On Sun, Mar 02, 2025 at 09:32:07PM +0100, Eric wrote: > Hi Niklas, > > Le 02/03/2025 à 20:32, Niklas Cassel a écrit : > > On Sun, Mar 02, 2025 at 05:03:48PM +0100, Salvatore Bonaccorso wrote: > > > Hi Mario et al, > > > > > > Eric Degenetais reported in Debian (cf. https://bugs.debian.org/1091696) for > > > his report, that after 7627a0edef54 ("ata: ahci: Drop low power policy board > > > type") rebooting the system fails (but system boots fine if cold booted). > > > > > > > For what it's worth, before getting these replies I tested the > ahci.mobile_lpm_policy=1 kernel parameter, which did work around the > problem. I'm glad that you have a workaround to make your system usable. > > > > Eric is using the latest SSD fimware version. So from other peoples reports, > > I would expect things to work for him as well. > > > > However, no one has reported that their UEFI does not detect their SSD. > > This seems to be either SSD firmware bug or UEFI bug. > > > > I would expect your UEFI to send a COMRESET even during a reboot, and a > > according to AHCI spec a COMRESET shall take the decide out of sleep states. > > > > Considering that no one else seems to have any problem when using the latest > > firmware version for this SSD, this seems to be a problem specific to Eric. > > So... UEFI bug? > > > > Have you tried updating your BIOS? > > I had not tried to update my bios (bit shy on this due to a problem long ago > with a power failure during bios update which left me with an unbootable > machine). > > However, as far as I see, there is no newer version of it. Ok. So far, this just sounds like a bug where UEFI cannot detect your SSD. UEFI problems should be reported to your BIOS vendor. It would be interesting to see if _Linux_ can detect your SSD, after a reboot, without UEFI involvement. If you kexec into the same kernel as you are currently running: https://manpages.debian.org/testing/kexec-tools/kexec.8.en.html Do you see your SSD in the kexec'd kernel? Kind regards, Niklas
