Any successful installs on a Broadcom HT1000 chipset?

John Baldwin jhb at
Wed Nov 28 05:43:20 PST 2007

On Wednesday 28 November 2007 02:45:16 am Søren Schmidt wrote:
> John Baldwin wrote:
> >
> > FYI, I've seen weird in-memory corruption with machines with the HT1000_S1 
> > atapci device.  In all the cases I've seen so far, a single page is corrupted 
> > with garbage and the page happens to be used by UMA to hold credentials 
> > including proc0's credentials.  I've seen this corruption (trashed creds for 
> > proc0 and other creds in that page) on many of the same boxes (Dell 1435's 
> > IIRC) running on 6.2.  I've tried switching the HT1000_S1 to use SWKSMIO 
> > rather SWKS100 as I mentioned to you in an earlier e-mail (the Linux driver 
> > uses equivalent of SWKSMIO FWIW) but don't have any conclusive tests on that.
> >
> >   
> OK, seems the chipset has some real problems, I have digged through all 
> the (very little) docs and info I got from serverworks back when, and 
> the only thing I can find is that the chips doesn't support MSI in any 
> shape or fashion or it will do really strange things.
> Now on my system it seems to be disabled but I'm not sure yet how its 
> determined to be that way. Would be worth for you guys to check what the 
> sysctl's "hw.pci.enable_msi" and "hw.pci.enable_msix" are set to.
> I havn't looked into this yet, but I'm pretty sure we added MSI support 
> in the 6.2 -> 7.0 timeframe, so that might have uncovered this chipset 
> bug, and possibly the Promise data corruption one as well.

The ata driver doesn't use MSI (no calls to pci_msi_count or pci_msi_alloc,
etc.), so this isn't an issue.  Also, the boxes I've seen the corruption on
already have MSI disabled (it's still disabled by default in 6.x).

John Baldwin

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