Opened 6 years ago

Last modified 6 years ago

#46549 new defect

crash in gst_plugin_scanner from port:gstreamer010

Reported by: RJVB (René Bertin) Owned by: macports-tickets@…
Priority: Normal Milestone:
Component: ports Version:
Keywords: haspatch Cc: cgilles (HumanDynamo), mkae (Marko Käning)
Port: gstreamer010

Description

I've started running into a crashing from gst_plugin_scanner when starting digikam, after rebuilding port:opencv with different variants.

The crash disappeared when I reactivated the original version and couldn't be attributed to a particular variant, so I thought maybe I had to rebuild gstreamer010 . After doing that, gst_plugin_scanner crashed even with the old opencv version.

The crash is in dup2, which is called to redirect stderr to stdout:

     /* Dup stderr down to stdout so things that plugins print are visible,
      * but don't care if it fails */

given that 2nd line I first tried to close(2) to close stderr, but that also crashes. Doing nothing (out-commenting the dup2 statement) seems to be the workaround, which is not incompatible with the intended behaviour as described in the comment.

The crash cannot be reproduced starting gst-plugin-scanner from a terminal, so it is related either to the way digikam starts the tool, or to the fact that it is started from an application in an app bundle.

NB: we're talking about the same opencv *release*, but different installed *versions* ;)

Attachments (1)

dont-dup2-stderr-to-avoid-crash.patch (372 bytes) - added by RJVB (René Bertin) 6 years ago.

Download all attachments as: .zip

Change History (2)

Changed 6 years ago by RJVB (René Bertin)

comment:1 Changed 6 years ago by mkae (Marko Käning)

Cc: mk@… added

Cc Me!

Note: See TracTickets for help on using tickets.