On Sat, 13 Oct 2012 20:17:59 +0100 David Röthlisberger <david@xxxxxxxxxxx> wrote: > On Wed, 26 Sep 2012 21:42:32 -0500 > Keith Pyle <kpyle@xxxxxxxxxxxxx> wrote: > > I recently purchased a Hauppauge HD-PVR (the 1212 version, label on > > bottom 49001LF, Rev F2). I have consistent capture failures on Linux > > where data from the device simply stops, generally within a few minutes > > of starting a capture. > > > > [...] > > > > Sep 21 17:01:01 mythbe kernel: [535043.703947] hdpvr 9-1:1.0: firmware > > version 0x15 dated Jun 17 2010 09:26:53 > > When we contacted Hauppauge regarding the stability issue, they > recommended upgrading to the latest firmware dated Mar 26 2012. > We *think* this has improved stability, but it certainly hasn't > fixed it completely. > > Upgrading the firmware requires a Windows PC -- see > http://www.hauppauge.com/site/support/support_hdpvr.html > > > On 13 Oct 2012, at 16:28, Jonathan wrote: > > > It may be a coincidence but I since I started using irqbalance ( > > https://code.google.com/p/irqbalance/ ) my HD-PVR has been completely > > stable. Before that I was experiencing daily lockups. > > Interesting. You definitely didn't upgrade the firmware around the same > time? > > We think the stability is worse when the Linux PC is heavily loaded: We > do real-time image processing on the video stream from the HD PVR, so > the CPUs are maxed out, and we get frequent lock-ups. We also think the > lock-ups are more frequent when we have several HD PVRs connected to the > same PC, all running at the same time. I'll have to try this irqbalance. > > --Dave. No change in my firmware; still on version 0x15. FWIW, after using irqblance for about 10 days, cat /proc/interrupts shows the interrupt for xhci_hcd (the USB3 bus my HD-PVR is attached to) is now spread across all 4 cores whereas before it was loaded up on CPU0. Same thing was shown for ahci, and a lot of data is being written to disk when the HD-PVR is working so I guess that could be a factor as well. Jonathan -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
