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Re: [linux-linus test] 170771: regressions - FAIL



On 30.05.22 12:49, Jan Beulich wrote:
On 30.05.2022 11:03, osstest service owner wrote:
flight 170771 linux-linus real [real]
http://logs.test-lab.xenproject.org/osstest/logs/170771/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
  test-amd64-amd64-dom0pvh-xl-amd 14 guest-start           fail REGR. vs. 170714
  test-amd64-amd64-dom0pvh-xl-intel 14 guest-start         fail REGR. vs. 170714
  test-amd64-amd64-libvirt-qcow2  8 xen-boot               fail REGR. vs. 170714
  test-amd64-amd64-libvirt      8 xen-boot                 fail REGR. vs. 170714
  test-amd64-amd64-libvirt-raw  8 xen-boot                 fail REGR. vs. 170714
  test-arm64-arm64-xl-seattle   8 xen-boot                 fail REGR. vs. 170714
  test-amd64-amd64-xl-pvhv2-intel 14 guest-start           fail REGR. vs. 170714
  test-amd64-amd64-xl          14 guest-start              fail REGR. vs. 170714

This

vif vif-1-0 vif1.0: Asked for 0 slots but exceeds this limit
vif vif-1-0 vif1.0: fatal error; disabling device

to me looks like a regression in netfront, considering that there
don't look to be any relevant netback changes. I have to admit
though that all three recent netfront commits don't have an
obvious connection to the slot count going wrong. Or wait - isn't
this a result of 6fac592cca60 ("xen: update ring.h") touching
only netfront, when netback also has a use of
RING_HAS_UNCONSUMED_REQUESTS() (in xenvif_tx_build_gops()) which
wants an actual count, not just a boolean?

Oh, indeed!

Thanks for identifying the problem.

In case you don't have a patch ready already, I'll be writing one later
today.


Juergen

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