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Message-ID: <CA+GUGJ0z14umWdDHz=TtSBoJ_ck-iT67+=cNLMmjiy94VavTvg@mail.gmail.com> Date: Tue, 17 Mar 2015 16:21:27 +0100 From: Alistair Grant <akgrant0710@...il.com> To: Mathias Nyman <mathias.nyman@...el.com>, Lu Baolu <baolu.lu@...ux.intel.com>, Mathias Nyman <mathias.nyman@...ux.intel.com> Cc: Devin Heitmueller <dheitmueller@...nellabs.com>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2 1/1] usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers On Mon, Mar 16, 2015 at 5:29 PM, Mathias Nyman <mathias.nyman@...el.com> wrote: > On 16.03.2015 17:21, Alistair Grant wrote: >> On Mon, Mar 16, 2015 at 3:47 PM, Mathias Nyman <mathias.nyman@...el.com> wrote: >>> On 16.03.2015 16:31, Alistair Grant wrote: >>>> On Mon, Mar 16, 2015 at 1:55 PM, Mathias Nyman >>>> <mathias.nyman@...ux.intel.com> wrote: >>>>> On 15.03.2015 21:18, Alistair Grant wrote: >>>>>> On Sun, Mar 15, 2015 at 3:54 PM, Alistair Grant <akgrant0710@...il.com> wrote: >>>>>> ... >>>>>> It looks like I may have signed-off a little too soon. While the patch is >>>>>> working correctly if the Hauppauge Live2 is plugged in after the system has >>>>>> booted and settled down (my normal use case), it fails if the Live2 is >>>>>> plugged in while the system is booted up. >>>>>> >>>>>> Unplugging the Live2 after recording (which appears to succeed from the >>>>>> command line, but had no audio), executing lsusb just hangs. >>>>>> >>>>>> I've included what I think is the relevant portions of /var/log/syslog >>>>>> below. If you'd like the entire log file posted somewhere please let me >>>>>> know. >>>>> >>>>> Hi >>>>> >>>>> What kernel did you try this patch on? >>>>> >>>>> The output look a bit like the regression in 4.0-rc3 caused by: >>>>> commit 27082e2654dc148078b0abdfc3c8e5ccbde0ebfa >>>>> xhci: Clear the host side toggle manually when endpoint is 'soft reset' >>>>> >>>>> which will be reverted (in 4.0-rc5 I hope). >>>>> >>>>> If you boot the same base kernel without the patch does it work then? >>>>> >>>>> -Mathias >>>>> >>>> >>>> Hi Mathias, >>>> >>>> This is on top of 3.19.1 with only the XHCI_AVOID_BEI quirk patch applied. >>>> >>>> If you'd like me to try it against 4.0-rc3, 4 or 5, please let me know. >>> >>> Thanks, no that's not needed. >>> But did the patch cause regression on top of 3.19.1? >>> I mean, did it make 3.19.1 worse, better or just different for you, while >>> booting with the device connected? >> >> Recording doesn't work at all with 3.19.1 without the patch. I've >> included an extract from syslog below of attempting to record with a >> clean 3.19.1 system (i.e. XHCI_AVOID_BEI quirk patch NOT applied, to >> state the obvious). >> >> I did mean to say in my original message that I would still release >> this patch even with the current known issue as it still improves the >> overall stability of the system. >> > > Ok, thanks > I'll add it to the queue Hi Mathias & Lu, FYI... I also tried booting with the Live2 plugged in with the following kernel: * 3.19.1 * usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers * xhci: Allocate correct amount of scratchpad buffers * xhci.h: Increase TRBS_PER_SEGMENT from 64 to 256 i.e. add the scratchpad buffers fix and increase TRBS_PER_SEGMENT, however the problem still occurs if the Live2 is plugged in during boot up. Thanks, Alistair -- 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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