708988 – sys-devel/make-4.2.1-r4: Known race will become problematic with Linux 5.6

Bug 708988 - sys-devel/make-4.2.1-r4: Known race will become problematic with Linux 5.6

Summary: sys-devel/make-4.2.1-r4: Known race will become problematic with Linux 5.6

Status:	RESOLVED INVALID

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	Current packages (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Gentoo's Team for Core System packages

URL:
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Depends on:
Blocks:

Reported:	2020-02-10 15:24 UTC by Daniel Santos
Modified:	2020-02-10 15:51 UTC (History)
CC List:	0 users

See Also:	664632
Package list:
Runtime testing required:	---

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Description Daniel Santos 2020-02-10 15:24:27 UTC

Linus has added a nice optimization for those of us with lots of CPU cores/threads/ALUs, but testing reveals that it tends to express the (known) race condition in GNU make 4.2.1.  As such, an ebuild warning, uname -r check, or DEPEND restriction should probably be added to sys-devel/make.  Or maybe ">=sys-devel/make-4.3" added to gentoo-sources-5.6?  It's currently at RC1.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ddad21d3e99c743a3aa473121dc5561679e26bb

Comment 1 Mike Gilbert gentoo-dev

2020-02-10 15:51:07 UTC

I'm pretty sure we already have the necessary patch backported to make-4.2.1. See bug 664632.