Re: [BUG] uas: JMS578 returns reproducibly incorrect data after host reboot

From: Oliver Neukum

Date: Mon Oct 12 2026 - 06:05:06 EST


On 17.09.26 19:20, djraszit wrote:

So the current comparison is:

USB_MSD_PWR_OFF_TIME=1000, bus-powered Genesys:
-> BAD-data after reboot
-> invalid alternate GPT
-> BAD direct-read hash

USB_MSD_PWR_OFF_TIME=1000, externally powered Genesys:
-> 5 consecutive reboots GOOD

USB_MSD_PWR_OFF_TIME=0, VBUS supplied by the Pi:
-> previously reproducible "Cannot enable" after consecutive reboots

USB_MSD_PWR_OFF_TIME=0, externally powered Genesys:
-> several consecutive reboots GOOD

Hi,

if we come back to this , is there anything the kernel can do,
even conceptually speaking?

Regards
Oliver