Re: [linux-usb-devel] ehci problem triggerable by storage

2007-08-03 Thread Felipe Balbi
On 8/3/07, Alan Stern <[EMAIL PROTECTED]> wrote: > On Fri, 3 Aug 2007, Oliver Neukum wrote: > > > Well, I've thought a bit about this. I know a hub is to blame. Even if I did > > learn what causes this specific error, it wouldn't help in the other cases. > > These sorts of problems tend to be _very

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-08-03 Thread Alan Stern
On Fri, 3 Aug 2007, Oliver Neukum wrote: > Well, I've thought a bit about this. I know a hub is to blame. Even if I did > learn what causes this specific error, it wouldn't help in the other cases. These sorts of problems tend to be _very_ hardware dependent. That very same hub might work perfe

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-08-03 Thread David Brownell
On Friday 03 August 2007, Oliver Neukum wrote: > Well, I've thought a bit about this. I know a hub is to blame. Even if I did > learn what causes this specific error, it wouldn't help in the other cases. > IMHO improving error handling is better than avoiding this fault. But do you know *how* a hu

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-08-03 Thread Oliver Neukum
Am Freitag 03 August 2007 schrieb Greg KH: > On Mon, Jul 30, 2007 at 11:11:54AM -0700, David Brownell wrote: > > On Monday 30 July 2007, Oliver Neukum wrote: > > > > > > > But -- never actually having had both a highspeed USB sniffer *AND* > > > > hardware exhibiting this problem in the same place

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-08-02 Thread Greg KH
On Mon, Jul 30, 2007 at 11:11:54AM -0700, David Brownell wrote: > On Monday 30 July 2007, Oliver Neukum wrote: > > > > > But -- never actually having had both a highspeed USB sniffer *AND* > > > hardware exhibiting this problem in the same place -- I've not been > > > able to test that theory. > >

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-07-30 Thread David Brownell
On Monday 30 July 2007, Oliver Neukum wrote: > > > But -- never actually having had both a highspeed USB sniffer *AND* > > hardware exhibiting this problem in the same place -- I've not been > > able to test that theory. > > The hub in question is light and small. Give me your address and I'll >

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-07-30 Thread Oliver Neukum
Am Samstag 28 Juli 2007 schrieb David Brownell: > On Friday 27 July 2007, Alan Stern wrote: > > In my experience this sort of thing tends to be caused by low-level > > hardware communications errors.  Noise in the USB data lines or a > > missing handshake packet, stuff like that.  Not much extra d

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-07-28 Thread Alan Stern
On Sat, 28 Jul 2007, David Brownell wrote: > On Friday 27 July 2007, Alan Stern wrote: > > > stressing a flash disk I rapidly get this error: > > > > > Jul 27 12:35:00 oenone kernel: ehci_hcd :00:02.2: devpath 3.4 ep1in > > > 3strikes > > > Jul 27 12:35:00 oenone kernel: usb-storage: Status

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-07-28 Thread David Brownell
On Friday 27 July 2007, Alan Stern wrote: > > stressing a flash disk I rapidly get this error: > > > Jul 27 12:35:00 oenone kernel: ehci_hcd :00:02.2: devpath 3.4 ep1in > > 3strikes > > Jul 27 12:35:00 oenone kernel: usb-storage: Status code -71; transferred > > 8192/122880 > > > Is there a

Re: [linux-usb-devel] ehci problem triggerable by storage

2007-07-27 Thread Alan Stern
On Fri, 27 Jul 2007, Oliver Neukum wrote: > Hi, > > stressing a flash disk I rapidly get this error: > Jul 27 12:35:00 oenone kernel: ehci_hcd :00:02.2: devpath 3.4 ep1in > 3strikes > Jul 27 12:35:00 oenone kernel: usb-storage: Status code -71; transferred > 8192/122880 > Is there a way I

[linux-usb-devel] ehci problem triggerable by storage

2007-07-27 Thread Oliver Neukum
Hi, stressing a flash disk I rapidly get this error: Jul 27 12:35:00 oenone kernel: usb-storage: *** thread awakened. Jul 27 12:35:00 oenone kernel: usb-storage: Command READ_10 (10 bytes) Jul 27 12:35:00 oenone kernel: usb-storage: 28 00 00 00 25 f8 00 00 3c 00 Jul 27 12:35:00 oenone kernel: us