Hello, Kay. As the $SUBJ says, why does udev set timeout for all SCSI devices? It's the following two rules. 50-udev-default.rules:SUBSYSTEM=="scsi", KERNEL=="[0-9]*:[0-9]*", ACTION=="add", ATTR{type}=="0|7|14", ATTR{timeout}="60" 50-udev-default.rules:SUBSYSTEM=="scsi", KERNEL=="[0-9]*:[0-9]*", ACTION=="add", ATTR{type}=="1", ATTR{timeout}="900" The appropriate default timeout differs depending on the transport and the type of the attached device, so the above two rules harm more than help. The affect of the above two rules weren't visible for some reason but with recent block layer timeout update, they actually work and cause problems. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html