Re: [Xen-devel] Lockup/High ksoftirqd when rate-limiting is enabled

2017-06-21 Thread Wei Liu
On Wed, Jun 21, 2017 at 10:35:11AM +0200, Jean-Louis Dupond wrote: > Thanks for this quick patch. > I was able to test it today, and the high ksoftirqd cpu usage is gone. > > Great! > > Is there a chance this can get pushed into stable kernel versions (3.18.x, > 4.4.x, etc)? > There is not really

Re: [Xen-devel] Lockup/High ksoftirqd when rate-limiting is enabled

2017-06-21 Thread Jean-Louis Dupond
Thanks for this quick patch. I was able to test it today, and the high ksoftirqd cpu usage is gone. Great! Is there a chance this can get pushed into stable kernel versions (3.18.x, 4.4.x, etc)? There is not really a backport work, as the netback driver hasn't changed alot recently. Tested-

Re: [Xen-devel] Lockup/High ksoftirqd when rate-limiting is enabled

2017-06-20 Thread Wei Liu
On Tue, Jun 20, 2017 at 11:31:02AM +0200, Jean-Louis Dupond wrote: > Hi, > > As requested via IRC i'm sending this to xen-devel & netback maintainers. > > We are using Xen 4.4.4-23.el6 with kernel 3.18.44-20.el6.x86_64. > Now recently we're having issues with rate-limiting enabled. > > When we e

[Xen-devel] Lockup/High ksoftirqd when rate-limiting is enabled

2017-06-20 Thread Jean-Louis Dupond
Hi, We are using Xen 4.4.4-23.el6 with kernel 3.18.44-20.el6.x86_64. Now recently we're having issues with rate-limiting enabled. When we enable rate limiting in Xen, and then do alot of outbound traffic on the domU, we notice a high ksoftirqd load. But in some cases the system locks up comple

[Xen-devel] Lockup/High ksoftirqd when rate-limiting is enabled

2017-06-20 Thread Jean-Louis Dupond
Hi, As requested via IRC i'm sending this to xen-devel & netback maintainers. We are using Xen 4.4.4-23.el6 with kernel 3.18.44-20.el6.x86_64. Now recently we're having issues with rate-limiting enabled. When we enable rate limiting in Xen, and then do alot of outbound traffic on the domU, w