Re: 1.7.6 snapshot: intermittent "CreateProcessW failed"

[Andy Koppe <andy dot koppe at gmail dot com>]

On 28 June 2010 19:34, Christopher Faylor wrote:
> On Mon, Jun 28, 2010 at 05:36:04PM +0100, Andy Koppe wrote:
>>When running a couple of lengthy make-based builds in parallel, I
>>eventually get error messages such as this:
>>
>> Â Â Â3 [main] sh 4368 fork: child -1 - CreateProcessW failed, errno 2
>>/bin/sh: fork: No such file or directory
>>
>> Â Â Â5 [main] make 5736 fork: child -1 - CreateProcessW failed, errno 2
>>make[2]: vfork: No such file or directory
>>
>>The errors aren't reproducible, i.e. when rerunning, one of the build
>>fails elsewhere with the same sort of error. Hence I'm unable to
>>provide a small testcase.
>>
>>It doesn't fail if I run just one build at a time, and it fails more
>>quickly if I run more than two. I guess this suggests a
>>synchronisation issue.
>>
>>This is on a 32-bit Windows XP. The issue didn't occur on 1.7.5 and
>>before. I went back through previous snapshots to try to narrow to
>>down the problem a little bit: 20100507 is fine, 20100518 is not.
>
> Hmm. ÂThat means that it is related to the change to use wide characters
> for the current program name but I've reviewed the patch again and don't
> see anything obvious.
>
> Could you try this on the latest snapshot when it shows up. ÂI've added a
> tad more debugging to the error message.

      4 [main] sh 396 fork: child -1 - CreatProcessW failed for
'\??\C:\bin\sh.exe', errno 2
/bin/sh: fork: No such file or directory

> Also, if you could duplicate this under strace that would be very helpful.
> Please send the strace to me at me at <myinitials> dot cx.

I'll give that a go.

Cheers,
Andy

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