On 4 November 2013 16:02, Steve Hay <steve.m....@googlemail.com> wrote:
> On 4 November 2013 15:38, Jeff Trawick <traw...@gmail.com> wrote:
>> On Mon, Nov 4, 2013 at 8:43 AM, Jeff Trawick <traw...@gmail.com> wrote:
>>>
>>> On Mon, Nov 4, 2013 at 4:22 AM, Steve Hay <steve.m....@googlemail.com>
>>> wrote:
>>>>
>>>> On 30 October 2013 18:24, Steve Hay <steve.m....@googlemail.com> wrote:
>>>> > I've now tried other perls (5.16.0, 5.18.0 and 5.19.4) in other build
>>>> > configurations (with/without PERL_IMPLICIT_SYS) and can confirm that
>>>> > the crash only occurs with perls built with PERL_IMPLICIT_SYS enabled.
>>>> > I generally use perl with that disabled (although that isn't the
>>>> > default configuration), so that's probably what I was doing when I had
>>>> > this working back in July.
>>>> >
>>>> > That is indeed a Windows-specific thing, unfortunately :-/
>>>> >
>>>> > I will see what I can do to fix it since most users will indeed have
>>>> > the default configuration (certainly ActivePerl and Strawberry Perl
>>>> > both do) and hence experience the crash.
>>>>
>>>> As per your suggestion on the other thread, I've now merged the
>>>> httpd24 and threading branches togther into a new branch called
>>>> httpd24threading and I'm delighted to see that it does indeed fix the
>>>> add_config.t crash when PERL_IMPLICIT_SYS is defined :-)
>>>>
>>>> There is one oddity when starting up the server: it complains that
>>>> "KeepAliveTimeout 300" has the wrong format! I don't understand this.
>>>> The directive is not new and that syntax (number of seconds) has long
>>>> been valid. httpd-2.3.2 added a new millisecond format (append "ms"),
>>>> but that shouldn't affect this:
>>>> http://httpd.apache.org/docs/2.4/mod/core.html#keepalivetimeout
>>>
>>>
>>> The most likely cause would seem to be some stray character after the 300
>>> (e.g., maybe a ^M on Unix)???  The next most likely (also unlikely) cause
>>> would seem to be that per-thread errno is hosed in your httpd build for some
>>> reason???  (yeah, I know how bogus this sounds :) )
>>>
>>> 2.2 parses the number via the very forgiving atoi().
>>> 2.4 parses the number with apr_strtoi64() which manipulates errno and also
>>> by checking what comes after the number, which also manipulates errno and is
>>> sensitive to the first character that apr_strtoi64() can't parse
>>>
>>> Maybe the quickest way to get to the bottom of it is to add some tracing
>>> to the three "return some-error" paths in
>>> server/util.c::ap_timeout_parameter_parse().
>>
>>
>> I should be able to try that out...
>>
>> What do I need to grab from svn and run, and does this particular error
>> reproduce on Linux?
>>>
>
> I haven't heard from others yet whether this reproduces on Linux.
>
> The only thing you need from svn is modperl's 'httpd24threading'
> branch and httpd-2.4 (I'm using 2.4.4) -- it works fine with 2.2. I
> doubt that the perl version is relevant, but I'm using 5.19.4. I've
> built everything in debug mode. I will have a look later; thanks for
> the tip where to look. There are definitely no stray characters after
> the 300 -- only a \n.

Just tried again with httpd-2.4.6 and perl-5.19.5 and it works fine,
albeit in release builds. I will find out whether it's the upgraded
httpd, upgraded perl, or switch from debug to release mode that
"fixed" it...

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