I was reading throug the related upstream bug 
opened:https://lore.kernel.org/regressions/[email protected]/T/#u
My SSD is not Samsung, but the symptons are the same
# sudo hdparm -I /dev/disk/by-id/ata-M4-CT064M4SSD1_00000000123109116C75|grep 
"interface power"

           *    Device-initiated interface power management
Using the suggested workaround:ahci.mobile_lpm_policy=1DIPM is disabled on disk:
# hdparm -I /dev/disk/by-id/ata-M4-CT064M4SSD1_00000000123109116C75|grep 
"interface power"
                Device-initiated interface power management

And now my system reboots perfectly.
So I guess my problem would be solved if DIPM is also disabled on Crucial M4 
disks when connected to ATI AHCI controllers.
Am I right?
  En miércoles, 24 de septiembre de 2025, 01:37:10 CEST, David Garabana 
<[email protected]> escribió:  
 
 
 >Found this bug:>https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1091696>It 
 >seems the same bug that mine.







  
       

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