Module Name: src
Committed By: dyoung
Date: Fri Apr 30 21:05:27 UTC 2010
Modified Files:
src/sys/arch/x86/pci: pci_machdep.c
Log Message:
Add an exponential back-off to the loop that tries to lock the
PCI configuration-access registers, to avoid excessive cacheline
ping-ponging. Thanks to rmind@ for the tip.
To generate a diff of this commit:
cvs rdiff -u -r1.43 -r1.44 src/sys/arch/x86/pci/pci_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
