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Re: kern/45137: Kernel assertion in userret.h

The following reply was made to PR kern/45137; it has been noted by GNATS.

From: David Holland <>
Subject: Re: kern/45137: Kernel assertion in userret.h
Date: Sun, 17 Jul 2011 03:32:35 +0000

 On Tue, Jul 12, 2011 at 08:00:01AM +0000, Hauke Fath wrote:
  > Starting timed.
  > panic: kernel diagnostic assertion "l->l_nopreempt == 0" failed: file 
"/public/netbsd-developer/sys/sys/userret.h", line 118
 Is this caused by timed? That is, is it one of the time-related
 syscalls (which are not exercised that much) that's leaking nopreempt?
 Either way if you can figure out which syscall it's in when it dies,
 that'll make it a lot easier to trace what broke.
 (I know figuring this out is a pain; I was doing it yesterday with
 something else in userret)
 David A. Holland

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