Bug 401465 – media-video/mplayer-1.0_rc4_p20120128 crashes with keyboard controls

• Status: RESOLVED INVALID
• Product: Gentoo Linux

[Description José Romildo Malaquias 2012-01-30 10:29:57 UTC]

Created attachment 300351 [details]
Output of "emerge --info"

mplayer from recent ebuilds (1.0_rc4_p20120105, 1.0_rc4_p20120109, 1.0_rc4_p20120128) crashes when trying to use keyboard controls, like LEFT, RIGHT, UP, DOWN, o, and several others:


Player interrupted by signal 4 in module: filter_video
- MPlayer crashed by an 'Illegal Instruction'.
  It usually happens when you run it on a CPU different than the one it was
  compiled/optimized for.
  Verify this!
- MPlayer crashed by bad usage of CPU/FPU/RAM.
  Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and
  disassembly. Details in DOCS/HTML/en/bugreports_what.html#bugreports_crash.
- MPlayer crashed. This shouldn't happen.
  It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
  gcc version. If you think it's MPlayer's fault, please read
  DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
  won't help unless you provide this information when reporting a possible bug.

[Comment 1 Alexis Ballier 2012-02-01 11:53:04 UTC]

please attach a backtrace as described in:
http://www.gentoo.org/proj/en/qa/backtraces.xml

and reopen, thanks!

[Comment 2 José Romildo Malaquias 2012-02-02 13:43:08 UTC]

Created attachment 300757 [details]
backtrace.log

[Comment 3 José Romildo Malaquias 2012-02-02 13:53:44 UTC]

I think I have found the problem: mplayer was compiled with the use flag "3dnowext" and the cpu is an Intel core i7, giving an incompatibility.

Recompiling mplayer without the "3dnowext" use flag fix the problem.

[Comment 4 Alexis Ballier 2012-02-02 13:54:42 UTC]

(In reply to comment #3)
> I think I have found the problem: mplayer was compiled with the use flag
> "3dnowext" and the cpu is an Intel core i7, giving an incompatibility.
> 
> Recompiling mplayer without the "3dnowext" use flag fix the problem.

closing as invalid then ;)

[Comment 5 José Romildo Malaquias 2012-02-02 13:57:18 UTC]

Interestingly, versions of mplayer prior to 1.0_rc4_p20120105 does not crash when compiled and run with the "3dnowext" use flag on a computer with a core i7 processor!

[Comment 6 Alexis Ballier 2012-02-02 14:05:24 UTC]

(In reply to comment #5)
> Interestingly, versions of mplayer prior to 1.0_rc4_p20120105 does not crash
> when compiled and run with the "3dnowext" use flag on a computer with a core i7
> processor!

thats probably because i removed the babysitting that was done in previous ebuilds :)
before, it ran a check on the running cpu to determine whether to build and use said extensions or not; now, if you enable it, you get it.