[Tile-serving] [openstreetmap/mod_tile] "Failed to read cmd on fd" errors since mod_tile update on 2nd June (#77)

[cglacet]

I'm using OSX(10.12.4). The apache _authorization_ stuff that I get is because my **httpd.conf** is loading [mod_authz_core](https://httpd.apache.org/docs/2.4/fr/mod/mod_authz_core.html). The following line is displayed because I have _LogLevel_ set to _trace8_ instead of _debug_.
```
Loaded Modules:
 core_module (static)
 so_module (static)
 http_module (static)
 mpm_prefork_module (static)
 authn_file_module (shared)
 authn_core_module (shared)
 authz_host_module (shared)
 authz_groupfile_module (shared)
 authz_user_module (shared)
 authz_core_module (shared)
 access_compat_module (shared)
 auth_basic_module (shared)
 reqtimeout_module (shared)
 ext_filter_module (shared)
 filter_module (shared)
 mime_module (shared)
 log_config_module (shared)
 env_module (shared)
 headers_module (shared)
 setenvif_module (shared)
 version_module (shared)
 slotmem_shm_module (shared)
 unixd_module (shared)
 status_module (shared)
 autoindex_module (shared)
 vhost_alias_module (shared)
 negotiation_module (shared)
 dir_module (shared)
 alias_module (shared)
 hfs_apple_module (shared)
 tile_module (shared)
```

Ah, I forgot to say that I've tried to use [kosmtik](https://github.com/kosmtik/kosmtik), just to check if mapnik works, and everything works just fine. 

Concerning Switcheroo Redirector, I don't think this would help since it just seems to be an URL rewriting plugin, for now I only try a simple "http://localhost/osm_tiles/8/251/160.png" which always get an empty response (ERR_EMPTY_RESPONSE). 

I'm guessing that the problem comes from mod_tile (rights as you suggested), but I'm not entirely sure. I'll dig into this and come back as soon as I have something new, hopefully an error message somewhere or with gdb.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/mod_tile/issues/77#issuecomment-307648457
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tile-serving/attachments/20170611/fbb0b0bd/attachment.html>