Re: [Xen-devel] Double gnttab_end_access in mini-os netfront

2015-12-08 Thread Samuel Thibault
Marek Marczykowski-Górecki, on Tue 08 Dec 2015 12:46:31 +0100, wrote: > > > http://xenbits.xen.org/gitweb/?p=mini-os.git;a=commit;h=7c8f348390652a67e > > > 9356eec9cd2b0f76a9c7c72 > > > > > > With that commit reverted, issue vanishes. > > > > > > I guess it's because before this commit, there was

Re: [Xen-devel] Double gnttab_end_access in mini-os netfront

2015-12-08 Thread Samuel Thibault
Ian Campbell, on Tue 08 Dec 2015 11:33:49 +, wrote: > > http://xenbits.xen.org/gitweb/?p=mini-os.git;a=commit;h=7c8f348390652a67e > > 9356eec9cd2b0f76a9c7c72 > > > > With that commit reverted, issue vanishes. > > > > I guess it's because before this commit, there was "if (rx->status == > > NE

Re: [Xen-devel] Double gnttab_end_access in mini-os netfront

2015-12-08 Thread Marek Marczykowski-Górecki
On Tue, Dec 08, 2015 at 11:33:49AM +, Ian Campbell wrote: > On Sun, 2015-12-06 at 03:19 +0100, Marek Marczykowski-Górecki wrote: > > Hi, > > > > When running HVM on Xen 4.6 with qemu in stubdom, I've found that > > something goes wrong with disk frontend (at least that was visible > > problem

Re: [Xen-devel] Double gnttab_end_access in mini-os netfront

2015-12-08 Thread Ian Campbell
On Sun, 2015-12-06 at 03:19 +0100, Marek Marczykowski-Górecki wrote: > Hi, > > When running HVM on Xen 4.6 with qemu in stubdom, I've found that > something goes wrong with disk frontend (at least that was visible > problem - a lot of read and write errors in stubdom log). But further > debugging

[Xen-devel] Double gnttab_end_access in mini-os netfront

2015-12-05 Thread Marek Marczykowski-Górecki
Hi, When running HVM on Xen 4.6 with qemu in stubdom, I've found that something goes wrong with disk frontend (at least that was visible problem - a lot of read and write errors in stubdom log). But further debugging (including -DGNT_DEBUG) leads to double gnttab_end_access in netfront. The stac