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Re: kern/53447: usb lock problem, mutex_enter
The following reply was made to PR kern/53447; it has been noted by GNATS.
From: Phil Nelson <phil%NetBSD.org@localhost>
Subject: Re: kern/53447: usb lock problem, mutex_enter
Date: Fri, 13 Jul 2018 06:18:48 -0700
On Friday 13 July 2018 05:10:01 Christos Zoulas wrote:
> =A0Take out the cold conditional from the predicate function; it should w=
> =A0as before then.
It didn't initially have the problem, so I typed a couple of characters and=
then backspaced to type the correct thing and got:
panic: LOCKDEBUG: Kernel lock error: _kernel_lock,220: spinout
cpu3: Begin traceback...
vpanic() at ...
snprintf() at ...
lockdebug_more() at ...
_kernel_lock() at ...+0x1de
usb_transfer_complete() at ...+0x161
xhci_poll() at ...+0x37
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