On 06/27/2012 01:49 PM, Marek Vasut wrote: > Dear Richard Zhao, > >> On Mon, Jun 25, 2012 at 12:17:13PM +0200, Marc Kleine-Budde wrote: >>> On 06/25/2012 12:03 PM, Richard Zhao wrote: >>>> Could you use my USB test branch? >>> >>> Same result: >>> >>> ci_hdrc ci_hdrc.0: remove, state 1 >>> usb usb1: USB disconnect, device number 1 >>> ci_hdrc ci_hdrc.0: USB bus 1 deregistered >>> Unable to handle kernel NULL pointer dereference at virtual address >>> 0000006c pgd = c6ba4000 >>> [0000006c] *pgd=46a68831, *pte=00000000, *ppte=00000000 >>> Internal error: Oops: 17 [#1] PREEMPT ARM >>> Modules linked in: ci13xxx_imx(-) ci_hdrc imx_usbmisc >>> CPU: 0 Not tainted (3.5.0-rc4-00058-g01710ef #85) > > Dumb question -- you use the same base revision of kernel, right? Yes, I used v3.5-rc4 as baseline, add some mx28 specific patches (nand, etc...), then I merged in Richard's use tree. In the above oops, as the asked, the USB test branch. In original oops I used https://github.com/riczhao/kernel-imx/commits/topics/usb-driver Maybe it's some other part of the system that confuses the ida_* stuff. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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