Hi, Is the following normal on an X9SRL-F board (bios 1.0a)?
In the manual it states: Data Direct I/O Select Enabled to enable Intel I/OAT (I/O Acceleration Technology), which significantly reduces CPU overhead by leveraging CPU architectural improvements and freeing the system resource for other tasks. The options are Disabled and Enabled. Default is Enabled. When enabled in the kernel, I see the following: [ 0.696357] ioatdma: Intel(R) QuickData Technology Driver 4.00 [ 0.696487] ioatdma 0000:00:04.0: channel error register unreachable [ 0.696546] ioatdma 0000:00:04.0: channel enumeration error [ 0.696604] ioatdma 0000:00:04.0: Intel(R) I/OAT DMA Engine init failed [ 0.696721] ioatdma 0000:00:04.1: channel error register unreachable [ 0.696779] ioatdma 0000:00:04.1: channel enumeration error [ 0.697522] ioatdma 0000:00:04.1: Intel(R) I/OAT DMA Engine init failed [ 0.697617] ioatdma 0000:00:04.2: channel error register unreachable [ 0.697681] ioatdma 0000:00:04.2: channel enumeration error [ 0.697739] ioatdma 0000:00:04.2: Intel(R) I/OAT DMA Engine init failed [ 0.697831] ioatdma 0000:00:04.3: channel error register unreachable [ 0.697890] ioatdma 0000:00:04.3: channel enumeration error [ 0.697948] ioatdma 0000:00:04.3: Intel(R) I/OAT DMA Engine init failed [ 0.698037] ioatdma 0000:00:04.4: channel error register unreachable [ 0.698095] ioatdma 0000:00:04.4: channel enumeration error [ 0.698153] ioatdma 0000:00:04.4: Intel(R) I/OAT DMA Engine init failed [ 0.698245] ioatdma 0000:00:04.5: channel error register unreachable [ 0.698303] ioatdma 0000:00:04.5: channel enumeration error [ 0.698360] ioatdma 0000:00:04.5: Intel(R) I/OAT DMA Engine init failed [ 0.698449] ioatdma 0000:00:04.6: channel error register unreachable [ 0.698508] ioatdma 0000:00:04.6: channel enumeration error [ 0.698565] ioatdma 0000:00:04.6: Intel(R) I/OAT DMA Engine init failed [ 0.698676] ioatdma 0000:00:04.7: channel error register unreachable [ 0.698735] ioatdma 0000:00:04.7: channel enumeration error [ 0.698792] ioatdma 0000:00:04.7: Intel(R) I/OAT DMA Engine init failed -- Also, I tried using ASPM (enabled in BIOS), but since ACPI Linux query is ignored, it fails to work: [ 0.562229] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored I assume this is something Supermicro has to fix? Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
