On Mon, May 18, 2020 at 08:12:00PM +0200, Klemens Nanni wrote: > On Mon, May 18, 2020 at 01:20:07PM -0400, Kurt Mosiejczuk wrote: > > Learning how LDOMs work on this T4-1 and we only create 8 devices > > (each /dev/ldom* and /dev/ttyV*) by default. The now-commonly-available > > T4-1 machines can do far more than that pretty easily, so bump up the > > number created by default from 8 to 16. > Seems reasonable, what about adopting vmd(8) CAVEATS for ldomd(8)?
> Running out of devices with more guests can be nasty do debug. Here's an attempt at doing that. There isn't a man page for the ldom devices nor is there one specifically for the ttyV* devices, so I left the ".Xr" off of those. ok? --Kurt Index: ldom.conf.5 =================================================================== RCS file: /cvs/src/usr.sbin/ldomctl/ldom.conf.5,v retrieving revision 1.13 diff -u -p -r1.13 ldom.conf.5 --- ldom.conf.5 21 Feb 2020 19:39:28 -0000 1.13 +++ ldom.conf.5 19 May 2020 23:48:22 -0000 @@ -131,3 +131,10 @@ upon resetting the machine. .Pp If in doubt, leave enough memory unused for the hypervisor to reserve. On bigger T4 based machines, 1024 megabytes has proven to suffice. +.Sh CAVEATS +Each guest requires one ldom device and one ttyV device per configured logical +domain. Administrators may need to create additional devices using +.Xr MAKEDEV 8 +if more than 16 logical domains are configured. + +
