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Re: "resource temporarily unavailable" errors on windows 7
From: |
Eli Zaretskii |
Subject: |
Re: "resource temporarily unavailable" errors on windows 7 |
Date: |
Tue, 13 Mar 2012 05:54:22 +0200 |
> Date: Tue, 13 Mar 2012 08:18:10 +0800
> From: Alex Harsanyi <address@hidden>
> Cc: address@hidden
>
> My understanding is that in a 32bit windows process, only 2Gb of
> address space is usable by the application.
That's true.
> Could this mean that after alocate_heap() is called, the entire
> address space of the emacs process is allocated and CreateProcess()
> cannot allocate memory for its internal needs?
The function we are talking about does not _allocate_ memory, it just
_reserves_ it. Memory is only allocated (i.e. committed) when Emacs
actually needs it (and decommitted when it's no longer needed).
> Since only 1.4 Gb are allocated in Windows XP compatibility mode, this
> would leave 0.4 Gb free to be used by CreateProcess(), so subprocesses
> can be started without problems.
How much memory is "left" after allocate_heap does its job depends on
how much _virtual_ memory do you have. IOW, the 2GB number is
_per_application_, not for _all_ applications. See my other mail for
more practical questions.
- "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/12
- Re: "resource temporarily unavailable" errors on windows 7, Eli Zaretskii, 2012/03/12
- Re: "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/12
- Re: "resource temporarily unavailable" errors on windows 7,
Eli Zaretskii <=
- Message not available
- Re: "resource temporarily unavailable" errors on windows 7, Eli Zaretskii, 2012/03/12
- Re: "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/13
- Re: "resource temporarily unavailable" errors on windows 7, Eli Zaretskii, 2012/03/13
- Re: "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/14
- Re: "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/14
- Re: "resource temporarily unavailable" errors on windows 7, Eli Zaretskii, 2012/03/14
- Re: "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/14
- Re: "resource temporarily unavailable" errors on windows 7, Eli Zaretskii, 2012/03/15
- Re: "resource temporarily unavailable" errors on windows 7, Eli Zaretskii, 2012/03/15
- Re: "resource temporarily unavailable" errors on windows 7, Alex Harsanyi, 2012/03/15