Re: [Xen-devel] [PATCH] xenfb: Fix overzealous ring test

2016-04-18 Thread Samuel Thibault
Wei Liu, on Mon 18 Apr 2016 15:40:15 +0100, wrote: > This patch is already queued by Stefano. Ah, sorry, I missed it. Samuel ___ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel

Re: [Xen-devel] [PATCH] xenfb: Fix overzealous ring test

2016-04-18 Thread Wei Liu
On Mon, Apr 18, 2016 at 02:41:48PM +0200, Samuel Thibault wrote: > From: Wei Liu > > pv-grub booting got broken with recent qemu-xen, due to > ac0487e1d2ae811cd4d035741a109a4ecfb013f1 ('xenfb.c: avoid expensive loops > when prod <= out_cons') > > prod - out_cons can

[Xen-devel] [PATCH] xenfb: Fix overzealous ring test

2016-04-18 Thread Samuel Thibault
From: Wei Liu pv-grub booting got broken with recent qemu-xen, due to ac0487e1d2ae811cd4d035741a109a4ecfb013f1 ('xenfb.c: avoid expensive loops when prod <= out_cons') prod - out_cons can actually be XENFB_OUT_RING_LEN when the ring is exactly full, this is a normal