> And the transition after unplug goes > > 13->12->10->8->7->6->5->3 > > implying we're missing put events. Don't know why. I used this check (with trace_scsi_dev containing the name) in put_device: if (trace_scsi && dev->type == &scsi_dev_type && trace_scsi_dev[0] == 0 || !strcmp(dev_name(dev), trace_scsi_dev))) { dev_printk ... If you want instrumentation somewhere else please let me know. Maybe there simply isn't a put_device to 0 and the NULL pointer happens for some other reason? -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- 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