http://bugs.freedesktop.org/show_bug.cgi?id=18967
--- Comment #6 from peter garrone <[EMAIL PROTECTED]> 2008-12-10 21:00:31 PST --- Created an attachment (id=21036) --> (http://bugs.freedesktop.org/attachment.cgi?id=21036) Code from drm_bufs.c showing DRM_SHM branch. This is the code in drm/drm_bufs.c (kernel module) for the ioctl DRM_IOCTL_ADD_MAP, type DRM_SHM. This mapping must be invoked from user space before the opened dri device can be locked. It normally sets the master->lock.hw_lock variable. However, if the function drm_find_matching_map returns something, then the ioctl returns 0, and the master->lock.hw_lock is never set, resulting in the infinite loop when locking the dri channel is attempted later from user space. -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
