Alexander Dalloz wrote: > Am Do, den 30.06.2005 schrieb Mark Miksis um 1:38: > > >> I have the 3Ware 9500S-4LP (running RAID5) installed in a Dell >> Poweredge 1800 (dual EM64T Xeon, 7520 chipset). With Fedora Core 4 >> installed, everything seems fine at first glance. However, after a >> period (many minutes) of heavy disk I/O operations, the machine >> begins to slow and then becomes completely unresponsive. I get >> "APIC error on CPUn: 00(40)" in dmesg which may or may not be >> related. Nothing is logged to syslog when the failures occur. I >> have tried booting with noapic and using the uP kernel. Some of >> these configurations make the APIC error go away, but the hangs >> still occur. This machine will run fine for days or more at high >> CPU loads as long as the I/O load to the RAID card is low. > > > A known issue. Some weeks ago discussed on the CentOS list: > > http://lists.centos.org/pipermail/centos/2005-May/005824.html > > Don't know why the bugzilla ticket is restricted > > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=121434 Very interesting reading - thanks for the link. Some of those posts suggest that the newer 3Ware firmware may "improve" the issue. Otherwise, I guess I'm in the market for a different 4 channel RAID 5 SATA card. Any recommendations?