U-Boot CI error, unable to reproduce locally

[Marek Behun]

On Sat, 6 Mar 2021 21:11:34 -0500
Tom Rini <trini at konsulko.com> wrote:

> On Sun, Mar 07, 2021 at 02:27:33AM +0100, Marek Behun wrote:
> 
> > Hello Tom,
> > 
> > I seem to run into an error on Azure's CI for U-Boot that I cannot
> > reproduce locally.
> > 
> > It concerns my LTO work https://github.com/u-boot/u-boot/pull/57
> > 
> > The test
> >   u-boot.u-boot (test.py xilinx_zynq_virt)
> > is failing with this log
> > https://dev.azure.com/u-boot/a1096300-2999-4ec4-a21a-4c22075e3771/_apis/build/builds/1936/logs/283
> > 
> > The error seems to be
> >   make[3]: *** read jobs pipe: No such file or directory.  Stop.
> >   lto-wrapper: fatal error: make returned 2 exit status
> > as if make's jobserver died, or something.
> > 
> > But when I build with buildman on my local machine, everything is OK.  
> 
> Seems like there's still some build races on fast machines?
> 

Can this happen even if only 2 jobs are used? According to that log -j2
was used.