From: Jarkko Hietaniemi <jhi@iki.fi>
Date: Thu, 27 Sep 2001 13:39:39 +0000 (+0000)
Subject: Document the nss_delete core dump workaround for HP-UX
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=1081c3b9ad8b1dc348e105ae0173a124e71062d1;p=p5sagit%2Fp5-mst-13.2.git

Document the nss_delete core dump workaround for HP-UX
and Solaris, bug IDs 20010805.018 and 20010629.004.

p4raw-id: //depot/perl@12247
---

diff --git a/README.hpux b/README.hpux
index fcc9d02..37322a3 100644
--- a/README.hpux
+++ b/README.hpux
@@ -348,6 +348,33 @@ system.
 In general, a value of 256MB (or "256*1024*1024") is sufficient for
 Perl to compile at maximum optimization.
 
+=head1 nss_delete core dump from op/pwent or op/grent
+
+You may get a bus error core dump from the op/pwent or op/grent
+tests. If compiled with -g you will see a stack trace much like
+the following:
+
+  #0  0xc004216c in  () from /usr/lib/libc.2
+  #1  0xc00d7550 in __nss_src_state_destr () from /usr/lib/libc.2
+  #2  0xc00d7768 in __nss_src_state_destr () from /usr/lib/libc.2
+  #3  0xc00d78a8 in nss_delete () from /usr/lib/libc.2 
+  #4  0xc01126d8 in endpwent () from /usr/lib/libc.2 
+  #5  0xd1950 in Perl_pp_epwent () from ./perl
+  #6  0x94d3c in Perl_runops_standard () from ./perl
+  #7  0x23728 in S_run_body () from ./perl
+  #8  0x23428 in perl_run () from ./perl
+  #9  0x2005c in main () from ./perl
+
+The key here is the C<nss_delete> call.  One workaround for this
+bug seems to be to create add to the file F</etc/nsswitch.conf>
+(at least) the following lines
+
+  group: files 
+  passwd: files
+
+Whether you are using NIS does not matter.  Amazingly enough,
+the same bug affects also Solaris.
+
 =head1 AUTHOR
 
 Jeff Okamoto <okamoto@corp.hp.com>
diff --git a/README.solaris b/README.solaris
index 2fbd251..627bc73 100644
--- a/README.solaris
+++ b/README.solaris
@@ -438,6 +438,10 @@ Building in /tmp sometimes shows this behavior.  The
 test suite detects if you are building in /tmp, but it may not be able
 to catch all tmpfs situations.
 
+=head2 nss_delete core dump from op/pwent or op/grent
+
+See L<perlhpux/"nss_delete core dump from op/pwent or op/grent">.
+
 =head1 PREBUILT BINARIES OF PERL FOR SOLARIS.
 
 You can pick up prebuilt binaries for Solaris from