Thank you.
I have just run it on drlvm of unbuntu, it works.
What a qurious problem!
On 10/16/06, Alexey Varlamov <alexey.v.varlamov@gmail.com> wrote:
>
> Both DRLVM and J9 works for me (SUSE9).
>
> --
> Alexey
>
> 2006/10/16, Leo Li <liyilei1979@gmail.com>:
> > Hi, all:
> > The harmony Runtime.exec fails on Linux with ENOMEM.
> > Here is the testcase:
> >
> > public class Exec {
> > public static void main(String[] args) throws Exception {
> >
> > Runtime.getRuntime().exec("ls"); }
> > }
> >
> > I have tried it on RedHat Enterprise 4 and Unbuntu, both get ENOMEM
> in
> > native code.
> >
> > After digging into it, I found it fails in procimpl.c, line 135:
> >
> > grdpid = fork ();
> >
> > If the call to fork is changed to vfork, the testcase will pass but
> > still get exitcode = 1 which indicates that some error has happened. The
> > difference between fork and vfork is just whether page tables is copied
> to
> > child process or not. But I do not think it is the main cause. Besides,
> > vfork has become outdated since it main usage is supplied by fork with
> > copy-on-write function implemented in modern linux kernel. Furthermore,
> > vfork is also not so safe as fork. So I do not think it is the accepted
> way
> > to solve the problem.
> >
> > I will try whether it can be reproduced on drlvm of linux since I am
> not
> > sure whether it is relevent to VM or classlib. If any drlvm man can tell
> me
> > the result, it can avoid my trouble to build it on linux. :)
> >
> >
> >
> >
> >
> >
> >
> > --
> > Leo Li
> > China Software Development Lab, IBM
> >
> >
>
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>
--
Leo Li
China Software Development Lab, IBM
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