On Thu, Sep 28, 2017 at 03:04:02PM +0000, Olivier Bonvalet wrote: > Le jeudi 28 septembre 2017 à 12:16 +0200, Olivier Bonvalet a écrit : > > It's a Debian Stretch system, running a 4.9.52 Linux kernel (on a Xen > > 4.8.2 hypervisor). > > With an old 4.1.x Linux kernel, I haven't any problem. > > Just a precision, this VM have 26 block devices attached. > Don't know if that can be related.
Quite likely. With so many PV block devices attached you either have to limit the number of queues and persistent grants per-device, or expand the number of grants allowed by Xen. Can you try to set the following in the Xen command line [0] and see if that solves your issues: gnttab_max_frames=64 Roger. [0] http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
