Mailing List Archive: httpd on Windows crashes when ErrorLog path in httpd.conf is invalid

Hello,

It appears that httpd 2.4.56 crashes on Windows when httpd.conf has an
invalid path in the ErrorLog directive:
[[[
ErrorLog "z:/abc.log"
]]]
My testing computer does not have volume 'z', so the path is invalid.

Crash dump is attached.

The problem reproduces with httpd 2.4.56 and 2.4.57 on Windows 10 22H2
(OS Build 19045.2846). I used httpd 2.4.56 bundled with the latest
'XAMPP[1] for Windows' release for reproducing this crash.
[.[.[.
Faulting application name: httpd.exe, version: 2.4.56.0, time stamp: 0x64072c6c
Faulting module name: VCRUNTIME140.dll, version: 14.32.31326.0, time
stamp: 0x49b85383
Exception code: 0xc0000005
Fault offset: 0x0000000000001fad
Faulting process id: 0x1368
Faulting application start time: 0x01d97d06056ef31f
Faulting application path: c:\xampp\apache\bin\httpd.exe
Faulting module path: C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll
Report Id: b7d45bfb-9d55-4145-993c-68fa24b62c67
Faulting package full name:
Faulting package-relative application ID:
]]]
[.[.[.
Fault bucket 1650965393206579658, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: httpd.exe
P2: 2.4.56.0
P3: 64072c6c
P4: VCRUNTIME140.dll
P5: 14.32.31326.0
P6: 49b85383
P7: c0000005
P8: 0000000000001fad
P9:
P10:
]]]

[1]: https://www.apachefriends.org/

--
With best regards,
Pavel Lyalyakin
VisualSVN Team

Hi Pavel,
the 0xc0000005 error is an access violation on Windows. That error
also appears when a hard drive dies.
That isn't new in 2.4.56. I tested that with earlier versions.

Your dump helped to trace. This is related to the VCRUNTIME not
exclusive to httpd.

Sadly httpd -S does not notice that configuration mistake.

Cheers
Mario

On Tue, 2 May 2023 at 17:08, Pavel Lyalyakin via dev
<dev@httpd.apache.org> wrote:
>
> Hello,
>
> It appears that httpd 2.4.56 crashes on Windows when httpd.conf has an
> invalid path in the ErrorLog directive:
> [[[
> ErrorLog "z:/abc.log"
> ]]]
> My testing computer does not have volume 'z', so the path is invalid.
>
> Crash dump is attached.
>
> The problem reproduces with httpd 2.4.56 and 2.4.57 on Windows 10 22H2
> (OS Build 19045.2846). I used httpd 2.4.56 bundled with the latest
> 'XAMPP[1] for Windows' release for reproducing this crash.
> [.[.[.
> Faulting application name: httpd.exe, version: 2.4.56.0, time stamp: 0x64072c6c
> Faulting module name: VCRUNTIME140.dll, version: 14.32.31326.0, time
> stamp: 0x49b85383
> Exception code: 0xc0000005
> Fault offset: 0x0000000000001fad
> Faulting process id: 0x1368
> Faulting application start time: 0x01d97d06056ef31f
> Faulting application path: c:\xampp\apache\bin\httpd.exe
> Faulting module path: C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll
> Report Id: b7d45bfb-9d55-4145-993c-68fa24b62c67
> Faulting package full name:
> Faulting package-relative application ID:
> ]]]
> [.[.[.
> Fault bucket 1650965393206579658, type 4
> Event Name: APPCRASH
> Response: Not available
> Cab Id: 0
>
> Problem signature:
> P1: httpd.exe
> P2: 2.4.56.0
> P3: 64072c6c
> P4: VCRUNTIME140.dll
> P5: 14.32.31326.0
> P6: 49b85383
> P7: c0000005
> P8: 0000000000001fad
> P9:
> P10:
> ]]]
>
> [1]: https://www.apachefriends.org/
>
> --
> With best regards,
> Pavel Lyalyakin
> VisualSVN Team

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