From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753347Ab3LTO57 (ORCPT ); Fri, 20 Dec 2013 09:57:59 -0500 Received: from imp01.mtu.ru ([62.5.255.10]:46808 "EHLO imp01.mtu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751748Ab3LTO55 (ORCPT ); Fri, 20 Dec 2013 09:57:57 -0500 X-Spam-Flag: NO Message-ID: <52B45AEB.2060508@pavlinux.ru> Date: Fri, 20 Dec 2013 18:57:47 +0400 From: Pavel Vasilyev Reply-To: pavel@pavlinux.ru Organization: Pavlinux. Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131118 Thunderbird/17.0.11 MIME-Version: 1.0 To: Sebastian Andrzej Siewior CC: RT , LKML Subject: Re: 3.12.5 CRASH/FREEZE References: <52A9CC77.20904@linaro.org> <52AA1CC0.30307@pavlinux.ru> <20131220141008.GE10249@linutronix.de> In-Reply-To: <20131220141008.GE10249@linutronix.de> X-Enigmail-Version: 1.6 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="AEubbuL1t5eJKN8bmIC5kjnp2jJE3aXDS" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --AEubbuL1t5eJKN8bmIC5kjnp2jJE3aXDS Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 20.12.2013 18:10, Sebastian Andrzej Siewior =D0=BF=D0=B8=D1=88=D0=B5=D1=82= : > * Pavel Vasilyev | 2013-12-13 00:29:52 [+0400]: >=20 >> On startup, if USB webcam (uvcvideo) attached in usb-hole >> >> NMI backtrace for cpu 0 >> CPU: 0 PID: 35 Comm: irq/43-xhci_hcd Not tainted 3.12.5-plx #6 >=20 >> [] xhci_queue_isoc_tx_prepare+0x39c/0x950 >> [] xhci_urb_enqueue+0x22f/0x540 >> [] usb_hcd_submit_urb+0x65/0x280 >> [] usb_submit_urb+0x170/0x3a0 >> [] uvc_video_complete+0xb8/0xd0 >> [] __usb_hcd_giveback_urb+0x45/0xa0 >> [] usb_hcd_giveback_urb+0x38/0xf0 >> [] handle_tx_event+0x3af/0xda0 >> [] xhci_irq+0x1a2/0x6c0 >> [] xhci_msi_irq+0xa/0x10 >> [] irq_forced_thread_fn+0x21/0x70 >> [] irq_thread+0x106/0x220 >> [] kthread+0xd0/0xe0 >> [] ret_from_kernel_thread+0x1b/0x28 >=20 > This looks like uvc is resubmitting the URB on completion. Nothing > unusual. Howver it seems that then CPU gets stuck in > xhci_queue_isoc_tx_prepare() for some reason. Could you try map c13aa59= c Same bug if attach to ehci hub. ksoftird/0 process of loading the CPU upto 100% Sometimes process irq17/0 - ehci_hcd or xhci_hcd. After taking the camera out of the socket, the load does not fall, keyboard and console blocked > to the source line? Something like > addr2lin -e xhci-hcd.ko -i c13aa59c >=20 > should do the trick but of the module of this trace. > What does the -plx stand for in localversion? Do you have any custom > patches on your kernel? No patches, just local flag. --=20 Pavel. --AEubbuL1t5eJKN8bmIC5kjnp2jJE3aXDS Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIcBAEBCgAGBQJStFrrAAoJEPtok08Dny2hCGIQAMPwpx5II+muOaQzkVjBins5 c6c0DW+PsODwIqdMFzuYllk0apxJgm2o8P9v5diU3AulZKxd8PvspcrB4yGR9nSe hRj78ZQpU0rvydXesnmn00scs8ixE2X43HRAfHREzyWqU09q7BnUUfxeLjYaDBsY XrcwNQSVRWKi/D5ZnvdZJKfkl2PaTZ5iYcganUsL+9At6alPJh+YQWEKjsxKCiCu Rd7p2Hmh0y0wE1C8JUpwdx+XtfHSBA5bDyuZt9WXOx+IrvjjabzNGAHuMf3M81Fc aNsmEa0br/YD/dDKqL3a05wFj36reZqkU63/zYNryVBiww0SYYadvHbI8PGiH1Ic ThoOd77J6im/ZwVe1eYwjkAN+JHYZqkGEEN6jR9zPfGlBUQAyOlsqjtBIb0U77sZ OHptMTUajjm6V/7RQ6B9lxyELKDOm7AyXLZGyPGZim8RhnZ1vtzeLzU4pqHJ3HvH tTWIeIyr+buCky45uccJV3+HOtGFCdXGQcjM4On5cm2N/sDdtX0fTUCql1naHTEt v2hw8mroiZh6fQczBi9ywXRIaidqCBm/el0KS/BYYiMshf2uVhP9IHe2f/tZIVWN NZ/wT0IJmS7k5Bzl2uKLWCaPnHCPur5VtmW8lhfD1o5JgVNAKwS7BzKz6o0G4OMW fAD7yCzDPPUY+GZh8Wpf =vgL6 -----END PGP SIGNATURE----- --AEubbuL1t5eJKN8bmIC5kjnp2jJE3aXDS--