bugmake - Bugs: bug #16088, "make -r" causes...

 
 

bug #16088: "make -r" causes "virtual memory exhausted" error in make on AIX only

Submitter:  None
Submitted:  Tue 14 Mar 2006 10:21:47 AM UTC
   
 
Severity:  3 - Normal Item Group:  Bug
Status:  Duplicate Privacy:  Public
Assigned to:  None Open/Closed:  Closed
Component Version:  3.80 Operating System:  POSIX-Based
Fixed Release:  None Triage Status:  None
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Tue 14 Mar 2006 01:51:55 PM UTC, comment #1: 

This is a duplicate of bug #2888.  If you like you can try the latest release candidate; currently ftp://alpha.gnu.org/gnu/make/make-3.81rc1.tar.gz

Paul D. Smith <psmith>
Group administrator
Tue 14 Mar 2006 10:21:47 AM UTC, original submission:  

This bug causes make to fail on AIX only.

To recreate:

Create 2 makefiles, "Makefile", and "sub.mk"...

"Makefile" contents:

_________________________
default:
    make -r sub.mk
_________________________


"sub.mk" contents:

_________________________
default:
_________________________


Place both makefiles in the same directory, and then run, "make". You'll see an error like this:

_________________________
running sub.mk
make -r sub.mk
make[1]: Entering directory `/tmp'
make[1]: * virtual memory exhausted.  Stop.
make[1]: Leaving directory `/tmp'
make: * [default] Error 2
_________________________

It appears that the problem is that 'make' allocates space for structures to hold the built-in rules. However, when you run make with the "-r" flag to disable these built-in implicit rules, make still attempts to allocate space for them. Since the space required to hold zero built-in rules is zero bytes, it calls:

  malloc(0)

AIX doesn't like such a request, and the malloc fails. Other Unix and Linux platforms seemingly handle this abnormal condition more gracefully.

A temporary work-around is to add a rule such that 'make' mallocs >0 bytes. For example, by changing Makefile to that shown below, the problem is masked and the make continues:

_________________________
%.xxxxx: %.yyyyy

default:
    make -r sub.mk
_________________________





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Follow 2 latest changes.

Date Changed by Updated Field Previous Value => Replaced by
2006-03-14 psmith StatusNone Duplicate
    Open/ClosedOpen Closed

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