[erlang-questions] Problems cross compiling: eheap_alloc: Cannot reallocate 3480006320 bytes of memory
Tue Feb 9 11:39:19 CET 2010
Winston Smith wrote:
> On Mon, Feb 8, 2010 at 9:55 AM, Rickard Green <> wrote:
>> The fix is now available in the ccase/r13b04_dev branch at github. If the
>> fix doesn't solve your problem, please send me the $ERL_TOP/erts/config.log
>> file and the complete printout (stdout) from your configure run.
> It works well now, thank you.
> I did see an error about missing
> headers (sorry, I don't have the exact message), but that could've
> been because I have done previous builds with the old mechanism. It
> did seem to go away after I ran:
> ./otp_build autoconf --xcomp-conf=<my_xcomp_file>
> I don't know if this fixed it or not; it's no longer mentioned in the
I'm a bit surprised by the missing header message, but since it went
away after running `./otp_build autoconf' it was probably due to a
misconfiguration. If it should appear again please send us info about that.
`./otp_build autoconf' (no need for --xcomp-conf here) regenerates all
configure scripts and is needed in git when a configure.in or aclocal.m4
have changed. `./otp_build autoconf' is not mentioned since it is not
needed in the source tar released. However, we probably should mention
it since there are a lot of people building in git.
> Is there an easy way to reset my git working directory
> to remove any previous autoconf/configure junk (aside from doing a
> clean clone of the repo)?
`git clean -dfx' should clean up the whole source tree. Note that I
haven't used it myself (I'm still mostly working in clearcase), so
please read the man page before using it.
>> Some changes has been made in xcomp/README, so it might be worth having a
>> look at the diff.
> I updated my .conf file based on the updated examples you have there,
> it looks much more straightforward now.
> I did notice a couple of things in the xcomp/README. Firstly, you now
> describe the two ways of building, using configure or using otp_build
> -- it wasn't immediately obvious what the differences and why I'd use
> one vs the other until I'd read in more detail. Secondly, you have a
> typo on line 225; you say the command line for otp_build configure has
> --with-xcomp-conf= when it's really just --xcomp-conf=. Also, the
> script doesn't seem to expand a ~ in the filename, not a big deal
Thanks, I'll fix the typo, the tilde expansion, and clarify the
difference between otp_build and configure/make a bit.
>> The bug was that configure checked for large file support
>> using `getconf' for the build machine. This can cause 8 byte off_t for the
>> target machine when 4 byte off_t should be used. The fix tries to figure out
>> how to enable large file support using a `getconf' for the target machine
>> (or by user input). That is, if you get an 8 byte off_t it isn't necessarily
>> wrong. It then probably succeeded in figuring out how to enable large file
> This is fixed (at least for avr32-linux), it correctly detected the
> size of off_t as 4.
> Many thanks!
Rickard Green, Erlang/OTP, Ericsson AB.
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