Re: bin/44958: dig(9) busy-loops

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR bin/44958; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: bin/44958: dig(9) busy-loops
Date: Sat, 14 May 2011 06:42:37 +0000

 On Thu, May 12, 2011 at 08:00:01PM +0000, Hauke Fath wrote:
  >     On a -current NetBSD/sparc mp installation, dig(8) busy-loops
  >     at 100% cpu, and has to be 'kill -9'ed. This happens
  >     frequently when dig is called from an ifwatchd(8) script, and
  >     less so when called interactively.
  > 
  >     I've categorized this 'bin', although it might actually be
  >     sparc-mp related.
 
 I think it's pthreads-related; dig and the other pieces of bind are
 multithreaded for some reason and I vaguely recall that there is or
 recently has been a known issue with sparc and threads.
 
 The same thing was happening on amd64 at one point last year but it's
 been fixed since.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost