bugmake - Bugs: bug #56019, Decreased parallelization vs. Make...

 
 

bug #56019: Decreased parallelization vs. Make 3.82

Submitter:  <qwertial>
Submitted:  Thu 28 Mar 2019 09:55:55 AM UTC
   
 
Severity:  3 - Normal Item Group:  Bug
Status:  Duplicate Privacy:  Public
Assigned to:  None Open/Closed:  Closed
Component Version:  4.2.1 Operating System:  POSIX-Based
Fixed Release:  None Triage Status:  None
* Mandatory Fields

Add a New Comment Rich Markup
   

Sun 25 Aug 2019 05:24:31 AM UTC, comment #3: 

Thanks for verifying.

Paul D. Smith <psmith>
Group administrator
Sun 18 Aug 2019 02:47:03 PM UTC, comment #2: 

Commits for bug #51159 and bug #51400 together fix the problem for me:

commit 78b5fec6898c26956d00548427cda1101cb80f8a
Author: Paul Smith <psmith@gnu.org>
Date:   Sun Jul 9 18:44:17 2017 -0400

    [SV 51400] Only unblock fatal signals after child invocation


commit b552b05251980f693c729e251f93f5225b400714
Author: Paul Smith <psmith@gnu.org>
Date:   Sat Jun 3 16:20:51 2017 -0400

    [SV 51159] Use a non-blocking read with pselect to avoid hangs.


Both were picked by distros long ago, see e.g.: https://bugs.debian.org/890309

Anonymous
Sun 18 Aug 2019 08:17:45 AM UTC, comment #1: 

Hit the same bug in version 4.2.1 while building "allnoconfig" linux kernel.
For me bug triggers rarely, 1 in 30 cases.

It looks like the bug is fixed in the current git tree.

Anonymous
Thu 28 Mar 2019 09:55:55 AM UTC, original submission:  

This is a follow-up to this bug report: https://bugzilla.kernel.org/show_bug.cgi?id=203037

In short:

When compiling the Linux kernel (e.g. version 5.0) Make 3.82 keeps all four CPU cores busy while Make 4.2.1 often spawns just a single GCC instance.

That's a bug.

<qwertial>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:
   
   
Comment:
   

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by psmith (Posted a comment)
  • -email is unavailable- added by qwertial (Submitted the item)
  •  

    There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.

    Only logged-in users can vote.

     

    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-08-25 psmith StatusNone Duplicate
        Open/ClosedOpen Closed

    Back to the top

    Powered by Savane 3.13-4448.
    Corresponding source code