Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-12 Thread Maxime Coquelin
On 12/12/2017 06:25 AM, Tan, Jianfeng wrote: -Original Message- From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] Sent: Friday, December 8, 2017 6:12 PM To: Tan, Jianfeng; Victor Kaplansky; dev@dpdk.org; y...@fridaylinux.org; Bie, Tiwei Cc: sta...@dpdk.org; jfrei...@redhat.co

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-11 Thread Tan, Jianfeng
> -Original Message- > From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] > Sent: Friday, December 8, 2017 6:12 PM > To: Tan, Jianfeng; Victor Kaplansky; dev@dpdk.org; y...@fridaylinux.org; Bie, > Tiwei > Cc: sta...@dpdk.org; jfrei...@redhat.com > Subject: Re: [PATCH] vhost_user: p

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-08 Thread Maxime Coquelin
Hi Jianfeng, On 12/08/2017 09:51 AM, Tan, Jianfeng wrote: -Original Message- From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] Sent: Friday, December 8, 2017 4:36 PM To: Tan, Jianfeng; Victor Kaplansky; dev@dpdk.org; y...@fridaylinux.org; Bie, Tiwei Cc: sta...@dpdk.org; jfrei.

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-08 Thread Tan, Jianfeng
> -Original Message- > From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] > Sent: Friday, December 8, 2017 4:36 PM > To: Tan, Jianfeng; Victor Kaplansky; dev@dpdk.org; y...@fridaylinux.org; Bie, > Tiwei > Cc: sta...@dpdk.org; jfrei...@redhat.com > Subject: Re: [PATCH] vhost_user: p

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-08 Thread Maxime Coquelin
On 12/08/2017 03:14 AM, Tan, Jianfeng wrote: -Original Message- From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] Sent: Thursday, December 7, 2017 6:02 PM To: Tan, Jianfeng; Victor Kaplansky; dev@dpdk.org; y...@fridaylinux.org; Bie, Tiwei Cc: sta...@dpdk.org; jfrei...@redhat.

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-07 Thread Tan, Jianfeng
> -Original Message- > From: Maxime Coquelin [mailto:maxime.coque...@redhat.com] > Sent: Thursday, December 7, 2017 6:02 PM > To: Tan, Jianfeng; Victor Kaplansky; dev@dpdk.org; y...@fridaylinux.org; Bie, > Tiwei > Cc: sta...@dpdk.org; jfrei...@redhat.com > Subject: Re: [PATCH] vhost_user:

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-07 Thread Maxime Coquelin
On 12/07/2017 10:33 AM, Tan, Jianfeng wrote: -Original Message- From: Victor Kaplansky [mailto:vkapl...@redhat.com] Sent: Wednesday, December 6, 2017 9:56 PM To: dev@dpdk.org; y...@fridaylinux.org; Bie, Tiwei; Tan, Jianfeng; vkapl...@redhat.com Cc: sta...@dpdk.org; jfrei...@redhat.co

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-07 Thread Tan, Jianfeng
> -Original Message- > From: Victor Kaplansky [mailto:vkapl...@redhat.com] > Sent: Wednesday, December 6, 2017 9:56 PM > To: dev@dpdk.org; y...@fridaylinux.org; Bie, Tiwei; Tan, Jianfeng; > vkapl...@redhat.com > Cc: sta...@dpdk.org; jfrei...@redhat.com; Maxime Coquelin > Subject: [PATCH]

Re: [dpdk-dev] [PATCH] vhost_user: protect active rings from async ring changes

2017-12-06 Thread Yuanhan Liu
On Wed, Dec 06, 2017 at 03:55:49PM +0200, Victor Kaplansky wrote: > When performing live migration or memory hot-plugging, > the changes to the device and vrings made by message handler > done independently from vring usage by PMD threads. > > This causes for example segfauls during live-migration