cvs commit: src/sys/netinet tcp_output.c

[Robert Watson]

rwatson     2004-10-09 16:48:51 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          tcp_output.c 
  Log:
  Acquire the send socket buffer lock around tcp_output() activities
  reaching into the socket buffer.  This prevents a number of potential
  races, including dereferencing of sb_mb while unlocked leading to
  a NULL pointer deref (how I found it).  Potentially this might also
  explain other "odd" TCP behavior on SMP boxes (although  haven't
  seen it reported).
  
  RELENG_5 candidate.
  
  Revision  Changes    Path
  1.103     +14 -2     src/sys/netinet/tcp_output.c