Add a note about the MSI support with details on how to turn MSI off if

things break.
This commit is contained in:
jhb 2006-11-15 20:02:20 +00:00
parent 7bbb24af70
commit c69b9a59a8

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@ -20,6 +20,14 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 7.x IS SLOW:
in userland, and various verbose features in the kernel. Many
developers choose to disable these features on build machines
to maximize performance.
20061113:
Support for PCI Message Signalled Interrupts on i386 and amd64
has been added to the kernel and various drivers will soon be
updated to use MSI when it is available. If there are any problems,
MSI can be disabled completely by setting the 'hw.pci.enable_msi'
and 'hw.pci.enable_msix' tunables to 0 in the loader.
20061110:
The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
The lockmgr object layout has been changed as a result of having