Hi folks, Just noticed after the recent update to kernel 3.3.6, an attempt to remove a SATA HDD: # echo scsi remove-single-device 3 0 0 0 > /proc/scsi/scsi takes very long time: $ dmesg sd 3:0:0:0: [sdb] Synchronizing SCSI cache sd 3:0:0:0: timing out command, waited 360s sd 3:0:0:0: timing out command, waited 360s sd 3:0:0:0: timing out command, waited 360s sd 3:0:0:0: [sdb] Result: hostbyte=0x00 driverbyte=0x00 sd 3:0:0:0: [sdb] Stopping disk then adding an another HDD to ANY scsi channel does not work anymore. I've checked three differeent HDDs with the same result. The controller is : $ lspci | grep SATA 00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA Controller [IDE mode] (rev 01) I used to use the hot swapping frequently before, never had such a problem. Am I missing something? Thanks for advices/ideas. Sergey