| IDL (and others) fails on 6.5.10f [message #23025] |
Tue, 02 January 2001 15:58  |
roberson
Messages: 5
Registered: May 1998
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Junior Member |
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We have found an IRIX 6.5.10(f) error that renders some applications
[e.g., RSI's IDL] nearly useless.
*Do not upgrade to 6.5.10f if you need IDL*
More specifically, the IRIX bug has to do with using
brk() or sbrk() to return memory to IRIX. Most programs simply allow
their datasegment to grow without ever shrinking, but a few programs
such as IDL actively manage their memory. These programs may fail
if more than 0x0001f000 bytes (126976) are being returned.
I have a simple test case for this, and I have an open case with
SGI, and will open an RSI case in a moment.
Email me if you want the test case; roberson@ibd.nrc.ca and ask for 'brk2.c'.
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| Re: IDL (and others) fails on 6.5.10f [message #23124 is a reply to message #23025] |
Tue, 02 January 2001 19:07  |
roberson
Messages: 5
Registered: May 1998
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Junior Member |
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In article <92tpu8$74r$1@canopus.cc.umanitoba.ca>,
Walter Roberson <roberson@ibd.nrc.ca> wrote:
:We have found an IRIX 6.5.10(f) error that renders some applications
:[e.g., RSI's IDL] nearly useless.
:*Do not upgrade to 6.5.10f if you need IDL*
:More specifically, the IRIX bug has to do with using
:brk() or sbrk() to return memory to IRIX.
This problem was new to SGI, but they have isolated the problem
and found a work-around already. To get around this problem,
remove the eoe.sw.jlimits subsystem, autoconfig, and reboot.
[Note: be sure to do the autoconfig yourself, as IRIX does not
automatically notice the removal of the kernel object file.]
So, if you do not need job limits, then you should be able to
use IDL on IRIX 6.5.10f.
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