I've run 10 cold boots on the gateway mentioned in my previous comment,
and in each case after issuing a tpm2_startup clear command, I've been
able to query the NVLIST of the TPM. So the back-ported patch appears to
be working as advertised.
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@Tyler I've tested your kernel on a Dell Edge Gateway 3000 which was
showing the same TPM selftest log messages as originally described in
this bug. When cold-booted with your kernel I only see the following
messages now:
14:57:44 [0.00] ACPI: TPM2 0x76D537C8 34 (v03 Tpm2Tabl
Hello - I've prepared a backport of commit
2be8ffed093b91536d52b5cd2c99b52f605c9ba6 and a kernel test build. If
someone affected by this bug could verify that the test kernel fixes it,
I'll land this fix in the Bionic kernel. The test kernel is here:
Linux-next commit 2be8ffed093b91536d52b5cd2c99b52f605c9ba6 does not
apply cleanly to v4.15. The commit was cc'd to upstream stable, but
without a backport. I'd like to see what upstream stable applies for a
backport.
** Changed in: linux (Ubuntu Bionic)
Status: Confirmed => Triaged
**
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Also affects: linux (Ubuntu Bionic)
Importance: High
Status: Confirmed
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