Date: Wed, 9 Nov 2011 09:39:13 -0500 From: John Baldwin <jhb@freebsd.org> To: Vincent Hoffman <vince@unsane.co.uk> Cc: Jan Mikkelsen <janm@transactionware.com>, freebsd-stable@freebsd.org, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: mfi timeouts Message-ID: <201111090939.14177.jhb@freebsd.org> In-Reply-To: <4EB9BD9B.8080604@unsane.co.uk> References: <4EA9E0C3.5080306@unsane.co.uk> <4EB9AC0F.2040209@unsane.co.uk> <4EB9BD9B.8080604@unsane.co.uk>
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On Tuesday, November 08, 2011 6:39:07 pm Vincent Hoffman wrote: > On 08/11/2011 22:24, Vincent Hoffman wrote: > > On 08/11/2011 19:50, John Baldwin wrote: > >> On Wednesday, November 02, 2011 5:47:38 pm Vincent Hoffman wrote: > >>> On 28/10/2011 04:14, Jan Mikkelsen wrote: > >>>> Hi, > >>>> > >>>> There is a patch linked to from this PR, which seems very similar: > >>>> > >>>> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/140416 > >>>> > >>>> http://lists.freebsd.org/pipermail/freebsd-scsi/2011-March/004839.html > >>>> > >>>> The problem is also consistent with running mfiutil clearing the problem. > >>>> > >>>> I'm about to deploy mfi controllers in a similar configuration, so I'd be > >> very curious about whether the patch fixes the problem for you. > >>> The patch you linked to seems to have removed the stalls, although I > >>> have only had it running for a day. I'll post if it stalls again though. > >>> > >>> I did manage to scrounge the use of a Dell r410 with a > >>> LSI Logic / Symbios Logic MegaRAID SAS 2108 [Liberator] (rev 05) > >>> Badged as Dell PERC H700 Adapter > >>> > >>> to test out the patch I originally found but had the same issue as this post > >>> > >>> http://lists.freebsd.org/pipermail/freebsd-stable/2011-September/063821.html > >>> > >>> > >>> I couldnt get the dell to stall in the first place either though so it > >>> could be a specific firmware version that the issue. > >>> > >>> Anyway thanks for the pointers. > >> Hmm, did you try the patch I had posted from that earlier thread? It had > >> two changes in it, one was similar to the patch in the PR, the second added > >> MSI-X support. I've since tweaked it to make the MSI-X support off by > >> default but possible to enable via loader.conf. Would you be willing to > >> try the updated patch at www.freebsd.org/~jhb/patches/mfi.patch? > > Hi, > > yes I tried the patch you posted originally, unfortunately the dell > > never finished booting either. The Supermicro is now in production but > > I'll take the dell up to 9-STABLE and try your updated patch. > > > The patch didnt apply quite cleanly for 9-STABLE, 1 reject as it had > already been applied. Odd, it's against stock head, so I don't know why it would have failed to apply. > I have rebooted the dell and it seems happy with the new patch (msi > disabled.) Okay, good. I'll commit the non-MSI bits at least and get them merged into 9.0 if possible. > Booting with > hw.mfi.msix=1 in /boot/loader.conf causes the timeouts again and stops > the boot from completing. Ok. Can you try changing it to use MSI instead of MSI-X? Just edit the mfi_pci.c call and replace 'pci_alloc_msix' with 'pci_alloc_msi'. -- John Baldwin
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