Date: Thu, 13 Nov 2014 10:15:15 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: freebsd-current@freebsd.org Subject: Re: USB locks up system -- WAS Re: shutdown or acpi problem Message-ID: <20141113181515.GA19117@troutmask.apl.washington.edu> In-Reply-To: <20141113180332.GA18990@troutmask.apl.washington.edu> References: <20141112224212.GA14013@troutmask.apl.washington.edu> <20141113172533.GA18690@troutmask.apl.washington.edu> <20141113180332.GA18990@troutmask.apl.washington.edu>
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On Thu, Nov 13, 2014 at 10:03:32AM -0800, Steve Kargl wrote: > On Thu, Nov 13, 2014 at 09:25:33AM -0800, Steve Kargl wrote: > > On Wed, Nov 12, 2014 at 02:42:13PM -0800, Steve Kargl wrote: > > > I have a kernel/world from r274273 sources, which is exhibiting a new > > > issue on my old laptop. Neither 'shutdown -p now' nor 'shutdown -r now' > > > work. I get to the end of shutdown and see for example > > > > > > All buffers synced > > > Uptime: 4h23m15s > > > > > > and then the laptop just sits there. It does not power off with > > > the -p option nor does it reboot with the -r. Has anyone else > > > seen this behavior? > > > > > > > The problem appears to be related to a recent change in the > > USB stack. If I have the following drive plugged into a > > usb port, the above behavior is observed on shutdown. > > Adding hw.usb.no_shutdown_wait: 1 to /boot/loader.conf appears to work around the 'shutdown -p now' and 'shutdown -r now' issue. Unfortunately, the bricking of the laptop is not affected by this sysctl. Once a device is plugged into a usb, it must remain plugged in. -- Steve
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