Hi,
On 21-12-16 12:42, Oliver Neukum wrote:
On Wed, 2016-12-21 at 17:09 +0530, George Cherian wrote:
Hi Oliver,
I was working with this JMicron device and using the uas driver.
I am seeing the following 2 issues.
1) On connect I see the following messages.
Thanks. Do you want to submit it to Greg?
The patch is fine.
2) On disconnect I am seeing the following issue
scsi host4: uas_post_reset: alloc streams error -19 after reset
sd 4:0:0:0: [sdb] Synchronizing SCSI cache
This is more fatal because after these messages the USB port becomes
unusable. Even an lsusb invocation hangs for ever.
Ouch. That points to a logic error. We should not reset if
a device is gone.
Ah good point, so instead of just seeing a disconnect, something
is triggering a reset, and then we try to alloc stream on the
disconnected usb port and that apparently makes the xhci controller
quite unhappy.
Regards,
Hans
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