Date: Fri, 3 Aug 2007 11:33:41 +0400 (MSD) From: Dmitry Morozovsky <marck@rinet.ru> To: d@delphij.net Cc: cvs-src@freebsd.org, src-committers@freebsd.org, Xin LI <delphij@freebsd.org>, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/fs/tmpfs tmpfs.h tmpfs_subr.c Message-ID: <20070803113300.W80820@woozle.rinet.ru> In-Reply-To: <46B2CB2C.7030504@delphij.net> References: <200708030624.l736OV3b043646@repoman.freebsd.org> <46B2CB2C.7030504@delphij.net>
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Dear Xin,
On Fri, 3 Aug 2007, LI Xin wrote:
LX> > Log:
LX> > MFp4 - Refine locking to eliminate some potential race/panics:
LX> >
LX> > - Copy before testing a pointer. This closes a race window.
LX> > - Use msleep with the node interlock instead of tsleep.
LX> > - Do proper locking around access to tn_vpstate.
LX> > - Assert vnode VOP lock for dir_{atta,de}tach to capture
LX> > inconsistent locking.
LX> >
LX> > Suggested by: kib
LX> > Submitted by: delphij
LX> > Reviewed by: Howard Su
LX> > Approved by: re (tmpfs blanket)
LX>
LX> Should have mentioned that this is done in response of pho@'s stress
LX> test. Thanks goes to him for all these hard work!
Should it fix panics I reported to you during last couple of days?
Sincerely,
D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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