The segfault occurs because Xephyr's attempt to bgfill its client-facing root window writes past the end of the window's image data buffer.
The write fails because Xephyr's hostx_screen_init() function is requesting an image data buffer which is too small. The image data buffer is too small because the calculation of bytes_per_line conflicts with the calculation of the screen's bits-per- pixel. Finally, Ajax supplied a patch six months ago that, when rebased, fixes the problem: http://patchwork.freedesktop.org/patch/1327/ -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. https://bugs.launchpad.net/bugs/635523 Title: Xephyr crashed with SIGSEGV _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
