System freeze when copying files
Hello,
There was a thread back in Feb:
http://lists.debian.org/debian-user/2007/02/msg00129.html regrading a
total system freeze while copying files. I have the same problem. Cannot
ssh in, no response at all from the keyboard and I must reboot via the
power button. The two computers in question are a PPC Oopen Desktop
Workstation and a Linksys NSLU2. Both have debian sid installed.
hdparm for the PPC.
/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 16383/255/63, sectors = 156301488, start = 0
The NSLU2 has a 1 GB usb keychain (sda) which the os is installed on and
a 100 GB external USB hard drive (sdb) for data storage.
/dev/sda:
readonly = 0 (off)
readahead = 256 (on)
geometry = 121/255/63, sectors = 1952767, start = 0
/dev/sdb:
readonly = 0 (off)
readahead = 256 (on)
geometry = 19457/255/63, sectors = 312581808, start = 0
No matter what I do, the PPC freezes hard if I try to transfer a file
larger than 1 GB. The NSLU2 does not freeze. Here are the methods I have
tried all of which caused a hard freeze before the file was completely
transferred.
1) Mount the partition from the NSLU2 over nfsv4 and cp a file
2) Mount the partition from the NSLU2 over ssh using fuse and cp a file
3) scp the file from PPC to NSLU2
4) scp the file from NSLU2 to PPC
5) wget from the NSLU2 to a file offered up on a webserver located on
the PPC.
The previous thread noted that DMA should be turned on. Can you do that
for a usb external harddrive? And might that be the reason for the hard
freeze? Like I said, the NSLU2 does not freeze but the PPC does.
Thanks for any advice,
Zoho
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