Messages in this thread | | | Subject | Re: [PATCH] tpm: ibmvtpm: Avoid error message when process gets signal while waiting | From | Stefan Berger <> | Date | Mon, 26 Jul 2021 23:00:51 -0400 |
| |
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@linux.ibm.com> >> >> 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.
Stefan
> > /Jarkko
| |