Date: Sat, 26 Nov 2005 09:26:37 -0800 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: Hidetoshi Shimokawa <simokawa@FreeBSD.org> Cc: freebsd-firewire@FreeBSD.org Subject: Re: kern/83999: [firewire] [patch] panic in fw_bus_explore due to NULL reference Message-ID: <20051126172637.GG885@funkthat.com> In-Reply-To: <8764qf3dib.wl@tora.nunu.org> References: <200511251431.jAPEV0Hb081152@freefall.freebsd.org> <2b22951e0511252332q1afc575x459a0c2400ccf013@mail.gmail.com> <8764qf3dib.wl@tora.nunu.org>
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Hidetoshi Shimokawa wrote this message on Sat, Nov 26, 2005 at 19:33 +0900: > I'm sorry that I was late to apply the patch. > > Concerning MPSAFE, is the CAM subsystem already MPSAFE? > (I'm not following recent FreeBSD development.) > I think that it's not worth to make effort for MPSAFE if CAM is > not MPSAFE. The CAM core is not MPSAFE, but it is safe enough to call xpt_done w/o GIANT held though... which is the biggest barrier to making drivers MPSAFE... If you have specific questions about CAM's interaction with locking, drop a message to Scott Long... > At Fri, 25 Nov 2005 23:32:19 -0800, > Cai, Quanqing wrote: > > > > Our FreeBSD Firewire expert come out to fix this:) Thank you very much. > > > > I have a question, do you have any plan to rewrite firewire subsystem > > to make it fully MPSAFE? > > > > I think firewire is a very important feature for FreeBSD as a server > > OS in enterprise environment, as I know many admins use firewire HDs > > as backup method instead of Tape. > > > > BR > > Cai, Quanqing > > > > > > On 11/25/05, Hidetoshi Shimokawa <simokawa@freebsd.org> wrote: > > > Synopsis: [firewire] [patch] panic in fw_bus_explore due to NULL reference > > > > > > State-Changed-From-To: open->feedback > > > State-Changed-By: simokawa > > > State-Changed-When: Fri Nov 25 14:30:03 GMT 2005 > > > State-Changed-Why: > > > Committed, thanks. > > > > > > http://www.freebsd.org/cgi/query-pr.cgi?pr=83999 -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
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