[pve-devel] proxmox6 : vhost_net experimental_zcopytx=1 bug?
t.lamprecht at proxmox.com
Wed Aug 21 09:59:43 CEST 2019
On 8/21/19 9:31 AM, Wolfgang Bumiller wrote:
> On Tue, Aug 20, 2019 at 11:32:57AM +0200, Alexandre DERUMIER wrote:
>> Some users have reported vm start timeout on proxmox6
>> and for at least 2 of them,
>> the vhost_net module option experimental_zcopytx=0 have fixed it.
> I do not really see the connection, though... O.o
> Could also be an issue with our systemd related code, or with systemd's
> scope handling (yet again)...
let's really hope that that's not the case, the error seems definitively
like some other sort of issue.
>> It was enable by default since 2012, so maybe regression somewhere. (also redhat disable it by default)
>> It seem than in kernel 5.1, the value has been rollback to 0
>> Not sure if this patch could be backported in proxmox 5.0 kernel ?
> Makes sense IMO. After all it's an upstream decision made due to known issues.
made sense to me to, so done, will only be released in the kernel after the
next one, bumped just yesterday and this went under my radar.. :/
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