Hi, On Tue, 2008-01-15 at 14:10 +0100, Erwan Velu wrote: > Hey folks, > > I'm running a 2.6.24-rc7 on my Samsung R70 in 64bit mode. > While booting up, the ACPI shows me this error : > > ACPI Error (utglobal-0126): Unknown exception code: 0xFFFFFFFE [20070126] Hmm, return value is -ENOENT which means video bus failed to evaluated the _ADR method of the video device. Please open a bug at http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and assign it to me. Please attach the dmesg output and acpidump as well. > Pid: 1950, comm: modprobe Not tainted 2.6.24-laptop-0.rc7.1mdv #1 > > Call Trace: > [<ffffffff8038bd86>] acpi_ut_update_ref_count+0x50/0x9d > [<ffffffff8038c231>] acpi_format_exception+0x2c/0x35 > [<ffffffff8038afcb>] acpi_ut_exception+0x25/0x8c > [<ffffffff8037662c>] acpi_evaluate_integer+0xb6/0xc7 > [<ffffffff8821dd0a>] :video:acpi_video_bus_add+0xcc9/0xce2 > [<ffffffff802c45e8>] ifind+0x58/0xd0 > [<ffffffff8038f33c>] acpi_device_probe+0x43/0x91 > [<ffffffff803c31cc>] driver_probe_device+0x9c/0x1b0 > [<ffffffff803c3499>] __driver_attach+0xc9/0xd0 > [<ffffffff803c33d0>] __driver_attach+0x0/0xd0 > [<ffffffff803c23ad>] bus_for_each_dev+0x4d/0x80 > [<ffffffff803c281c>] bus_add_driver+0xac/0x220 > [<ffffffff8822303c>] :video:acpi_video_init+0x3c/0x5e > [<ffffffff802622ae>] sys_init_module+0x18e/0x19a0 > [<ffffffff802522b0>] autoremove_wake_function+0x0/0x30 > [<ffffffff8020c34e>] system_call+0x7e/0x83 > > ACPI Exception (video-1721): UNKNOWN_STATUS_CODE, Cant attach device [20070126] > input: Video Bus as /class/input/input7 > Please try this patch first. From: Zhang Rui <rui.zhang@xxxxxxxxx> acpi_video_bus_get_one_device() is returning -errno style status, but acpi_video_bus_get_devices() is expecting an ACPICA style status Fix this and check the return value of acpi_video_device_enumerate as well. Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> --- drivers/acpi/video.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) Index: linux-2.6/drivers/acpi/video.c =================================================================== --- linux-2.6.orig/drivers/acpi/video.c +++ linux-2.6/drivers/acpi/video.c @@ -1530,7 +1530,7 @@ static int acpi_video_device_enumerate(s status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); if (!ACPI_SUCCESS(status)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD")); - return status; + return -EIO; } dod = buffer.pointer; @@ -1699,13 +1699,18 @@ acpi_video_bus_get_devices(struct acpi_v int status = 0; struct acpi_device *dev; - acpi_video_device_enumerate(video); + status = acpi_video_device_enumerate(video); + if (status) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Failed to enumerate devices\n"));; + return status; + } list_for_each_entry(dev, &device->children, node) { status = acpi_video_bus_get_one_device(dev, video); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); + if (status) { + ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Cant attach device")); continue; } } - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
