I just had a (quite) hard hang with 2.4.3-XFS (cvs from oss.sgi.com). The machine got totally unresponsive in X, and it barely managed to execute any commands from the serial console. After issuing a reboot, and waiting for quite some time, I flipped the powerswitch. Frm the syslog it looks like it started with: kernel: spurious APIC interrupt on CPU#0, should never happen. then there's repeated messages like: kernel: NETDEV WATCHDOG: eth0: transmit timed out kernel: ide_dmaproc: chipset supported ide_dma_lostirq func only: 13 kernel: hdc: lost interrupt This was on a K6-2, kernel config and hardware information available upon request. -jf - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/