On Thu, Feb 06, 2020 at 04:46:08PM +0100, Adam Wolk wrote:
> On Tue, Feb 04, 2020 at 03:19:17PM +1100, Kenneth R Westerback wrote:
> > On Sun, Feb 02, 2020 at 10:19:44PM -0500, Kenneth R Westerback wrote:
> > > On Mon, Feb 03, 2020 at 12:30:18AM +0100, Adam Wolk wrote:
> > > > On Sun, Feb 02, 2020 at 04:06:38PM -0500, Kenneth Westerback wrote:
> > > > > A kernel with XHCI_DEBUG may supply useful info.
> > > > > 
> > > > 
> > > > I'm currently running with the XHCI_DEBUG enabled in the kernel.
> > > > Attaching a dmesg and will report back if I manage to reproduce
> > > > the issue on it.
> > > > 
> > > > Look for:
> > > > 
> > > > OpenBSD 6.6-current (XHCI_DEBUG) #0: Sun Feb  2 23:55:04 CET 2020
> > > >     mulander@napalm.local:/sys/arch/amd64/compile/XHCI_DEBUG
> > > > 
> > > > in the trace below.
> > > > 
> > > > Between the first two panics I had roughly 1h of usage. You can
> > > > see that on the clock from ddb photos. I don't have a reliable
> > > > way to reproduce however I wasn't able to trigger it with the xhci.c
> > > > commit 1.111 reverted - had several hours of uptime with solid load.
> > > > 
> > > > With the XHCI_DEBUG enabled I tried forcing the issue by generating load
> > > > (large downloads, speedtests, running pkg_add and trying to load chrome
> > > > with HD videos). No luck so far.
> > > > 
> > > > > Testing the device on the EHCI port I see in your dmesg would also be
> > > > > useful to confirm the problem is likely in xhci vs run.
> > > > > 
> > > > 
> > > > I will attempt that if I manage to reproduce the issue one more time on
> > > > the xhci port.
> > > > 
> > > > > A quick test with an older run device plugged into my Lenovo e595 has 
> > > > > not
> > > > > panic'ed yet.
> > > > > 
> > > > > Are you connecting to an ' N' access point or 'G', or ...
> > > > > 
> > > > 
> > > > I am using the same setup on all reboots.
> > > > 
> > > > Currently: IEEE802.11 autoselect (OFDM9 mode 11g)
> > > 
> > > I have scrounged two run(4) devices from the scrap heap and both fail
> > > during a reposync. No panic, just "txerr? code=4" messages before they
> > > cease to pass traffic. Both with 'G' and 'N'.
> > > 
> > > Unfortunately they fail the same way with or without r1.111. :-( So I
> > > *suspect* this is a different problem than yours. But I will see if
> > > any of my older machines have the same Intel xHCI interface as your
> > > box and perhaps they will fail differently there. Tomorrow.
> > > 
> > > .... Ken
> > 
> > My x230 has Intel xHCI series 7. And the run(4) devices either work,
> > or fail the same way as on the AMD xHCI in my E595.
> > 
> > Amazon says they can't provide one of the devices you are
> > using. Poking around to see if I can find one with at least the same
> > chip inside.
> > 
> > .... Ken
> 
> I have been running the same kernel (without any changes reverted) and
> XHCI DEBUG on since the time of my last email.
> 
> I unfortunately wasn't able to reproduce the issue and it didn't happen
> naturally so far.
> 
> I appreciate your help but I don't want to take more of your time
> with an unreproducible bug. I will let you know as soon as I manage to
> reproduce it and grab more data.
> 
> Regards,
> Adam

Noted. Thanks.

.... Ken

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