[virtio-dev] Re: Random guest crashes since 5c34d002dcc7 ("virtio_pci: use shared interrupts for virtqueues")

2017-03-29 Thread Michael S. Tsirkin
On Wed, Mar 29, 2017 at 08:23:22AM +0200, Mike Galbraith wrote: > On Mon, 2017-03-27 at 20:18 +0200, Mike Galbraith wrote: > > > BTW, WRT RT woes with $subject, I tried booting a generic kernel with > > threadirqs, and bingo, same deal, just a bit more painful than for RT, > > where there's no wat

[virtio-dev] Re: Random guest crashes since 5c34d002dcc7 ("virtio_pci: use shared interrupts for virtqueues")

2017-03-29 Thread Michael S. Tsirkin
On Wed, Mar 29, 2017 at 08:23:22AM +0200, Mike Galbraith wrote: > On Mon, 2017-03-27 at 20:18 +0200, Mike Galbraith wrote: > > > BTW, WRT RT woes with $subject, I tried booting a generic kernel with > > threadirqs, and bingo, same deal, just a bit more painful than for RT, > > where there's no wat

[virtio-dev] Re: [PATCH kernel v8 3/4] mm: add inerface to offer info about unused pages

2017-03-29 Thread Michael S. Tsirkin
On Fri, Mar 17, 2017 at 02:55:33PM +0800, Wei Wang wrote: > On 03/17/2017 05:28 AM, Andrew Morton wrote: > > On Thu, 16 Mar 2017 15:08:46 +0800 Wei Wang wrote: > > > > > From: Liang Li > > > > > > This patch adds a function to provides a snapshot of the present system > > > unused pages. An imp

Re: [virtio-dev] [PATCH] net: relax buf size requirements for mrg buffers

2017-03-29 Thread Maxime Coquelin
On 03/28/2017 01:09 AM, Michael S. Tsirkin wrote: VIRTIO-84 added a requirement that each buffer is > header size but there's no reason to require that for merge-able buffers since data can be placed in follow-up buffers. The current wording seems confusing enough that it seems likely no one r

Re: [virtio-dev] [PATCH] net: clarify device rules for mergeable buffers

2017-03-29 Thread Maxime Coquelin
On 03/28/2017 01:09 AM, Michael S. Tsirkin wrote: The idea behind mergeable buffers was to simply use them in a way similar to a chain of descriptors. Unfortunately the current text does not say so - apparently nothing says device can't spread a packet over as many buffers as it likes - but th

Re: [virtio-dev] packed ring layout proposal - todo list

2017-03-29 Thread Michael S. Tsirkin
On Wed, Mar 08, 2017 at 03:56:24PM +0800, Yuanhan Liu wrote: > On Wed, Mar 08, 2017 at 03:09:48PM +0800, Yuanhan Liu wrote: > > On Wed, Mar 01, 2017 at 03:07:29AM +0200, Michael S. Tsirkin wrote: > > > On Tue, Feb 28, 2017 at 12:29:43PM +0800, Yuanhan Liu wrote: > > > > Hi Michael, > > > > > > > >