On Mon, Dec 11, 2017 at 4:52 PM, Adi Pircalabu <adi at ddns.com.au> wrote: > Has anyone seen this recently? I couldn't replicate it on: > - CentOS 6 running kernel-2.6.32-696.16.1.el6.x86_64, > kernel-lt-4.4.105-1.el6.elrepo.x86_64 > - CentOS 7 running 4.9.67-1.el7.centos.x86_64 > > But I can replicate it consistently running "xl -v vcpu-set <domU> <val>" > on: > - CentOS 6 running 4.14.5-1.el6.elrepo.x86_64 > - CentOS 7 running 4.14.5-1.el7.elrepo.x86_64 > > dom0 versions tested with similar results in the domU: > - 4.6.6-6.el7 on kernel 4.9.63-29.el7.x86_64 > - 4.6.3-15.el6 on kernel 4.9.37-29.el6.x86_64 > > Noticed behaviour: > - These commands stall: > top > ls -l /var/tmp > ls -l /tmp > - Stuck in D state on the CentOS 7 domU: > root 5 0.0 0.0 0 0 ? D 11:20 0:00 > [kworker/u8:0] > root 316 0.0 0.0 0 0 ? D 11:20 0:00 > [jbd2/xvda1-8] > root 1145 0.0 0.2 116636 4776 ? Ds 11:20 0:00 -bash > root 1289 0.0 0.1 25852 2420 ? Ds 11:35 0:00 > /usr/bin/systemd-tmpfiles --clean > root 1290 0.0 0.1 125248 2696 pts/1 D+ 11:44 0:00 ls > --color=auto -l /tmp/ > root 1293 0.0 0.1 125248 2568 pts/2 D+ 11:44 0:00 ls > --color=auto -l /var/tmp > root 1296 0.0 0.2 116636 4908 pts/3 Ds+ 11:44 0:00 -bash > root 1358 0.0 0.1 125248 2612 pts/4 D+ 11:47 0:00 ls > --color=auto -l /var/tmp > > At a first glance it appears the issue is in 4.14.5 kernel. Stack traces > follow: > > Adi Pircalabu Can you test-install 4.15-rcX to see if the problem persists in the latest kernel?: http://elrepo.org/people/ajb/devel/kernel-ml/el7/x86_64/RPMS/ Akemi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20171214/623c8bc1/attachment-0006.html>