RE: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-31 Thread kus Kusche Klaus
> > > Latency is the subject of a separate email. Does this > > > increase in latency > > > occur only when you see the errors, or whenever you do a > large data > > > transfer? In fact, I would suspect the errors to _decrease_ > > > the latency > > > with respect to a normal transfer. > >

RE: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-31 Thread Alan Stern
On Thu, 31 Mar 2005, kus Kusche Klaus wrote: > > Latency is the subject of a separate email. Does this > > increase in latency > > occur only when you see the errors, or whenever you do a large data > > transfer? In fact, I would suspect the errors to _decrease_ > > the latency > > with

RE: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-31 Thread kus Kusche Klaus
> Latency is the subject of a separate email. Does this > increase in latency > occur only when you see the errors, or whenever you do a large data > transfer? In fact, I would suspect the errors to _decrease_ > the latency > with respect to a normal transfer. I observe from <1 to 2 ms on

RE: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-31 Thread kus Kusche Klaus
Latency is the subject of a separate email. Does this increase in latency occur only when you see the errors, or whenever you do a large data transfer? In fact, I would suspect the errors to _decrease_ the latency with respect to a normal transfer. I observe from 1 to 2 ms on

RE: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-31 Thread Alan Stern
On Thu, 31 Mar 2005, kus Kusche Klaus wrote: Latency is the subject of a separate email. Does this increase in latency occur only when you see the errors, or whenever you do a large data transfer? In fact, I would suspect the errors to _decrease_ the latency with respect to a

RE: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-31 Thread kus Kusche Klaus
Latency is the subject of a separate email. Does this increase in latency occur only when you see the errors, or whenever you do a large data transfer? In fact, I would suspect the errors to _decrease_ the latency with respect to a normal transfer. I observe from 1

Re: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-30 Thread Alan Stern
On Wed, 30 Mar 2005, kus Kusche Klaus wrote: > When trying a "dd if=/dev/sda of=/dev/null" (where /dev/sda is an USB > memory stick), this works fine for some seconds (and actually transfers > data at around 700-1000 KB/s), but ends up with some I/O errors sooner > or later, which cause the

Re: [BUG] 2.6.11: Random SCSI/USB errors when reading from USB memory stick

2005-03-30 Thread Alan Stern
On Wed, 30 Mar 2005, kus Kusche Klaus wrote: When trying a dd if=/dev/sda of=/dev/null (where /dev/sda is an USB memory stick), this works fine for some seconds (and actually transfers data at around 700-1000 KB/s), but ends up with some I/O errors sooner or later, which cause the device to