Re: USB3 express card panics on 9.0-RC1

On Wednesday 02 November 2011 16:22:20 Jan Henrik Sylvester wrote:
> I have bought a "Super-speed Express Card To USB 3.0 1-Port" to connect
> an USB3 hard disk to my Thinkpad T510, which only has USB2.
> 
> Trying to hot plug the express card did nothing, but I guess that is
> expected. Hence, I booted with the express card already inserted, only
> to receive a panic upon xhci0 initialization, see below.
> 
> This is on FreeBSD 9.0-RC1/amd64 with a generic kernel installed from
> the official DVD.
> 
> I guess I could test 226803 mentioned in
> http://lists.freebsd.org/pipermail/freebsd-usb/2011-October/010746.html
> , which happened after RC1, but from the commit message, it only fixes
> suspend and resume.
> 
> As I do not have much time now, should I test 226803, find a Linux CD to
> actually identify the device, or anything else?
> 
> Cheers,
> Jan Henrik
> 
> 
> usbus0: 480 Mbps High Speed USB v2.0
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address   = 0x18
> fault code              = supervisor write data, page not present
> instruction ponter      = 0x20:0xffffffff806e80aa
> stack pointer           = 0x28:0xffffff810ee50bc0
> frame pointer           = 0x28:0xffffff810ee50bf0
> code segment            = base 0x0, limit 0xfffff, type 0x16
>                          = DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = 15 (xhci0)
> trap number             = 12
> panic: page fault
> cpuid = 0
> Uptime = 1s
> Automatic reboot in 15 seconds - press a key on the console to abort

Hi,

This looks like a NULL-pointer issue inside "xhci_configure_msg()" which 
probably should be easy to fix.

Could you compile and boot a kernel with kernel debugging enable so that you 
get a backgtrace?

--HPS