miredo crashes due to behaviour disallowed by libdispatch

[arrigo (Arrigo)]

Building miredo on a MacBook Air 10" running OS X 10.6.7 fails as it builds with arch=x86_64:

[miredo -V]
Miredo: Teredo IPv6 tunneling software 1.2.2 (i386-apple-darwin10.7.0)
built Apr 15 2011 on snowflake.local (i386-apple-darwin10.7.0)
Configured with: ./configure  '--prefix=/opt/local' '--enable-miredo-user' 'CC=/usr/bin/gcc-4.2' 'CFLAGS=-pipe -O2 -arch x86_64' 'LDFLAGS=-L/opt/local/lib -arch x86_64' 'CPPFLAGS=-I/opt/local/include'

but:

snowflake:~ arrigo$ arch
i386
snowflake:~ arrigo$ sudo miredo
Password:
Illegal instruction

[jmroot (Joshua Root)]

Please remember to cc the maintainer.

[jmroot (Joshua Root)]

Every MacBook Air has an x86_64 processor BTW. If you need proof, run:

sysctl hw.cpu64bit_capable hw.optional.x86_64

[arrigo (Arrigo)]

Replying to jmr@…:

Every MacBook Air has an x86_64 processor BTW. If you need proof, run:

sysctl hw.cpu64bit_capable hw.optional.x86_64

I don't doubt it but not all steppings support the same set of instructions (or rather of extensions such as SSE3), I am not sure how but obviously the compiler is generating code which is invalid for this processor. It seems to run just fine on my MacPro.

[arrigo (Arrigo)]

crash file produced by ReportCrash

[arrigo (Arrigo)]

I went back to my MacPro and the latest version of miredo does not run either, from /var/log/system.log after running "sudo port load miredo":

Jun  8 16:46:33 archimede sudo[709]: arrigo : TTY=ttys000 ; PWD=/Users/arrigo ; USER=root ; COMMAND=/opt/local/bin/port install miredo
Jun  8 16:48:40 archimede miredo[20324]: BUG in libdispatch: 10J869 - 1986 - 0x4
Jun  8 16:48:41 archimede ReportCrash[20326]: Saved crash report for miredo[20324] version ??? (???) to /Users/arrigo/Library/Logs/DiagnosticReports/miredo_2011-06-08-164841_archimede.crash
Jun  8 16:48:43 archimede sudo[20327]: arrigo : TTY=ttys000 ; PWD=/Users/arrigo ; USER=root ; COMMAND=/opt/local/sbin/miredo
Jun  8 16:48:43 archimede miredo[20327]: BUG in libdispatch: 10J869 - 1986 - 0x4
Jun  8 16:48:44 archimede com.apple.ReportCrash.Root[20328]: 2011-06-08 16:48:44.019 ReportCrash[20328:2903] Saved crash report for miredo[20327] version ??? (???) to /Library/Logs/DiagnosticReports/miredo_2011-06-08-164844_localhost.crash
Jun  8 16:48:47 archimede sudo[20329]: arrigo : TTY=ttys000 ; PWD=/Users/arrigo ; USER=root ; COMMAND=/opt/local/bin/port load miredo
Jun  8 16:48:48 archimede /opt/local/sbin/miredo[20332]: BUG in libdispatch: 10J869 - 1986 - 0x4
Jun  8 16:48:48 archimede com.apple.launchd[1] (org.macports.miredo): Throttling respawn: Will start in 10 seconds
Jun  8 16:48:48 archimede com.apple.ReportCrash.Root[20328]: 2011-06-08 16:48:48.127 ReportCrash[20328:1407] Saved crash report for miredo[20332] version ??? (???) to /Library/Logs/DiagnosticReports/miredo_2011-06-08-164848_localhost.crash
Jun  8 16:48:50 archimede miredo[20333]: BUG in libdispatch: 10J869 - 1986 - 0x4
Jun  8 16:48:50 archimede ReportCrash[20326]: Saved crash report for miredo[20333] version ??? (???) to /Users/arrigo/Library/Logs/DiagnosticReports/miredo_2011-06-08-164850_archimede.crash
Jun  8 16:48:58 archimede /opt/local/sbin/miredo[20337]: BUG in libdispatch: 10J869 - 1986 - 0x4
Jun  8 16:48:58 archimede com.apple.launchd[1] (org.macports.miredo): Throttling respawn: Will start in 10 seconds
Jun  8 16:48:58 archimede com.apple.ReportCrash.Root[20328]: 2011-06-08 16:48:58.200 ReportCrash[20328:2d0b] Saved crash report for miredo[20337] version ??? (???) to /Library/Logs/DiagnosticReports/miredo_2011-06-08-164858_localhost.crash
Jun  8 16:49:08 archimede /opt/local/sbin/miredo[20340]: BUG in libdispatch: 10J869 - 1986 - 0x4
Jun  8 16:49:08 archimede com.apple.launchd[1] (org.macports.miredo): Throttling respawn: Will start in 10 seconds
Jun  8 16:49:08 archimede com.apple.ReportCrash.Root[20328]: 2011-06-08 16:49:08.236 ReportCrash[20328:140b] Saved crash report for miredo[20340] version ??? (???) to /Library/Logs/DiagnosticReports/miredo_2011-06-08-164908_localhost.crash
Jun  8 16:49:18 archimede sudo[20341]: arrigo : TTY=ttys000 ; PWD=/Users/arrigo ; USER=root ; COMMAND=/opt/local/bin/port unload miredo

The crash file is attached.

[jmroot (Joshua Root)]

So actually the software is just doing it wrong:

BUG IN CLIENT OF LIBDISPATCH: Do not close random Unix descriptors

[jmroot (Joshua Root)]

The problem is in the init_security function in main.c:

	 * We close all file handles, except 0, 1 and 2.

You might want to report a bug upstream.

[mf2k (Frank Schima)]

mnick has retired.

[l2dy (Zero King)]

I'm not able to replicate the crash so could anyone test the fix? I'll close this ticket as wontfix if no feedback received.

Append: Had another patch to apply and changed my mind.

[l2dy (Zero King)]

In 3fe5cd1f/macports-ports:

miredo: fix crash and update patch

Fixes: #29148