Re: External exception in httpd

[Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>]

Le 30/03/2021 à 11:30, Michael Rabatscher a écrit :
> Hey guys!
>
> I'm currently a Delphi developer creating a windows module for the 
> apache 2.4
> server. Every time I run the module with a debugger attached (and 
> httpd.exe -X acutally to avoid
> 2 instances) I get a system exception on shutdown:
>
> system exception (code 0xc0000008)
>
> which as far as I could research is due to a double CloseHandle call in 
> libapr
>
> following the callstack that results in this stack
> :77462c6c ntdll.ZwClose + 0xc
> :66f85f95 libapr-1.apr_shm_remove + 0x115
> :66f85e5e libapr-1._apr_shm_destroy@4 + 0xe
> :5cc614a9 ; D:\ImportTest\modules\mod_socache_shmcb.so
> :5cc014e5 mod_ssl.ssl_run_proxy_post_handshake + 0x7B95
> :5cbf4cad mod_ssl.ssl_run_pre_handshake + 0x34BD
> :66f7c98d libapr-1._apr_pool_destroy@4 + 0x5d
> :66f7c96c libapr-1._apr_pool_destroy@4 + 0x3c
> :00f611f6 httpd.OPENSSL_Applink + 0x1F6
> :00f61875 httpd.OPENSSL_Applink + 0x875
> :00f627f5 httpd.OPENSSL_Applink + 0x17F5
> :75bcfa29 KERNEL32.BaseThreadInitThunk + 0x19
> :77457c7e RtlGetAppContainerNamedObjectPath + 0x11E
> :77457c4e ntdll.RtlGetAppContainerNamedObjectPath + 0xee
>
> so basically I think the problem is rooted in mod_ssl and the 
> Mod_socache module.
>
> I found a few threads that point in the same direction so I wanted to 
> check if there
> is someone with more knowledge about the code who could help to fix or 
> circumvent
> the problem. Note that according to the msdn the exception is only 
> raised if there
> is a debugger attached ;) so it does not appear in production.
>
> king regards
>    Mike

Hi,

could be a duplicate of https://bz.apache.org/bugzilla/show_bug.cgi?id=59798

CJ

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