DualCores and Current Cygwin problems
Chee Kiang Goh
Fri May 11 01:27:00 GMT 2007
Good day, all,
Still no luck trying out Larry's Suggestion... my
system is a bit edgy and unstable at the moment... is
gonna be a long re-installation ... :< fortunately I
am trying this @ home and only have to live with my
After reading more of the current and past postings, I
gather that there are lots of reports with similar
symptoms... some regarding the vista installation,
some like mine and Joseph, on the dual cores, and
lots of others with build-failures. The interesting
part is that the underlying system/OS are typically
I am not sure if these are somehow connected.
Appreciate if you can share your opinions.
Will update as soon as my PC bounced back to normal to
continue my trials...:P
Thanks again all round!
>From my wife's notebook...
--- Joseph Kowalski <firstname.lastname@example.org> wrote:
> I think the following sad story should shed a little
> light on this issue.
> I'm attempting to use cygwin to provide the
> UNIX-like build environment
> to build Java SE on a DualCore system.
> Relevant configuration details:
> AMD X2 5200+
> Asus M2NPV-VM
> 2 Gb ECC memory (std. clocks)
> I'm working to improve the documentation for the
> Java SE build, so I
> know *exactly* what's on the system. The
> installations are:
> 1) Windows XP, fully updated
> 2) Visual Studio .NET Professional (2003)
> 3) Microsoft Platform SDK (2004 - *not* R2)
> 4) Microsoft DirectX SDK (Summer 2004)
> 5) Sun Java 6 SDK (1.6.0_01)
> 6) Cygwin (current)
> That's it. No additional software components.
> With this configuration, I get random "can not fork:
> temporarily unavailable" errors when trying to
> perform the fairly large
> and complex product build. I also get
> "dup_proc_pipe" failures, which
> are fairly random, but tend to be understandably
> associated with long
> pipes in the build process.
> If I add /ONECPU to boot.ini, neatly turning my
> DualCore system into a
> single core system, the failures all magically
> This would tend to indicate that there is a
> multi-threading issue either
> in cygwin or in the underlying Windows XP operating
> It hopefully also provides a work-around (abet a
> somewhat painful one).
> It's probably worth trying by all who have been
> reporting this failure.
> If it doesn't eliminate the failure for you, its an
> indication that
> there may be multiple failures involved.
> - cheers and good luck (these are hard problems to
> track down),
> - Joseph Kowalski
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