Re: pkg/45444

["Jonathan Perkin" <jperkin%joyent.com@localhost>]

The following reply was made to PR pkg/45444; it has been noted by GNATS.

From: "Jonathan Perkin" <jperkin%joyent.com@localhost>
To: <gnats-bugs%NetBSD.org@localhost>
Cc: 
Subject: Re: pkg/45444
Date: Fri, 8 Jun 2012 14:46:00 +0100

 Ok, looking further at the truss output, the difference is that the
 broken case doesn't vfork, whereas the working one does:
 
   Working (PATH=/usr/bin):
 
     vforkx(0)
     ..
     vforkx()
     ..
     execve("/usr/xpg4/bin/sh", 0x0808A4E0, 0x08047CC4)  argc = 3
      argv: /usr/xpg4/bin/sh -c
       /tmp/pkgsrc-xpg4/bmake/SunOS/bmake -f 
/tmp/pkgsrc-xpg4/bmake/unit-tests/dotwait -j4 cycle | grep -v "^--- "
     ..
     execve("/usr/bin/amd64/ksh93", 0x08047C98, 0x08047CA8)  argc = 3
      argv: /usr/xpg4/bin/sh -c
       /tmp/pkgsrc-xpg4/bmake/SunOS/bmake -f 
/tmp/pkgsrc-xpg4/bmake/unit-tests/dotwait -j4 cycle | grep -v "^--- "
     ..
     forkx(0)
     ..
     forkx()
     ..
     vforkx(0)
     ..
     execve("/tmp/pkgsrc-xpg4/bmake/SunOS/bmake", 0x0049F430, 0x0049F5A8)  argc 
= 5
      argv: /tmp/pkgsrc-xpg4/bmake/SunOS/bmake -f
       /tmp/pkgsrc-xpg4/bmake/unit-tests/dotwait -j4 cycle
     ..
     vforkx()
     ..
     execve("/usr/bin/grep", 0x0049F540, 0x0049F5C8)  argc = 3
      argv: grep -v ^---
 
   Broken (PATH=/usr/xpg4/bin:/usr/bin):
 
     vforkx(0)
     ..
     vforkx()
     ..
     execve("/usr/xpg4/bin/sh", 0x0808A4E0, 0x08047CB4)  argc = 3
      argv: /usr/xpg4/bin/sh -c
       /tmp/pkgsrc-xpg4/bmake/SunOS/bmake -f 
/tmp/pkgsrc-xpg4/bmake/unit-tests/dotwait -j4 cycle | grep -v "^--- "
     ..
     execve("/usr/bin/amd64/ksh93", 0x08047C88, 0x08047C98)  argc = 3
      argv: /usr/xpg4/bin/sh -c
       /tmp/pkgsrc-xpg4/bmake/SunOS/bmake -f 
/tmp/pkgsrc-xpg4/bmake/unit-tests/dotwait -j4 cycle | grep -v "^--- "
     ..
     forkx(0)
     ..
     forkx()
     ..
     execve("/tmp/pkgsrc-xpg4/bmake/SunOS/bmake", 0x0049F430, 0x0049F5A8)  argc 
= 5
      argv: /tmp/pkgsrc-xpg4/bmake/SunOS/bmake -f
       /tmp/pkgsrc-xpg4/bmake/unit-tests/dotwait -j4 cycle
 
 If you want more details the complete outputs are at
 
   http://www.netbsd.org/~jperkin/bmake-xpg4/truss-bin.out
   http://www.netbsd.org/~jperkin/bmake-xpg4/truss-xpg4.out
 
 truss-bin='PATH=/usr/bin', truss-xpg4='PATH=/usr/xpg4/bin:/usr/bin'.
 
 Regards,
 
 -- 
 Jonatha Perkin  -  Joyent, Inc.  -  www.joyent.com