are you able to tell what's reading/writing the EFI variables? what are the few lines right before the loop starts?
On Fri, Dec 6, 2019 at 10:23 AM Jose Trujillo via coreboot <[email protected]> wrote: > > Dear Matt/All: > > I enabled Tianocore debug in coreboot and the serial debug dump showed me > Tianocore was trying to open a ATA / ATAPI device and was getting stuck > there, so, i disabled a still driverless "ATA" device devicetree until I > attach some driver. > > After flashing this change, the first boot/reboot will go without delay > (normal fast tianocore boot) but after the second boot/reboot the serial dump > shows the following long and repeated loop of the following: > > Added variable: 0x0, val size: 0 > Found variable: key size: 0x0, val size: 0 > Added variable: 0x0, val size: 0 > Found variable: key size: 0x0, val size: 0 > Added variable: 0x0, val size: 0 > Found variable: key size: 0x0, val size: 0 > Added variable: 0x0, val size: 0 > Found variable: key size: 0x0, val size: 0 > Added variable: 0x0, val size: 0 > Found variable: key size: 0x0, val size: 0 > Added variable: 0x0, val size: 0 > Found variable: key size: 0x0, val size: 0 > > Several minutes later boots normal. > If someone here knows how to fix it or suspect which could be the reason > please let me know. > I will ask for help in the EDK2 mail list too. > > Thank you, > Jose Trujillo. > > > > are you getting serial output via it from coreboot? If not, enabling > > Tianocore debug output is just going to make that boot time longer. > > > > I'd recommend disabling all serial output and seeing what your boot > > time is then. If normal, then you know it's the culprit and can start > > debugging the coreboot side of things > > > _______________________________________________ > coreboot mailing list -- [email protected] > To unsubscribe send an email to [email protected] _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
