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From: Bruce M Simpson <bms@FreeBSD.org>
Date: Sun, 4 Jul 2004 18:32:54 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
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Subject: cvs commit: src/sys/net if_vlan.c
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bms         2004-07-04 18:32:54 UTC

  FreeBSD src repository

  Modified files:
    sys/net              if_vlan.c 
  Log:
  Workaround a locking problem in vlan(4). vlan_setmulti() may be called
  with sleepable locks held from further up in the network stack, and
  attempts to allocate memory to hold multicast group membership information
  with M_WAITOK.
  
  This panic was triggered specifically when an exiting routing daemon
  process closes its raw sockets after joining multicast groups on them.
  
  While we're here, comment some possible locking badness.
  
  PR:     kern/48560
  
  Revision  Changes    Path
  1.69      +11 -2     src/sys/net/if_vlan.c