Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752866AbaFGIQR (ORCPT ); Sat, 7 Jun 2014 04:16:17 -0400 Received: from gate.crashing.org ([63.228.1.57]:53537 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752764AbaFGIQN (ORCPT ); Sat, 7 Jun 2014 04:16:13 -0400 Message-ID: <1402128942.3247.292.camel@pasglop> Subject: Re: Missing USB XHCI and EHCI reset for kexec From: Benjamin Herrenschmidt To: Thadeu Lima de Souza Cascardo Cc: linux-usb , linux-kernel@vger.kernel.org, Greg KH , Alan Stern , sarah.a.sharp@linux.intel.com Date: Sat, 07 Jun 2014 18:15:42 +1000 In-Reply-To: <1397588067.21321.11.camel@vger.seibold.net> References: <1397416959.1555.30.camel@vger.seibold.net> <1397468521.9258.28.camel@pasglop> <20140414174458.Horde.ieyRX8PcZ0lg3nY1QFE2DA4@webmail.your-server.de> <20140414214807.GA32141@oc0268524204.ibm.com> <20140415120417.Horde.2gdC8Woe64OQXOq_cVqtkg6@webmail.your-server.de> <20140415122013.GA21101@oc0268524204.ibm.com> <20140415170028.Horde.ojJX1pFPqNqnig4r08hUkg1@webmail.your-server.de> <20140415183345.GC21101@oc0268524204.ibm.com> <1397587378.21321.2.camel@vger.seibold.net> <20140415184941.GD21101@oc0268524204.ibm.com> <1397588067.21321.11.camel@vger.seibold.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2014-04-15 at 20:54 +0200, Stefani Seibold wrote: > > > > > >>>>[ 1.170029] xhci_hcd 0001:03:00.0: xHCI Host Controller > > > > > >>>>[ 1.175306] xhci_hcd 0001:03:00.0: new USB bus registered, > > > > > >>>>assigned bus number 1 > > > > > >>>>[ 1.212561] xhci_hcd 0001:03:00.0: Host not halted after 16000 > > > > > >>>>microseconds. > > > > > >>>>[ 1.219621] xhci_hcd 0001:03:00.0: can't setup: -110 > > > > > >>>>[ 1.224597] xhci_hcd 0001:03:00.0: USB bus 1 deregistered > > > > > >>>>[ 1.230021] xhci_hcd 0001:03:00.0: init 0001:03:00.0 fail, -110 > > > > > >>>>[ 1.235955] xhci_hcd: probe of 0001:03:00.0 failed with error -110 > > > > > >>>> Cascardo, Alan, Bringing back that old thread.. I'm trying to kexec from our OPAL FW bootloader (3.10.23 based) to a fedora 3.14.3 on a new machine and am still seeing the above. A reset brings the chip back. Do we have any resolution here ? It looks like the xHCI remains active on the way out and is clagged up on the way back in, at least in a state the driver really doesn't like. And this is a "clean" kexec, not a forced one... This is killing USB on the upcoming OpenPower dev machines. Cheers, Ben. -- 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/