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From: Colin Percival <cperciva@FreeBSD.org>
Date: Tue, 26 Apr 2011 02:06:31 +0000 (UTC)
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Subject: cvs commit: src/sbin/newfs mkfs.c
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cperciva    2011-04-26 02:06:31 UTC

  FreeBSD src repository

  Modified files:
    sbin/newfs           mkfs.c 
  Log:
  SVN rev 221049 on 2011-04-26 02:06:31Z by cperciva
  
  Stop trying to zero UFS1 superblocks if we fall off the end of the disk.
  
  This avoids a potentially many-hours-long loop of failed writes if newfs
  finds a partially-overwritten superblock (or, for that matter, random
  garbage which happens to have superblock magic bytes); on one occasion I
  found newfs trying to zero 800 million superblocks on a 50 MB disk.
  
  Reviewed by:    mckusick
  MFC after:      1 week
  
  Revision  Changes    Path
  1.106     +4 -1      src/sbin/newfs/mkfs.c