Date: Fri, 03 Aug 2007 15:49:52 +0800 From: LI Xin <delphij@delphij.net> To: Dmitry Morozovsky <marck@rinet.ru> Cc: src-committers@FreeBSD.ORG, d@delphij.net, cvs-src@FreeBSD.ORG, cvs-all@FreeBSD.ORG, MingyanGuo <guomingyan@gmail.com>, Xin LI <delphij@FreeBSD.ORG>, Howard Su <howard0su@gmail.com> Subject: Re: cvs commit: src/sys/fs/tmpfs tmpfs.h tmpfs_subr.c Message-ID: <46B2DE20.2090708@delphij.net> In-Reply-To: <20070803113300.W80820@woozle.rinet.ru> References: <200708030624.l736OV3b043646@repoman.freebsd.org> <46B2CB2C.7030504@delphij.net> <20070803113300.W80820@woozle.rinet.ru>
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Dmitry Morozovsky wrote:
> Dear Xin,
>=20
> On Fri, 3 Aug 2007, LI Xin wrote:
>=20
> LX> > Log:
> LX> > MFp4 - Refine locking to eliminate some potential race/panics:
> LX> > =20
> 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> > =20
> LX> > Suggested by: kib
> LX> > Submitted by: delphij
> LX> > Reviewed by: Howard Su
> LX> > Approved by: re (tmpfs blanket)
> LX>=20
> LX> Should have mentioned that this is done in response of pho@'s stres=
s
> LX> test. Thanks goes to him for all these hard work!
>=20
> Should it fix panics I reported to you during last couple of days?
I just noticed your e-mail. This sounds like a different problem. I'm
working on another problem that kib@ has mentioned to me, which might be
related to this.
Cheers,
--=20
Xin LI <delphij@delphij.net> http://www.delphij.net/
FreeBSD - The Power to Serve!
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