Messages in this thread | | | Date | Fri, 07 Apr 2017 22:58:12 +0200 | From | Paul Menzel <> | Subject | Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo X60 with coreboot |
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Dear Jarkko,
On 2017-04-07 22:13, Jarkko Sakkinen wrote: > On Thu, Apr 06, 2017 at 01:10:13PM -0600, Jason Gunthorpe wrote: >> On Thu, Apr 06, 2017 at 08:26:22PM +0200, Paul Menzel wrote: >> > >We added direct ACPI binding to the driver in addition to PNP, so if >> > >you have an ACPI table it goes down that path and does some additional >> > >validation of what is in the TPM. The BIOS must provide a >> > >acpi_dev_resource_memory and a ACPI_SIG_TPM2 for the ACPI entry at a >> > >minimum. >> > >> > Is it correct, that this is added in/for 4.11, so just recently? Testing >> > with Linux 4.10.8, everything is detected just fine. >> >> No, it is quite a bit older.. And it should only go for TPM2, which I >> don't think you have?? >> >> Maybe Jarkko has a guess, but sure sounds like something is recently >> broken in 4.11 >> >> Jason > > I'll come back to this. I have to re-read the whole mail thread to > get back into the context. Lots of multitasking because of release > and so forth. Sorry for the latency!
I started bisecting this issue. This is the current state.
``` # git bisect log # bad: [7a771ceac771d009f7203c40b256b0608d7ea2f8] Merge tag 'dm-4.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm # good: [c470abd4fde40ea6a0846a2beab642a578c0b8cd] Linux 4.10 git bisect start 'HEAD' 'v4.10' # good: [b3de5ad688f0f52457e73767f95a640ab4158d0d] Merge tag 'regmap-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap git bisect good b3de5ad688f0f52457e73767f95a640ab4158d0d ```
Kind regards,
Paul
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