Author: jhb
Date: Mon Jun 24 18:30:44 2013
New Revision: 252166
URL: http://svnweb.freebsd.org/changeset/base/252166
Log:
Disable hw.pci.realloc_bars by default. It wasn't needed for the original
tester of this fix, and realloc_bars breaks some other cases as a small
BAR that is reallocated can end up grabbing space needed by a much larger
BAR in the existing window of a PCI-PCI bridge.
MFC after: 3 days
Modified:
head/sys/dev/pci/pci.c
Modified: head/sys/dev/pci/pci.c
==============================================================================
--- head/sys/dev/pci/pci.c Mon Jun 24 18:27:44 2013 (r252165)
+++ head/sys/dev/pci/pci.c Mon Jun 24 18:30:44 2013 (r252166)
@@ -280,7 +280,7 @@ SYSCTL_INT(_hw_pci, OID_AUTO, enable_io_
enable these bits correctly. We'd like to do this all the time, but there\n\
are some peripherals that this causes problems with.");
-static int pci_do_realloc_bars = 1;
+static int pci_do_realloc_bars = 0;
TUNABLE_INT("hw.pci.realloc_bars", &pci_do_realloc_bars);
SYSCTL_INT(_hw_pci, OID_AUTO, realloc_bars, CTLFLAG_RW,
&pci_do_realloc_bars, 0,
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