Red Hat Bugzilla – Bug 142691
Make hangs with large values of parallel jobs (-j)
Last modified: 2007-11-30 17:10:56 EST
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User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0;
Description of problem:
Passing make a large number of jobs, either as "-j n" or as "--
jobs==n" will hang make for large values of "n". The magic number
appears to be 4098 on my test system. "make -j 4097" works
correctly. "make -j 4098" hangs.
Note that make itself hangs - this isn't a problem with trying to
spawn too many processes. Make will hang even when all targets are up-
This bug has been present since at least RH6.2
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. "make -j 9999" - make hangs.
Actual Results: Make hangs.
Expected Results: Make should either give an error message, use a
smaller value for -j with a warning or work correctly.
*** Bug 17374 has been marked as a duplicate of this bug. ***
Well, it hurts, then don't do it ;)
Anyway, make-3.80-6 in tomorrow's rawhide should disregard -jN for N bigger