Re: hashtable crash (was Re: [PATCHES] Post-mortem: final

Tom Lane wrote:

>Stefan Kaltenbrunner <stefan@kaltenbrunner.cc> writes:
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>>OpenBSD has some very useful features for configuration of malloc() -
>>and on this particular box it has:
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>>G       ``Guard''.  Enable guard pages and chunk randomization.  Each
>>             page size or larger allocation is followed by a guard page that
>>             will cause a segmentation fault upon any access.  Smaller than
>>             page size chunks are returned in a random order.
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>>and indeed - enabling "G" on another (x86) OpenBSD box of mine causes
>>make check to die there too ....
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>Cool.  Once I get this bug fixed, the people running openbsd build farm
>machines probably should turn that on as standard practice ... we've
>found bugs of this ilk several times before, and I would not be
>surprised if there are more.
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Stefan currently has the only openbsd members. However. I will probably 
add something to the buildfarm config file to turn on some of those 
options on openbsd. Can you please look at 

http://www.openbsd.org/cgi-bin/man.cgi?query=malloc.conf&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html

and tell us which ones you would like turned on? Stefan suggests A F and 
G might be useful.

cheers

andrew