Assertion 'dsi->dsi_gi.zero1 == 0' failed at nav_read.c:205
After libdvdread has got keys from *.VOB and found 1 VTS, the error happened with the display:
ogle_nav: nav_read.c:205: navRead_DSI: Assertion 'dsi->dsi_gi.zero1 == 0' failed.
Then it displayed four unknown sigchld messages and terminated four pid's. The last display was 3 statements of removing shmid's and exited.