Re: bad posix_fadvise support causes initdb to exit ungracefully

hello ...

2.4? we know that some versions of 2.4 cause problems due to broken posix_fadvise. if i remember correctly we built some configure magic into PostgreSQL to check for this bug. what does this check do?

	many thanks,

		hans



On Jun 15, 2011, at 6:12 PM, Merlin Moncure wrote:

> Due to unfortunate environmental conditions (don't ask) I've been
> trying to get postgres 9.0 up and running on a fairly ancient linux --
> redhat EL 3 which as kernel 2.4.21.   initdb borks on the create
> database step with the error message "child process exited with error
> code 139".  A bit of tracing revealed the exit was happening at the
> pg_flush_data which basically wraps posix_fadvise.   Disabling fadvise
> support in pg_config_manual.h fixed the problem.
> 
> Things brings up a couple of questions:
> *) Are linuxes this old out of support?
> *) Should configure be testing for working posix_fadvise?
> 
> merlin
> 
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