On Wed, Sep 24, 2014 at 10:30:17AM -0500, Felipe Balbi wrote: > On Wed, Sep 24, 2014 at 11:17:18AM -0400, Alan Stern wrote: > > On Wed, 24 Sep 2014, Alan Stern wrote: > > > > > > Case (6) is when Hi == Di, looking at my logs, I have: > > > > > > > > 720 [ 286.843965] SCSI CDB: 1a 00 3f 00 c0 00 > > > > 721 [ 286.844000] g_mass_storage gadget: SCSI command: MODE SENSE(6); Dc=6, Di=192; Hc=6, Hi=192 > > > > 722 [ 286.844018] g_mass_storage gadget: bulk-in set halt > > > > 723 [ 286.844034] g_mass_storage gadget: sending command-failure status > > > > 724 [ 286.844045] g_mass_storage gadget: sense data: SK x06, ASC x29, ASCQ x00; info x0 > > > > > > > > Isn't it wrong to halt in this condition ? > > > > > > No, it's correct. SK = 6 and ASC = 0x29 means Unit Attention, Reset > > > Occurred. It occurs because this is the first command the gadget has > > > received since starting up, which certainly is a form of reset. In > > > effect, this is how the device tells the host that it was just powered > > > on. > > > > Actually, looking at your log again, it seems more like this followed a > > genuine reset, not a power-on. Regardless, it's still appropriate. > > It seems to work better against my v3.16.1 desktop and Mac OS X then it > does against v3.17-rc5 (running on the development board). > > I'll try using a USB stick attached to the board. alright, USB stick attached to the board behaves perfectly, but then again I don't see any stalls from that device. Any chance I can persuade you into running a similar test with your net2272/2280 UDC ? I'm using a 500MiB tmpfs as storage backend, then just connecting to an XHCI host and looking at dmesg. A dd also triggers a few resets with v3.17-rc5 which don't happen on 3.16.1. cheers -- balbi
Attachment:
signature.asc
Description: Digital signature
