GNU make losing jobserver tokens in pipes

Brian Inglis
Tue Mar 22 17:52:03 GMT 2022

On 2022-03-22 00:54, Noel Grandin wrote:
> On 2022/03/21 5:09 pm, Ken Brown wrote:
>> On 3/21/2022 10:28 AM, Magnus Ihse Bursie wrote:
>>> We have had a long-standing issue with make losing jobserver tokens. 
>>> ("long-standing" here means for years, and years, at least since GNU 
>>> make 4.0, up to and including the current latest version in Cygwin.)

> It was not that long ago that Linus Torvalds found a bug in the Linux 
> kernel pipe implementation which caused GNU make to lose jobserver 
> tokens, so possibly researching that bug may shed some light on the 
> kinds of things that could be wrong with the Cygwin pipe code.

Perhaps add "in pipes" to subject to get that maintainer's attention?

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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