On HP 500 notebook with Samsung HM121HC PATA HDD and up-to-date Kubuntu 9.10 I regularly observe similar behaviour (stalls for 20..25 seconds, HSM violations in dmesg). Did not try proposed-updates or 10.04b2 on the same HW, though .
On HP 500 notebook with Samsung HM121HC PATA HDD and up-to-date Kubuntu 9.10 I regularly observe similar behaviour (stalls for 20..25 seconds, HSM violations in dmesg).
Did not try proposed-updates or 10.04b2 on the same HW, though .