"Fredrik Lundh" <[EMAIL PROTECTED]> writes:
> Mike Meyer wrote:
>
>> > So why would Apple insist on setting unusably low process limits, when
>> > the others don't?
>>
>> You're making an unwarranted assumption here - that the OP wasn't
>> creating a large process of some kind.
>
> You need a special license to create large processes on a Mac?
No more so than on any other OS. What does that have to do with my
pointing out that the OP may have been creating a process that
exceeded the size normally allowed for non-administrator processes?
Any modern OS should have different groups of users with different
sets of possible maximum resource allocation - which only an
administrator should be allowed to change.
> I clicked on the google link that Bill posted, and noted that it wasn't
> exactly something that only affected a single Python user. If some-
> thing causes problems for many different applications that run fine
> on other Unix systems, it's pretty obvious that the default OS X con-
> figuration isn't quite as Unixy as one would expect.
I didn't follow that link - I formulated my own google queery. While I
saw lots of things about vm_malloc, trying vm_malloc python turns up
nothing. Which seems to indicate that this is a relatively rare thing
for python users.
>> FWIW, OS X has a Mach kernel. The failing vm_malloc call listed in the
>> OP is a Mach call, not a Unix call.
> So has tru64. I've done some serious Python stuff on that platform
> (stuff that included some really large processes ;-), and I never had
> any allocation problems. But of course, that system was designed
> by DEC people...
Oddly enough, google just turned up a vm_malloc for VMS as well. I
wonder if that's where tru64 got it from - and if so how it got into
Mach?
There is something very non-unixy going on here, though. Why is
vm_malloc exiting with an error message, instead of returning a
failure to the calling application? I've seen other applications
include a FOSS malloc implementation to work around bugs in the
system's malloc. Maybe Python should do that on the Mac?
<mike
--
Mike Meyer <[EMAIL PROTECTED]> http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.
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