1bd/0x300* [ 13.913581] * [] driver_probe_device+0x22c/0x440* [ 13.914838] * [] __driver_attach+0xd1/0xf0* [ 13.916099] * [] ? driver_probe_device+0x440/0x440* [ 13.917396] * [] bus_for_each_dev+0x6c/0xc0* [ 13.918660] * [] driver_attach+0x1e/0x20* [ 13.919822] * [] bus_add_driver+0x1eb/0x280* [ 13.921074] * [] driver_register+0x60/0xe0* [ 13.921085] * [] usb_register_driver+0x84/0x140* [ 13.921086] * [] ? 0xffffffffc086d000* [ 13.921091] * [] usb_audio_driver_init+0x1e/0x1000 [snd_usb_audio]* [ 13.921095] * [] do_one_initcall+0xb3/0x200* [ 13.921096] * [] ? __vunmap+0x81/0xd0* [ 13.921098] * [] ? kmem_cache_alloc_trace+0x189/0x1f0* [ 13.921099] * [] ? kfree+0x15b/0x170* [ 13.921101] * [] ? do_init_module+0x27/0x1d7* [ 13.921102] * [] do_init_module+0x5f/0x1d7* [ 13.921104] * [] load_module+0x20c4/0x26f0* [ 13.921105] * [] ? __symbol_put+0x60/0x60* [ 13.921107] * [] ? vfs_read+0x114/0x130* [ 13.921108] * [] SYSC_finit_module+0xe6/0x120* [ 13.921109] * [] SyS_finit_module+0xe/0x10* [ 13.921111] * [] entry_SYSCALL_64_fastpath+0x1a/0xa4* [ 13.921119] Code*: 02 00 8b 75 ac 4c 89 e7 e8 94 75 00 00 85 c0 89 c1 0f 88 ae 00 00 00 49 8b 7c 24 10 e8 00 6f c2 ff 85 c0 89 c1 0f 88* [ 13.921123] RIP [] usb_audio_probe+0x2ca/0x9a0 [snd_usb_audio] [ 13.921124] * RSP * [ 13.921124] CR2*: 0000000000000014* [ 13.921132] *---[ end trace 29d92678e4d33f46 ]---* Thanks, Shawn