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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Fri, 6 May 2011 23:49:10 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/xl if_xl.c
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yongari     2011-05-06 23:49:10 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/xl           if_xl.c 
  Log:
  SVN rev 221565 on 2011-05-06 23:49:10Z by yongari
  
  Reuse the TX descriptor(DPD) if xl_encap() failed instead of just
  picking the next available one. This may explain why xl(4) sees TX
  underrun error with no queued frame. I hope this addresses a long
  standing xl(4) watchdog timeout issue as well.
  
  Obtained from:  OpenBSD
  
  Revision  Changes    Path
  1.26      +8 -2      src/sys/dev/xl/if_xl.c