Sebastian Kuzminsky wrote:
Now it works, but I dont trust it one bit. I had been seeing almost immediate, perfectly repeatable hard lockups in 2.6.15-rc5 and 2.6.15-rc5-mm3, when using sata_mv, RAID, and LVM together. Nothing in the syslog or on the console, and the system is totally unresponsive to the keyboard & network. My hardware setup is: four Seagate Barracuda 500 GB disks, on a Marvell MV88SX6081 8-port SATA-II PCI-X controller, on a PCI-X bus (64/66). The disks work great when accessed directly. They work great when used as four PVs for LVM, and when assembled into a 4-disk RAID-6. But when I make a RAID-6 array out of them, and use the array as a PV, the system would hang completely, within seconds. (This is with LVM 2.02.01, libdevicemapper 1.02.02, and dm-driver 4.5.0.) I turned on all the debugging options in the kernel config hoping to get some insight, but this "debug" kernel doesnt crash. It's running fine, and I'm pounding on it. A timing problem in the interaction between LVM and RAID? Some kind of wierd heisenbug.... I'd be happy to do any debugging tests people suggest.
I've been waiting for more info on this, did it get fixed? 2.6.15? -- bill davidsen <davidsen@xxxxxxx> CTO TMR Associates, Inc Doing interesting things with small computers since 1979 - 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
