Hi, On 2008-07-01 13:00:01 -0400, Mike McCarthy wrote: > Bill Davidsen wrote: >> Mike McCarthy wrote: >>> Bill Davidsen wrote: >>>> >>>> Wonder if hardware or software is happening, sounds like an >>>> mishandled hardware error, but I'm guessing. I have a server with >>>> RAID1 and Fedora 2.6.22.14-72.fc6PAE kernel, up 72 days, no >>>> problems. I have a number of 2.6.25.7-9 machines with SW-RAID1 that are running flawlessly so far. >> Given heavy 2.6.25 use, my guess is still that the root cause of this >> is hardware, and that the change in disk code either triggers the >> hardware problem, or handles it differently. Are you by any chance >> running NCQ on your system? >> > No. This system and the drives pre-date NCQ. I think NCQ is only Same here. In my case the lockups are totally random and not related to heavy disc i/o. Actually most lockups occur when the system was quite idle. So far I tried - Replaced IDE cables - kernel upgrades up to 2.6.25.9 - removed one drive from the RAID, thus running in degraded mode - disabled CPU frequency scaling - put one drive on the PDC20276, the other on the ICH4 (82801DB) Maybe my hardware _is_ broken, but I'll try some other settings anyway (including using RTC again for ztdummy instead of HPET, disabling NOHZ etc). Cheers, MB -- Michael Bussmann <bus@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
