On Wed, Oct 09, 2013 at 07:15:10PM +0200, Matthieu Herrb wrote: > On Wed, Oct 09, 2013 at 07:01:46PM +0200, Sébastien Marie wrote: > > On Wed, Oct 09, 2013 at 06:25:32PM +0200, Giovanni Bechis wrote: > > > On 10/09/13 18:16, Stuart Henderson wrote: > > > > I'm using xdm, wm is cwm, new mesa, packages built against new mesa, > > > > inteldrm > > > > > > > My qt4 version is qt4-4.8.2p7, maybe the problem is related to the qt4 > > > packages update. > > > Cheers > > > Giovanni > > > > > > > This qt4 version is what I have before update... and it works well. But > > the latest in snapshots is qt4-4.8.5, and the problem occurs starting > > with this version (4.8.5). > > > > So this means that the previous version used less strict permissions > on shared memory segments. You can check them with ipcs(8).
in a term: $ qtconfig4 [... errors ...] in another: $ ipcs Message Queues: T ID KEY MODE OWNER GROUP Shared Memory: T ID KEY MODE OWNER GROUP m 262151 0 --rwa------ semarie semarie Semaphores: T ID KEY MODE OWNER GROUP > > It means a new patch for qt4... >From changes-4.8.5 (in qt-everywhere-opensource-src-4.8.5): General Improvements -------------------- - Change all shmget calls to user-only memory (security) So yes, the problem is due to qt4, which use more strict permissions for shmget. Thanks. -- Sébastien Marie
