Bug#1026445: mutter: test failure on armhf and sometimes armel: ../../src/xcb_io.c:626: _XAllocID: Assertion `ret != inval_id' failed

[Diederik de Haas]

Hi Simon,

On Tue, 20 Dec 2022 11:47:10 +0000 Simon McVittie <smcv at debian.org> wrote:
> Source: mutter
> Version: 43.2-1
> Tags: ftbfs
> 
> Recent uploads of mutter have had a FTBFS on armhf and sometimes armel,
> with this test failure in "mutter:core+mutter/wayland / xwayland":
> 
> > mutter-xwayland: ../../src/xcb_io.c:626: _XAllocID: Assertion 
> > `ret != inval_id' failed.

I assume this is a PEBKAC issue, but I got this error too in a different 
condition and as such it might help with this bug. If not, please ignore.

I cloned mutter's Salsa repo and added Salsa's default CI pipeline and it 
consistently fails on the 'build i386' job in the same test case 
("mutter:core+mutter/wayland / xwayland") with the same assertion failure.
See https://salsa.debian.org/diederik/mutter/-/jobs/4063218

I _think_ Salsa's CI runners run on amd64 and thus fails on an i386 job.
I also _think_ that armhf and armel are (often?) build on an arm64 native 
host, but this could be dependent on which specific host it happens to get 
build and thus cause the inconsistent error/non-error situation?

HTH and if not, sorry for the noise,
  Diederik
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