Hi, Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> writes: > Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> writes: >>> On your testing/next, I see considerable slow down and file >>> corruption in mass storage. >>> >>> After bisecting, this patch seems to be the first one that shows >>> problems. The device fails even enumeration here. >>> >>> I haven't looked in detail at the changes but, do you have any ideas? >>> >>> I have attached driver logs. >> >> g_mass_storage doesn't use sglists, so I find this to be unlikely. I'll >> test again but I didn't notice any problems on my side. > > Few things: > > Host sent you a few Resets which I don't know why they're there: > > irq/16-dwc3-2849 [002] d..2 45.257835: dwc3_event: event (00000101): Reset [U0] > > [...] > > irq/16-dwc3-2849 [002] d..2 45.352847: dwc3_event: event (00000101): Reset [U0] > > [...] > > irq/16-dwc3-2849 [002] d..2 45.257835: dwc3_event: event (00000101): Reset [U0] > > [...] > > 4 requests per endpoint, why so few? To test throughput, I've been using > 96 requests per endpoint :-p > > file-storage-2848 [003] ...1 45.319500: dwc3_alloc_request: ep1in: req ffff8ba68ead9ce8 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319505: dwc3_alloc_request: ep1out: req ffff8ba68eadad68 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319510: dwc3_alloc_request: ep1in: req ffff8ba68ead9ef8 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319514: dwc3_alloc_request: ep1out: req ffff8ba68ead98c8 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319519: dwc3_alloc_request: ep1in: req ffff8ba68eadb9c8 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319524: dwc3_alloc_request: ep1out: req ffff8ba68eadb5a8 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319528: dwc3_alloc_request: ep1in: req ffff8ba68eadb188 length 0/0 zsI ==> 0 > file-storage-2848 [003] ...1 45.319533: dwc3_alloc_request: ep1out: req ffff8ba68ead9ad8 length 0/0 zsI ==> 0 > > In fact, there are no bulk ep transfers on your log. Why's that? What is > the host doing? I can reproduce this here and I'm now looking at it. -- balbi
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