From: Jan Engelhardt <jengelh@xxxxxxxxxx> Date: Sat, 16 Jan 2010 02:05:54 +0100 (CET) > sd 0:0:0:0: [sda] Synchronizing SCSI cache > Power down. > CPU[13]: SUN4V mondo timeout, no forward progress after 10001 retries. > CPU[13]: CPU list [ 4 ] > CPU[13]: SUN4V mondo timeout, no forward progress after 10001 retries. > CPU[13]: CPU list [ 4 ] > [...] It just means that we're trying to send inter-cpu interrupt messages and the target cpus are not responding. Some cpus dying in the firmware or somewhere in the kernel due an unclean shutdown/poweroff would certainly cause this. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html