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- From: Rocky Rhodes <rhodes@sgi.com>
- To: "'James Bigler'" <bigler@cs.utah.edu>
- Cc: manta@sci.utah.edu
- Subject: RE: [MANTA] bad exit from bin/manta on Altix
- Date: Wed, 25 May 2005 13:55:11 -0700
It still fails the same way on exit.
Another clue (red herring?) is that the "Incorrect Phase" error message is
coming from either libffio.so or libeag_ffio.so on the Altix. These are the
only two .so files in /usr/lib that contain this string.
Rocky
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-----Original Message-----
>
From: owner-manta@sci.utah.edu [mailto:owner-manta@sci.utah.edu] On Behalf
>
Of James Bigler
>
Sent: Wednesday, May 25, 2005 11:08 AM
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Cc: manta@sci.utah.edu
>
Subject: Re: [MANTA] bad exit from bin/manta on Altix
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>
Rocky,
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Can you try something for me? The only thread code that is specific to
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the altix is the barrier code. In Thread_pthread.cc there are a few
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places that use __ia64__. Could you replace these with __ia64_noway__
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to see if you still have problems (I want to not compile the ia64
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specific code here)?
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>
Thanks
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James
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>>>I had tried older versions of the main trunk and didn't have any luck
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>>>isolating a change. I tried versions back to 308 that all failed
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>>
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>>similarly,
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>>
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>>>and version 300 doesn't build for me. It has probably always been this
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>>
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>>way
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>>
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>>>and I just had this environment variable set when I tried it before.
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>>>
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>>> Rocky
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>>>
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>>>
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>>>
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>>>>-----Original Message-----
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>>>>From: owner-manta@sci.utah.edu [mailto:owner-manta@sci.utah.edu] On
>
>>
>
>>Behalf
>
>>
>
>>>>Of James Bigler
>
>>>>Sent: Tuesday, May 24, 2005 7:59 PM
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>>>>Cc: manta@sci.utah.edu
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>>>>Subject: Re: [MANTA] bad exit from bin/manta on Altix
>
>>>>
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>>>>You could try checking out an older version and see if it happens.
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>>>>
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>>>>The Thread_pthread.cc file is pretty hairy. The altix is the only
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>>>>machine we've had complaints about, though. Should this be showing up
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>>>>in other modern distributions? What do the SGI docs say about that?
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>>>>
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>>>>James
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>>>>
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>>>>Rocky Rhodes wrote:
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>>>>
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>>>>
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>>>>>If I run "bin/manta -bench 10 10 -imagedisplay null -np 2" on an
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Altix,
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>>>>>the program exits in a bad way, complaining of "ERROR: Incorrect
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Phase"
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>>>>>and then telling me that "Thread 'idle or main'" got a SIGSEGV. If I
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>>>>>run this again with the LD_ASSUME_KERNEL environment variable set to
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>>>>>"2.4.19" it exits cleanly.
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>>>>>
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>>>>>
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>>>>>
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>>>>>SGI's documentation says that this behavior is indicative of an
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>>>>>application "which depends on behaviors in which the LinuxThreads
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>>>>>implementation deviates from the POSIX standard". The
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LD_ASSUME_KERNEL
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>>>>>environment variable forces the application to use the old
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LinuxThreads
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>>>>>implementation rather than NPTL (Native POSIX Thread Library). I
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think
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>>>>>the new thread package was included with ProPack 3.0 on the Altix.
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You
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>>>>>might not see this problem on your Altix if it is running an earlier
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>>>>>version of the system software.
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>>>>>
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>>>>>
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>>>>>
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>>>>>I thought I had tried this earlier and didn't have this problem, but
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as
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>>>>>it is just an environment variable, now I'm wondering if this has
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>>
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>>always
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>>
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>>>>>been broken this way. Is anyone aware of any changes in the pthread
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>>>>>code made over the last week or so that may have changed this
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behavior?
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>>>>>Does anyone feel more qualified than I do about mucking around in
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this
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>>>>>code and trying to understand what goes on when the program exits?
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>>>>>
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>>>>>
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>>>>>
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>>>>> Rocky
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>>>>>
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>>>>>
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>>>>>
- [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/24/2005
- <Possible follow-up(s)>
- RE: [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/25/2005
- RE: [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/25/2005
- RE: [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/25/2005
- RE: [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/25/2005
- RE: [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/25/2005
- RE: [MANTA] bad exit from bin/manta on Altix, Rocky Rhodes, 05/25/2005
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