Date: Tue, 12 Aug 2008 21:27:48 +0000 (UTC) From: "Christian S.J. Peron" <csjp@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_exec.c Message-ID: <200808122127.m7CLRwGN092038@repoman.freebsd.org>
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csjp 2008-08-12 21:27:48 UTC
FreeBSD src repository
Modified files:
sys/kern kern_exec.c
Log:
SVN rev 181647 on 2008-08-12 21:27:48Z by csjp
Reduce the scope of the vnode lock such that it does not cover
the various copyouts associated with initializing the process's
argv/env data in userspace. It is possible that these copyout
operations can fault under memory pressure, possibly resulting
in dead locks. This is believed to be safe since none of the
copyout_strings() operations need to interact with the vnode here.
Submitted by: Zhouyi Zhou
PR: kern/111260
Discussed with: kib
MFC after: 3 weeks
Revision Changes Path
1.321 +5 -1 src/sys/kern/kern_exec.c
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