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Date: Thu, 25 Mar 2010 10:17:00 +0100
Message-ID: <fe05d1541003250217ha46839dtced8f312c4a65828@mail.gmail.com>
To: Thomas Hruska <thruska@cubiclesoft.com>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] How to trace a crash bug?
From: pierre.php@gmail.com (Pierre Joye)

hi,

On Thu, Mar 25, 2010 at 8:49 AM, Thomas Hruska <thruska@cubiclesoft.com> wr=
ote:

> If you read the message, you would see "PHP 5.2.13". =A0I didn't mention
> thread safe. =A0Sorry. =A0Forgot about that.

NTS does not work with Apache 2.2. The SAPI is not even available in
the nts version.

>> does it crash with a hello world script, or only with your complex scrip=
t.
>> if its crash only with your script, then we cant help without a testcase=
.
>
> That is what I am trying to do: =A0Come up with either a simple test case=
 OR
> pinpoint the crash in the C code. =A0The simple test case route wasn't
> working, so I'm left with tracing the code. =A0Hence my query.

Does it crash randomly, at start, or using a given request/script?


> I'm pretty sure I'm on the right list.  I know C/C++ and want to hook int=
o
> the PHP source with a C debugger (VS IDE, preferably).  In other words, I=
'm
> going to be digging around in the engine to find this problem.  Plus, thi=
s
> will give me a good look at the guts of PHP.

php windows internals may be better for this specific topic.

>> ps: if you found a bug, open a ticket in the bugtracker.

> Will do after I've got a reasonable test case and/or patch to work with.
> =A0Simply saying "PHP crashes with complex code" isn't helpful to anyone.=
 =A0I
> was basically after a general guide for getting a Debug build that I can
> hook into with the VS debugger and stop on crash bugs from within the Apa=
che
> module.
>
> Oh well. =A0I'll try to build and will get back to you. =A0I can't do any=
thing
> else on this project until I figure out this bug. =A0I probably should gr=
ab
> the latest snapshot just in case...
>
> Darn. =A0Windows snapshot binaries are broken. =A0Guess I'm building it a=
nyway.

No need to at this stage. I'm almost sure it is a configuration
problem, missing/wrong DLL or other similar problems.

Cheers,
--=20
Pierre

@pierrejoye | http://blog.thepimp.net | http://www.libgd.org