On Thu, 2020-09-03 at 10:07 -0500, William Roberts wrote: > Hello, > > I maintain a lot of the userspace components in the tpm2-software > opensource community. We had a bug come in where we're getting oom > TPM errors when using /dev/tpmrm0. The bug seems to go away when we > use the userspace resource manager tpm2-abrmd. Thai leads me to > believe that there is a kernel bug. > > The question is, "is anyone aware of any bugs in the kernel RM that > could cause this?" > > The kernel version is: > 5.4.0-42-generic #46-Ubuntu > > The discussion can be found here: > - https://github.com/tpm2-software/tpm2-pkcs11/issues/567 That bug report is pretty unhelpful. What specific error messages does the kernel give? I'm a heavy TPM key user (so lots of sessions and volatile handles) I run RSA keys through the TPM for all my openvpn sessions, ssh sessions and gpg transactions (mostly with RSA keys), admittedly using the IBM TSS, and I've never seen this in any of my systems. James
