Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Alan Stern
kernel@vger.kernel.org, t...@linutronix.de, > michal.neca...@oracle.com, knut.osmund...@oracle.com > Sent: Friday, October 21, 2016 6:54:13 PM GMT +01:00 Amsterdam / Berlin / > Bern / Rome / Stockholm / Vienna > Subject: Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, prob

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Alan Stern
kernel@vger.kernel.org, t...@linutronix.de, > michal.neca...@oracle.com, knut.osmund...@oracle.com > Sent: Friday, October 21, 2016 6:54:13 PM GMT +01:00 Amsterdam / Berlin / > Bern / Rome / Stockholm / Vienna > Subject: Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, prob

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Thomas Gleixner
On Fri, 21 Oct 2016, Michal Necasek wrote: > I'll get back to you on whether increasing the timeout helps, it'll take > a bit of testing. Does it actually sound plausible that some controllers > could not get things done in 250ms but could in 275ms? There is a bug in the new timer wheel code,

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Thomas Gleixner
On Fri, 21 Oct 2016, Michal Necasek wrote: > I'll get back to you on whether increasing the timeout helps, it'll take > a bit of testing. Does it actually sound plausible that some controllers > could not get things done in 250ms but could in 275ms? There is a bug in the new timer wheel code,

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Michal Necasek
eouts inside VirtualBox, probably due to timer wheel rework On Fri, 21 Oct 2016, Michael Thayer wrote: > Hello Alan (LKML on CC), > > Contacting you about this on Thomas Gleixner's (also on CC) suggestion. > The short summary is that when Linux 4.8.0 (also tested with a few

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Michal Necasek
eouts inside VirtualBox, probably due to timer wheel rework On Fri, 21 Oct 2016, Michael Thayer wrote: > Hello Alan (LKML on CC), > > Contacting you about this on Thomas Gleixner's (also on CC) suggestion. > The short summary is that when Linux 4.8.0 (also tested with a few

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Alan Stern
On Fri, 21 Oct 2016, Michael Thayer wrote: > Hello Alan (LKML on CC), > > Contacting you about this on Thomas Gleixner's (also on CC) suggestion. > The short summary is that when Linux 4.8.0 (also tested with a few later > kernels) is run on a VirtualBox virtual machine with USB enabled, OHCI

Re: PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Alan Stern
On Fri, 21 Oct 2016, Michael Thayer wrote: > Hello Alan (LKML on CC), > > Contacting you about this on Thomas Gleixner's (also on CC) suggestion. > The short summary is that when Linux 4.8.0 (also tested with a few later > kernels) is run on a VirtualBox virtual machine with USB enabled, OHCI

PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Michael Thayer
Hello Alan (LKML on CC), Contacting you about this on Thomas Gleixner's (also on CC) suggestion. The short summary is that when Linux 4.8.0 (also tested with a few later kernels) is run on a VirtualBox virtual machine with USB enabled, OHCI fails with the log messages "frame counter not

PROBLEM: OHCI watchdog timeouts inside VirtualBox, probably due to timer wheel rework

2016-10-21 Thread Michael Thayer
Hello Alan (LKML on CC), Contacting you about this on Thomas Gleixner's (also on CC) suggestion. The short summary is that when Linux 4.8.0 (also tested with a few later kernels) is run on a VirtualBox virtual machine with USB enabled, OHCI fails with the log messages "frame counter not