Re: [RFC PATCH 2/3] netdev: kernel-only IFF_HIDDEN netdevice

2018-04-08 Thread David Miller
From: Siwei Liu Date: Fri, 6 Apr 2018 19:32:05 -0700 > And I assume everyone here understands the use case for live > migration (in the context of providing cloud service) is very > different, and we have to hide the netdevs. If not, I'm more than > happy to clarify. I think you still need to cl

Re: [PATCH] vhost-net: set packet weight of tx polling to 2 * vq size

2018-04-08 Thread David Miller
From: haibinzhang(张海斌) Date: Fri, 6 Apr 2018 08:22:37 + > handle_tx will delay rx for tens or even hundreds of milliseconds when tx busy > polling udp packets with small length(e.g. 1byte udp payload), because setting > VHOST_NET_WEIGHT takes into account only sent-bytes but no single packet

Re: kernel BUG at drivers/vhost/vhost.c:LINE! (2)

2018-04-08 Thread Stefan Hajnoczi
On Sat, Apr 7, 2018 at 3:02 AM, syzbot wrote: > syzbot hit the following crash on upstream commit > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +) > Merge tag 'armsoc-drivers' of > git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc > syzbot dashboard link: > https:

Re: [PATCH] vhost-net: set packet weight of tx polling to 2 * vq size

2018-04-08 Thread Michael S. Tsirkin
On Fri, Apr 06, 2018 at 08:22:37AM +, haibinzhang(张海斌) wrote: > handle_tx will delay rx for tens or even hundreds of milliseconds when tx busy > polling udp packets with small length(e.g. 1byte udp payload), because setting > VHOST_NET_WEIGHT takes into account only sent-bytes but no single pac

Re: kernel BUG at drivers/vhost/vhost.c:LINE! (2)

2018-04-08 Thread Michael S. Tsirkin
On Mon, Apr 09, 2018 at 10:37:45AM +0800, Stefan Hajnoczi wrote: > On Sat, Apr 7, 2018 at 3:02 AM, syzbot > wrote: > > syzbot hit the following crash on upstream commit > > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +) > > Merge tag 'armsoc-drivers' of > > git://git.kern

Re: kernel BUG at drivers/vhost/vhost.c:LINE! (2)

2018-04-08 Thread Stefan Hajnoczi
On Mon, Apr 09, 2018 at 05:44:36AM +0300, Michael S. Tsirkin wrote: > On Mon, Apr 09, 2018 at 10:37:45AM +0800, Stefan Hajnoczi wrote: > > On Sat, Apr 7, 2018 at 3:02 AM, syzbot > > wrote: > > > syzbot hit the following crash on upstream commit > > > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri A

Re: [PATCH] vhost-net: set packet weight of tx polling to 2 * vq size

2018-04-08 Thread Michael S. Tsirkin
On Mon, Apr 09, 2018 at 04:09:20AM +, haibinzhang(张海斌) wrote: > > > On Fri, Apr 06, 2018 at 08:22:37AM +, haibinzhang(张海斌) wrote: > > > handle_tx will delay rx for tens or even hundreds of milliseconds when tx > > > busy > > > polling udp packets with small length(e.g. 1byte udp payload),

Re: [PATCH v31 2/4] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT

2018-04-08 Thread Michael S. Tsirkin
On Fri, Apr 06, 2018 at 08:17:23PM +0800, Wei Wang wrote: > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_HINT feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free page hints by sending a new cmd > id to the g