Em seg 09 jun 2014, às 18:28:20, Thiago Macieira escreveu: > Em seg 09 jun 2014, às 12:06:10, Jacob Kroon escreveu: > > Hi, > > > > I'm testing Qt 5.2.1 on a Wandboard using Yocto. If I build Qt5 without > > udev support, > > > > I get 3 or 4 of these kernel warnings when I start my application: > > idr_remove called for id=xxx which is not allocated. > > CPU: 0 PID: 538 Comm: xxx Not tainted xxx > > [<80013c7c>] (unwind_backtrace+0x0/0xec) from [<80011634>] > > > > (show_stack+0x10/0x14) > > > > [<80011634>] (show_stack+0x10/0x14) from [<80279198>] > > > > (idr_remove.part.9+0x290/0x29c) > > > > [<80279198>] (idr_remove.part.9+0x290/0x29c) from [<802fdaec>] > > > > (drm_ctxbitmap_free+0x24/0x30) > > > > [<802fdaec>] (drm_ctxbitmap_free+0x24/0x30) from [<802fe01c>] > > > > (drm_rmctx+0x64/0x110) > > > > [<802fe01c>] (drm_rmctx+0x64/0x110) from [<802fe714>] > > > > (drm_ioctl+0x3d4/0x50c) > > > > [<802fe714>] (drm_ioctl+0x3d4/0x50c) from [<800d8f70>] > > > > (do_vfs_ioctl+0x3f4/0x5b4) > > > > [<800d8f70>] (do_vfs_ioctl+0x3f4/0x5b4) from [<800d9168>] > > > > (SyS_ioctl+0x38/0x60) > > > > [<800d9168>] (SyS_ioctl+0x38/0x60) from [<8000e180>] > > > > (ret_fast_syscall+0x0/0x30) > > > > Could anyone shed some light on the matter ? > > Looks like a kernel bug. Maybe you should talk to the libdrm guys. It would > be a good idea to run the application with strace so you can get the actual > ioctls done.
On second thought, this message might be a warning from the kernel devs like we do with qWarning: they're telling us that there's a bug in our code. Anyway, I can't decipher the message. Maybe someone who knows the drm plugin might be able to help. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
