On Mon, Apr 23, 2012 at 6:03 AM, Sedat Dilek <sedat.dilek@xxxxxxxxxxxxxx> wrote: > On Mon, Apr 23, 2012 at 11:48 AM, Sedat Dilek > <sedat.dilek@xxxxxxxxxxxxxx> wrote: >> [ Please CC me I am not subscribed to this ML ] >> >> Hi, >> >> with a self-compiled linux-3.4-rc4 I am seeing this bugs/failures/warnings: >> >> [ 0.241572] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored >> >> [ 0.279385] pci0000:00: ACPI _OSC request failed (AE_ERROR), >> returned control mask: 0x1d >> >> [ 0.293699] system 00:0a: Plug and Play ACPI device, IDs PNP0c02 (active) >> [ 0.294032] ACPI Error: Invalid/unsupported resource descriptor: >> Type 0x00 (20120320/utresrc-650) >> [ 0.294037] pnp 00:0b: can't evaluate _CRS: 12311 >> >> The same outputs I have seen also with an unsupported drm-intel-next >> kernel from Ubuntu/PPA archives [1]. >> >> What does ist mean? Is it harmless? Buggy firmware/bios? >> >> Do you need more background infos (dmesg, kernel-config, etc.)? >> >> Regards, >> - Sedat - >> >> [1] http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/current/ > > I have upgraded this Samsung series-5 notebook from BIOS version 05XK > to 06XK, but the pnp/_CRS warning still remains. Resource type 0 is "reserved" per the ACPI spec, so this is likely a BIOS defect. However, we might be able to handle it better than we currently do. I would expect all versions of Linux would report this error -- can you confirm that or identify a version that didn't complain? Also, can you collect an acpidump (see http://www.lesswatts.org/projects/acpi/utilities.php)? In acpi_ut_validate_resource(), we return AE_AML_INVALID_RESOURCE_TYPE (0x3017 == 12311), which explains the messages you see. The comments in acpi_ut_walk_aml_resources() suggest that we can't continue because the length may be bogus if the type is invalid. But I suspect that if we just treat it as a zero-length descriptor and ignore it, things will probably work, and that's likely what Windows does. Bjorn -- 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
