CVS commit: src/sys/kern

[Manuel Bouyer <bouyer%netbsd.org@localhost>]

Module Name:    src
Committed By:   bouyer
Date:           Wed Aug 26 22:34:47 UTC 2009

Modified Files:
        src/sys/kern: uipc_usrreq.c

Log Message:
In uipc_usrreq(PRU_ACCEPT), grab the unp_streamlock before unp_setpeerlocks().
This fixes a race where, for a short period of time, so->so_lock and
so2->so_lock are not sync. This makes solocked2() and solocked()
unreliable and cause DIAGNOSTIC kernel panics. This also fixes a possible
panic in unp_setaddr() which expects the socket locked.
Should fix kern/38968, fix proposed in
http://mail-index.netbsd.org/tech-kern/2009/08/17/msg005863.html


To generate a diff of this commit:
cvs rdiff -u -r1.126 -r1.127 src/sys/kern/uipc_usrreq.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.