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Re: kern/51524: USB vs. serial problems
The following reply was made to PR kern/51524; it has been noted by GNATS.
From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>
Subject: Re: kern/51524: USB vs. serial problems
Date: Sun, 2 Oct 2016 17:10:39 -0500 (CDT)
On Sun, 2 Oct 2016 20:45:00 +0000 (UTC), Thomas Klausner <wiz%NetBSD.org@localhost>
> 4 hours later I saw the following in the kernel log:
>ehci_sync_hc: cv_timedwait() = 35
Curious. This exact same error has been observed with USB network
devices, specifically, urtw(4) on evbmips-mips64el (Lemote Yeeloong,
LOONGSON kernel). See the partial thread "Shutdown hangs if umass(4)
media still mounted" here:
The same message originally appeared with umass(4) media mounted at
shutdown, but that has not been seen for a while. If umass(4) media
are in use when a urtw(4) interface is associated with an access point,
the message will appear and the system will be hung.
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