On Saturday 15 September 2012 04:59:29 Brandon Gooch wrote:
> I'm running 10-CURRENT amd64 on a Dell M6500.
> I ran into a strange issue when running `sysctl -a` in which my system
> would "freeze" -- the only interaction with the system which was
> registered was a press of the power button (which wouldn't actually
> initialize a shutdown). This is a big problem when
> /etc/rc.d/initrandom calls `sysctl -a` during system startup...
> I traced this behavior back to commit r240281 which added support for
> USB Dual Mode Drivers:
> http://svnweb.freebsd.org/base/head/sys/dev/usb/controller/usb_controller.c
> ?r1=240281&r2=240280&pathrev=240281
> At r240280, my system boots fine and I can run `sysctl -a` at will
> with no bad behavior.
> I haven't dug deeply into this issue, so this e-mail is more of a
> heads-up report in case anyone else runs into this issue. I'll add
> more debugging in my kernel config and capture the information from
> dmesg and others before and after the r240281 commit.
> Of course, any hints are appreciated as I delve into this.
> -Brandon

I will try to reproduce next week.

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