Andy Furniss wrote:
Hi I recently set up a Asrock Q1900DC-itx Intel baytrail board as a
router/nas/pvr. It has 2 usb dvb T/T2 tuners attached - pctv 290e and
292e.
When running them I am getting lost dvb packets which are detected
as lost via dvbs continuity counters.
Have tried 3.18.14, and today 4.1.0-rc7 both have the issue.
3.14.43 may not have the issue - but I could only test that with one
device due to my 292e not being supported. While testing 3.14.xx I
noticed that earlier versions did show the issue (and spinning a cpu
fixed it) - bisecting that came up with -
usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
I see this is in 3.18 and current though - the reason I mention it
is that the fact I could "fix" 3.14 before that by spinning a cpu eg.
-
nice -19 dd if=/dev/urandom of=/dev/null
leads me to think the current issue is USB related also - hence I am
posting here.
Analysing mux dumps shows the loss events may be between 1 and 6 188
byte packets.
Where to go from here - anyone have any suggestions?
I don't really know much about USB, so if it were any of you that had
this issue could you tell me where you would start to look/what would
you try?
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