Re: Sym2 driver timeouts on powerstacks

[Matthew Wilcox <matthew@wil.cx>]

On Tue, Jan 04, 2005 at 01:54:49PM +0100, Marc Dietrich wrote:
> This machine runs fine on 2.4 series kernels, but fails on 2.6 due to timeouts 
> in the scsi driver. The 2.4 series kernels used the (I guess now obsoleted) 
> ncr53c8xx.c/sym53c8xx.c driver.
> There were some PReP specific "fixed" in the old driver, which not have been 
> ported to the sym2 driver. I tried to backport the "latency" and the 
> "pci_command_master/parity" fixes (see the 2.4 log), but even with this I had 
> no success.

I'm not surprised, those patches ought to have no effect.
PCI_COMMAND_MASTER is set when the driver calls pci_set_master().
PCI_COMMAND_PARITY should be set by the platform code, but afaict is
currently not set on ppc.

> I attached the full debug output of both 2.4 and 2.6 kernels.

Umm.  Not terribly helpful.  Could you delete all the spurious blank lines
next time, and it'd be much more helpful if you could boot with the option
"sym53c8xx.debug=0x1fff"

-- 
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