port-xen/46263: some programs don't work in xen3pae-domU

[ignatios%cs.uni-bonn.de@localhost]

>Number:         46263
>Category:       port-xen
>Synopsis:       some programs don't work in xen3pae-domU (segv et al.)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-xen-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 27 08:10:00 +0000 2012
>Originator:     Ignatios Souvatzis
>Release:        NetBSD 5.1.0_PATCH
>Organization:
computer science department, university of Bonn, Germany
>Environment:
System: NetBSD jaguar-gamma 5.1.0_PATCH NetBSD 5.1.0_PATCH (XEN3PAE_DOMU) #1: 
Fri Sep 23 10:10:12 CEST 2011 
ignatios%random84.cs.uni-bonn.de@localhost:/var/itch/obj/5i386/sys/arch/i386/compile/XEN3PAE_DOMU
 i386
Architecture: i386
Machine: i386

> ls -l *core*
-rw-r--r--  1 ignatios  25   2956320 Dec 23 18:23 j3dcore.jar
-rw-------  1 ignatios  25     95736 Mar 27 09:41 mailwrapper.core
-rw-------  1 ignatios  25  12519916 Mar 22 16:21 npviewer.bin.core
-rw-------  1 ignatios  25   1551648 Mar 22 15:53 xfig.core
% ldd `which mailwrapper`
/usr/sbin/mailwrapper:
        -lc.12 => /usr/lib/libc.so.12


>Description:

A) mailq (actually mailwrapper) crashes before executing nullmailer's 
   mailq.

% mailq
Segmentation fault(core dumped)
% gdb `which mailwrapper` mailwrapper.core
GNU gdb 6.5
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386--netbsdelf"...(no debugging symbols found)

Reading symbols from /usr/lib/libc.so.12...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libc.so.12
Reading symbols from /usr/libexec/ld.elf_so...(no debugging symbols 
found)...done.
Loaded symbols for /usr/libexec/ld.elf_so

Core was generated by `mailwrapper'.
Program terminated with signal 11, Segmentation fault.
#0  0xbb71c929 in strspn () from /usr/lib/libc.so.12
(gdb) where
#0  0xbb71c929 in strspn () from /usr/lib/libc.so.12
#1  0x08048aea in main ()
(gdb) disas strspn
...
0xbb71c906 <strspn+142>:        lea    0xffff07ac(%ebx),%esi
0xbb71c90c <strspn+148>:        mov    %dl,%al
0xbb71c90e <strspn+150>:        shr    $0x3,%al
0xbb71c911 <strspn+153>:        movzbl %al,%eax
0xbb71c914 <strspn+156>:        and    $0x7,%edx
0xbb71c917 <strspn+159>:        mov    (%esi,%edx,4),%edx
---Type <return> to continue, or q <return> to quit---
0xbb71c91a <strspn+162>:        or     %dl,0xffffffd0(%ebp,%eax,1)
0xbb71c91e <strspn+166>:        mov    0x1(%ecx),%dl
0xbb71c921 <strspn+169>:        inc    %ecx
0xbb71c922 <strspn+170>:        test   %dl,%dl
0xbb71c924 <strspn+172>:        jne    0xbb71c90c <strspn+148>
0xbb71c926 <strspn+174>:        mov    0xffffffc0(%ebp),%eax
0xbb71c929 <strspn+177>:        mov    (%eax),%cl
0xbb71c92b <strspn+179>:        test   %cl,%cl
0xbb71c92d <strspn+181>:        je     0xbb71c971 <strspn+249>
0xbb71c92f <strspn+183>:        mov    %cl,%al
0xbb71c931 <strspn+185>:        shr    $0x3,%al
0xbb71c934 <strspn+188>:        movzbl %al,%eax

B) xdvi sometimes reports that some glyphs couldn't be rendered (by t1lib)
and renders them as whitespace, sometimes complains about a segmentation
violation, sometimes works fine. All with the same .dvi!
The affected glyphs are different each time!

% xdvi-original fxtbook.dvi
xdvi-xaw: Error: T1lib failed for character 0x69 `i': Rasterization Aborted. 
Replacing by whitespace.
xdvi-xaw: Error: T1lib failed for character 0x64 `d': Rasterization Aborted. 
Replacing by whitespace.
% pkg_info t1lib
Information for t1lib-5.1.2nb6: (...)
Required by:
xdvik-22.84.16nb2
% ldd /usr/pkg/bin/xdvi-xaw
/usr/pkg/bin/xdvi-xaw:
        -lkpathsea.6 => /usr/pkg/lib/libkpathsea.so.6
        -lc.12 => /usr/lib/libc.so.12
        -lt1.5 => /usr/pkg/lib/libt1.so.5
        -lm.0 => /usr/lib/libm.so.0
        -lXaw7.7 => /usr/pkg/lib/libXaw7.so.7
        -lXmu.6 => /usr/pkg/lib/libXmu.so.6
        -lXt.6 => /usr/pkg/lib/libXt.so.6
        -lSM.6 => /usr/pkg/lib/libSM.so.6
        -lICE.6 => /usr/pkg/lib/libICE.so.6
        -lX11.6 => /usr/pkg/lib/libX11.so.6
        -lxcb.1 => /usr/pkg/lib/libxcb.so.1
        -lXau.6 => /usr/pkg/lib/libXau.so.6
        -lXdmcp.6 => /usr/pkg/lib/libXdmcp.so.6
        -lXext.6 => /usr/pkg/lib/libXext.so.6
        -lXpm.4 => /usr/pkg/lib/libXpm.so.4

The same pkg binaries work fine on a standalone machine with GENERIC
kernel.

>How-To-Repeat:
        send a mail to test the mail system, check queue
        test xdvi, which is mission critical on the freshly installed system
>Fix:
        Use a standalone machine with the same binaries.