Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.kernel > #84021

Bug#1082081: still issues in linux 6.1.106-3

Cross-posted to 2 groups.

Show all headers | View raw

Hi,

On Wed, Sep 18, 2024 at 12:01:01PM +0000, Kocher Emanuel, Bedag wrote:
> Hi Salvatore
> 
> On 18/09/2024 10:21, Salvatore Bonaccorso wrote:
> > Resending to the correct bug (#1082081)
> >
> > On Wed, Sep 18, 2024 at 10:19:28AM +0200, Salvatore Bonaccorso wrote:
> >> Hi David, hi Emanuel,
> >>
> >> On Wed, Sep 18, 2024 at 08:29:54AM +0200, David Prévot wrote:
> >>> Control: clone -1 -2
> >>> Control: reopen -2
> >>> Control: found -2 linux/6.1.106-3
> >>> Control: retitle -2 Performance issues on VM (virtio)
> >>>
> >>> Hi,
> >>>
> >>> Le Mon, Sep 16, 2024 at 11:37:07AM +0000, Kocher Emanuel, Bedag a écrit :
> >>> […]
> >>>> We still see issues with linux/6.1.106-3 in combination with virtio.
> >>> Thanks for the feedback.
> >>>
> >>>> Network performance is down to ~4 Mb/s measured with iperf3 instead of
> >>>> ~8 Gb/s (with linux/6.1.99-1 respectively 6.1.0-23-amd64). It is
> >>>> reproducible and booting the previous kernel resolves the issue.
> >>> Our network team also noticed performance issues, roughly 20 to 30%
> >>> increase speed on packages download once we reverted to 6.1.0-23-amd64
> >>> on a mirror we host. Not sure it’s exactly the same issue as the one
> >>> initially reported, hence the clone, but I agree there is still an issue
> >>> with the current stable kernel.
> >> Thanks for reporting back. I will try to reproduce it so we can test
> >> against newer 6.1.y kernels as well. Do you have reproducers available
> >> to show it?
> 
> Yes, we are able to reproduce it on Nutanix hypervisors (virtio 
> modules). There are different effects, e.g. copying a 1G file from an 
> NFS-Share to such a server results in input/output errors (after approx 
> 50s) and the NFS share going stale for a while, whereas on a healthy 
> server the process takes approx. 6s.
> 
> We see a lot of kernel messages like the one below (size varying between 
> 1368, 1380, 1398 and 1448):
> 
>      eth0: bad gso: type: 1, size: 1448
> 
> Tell me if you want me to test something.

Ah Nutanix, well that's not easily available to get ;-). Anyway, I
noticed there is the following commit queued for the next stable
series:

https://lore.kernel.org/all/20240910213553.839926-1-willemdebruijn.kernel@gmail.com/

I'm not yet sure and have to find a way to reproduce your both issues,
but in case you might check if applying the patch fixes your issue?

Regards,
Salvatore

Back to linux.debian.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Bug#1079684: Network errors on VM David Prévot <taffit@debian.org> - 2024-08-26 11:00 +0200
  Bug#1079684: Network errors on VM David Prévot <taffit@debian.org> - 2024-08-26 15:50 +0200
  Bug#1079684: still issues in linux 6.1.106-3 "Kocher Emanuel, Bedag" <emanuel.kocher@bedag.ch> - 2024-09-16 14:00 +0200
    Bug#1079684: still issues in linux 6.1.106-3 David Prévot <taffit@debian.org> - 2024-09-18 08:40 +0200
  Bug#1082081: Bug#1079684: still issues in linux 6.1.106-3 Salvatore Bonaccorso <carnil@debian.org> - 2024-09-18 10:30 +0200
    Bug#1082081: still issues in linux 6.1.106-3 "Kocher Emanuel, Bedag" <emanuel.kocher@bedag.ch> - 2024-09-18 14:20 +0200
      Bug#1082081: still issues in linux 6.1.106-3 Salvatore Bonaccorso <carnil@debian.org> - 2024-09-18 16:10 +0200
        Bug#1082081: still issues in linux 6.1.106-3 Florian La Roche <florian.laroche@googlemail.com> - 2024-09-21 09:00 +0200
  Bug#1082081: Problem actually unreproducible for us David Prevot <dprevot+debian@evolix.fr> - 2024-09-25 15:50 +0200
    Bug#1082081: Problem actually unreproducible for us "Kocher Emanuel, Bedag" <emanuel.kocher@bedag.ch> - 2024-09-25 23:20 +0200
      Bug#1082081: Problem actually unreproducible for us Salvatore Bonaccorso <carnil@debian.org> - 2024-10-04 22:30 +0200
        Bug#1082081: Problem actually unreproducible for us "Kocher Emanuel, Bedag" <emanuel.kocher@bedag.ch> - 2024-10-08 10:10 +0200
          Bug#1082081: Problem actually unreproducible for us Salvatore Bonaccorso <carnil@debian.org> - 2024-10-12 19:10 +0200
        Bug#1082081: Problem actually unreproducible for us Markus <markus@opsone.ch> - 2024-10-08 11:00 +0200
  Bug#1082081: marked as done (Performance issues on VM (virtio)) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-10-12 19:10 +0200

csiph-web