Hi, On 5/31/21 6:36 AM, Jarkko Sakkinen wrote: >> Interestingly enough the first backtrace is also happening on a: >> "Dell Inc. XPS 13 9310/0MRT12, BIOS 2.2.0 04/06/2021" >> >> So it seems that at least with 5.12.6 (which has the last 2 fixes) >> all reports are about the XPS 13 9310. I wonder if there is an >> issue with the TPM interrupt line on the XPS 13 9310; I've asked the >> reporters to try adding tpm_tis.interrupts=0 to their kernel commandline. > > This is helpful for sure that these all are happening on matching hardware. So our kernel-backtrace tracking info (ABRT) just recorded a third backtrace with a kernel >= 5.12.6, again on the XPS 13 9310, so now we have 3 variants: 1. Backtrace starting with a call to ima_add_boot_aggregate https://bugzilla.redhat.com/show_bug.cgi?id=1963712 2. Backtrace starting with a call to tpm_dev_async_work: https://bugzilla.redhat.com/show_bug.cgi?id=1964974 (note this one is not easily reproducible) 3. Backtrace starting with a call to rng_dev_read: https://bugzilla.redhat.com/show_bug.cgi?id=1920510 3. is the new one. All bugs linked above are public, all 3 backtraces so far have only been reported on the XPS 13 9310 (with kernel >= 5.12.6) and I've asked all the reporters to check if tpm_tis.interrupts=0 helps. Regards, Hans
