gnu/77818: GDB locks in wait4() when running applications

[Greg 'groggy' Lehey]

The following reply was made to PR gnu/77818; it has been noted by GNATS.

From: Greg 'groggy' Lehey <grog at FreeBSD.org>
To: Sean Farley <sean-freebsd at farley.org>
Cc: FreeBSD-gnats-submit at FreeBSD.org
Subject: Re: gnu/77818: GDB locks in wait4() when running applications
Date: Mon, 21 Feb 2005 14:12:45 +1030

 --3O1VwFp74L81IIeR
 Content-Type: text/plain; charset=us-ascii
 Content-Disposition: inline
 
 On Sunday, 20 February 2005 at 19:15:01 -0600, Sean Farley wrote:
 >
 >> Synopsis:       GDB locks in wait4() when running applications
 >
 >> Description:
 >
 > Whenever I run an application through the system's GDB, GDB locks in
 > wait4().  It does not matter if the application has debugging
 > information or not.  /bin/ls will lock GDB up for me until I type
 > Ctrl-C.
 
 Is this an SMP system?
 
 > Two systems of mine exhibit this behavior.  One has the binary
 > nvidia driver with a lot of changes in libmap.conf.  The other is
 > headless without a libmap.conf.
 
 I've found something similar with SMP systems only.  It wasn't as
 consistent as the way you describe, and I was able to work around the
 problem by turning off all but one CPU.  See kern/77537 for more
 details.
 
 Greg
 --
 See complete headers for address and phone numbers.
 
 --3O1VwFp74L81IIeR
 Content-Type: application/pgp-signature
 Content-Disposition: inline
 
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.2.6 (FreeBSD)
 
 iD8DBQFCGVi1IubykFB6QiMRAn1DAKCHmVcC9GzWgPlsgJTQ7CgfvZ/fcQCgiBfS
 oTVYzEkdypz0f8S2Hbe5iY4=
 =AIOY
 -----END PGP SIGNATURE-----
 
 --3O1VwFp74L81IIeR--