On Wed, Sep 21, 2022 at 02:01:24PM +0900, Damien Le Moal wrote: > On 9/14/22 00:28, Limonciello, Mario wrote: > > > > I think what happened here is there was related patches from another party > > that got tangled up with this. > > Niklas and I are investigating this again now because Niklas discovered that > one AMD AHCI adapter leads to drive resets when the drive goes to low power > mode. The adapter is: > > SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA > Controller [AHCI mode] [1022:7901] (rev 51) > > If we switch to performance mode (no LPM), the reset disapears. But if LPM > is enabled, any command sent after the disk goes to low power mode (device > initiated), there is a link reset... FTR, I sent out a patch for this issue: https://lore.kernel.org/linux-ide/20220921155753.231770-1-niklas.cassel@xxxxxxx/T/#u Kind regards, Niklas
