public inbox for cygwin@cygwin.com
 help / color / mirror / Atom feed
From: Noel Grandin <noelgrandin@gmail.com>
To: Ken Brown <kbrown@cornell.edu>,
	cygwin@cygwin.com, magnus.ihse.bursie@oracle.com
Subject: Re: GNU make losing jobserver tokens
Date: Tue, 22 Mar 2022 08:54:50 +0200	[thread overview]
Message-ID: <1a25a77b-b1de-edc0-974f-937e914d05fd@gmail.com> (raw)
In-Reply-To: <09d8cb84-b3e3-0760-2245-0f3d2154c023@cornell.edu>

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.)
>>

Hi

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.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ddad21d3e99c743a3aa473121dc5561679e26bb
https://lkml.org/lkml/2019/12/18/1064

Regards, Noel Grandin



  reply	other threads:[~2022-03-22  6:54 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-21 14:28 Magnus Ihse Bursie
2022-03-21 15:09 ` Ken Brown
2022-03-22  6:54   ` Noel Grandin [this message]
2022-03-22 17:52     ` GNU make losing jobserver tokens in pipes Brian Inglis
2022-03-22 19:38   ` checking cyg version (was Re: GNU make losing jobserver tokens) L A Walsh
2022-03-22 21:58     ` Adam Dinwoodie
2022-03-22 23:06     ` Mark Geisert
2022-03-23 17:47       ` Samuel Lelièvre
2022-03-23  6:24 ` GNU make losing jobserver tokens Roumen Petrov
2022-04-01  8:45 ` Takashi Yano
2022-04-27 14:13   ` Takashi Yano
2022-04-28 13:42     ` Ken Brown
2022-04-28 14:09       ` Corinna Vinschen
2022-04-28 15:01         ` Takashi Yano
2022-04-28 15:32           ` Corinna Vinschen
2022-04-29  9:10             ` Takashi Yano
2022-04-30 21:51               ` Ken Brown
2022-05-01  0:51                 ` Takashi Yano

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1a25a77b-b1de-edc0-974f-937e914d05fd@gmail.com \
    --to=noelgrandin@gmail.com \
    --cc=cygwin@cygwin.com \
    --cc=kbrown@cornell.edu \
    --cc=magnus.ihse.bursie@oracle.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).