Re: USB Enumeration

[Udit Kumar <udit.kumar@nxp.com>]

Ticket 
https://bugzilla.tianocore.org/show_bug.cgi?id=729 is created. 

Thx
Udit

> -----Original Message-----
> From: Udit Kumar
> Sent: Thursday, October 05, 2017 6:55 PM
> To: 'Zeng, Star' <star.zeng@intel.com>
> Cc: edk2-devel-01 <edk2-devel@lists.01.org>
> Subject: RE: [edk2] USB Enumeration
> 
> Thanks Star.
> I will open the ticket with needed information.
> 
> What looks to me when we are enabling slot again then memory for all endpoint
> is not allocated.
> Allocation is done for endpoint[0] say slot context.
> 
> FYI, If I ignore this error then assert is reported in
> /MdeModulePkg/Core/Dxe/Mem/Page.c(722)
> 
> Regards
> Udit
> 
> > -----Original Message-----
> > From: Zeng, Star [mailto:star.zeng@intel.com]
> > Sent: Thursday, October 05, 2017 6:16 PM
> > To: Udit Kumar <udit.kumar@nxp.com>; edk2-devel-01 <edk2-
> > devel@lists.01.org>
> > Cc: Zeng, Star <star.zeng@intel.com>
> > Subject: RE: [edk2] USB Enumeration
> >
> > We (I) did not see this appearance before, but the ASSERT should be
> unexpected.
> >
> > Could you try to use error handling instead of ASSERT for this line of
> > code and see whether it works or not for you?
> >
> > What are the models of the Host controller and USB device?
> > Do you have full debug log for that?
> > Did you meet the ASSERT before(for example, using the code base at the
> > beginning of this year) with the same Host controller and USB device?
> >
> > Could you submit Bugzilla at https://bugzilla.tianocore.org/ with the
> > information for the questions you have above? Then we can have follow
> > up to check the detail by the information provided (if we can produce
> > it by ourselves, that will be better). :)
> >
> >
> > Thanks,
> > Star
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> > Udit Kumar
> > Sent: Thursday, October 5, 2017 8:05 PM
> > To: edk2-devel-01 <edk2-devel@lists.01.org>
> > Subject: [edk2] USB Enumeration
> >
> > Dear Edk2 Expert,
> >
> > With edk2 shell, I am doing simple copy with USB, Flow is below
> >
> > Start- USB device is enumerated and given address 1.
> > 1. On Shell , cp a b
> > 2- After a while Host controller reports an error
> > 3- Layer above Host controller, reset the USB port
> > 4-  and Slot is enabled again ( this time address 2 was given)
> > 5- Now FatIFileAccess calls FatCleanupVolume, which in turn calls
> > XhcBulkTransfer And assert is reported at
> > MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c(1800): TrsRing != ((void *)
> > 0)
> >
> > Is this expected behavior to assert, or reporting an error will be
> > fine in such cases.
> >
> > Thanks for help
> >
> > Regards
> > Udit
> >
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