Re: [linux-linus test] 179511: regressions - trouble: fail/pass/starved

[Jan Beulich <jbeulich@xxxxxxxx>]

On 09.03.2023 07:58, osstest service owner wrote:
> flight 179511 linux-linus real [real]
> http://logs.test-lab.xenproject.org/osstest/logs/179511/
> 
> Regressions :-(
> 
> Tests which did not succeed and are blocking,
> including tests which could not be run:
>  test-amd64-amd64-pair        25 guest-start/debian       fail REGR. vs. 
> 178042
>  test-amd64-amd64-freebsd12-amd64 16 guest-saverestore    fail REGR. vs. 
> 178042
>  test-amd64-amd64-xl-credit1  18 guest-localmigrate       fail REGR. vs. 
> 178042
>  test-amd64-amd64-xl-multivcpu 14 guest-start             fail REGR. vs. 
> 178042
>  test-amd64-amd64-xl-pvshim   18 guest-localmigrate       fail REGR. vs. 
> 178042
>  test-amd64-amd64-xl-shadow   18 guest-localmigrate       fail REGR. vs. 
> 178042
>  test-amd64-amd64-xl          14 guest-start              fail REGR. vs. 
> 178042

While the xen-boot failure looks to be resolved now, there's at least
one further regression: Many instances of

(XEN) common/grant_table.c:2982:d0v3 copy beyond page area

can now be seen, which I expect are related to the test failure here.
Recent netback changes look benign, so it could be the sole recent
netfront one ("drivers: net: turn on XDP features") or something
elsewhere in the kernel (but presumably still in networking code).
The failure (and log messages) also ...

> test-amd64-amd64-freebsd11-amd64 13 guest-start          fail REGR. vs. 178042

... occurring for freebsd suggests against the netfront change, though.
In any event ...

>  test-arm64-arm64-xl          14 guest-start              fail REGR. vs. 
> 178042

... the issue looks to be arch-independent.

Jan