Messages in this thread | | | Date | Tue, 24 Apr 2012 00:27:03 +0200 | Subject | Re: Warning: pnp 00:0b: can't evaluate _CRS: 12311 | From | Sedat Dilek <> |
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On Tue, Apr 24, 2012 at 12:04 AM, Bjorn Helgaas <bhelgaas@google.com> wrote: > On Mon, Apr 23, 2012 at 6:03 AM, Sedat Dilek <sedat.dilek@googlemail.com> wrote: >> On Mon, Apr 23, 2012 at 11:48 AM, Sedat Dilek >> <sedat.dilek@googlemail.com> 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
[ Removed Adam Belay <abelay@mit.edu> (email-address does not exist anymore) ]
Yeah, I asked today on #ubuntu-kernel and people there were very helpful and gave some good explanations (AE_AML_INVALID_RESOURCE_TYPE etc.).
The acpidump.log I pastebin-ed today, so here it is :-).
The kernel shipped with Ubuntu/precise does not show the pnp/_CSR issue, this is linux-image-3.2.0-23-generic (3.2.0-23.36).
Hope this helps.
- Sedat - [unhandled content-type:application/octet-stream] | |