Memory allocation problems on RHEL 6.3 kernel version 2.6.32-279.el6.x86_64

[shhuiw]

At 2014-07-10 02:08:04, "Rik van Riel" <riel at surriel.com> wrote: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > >On 07/09/2014 08:23 AM, Amit Agarwal wrote: >> Hi All, >> >> We are running a 32 bit application on RHEL6.3-64 bit OS with >> kernel version 2.6.32-279.el6.x86_64. >> >> While running this application we see the following when running >> under strace: mmap(offset=33230848, len=2068480) failed with >> errno=12 for the file <so file name> >> >> The system has enough RAM, total 16GB and about 12 GB free. > >The system may have enough memory, but your 32 bit application >is limited to slightly less than 4GB of virtual memory. > >Errno 12 corresponds to -ENOMEM. The process running out of its >slightly-less-than-4GB of memory corresponds nicely with your >system still having 12GB of free memory. > >This suggests you have run out of virtual memory space in the >process. > >If your program needs more than 4GB of memory, eg. because you have >a large data set, you need to use a 64 bit version of the program. > >This is not a kernel problem.

Confused.
The words "When we are running the same application on other system, it comes up. "
How can the program run on other systems?

Regards,
shhuiw

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