Re: [Xen-devel] race condition in xen-gntdev (was: Re: gntdev/gntalloc and fork? - crash in gntdev)

2015-06-22 Thread Konrad Rzeszutek Wilk
On Mon, Jun 22, 2015 at 08:13:35PM +0200, Marek Marczykowski-Górecki wrote: > On Mon, Jun 22, 2015 at 01:46:27PM -0400, Konrad Rzeszutek Wilk wrote: > > On Wed, Jun 17, 2015 at 09:42:11PM +0200, Marek Marczykowski-Górecki wrote: > > > On Thu, May 28, 2015 at 01:45:08AM +0200, Marek Marczykowski-Gór

Re: [Xen-devel] race condition in xen-gntdev (was: Re: gntdev/gntalloc and fork? - crash in gntdev)

2015-06-22 Thread Marek Marczykowski-Górecki
On Mon, Jun 22, 2015 at 01:46:27PM -0400, Konrad Rzeszutek Wilk wrote: > On Wed, Jun 17, 2015 at 09:42:11PM +0200, Marek Marczykowski-Górecki wrote: > > On Thu, May 28, 2015 at 01:45:08AM +0200, Marek Marczykowski-Górecki wrote: > > > On Thu, Apr 30, 2015 at 04:47:44PM +0200, Marek Marczykowski-Gór

Re: [Xen-devel] race condition in xen-gntdev (was: Re: gntdev/gntalloc and fork? - crash in gntdev)

2015-06-22 Thread Konrad Rzeszutek Wilk
On Wed, Jun 17, 2015 at 09:42:11PM +0200, Marek Marczykowski-Górecki wrote: > On Thu, May 28, 2015 at 01:45:08AM +0200, Marek Marczykowski-Górecki wrote: > > On Thu, Apr 30, 2015 at 04:47:44PM +0200, Marek Marczykowski-Górecki wrote: > > > Hi, > > > > > > What is the proper way to handle shared pa

[Xen-devel] race condition in xen-gntdev (was: Re: gntdev/gntalloc and fork? - crash in gntdev)

2015-06-17 Thread Marek Marczykowski-Górecki
On Thu, May 28, 2015 at 01:45:08AM +0200, Marek Marczykowski-Górecki wrote: > On Thu, Apr 30, 2015 at 04:47:44PM +0200, Marek Marczykowski-Górecki wrote: > > Hi, > > > > What is the proper way to handle shared pages (either side - using > > gntdev or gntalloc) regarding fork and possible exec late