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Bug #3234

pthread - Respect RLIMIT_STACK for main thread

Added by mneumann 6 months ago. Updated 2 months ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
Feature request
Target version:
-
Start date:
04/25/2020
Due date:
% Done:

0%

Estimated time:

Description

The stack size of the main thread when pthread is used is limited to 4 MB (hard coded value).
This breaks, for example, the crystal compiler (www.crystal-lang.org).

The stack size of a process not using pthread is limited by RLIMIT_STACK. As soon as pthread is linked in,
the main thread's stack size is limited to 4 MB.

FreeBSD uses two environment variables LIBPTHREAD_BIGSTACK_MAIN and
LIBPTHREAD_SPLITSTACK_MAIN to control use of RLIMIT_STACK vs. the hard-coded
4MB and defaults to respect RLIMIT_STACK when none is specified.

This patch

https://leaf.dragonflybsd.org/~mneumann/patch-libthread_xu.diff

fixes the issue. Crystal compiles.


Files

patch-libthread_xu.diff (1.59 KB) patch-libthread_xu.diff mneumann, 04/25/2020 04:43 AM

History

#1

Updated by mneumann 2 months ago

  • Status changed from New to Resolved

Fixed in commit 4b29dd4bf14ecfcbe53cbc16a3a96e433c70d7fc

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