I have two large firewire drives, each attached to a different machine. When I try to copy a folder full of files (or even a few files, one at a time), after a few megabytes have been copied, the transfer stalls -- indefinitely (I've let it sit for hours with no further progress). All attempts to cancel the copy fail. I've even logged in via the terminal, as root, and tried to kill the process (which appears to be a zombie process) -- no go. It replies that the process doesn't exist, yet it appears on the list of processes. Curiously, I can mount other remote volumes and open documents, close them, unmount those volumes (but not the volume that is being copied to), and continue to work as if nothing out of the ordinary is going on. Occasionally, I can get it to stop the copy by unplugging the firewire cable (with the usual admonishment that I've improperly unmounted a volume), but usually it crashes the machine. The only certain way of stopping it is by restarting, and occasionally I have to login via terminal as root and give the restart command.
From the other end, after a stall, I can connect to the machine where the copy was initiated, and mount any other volume with no problem, but if I try to mount that volume, I get the spinning beach ball that doesn't stop. Again, once that has occurred, a restart is the only way out.
Other things I've tried:
- Transfers from a drive attached to an ultra-wide scsi card also stall in the same manner.
- Transfers from a drive attached to the internal scsi bus don't stall -- indicating that it may have to do with the PCI bus.
- Rearranging the PCI cards doesn't help.
- Removing PCI cards that are unrelated, or unnecessary, doesn't help.
- De-interleaving RAM doesn't help, and actually caused other problems.
- While troubleshooting this, I retired the 9500 that I was originally using, and transferred everything to a 9600 -- didn't help.
- Transferring via FTP also stalls.
I'm still trying things, but if anyone can shed light on this ...
Here's my setup:
PM9600 (originally a 9500) -- this is the machine where the problems are occurring
Sonnet G4/450
512 MB RAM
2 hard drives and original CD-ROM attached to internal bus.
Slot 1 (top): ATI Radeon Mac Edition
Slot 2: M-Audio Revolution 7.1 (w/ latest drivers)
Slot 3: IOGear 2-port USB 2.0
Slot 4: Firewire Depot 3-port Firewire
Slot 5: Acard UW SCSI w/2 drives attached -- I've added this card since the problems first started, and it doesn't appear to effect the problem one way or the other.
OS X 2.6
Linksys 4 port router w/ broadband support
PM7500 Powerlogix G3/400 512 MB RAM 2 hard drives and Sony CD-ROM attached to internal bus. Slot 1 (inside): IOGear 2-port USB 2.0 Slot 2: Firewire Depot 3-port Firewire Slot 3: ATI Radeon 7000 Mac OS X 2.6
The original configuration on the 9600 had the PCI cards in reverse order with the video card in the bottom slot. As I said, above, this all worked a few months ago (except that I've upgraded the drivers for the M-Audio card during the troubleshooting process -- the good news is that the new drivers make the card work better). Also, transfers between any drives on the 9600 work properly.
One other difference since *before* the problem started: I've *removed* a second video card, an ATI Xclaim VR that was positioned next to the Radeon. And I moved everything over one slot.
Any help would be greatly appreciated, Reagan
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