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From: Casey Boettcher <cboettcher AT gmail DOT com>
Date: Sun, 10 Oct 2010 12:50:12 -0700
Message-ID: <AANLkTinF61nQW=MW1UZ6gs-8F4_QUzC7NwzU2pQsg_Jj@mail.gmail.com>
Subject: Re: 1.7.7-1: troubleshooting "couldn't allocate heap, Win32 error 487"
To: cygwin AT cygwin DOT com
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> ---------- Forwarded message ----------
> From: Marco Atzeri <marco>
> To: cygwin <cygwin>, Ken Brown <kbrown>
> Date: Sun, 10 Oct 2010 12:28:24 +0100 (BST)
> Subject: Re: 1.7.7-1: troubleshooting "couldn't allocate heap, Win32 error 487"
> --- Dom 10/10/10, Ken Brown ha scritto:
>
>> On 10/10/2010 3:49 AM, Casey
>> Boettcher wrote:
>> > Hello,
>> >
>> > I'm attempting to troubleshoot a problem that occurs
>> when I boot
>> > Windows 7 normally, but does not occur when I boot
>> into Safe Mode.
>> >
>> > The problem is this: when I run cygwin.bat, I receive
>> the following
>> > within the console (excerpted here, but full output is
>> attached in
>> > bash.out):
>> >
>> > -----
>> >        2 [main] bash 1264
>> C:\cygwin\bin\bash.exe: *** fatal error -
>> > couldn't allocate heap, Win32 error 487, base
>> 0xA40000, top 0xA90000,
>> > reserve_size 323584, allocsize 327680, page_const
>> 4096
>> [...]
>> > I've attached output from "cygcheck -r -s -v" as
>> instructed on
>> > http://www.cygwin.com/problems.html
>>
>>  From your cygcheck output:
>>
>>    Warning: There are multiple cygwin1.dlls
>> on your path
>>
>> Ken
>
> .\cygwin1.dll
> and
> C:\cygwin\bin\cygwin1.dll
>
> are likely the same file, so it could be a bogus warning
>
>
> Any chance of "Logitech Quick Camera driver" installed ?
>
> Marco

Ken and Marco,

Thanks for your responses. I'm pretty sure the duplicate DLL warning
is superfluous, as both paths point to the same file.

As far as a Logitech camera driver is concerned: I have a camera
driver, and I have Logitech devices, but I have no Logitech camera.

I avoided troubleshooting loaded drivers (even though that tack would seem
 to be obvious given my success in Safe Mode) because I've no idea how
to go about doing it. I've unplugged all of my peripherals and
rebooted, but that had no effect.

Any advice on the best way to isolate a problematic driver on a
Windows 7 system? Is there a way to "dynamically" load and unload
drivers from the
system without rebooting?

Regards,
Casey

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