>
> > reads fine. Write relatively small amounts fine. On larger writes (few
> > hundred MB?), freezes the system with no messages.
>
> Nothing in the log either? No oops, nothing? How long did you wait before
> rebooting?
just tried copying a 32MB file. The shell froze on the following read
(guess failed on writing cached write). No messages at all, console or
log. All subsequent attempts to access the device hang: no
messages. Drive light off. Waited 1/2 hour or so.
Hard reset. let System come up. Then try to fsck usb-disk: part way
through, this device hangs. Drive light on. No messages. top shows
fsck.ext2 in ``D' state with no CPU use. Wait 20 min (after getting
into this state). Give up for the night.
>
> Do you have any other device you can try writing this much data to at this
> rate? (To try to pinpoint the error.)
My only other USB device is a scanner- I can't write too much to it.
% cat /proc/bus/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB OHCI Root Hub
S: SerialNumber=c8887000
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=ff MxPS=64 #Cfgs= 1
P: Vendor=05ab ProdID=0031 Rev= 1.00
S: Manufacturer=In-System Design
S: Product=USB Storage Adapter
S: SerialNumber=98A421CF7EC687CD
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 98mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=ff Driver=usb-storage
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl= 32ms
The only messages in the log are from module insertion of hub,
usb-storage and scsi load stuff- nothing between loading and the hang.
Suggestions for debug flags to enable?
thanks,
Charles
--
Charles Schwieters email: [EMAIL PROTECTED]
www: http://schwieters.org/cds
phone: (301) 402-4914 FAX: (301) 402-2867
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