On Fri, 14 Nov 2003 11:54, Russell Coker <[EMAIL PROTECTED]> wrote:
> On Thu, 13 Nov 2003 10:59, Adam Heath <[EMAIL PROTECTED]> wrote:
> > Something in your login chain is setting SIGCHLD to ignore. Check your
> > shell, terminal, etc.
>
> Thanks for the information.
>
> I am using pam 0.77 that I compiled myself (Debian is still at 0.76). 0.77
> changes the code for running unix_chkpwd to set SIGCHLD to ignore, it sets
> it back again later but there seems to be a bug in this code.
I've attached a patch from Red Hat to solve this pam bug, it will need to be
included when we get Debian packages of pam 0.77.
Specifying SIG_IGN for SIGCHLD (which by default, is ignored) is not the same
as specifying SIG_DFL. See the NOTES section of wait(2) for the skinny on this.
--- Linux-PAM-0.77/modules/pam_unix/support.c 2003-07-09 00:15:29.000000000 -0400
+++ Linux-PAM-0.77/modules/pam_unix/support.c 2003-07-09 00:15:41.000000000 -0400
@@ -597,7 +597,7 @@
* The "noreap" module argument is provided so that the admin can
* override this behavior.
*/
- sighandler = signal(SIGCHLD, SIG_IGN);
+ sighandler = signal(SIGCHLD, SIG_DFL);
}
/* fork */
