On Fri, May 12, 2017 at 9:29 PM, Dmitry Osipenko <digetx@xxxxxxxxx> wrote: > If command buffer claims a number of words that is higher than its BO can > fit and a relocation lays past the BO, a kernel OOPS will be fired on that > relocation address patching. This was triggered by an opentegra Xorg driver > that erroneously pushed too many commands to the pushbuf. > > [ 46.829393] Unable to handle kernel paging request at virtual address f09b2000 > ... > [<c04a3ba4>] (host1x_job_pin) from [<c04dfcd0>] (tegra_drm_submit+0x474/0x510) > [<c04dfcd0>] (tegra_drm_submit) from [<c04deea0>] (tegra_submit+0x50/0x6c) > [<c04deea0>] (tegra_submit) from [<c04c07c0>] (drm_ioctl+0x1e4/0x3ec) > [<c04c07c0>] (drm_ioctl) from [<c02541a0>] (do_vfs_ioctl+0x9c/0x8e4) > [<c02541a0>] (do_vfs_ioctl) from [<c0254a1c>] (SyS_ioctl+0x34/0x5c) > [<c0254a1c>] (SyS_ioctl) from [<c0107640>] (ret_fast_syscall+0x0/0x3c) > > Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> Looks good, good catch! Reviewed-by: Erik Faye-Lund <kusmabite@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
