Ashok,
Thank you for the comments. It's just wierd. I think I need more test to get
the reason.
Regards,
Lewis
> Date: Tue, 23 Oct 2007 07:42:30 -0700> Subject: RE: Does USB work on 2.6.10
> on DVEVM board?> From: [EMAIL PROTECTED]> To: [EMAIL PROTECTED]> CC:
> davinci-linux-open-source@linux.davincidsp.com> > >> > Hi, Ashok, My board
> just booted up as in the attached Capture5.txt. I just> > kept plug and
> unplug the USB, power supply, etc. But I know it will fail> > again in the
> future as this happend several times.> > Just some more information.> > Lewis
> Liu,> > Sorry for the very late response.> I have tried your .config file. it
> works fine. There is no issue, but> as you told it may fail in future. i will
> test and let you know.> > This is just my assumption, just want to share with
> you.> the file Capture5.txt has the following lines> ---> usb 1-1: new high
> speed USB device using musb_hdrc and address 2> ^Mhub 1-1:1.0: USB hub found>
> ^Mhub 1-1:1.0: 4 ports detected> ^Musb 1-1.2: new high speed USB device using
> musb_hdrc and address 3> ---> here, the hub which you connected is getting
> address 2, and the device(usb> pendrive) getting address 3. and kernel boots
> fine.> > > the file Capture4.txt has NO such lines,because you unpluged these
> 2> device and kernel boots fine> > > the file Capture3.txt has the following
> lines> ------> hub 1-0:1.0: USB hub found> ^Mhub 1-0:1.0: 1 port detected>
> ^..............................(as we don't want these lines)>
> ...............................(as we don't want these lines)> ^Musb 1-1: new
> high speed USB device using musb_hdrc and address 2>
> ................................(as we don't want these lines)>
> ................................(as we don't want these lines)> usb 1-1:
> khubd timed out on ep0out> ^Musb 1-1: khubd timed out on ep0out> ^Musb 1-1:
> device not accepting address 2, error -110> ^Musb 1-1: new high speed USB
> device using musb_hdrc and address 3> ^MUnable to handle kernel NULL pointer
> dereference at virtual address> 00000020> ^Mpgd = c0004000> ^M[00000020]
> *pgd=00000000> ^MInternal error: Oops: 17 [#1]> ^MModules linked in:> ^MCPU:
> 0> ^MPC is at musb_h_ep0_irq+0x108/0x2d4> > .> ... etc> -------> here, the
> hub which you connected gets the address 2, and hub refuses that> address, so
> there is a crash.> we have to check that error handling path it seems.> > my
> hubs works perfectly, and NOT refusing any address. so i have to search> for
> some other hub, which can create problem.> > if possible, try with different
> hub and usb pen drive, let me know your> thoughts.> > > Ashok> > > >> >
> Thanks,> > Lewis> >> >> > From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Thu, 11
> Oct 2007> > 22:10:17 -0700CC: [EMAIL PROTECTED]:> > RE: Does USB work on
> 2.6.10 on DVEVM board?> >> >> > Hi, Ashok, For some reason the Hotmail
> doesn't allow me to attach more> > than one file, I zip 4 files together in
> the attachment.I have two DVEVM> > with me now and using the same kernel.
> Let's say board A and board B. For> > some reason today I can boot up board A
> without problem as you can see in> > Capture2.txt. The other capture files
> are for board B. Capture3.txt is> > with USB hub and USB drive attached and
> kernel panic. Capture4.txt is> > after I plug out the USB hub and it boots up
> ok.The other file> > 'demo_usb.config' is the kernel config file.The board B
> worked when I> > configured the kernel. I mainly use board B when doing it.
> So it booted up> > first on board B and then I burned it to the flash. But
> after left it> > there for some time. When I tried to boot it up, I got
> kernel panic.I have> > no idea why board A worked today. Thanks,Lewis> Date:
> Thu, 11 Oct 2007> > 03:31:59 -0700> Subject: Re: Does USB work on 2.6.10 on
> DVEVM board?>> > From: [EMAIL PROTECTED]> To: [EMAIL PROTECTED]> CC:> >
> davinci-linux-open-source@linux.davincidsp.com> > >> > Hi, Friends,> >> >> >
> I tried to config 2.6.10 to use USB port (like USB drive or USB hub) but>> >
> > always fails. It crashes the kernel whenever I boot the system.> >
> Sometimes> > if I boot the system first and then connect the USB drive, it> >
> got to know> > it and I could mount and use it. At this time I could reset> >
> to reboot the> > system and no crashing on bootup. I could also use the> >
> USB drive at this> > time. Then I burn the kernel to the board. But after> >
> leave it there for> > some time and power on for a cold start. It will> >
> crash the kernel again.> > Does anyone config the USB port and use it> >
> successfully? Can you please> > share some experience?> > if possible, try> >
> to send oops messages, it will be usefull to fix the issue> > > Ashok> > >> >
> > > > Thanks,> > Lewis> >> >> >
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