I have a console - and have booted with "pci=nomsi" and the behavior is ~the same or even a little worse in some case (but not by much)... I will send kernel log & the .config file separately to you... (quite long)... Further, you should note that my arch/ppc does NOT have MSI Capability (CONFIG_PCI_MSI) - thus I think this might be Is there any debugging I can turn on in the proc or sysfs? that might give more clues (e.g.: /proc/sys/dev/scsi/logging_level)? t -----Original Message----- From: Mark Lord [mailto:liml@xxxxxx] Sent: Wednesday, November 14, 2007 5:30 PM To: Morrison, Tom Cc: Jeff Garzik; linux-ide@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx Subject: Re: 2.6.23.1 - sata_mv (7042) hang with large file operations Morrison, Tom wrote: > I have gotten it to boot from those hard-drives and it > has the same behavior: > > Copying a large file to the same partition (>150MEG) > causes the system to hang (no I/O - no input/output - > nothing - complete freeze - like a primary resource > is locked up or interrupts got completely & totally > turned off in an ISR and its pending for something? > > Only way to get out of this is to power-cycle the box! .. Okay, a couple of things: Do this from a text console, not a GUI. And preferably without ever starting klogd/syslogd during init. That way you've a much better chance of seeing some kernel diagnostic messages when it locks up. Can you boot with "nomsi" kernel parameter? And I guess we'll need to see the entire kernel .config as well. This is a tricky one. The driver behaves fine for me here with a 7042 rev.2 on PCIe in my x86-32 box. Cheers - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html