cvs commit: src/sys/sys socketvar.h
rwatson at FreeBSD.org
Tue Jul 3 10:14:14 UTC 2007
rwatson 2007-07-03 10:14:13 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
Fix a bug in sblock() that has existed since revision 1.1 from BSD:
correctly return an error if M_NOWAIT is passed to sblock() and the
operation might block. This remarkably subtle macro bug appears to
be responsible for quite a few undiagnosed socket buffer corruption
and mbuf-related kernel panics.
This bug has already been fixed in 7-CURRENT as part of the move to
using sx(9) locks to serialize simultaneous socket I/O, but is an
MFC candidate for all earlier FreeBSD -STABLE branches.
MFC after: 2 weeks
Found by: Isilon
Submitted by: jeff
Tested by: jhb, Yahoo!
Revision Changes Path
220.127.116.11 +1 -1 src/sys/sys/socketvar.h
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