Re: [RFT] usbcore: Bug fix: system can't suspend with USB3.0 device connected to USB3.0 hub

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----- Original Message -----
> ----- Original Message -----
> > On Tue, Apr 12, 2011 at 06:25:26PM -0400, CAI Qian wrote:
> > >
> > >
> > > ----- Original Message -----
> > > > On Tue, Apr 12, 2011 at 04:34:10PM -0400, CAI Qian wrote:
> > > > > > If auto-suspend is working properly, you
> > > > > > should
> > > > > > see messages like:
> > > > > >
> > > > > > "usb 9-1: usb auto-suspend"
> > > > > Yes, there was a message there.
> > > > >
> > > > > kernel: usb 9-1.2: usb auto-suspend
> > > >
> > > > Ok, will you please try the patch Alan sent (the one that
> > > > removes
> > > > the
> > > > can_submit check). I am able to reproduce this with Linus'
> > > > latest
> > > After applied this patch on the top of the 5 patches, it is now
> > > working.
> > > Awesome! Thanks!
> >
> > Great! Can you test with just Andiry's work-around patch and Alan's
> > patch? Andiry's 5 patches are too large to go into 2.6.39, so we
> > need a quick fix for 2.6.39.
> That is also working for me.
> 
> CAI Qian
> > I noticed that there was one issue with the resume from hibernate on
> > my
> > system, and I'll send you a patch shortly.
I have also noticed one major problem though that the USB 3.0 storage
device is gone after the hibernate/resume.

usb 8-1: usb auto-suspend
hub 8-0:1.0: hub_suspend
usb usb8: bus auto-suspend
xhci_hcd 0000:1a:00.0: suspend USB 2.0 root hub
xhci_hcd 0000:1a:00.0: `MEM_WRITE_DWORD(3'b000, 32'hffffc90012858450, 32'ha0002a0, 4'hf);
xhci_hcd 0000:1a:00.0: `MEM_WRITE_DWORD(3'b000, 32'hffffc90012858440, 32'hc000e61, 4'hf);
xhci_hcd 0000:1a:00.0: `MEM_WRITE_DWORD(3'b000, 32'hffffc90012858444, 32'h8, 4'hf);
sd 5:0:0:0: [sdb] Unhandled error code
sd 5:0:0:0: [sdb]  Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
sd 5:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 00 01 00 00 01 00
end_request: I/O error, dev sdb, sector 8
Buffer I/O error on device sdb, logical block 1
sd 5:0:0:0: [sdb] Unhandled error code
sd 5:0:0:0: [sdb]  Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
sd 5:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 00 01 00 00 01 00
end_request: I/O error, dev sdb, sector 8
Buffer I/O error on device sdb, logical block 1
sd 5:0:0:0: [sdb] Unhandled error code
sd 5:0:0:0: [sdb]  Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
sd 5:0:0:0: [sdb] CDB: Read(10): 28 00 2b aa 14 74 00 00 01 00
end_request: I/O error, dev sdb, sector 5860533152
Buffer I/O error on device sdb, logical block 732566644

...

CAI Qian
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