lib/44010: "sbrk: grow 0xb3ba2000 failed, error = 12" (due to setenv changes?)

[yamt%NetBSD.org@localhost]

>Number:         44010
>Category:       lib
>Synopsis:       "sbrk: grow 0xb3ba2000 failed, error = 12" (due to setenv 
>changes?)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 29 07:20:00 +0000 2010
>Originator:     YAMAMOTO Takashi
>Release:        NetBSD current
>Organization:
        
>Environment:
        
        
System: NetBSD current
Architecture: i386
Machine: i386
>Description:
        recently i'm getting the following message whenever running suid
        binaries.  (in the following example, sudo)
        although i haven't investigated yet, my guess is that it's related
        to the recent setenv changes, which seems to make ld.so call malloc
        via unsetenv in the case of !_rtld_trust.

>How-To-Repeat:
        with DEBUG kernel,

        nfskuro% sudo echo foo
        sbrk: grow 0xb3ba2000 failed, error = 12
        foo
        nfskuro% 
>Fix:
        

>Unformatted: