On 7/28/21 5:50 PM, Jarkko Sakkinen wrote:
On Mon, Jul 26, 2021 at 11:00:51PM -0400, Stefan Berger wrote:
On 7/26/21 10:42 PM, Jarkko Sakkinen wrote:
On Mon, Jul 12, 2021 at 12:25:05PM -0400, Stefan Berger wrote:
From: Stefan Berger <stefanb@xxxxxxxxxxxxx>
When rngd is run as root then lots of these types of message will appear
in the kernel log if the TPM has been configure to provide random bytes:
[ 7406.275163] tpm tpm0: tpm_transmit: tpm_recv: error -4
The issue is caused by the following call that is interrupted while
waiting for the TPM's response.
sig = wait_event_interruptible(ibmvtpm->wq,
!ibmvtpm->tpm_processing_cmd);
The solution is to use wait_event() instead.
Why?
So it becomes uninterruptible and these error messages go away.
We do not want to make a process uninterruptible. That would prevent
killing it.
I guess we'll have to go back to this one then:
https://www.spinics.net/lists/linux-integrity/msg16741.html
Stefan
/Jarkko
