Windows build gets stuck, if parallelism greater than 1

Luboš Luňák l.lunak at
Sat Nov 20 11:04:59 UTC 2021

On Saturday 20 of November 2021, Ilmari Lauhakangas wrote:
> My mentee is having an issue, where plain make gets stuck in
> [build ECH] CustomTarget/instsetoo_native/setup/version.ini
> or
> [build MOD] instsetoo_native
> if parallelism is 2 or more. Default would be "-j 8" on his machine. He
> has 16GB RAM available. Windows is on bare metal. Any tips for
> troubleshooting?

 The last line printed by parallel make is usually irrelevant, it can be stuck 
by another job that started before. So it's necessary to check processes 
launched by make (on Linux I'd do 'pstree -pal', I don't know if that works 
in cygwin).

 But first I'd check if this isn't the recent cygwin problem that was causing 
make getting stuck.

 Luboš Luňák
 l.lunak at

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