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

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things break.
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John Baldwin 2006-11-15 20:02:20 +00:00
parent 71f4007710
commit 1d7e99caf1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=164304
1 changed files with 8 additions and 0 deletions
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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