On 05/20/10 16:07, Nathan Whitehorn wrote:
Author: nwhitehorn
Date: Thu May 20 21:07:58 2010
New Revision: 208364
URL: http://svn.freebsd.org/changeset/base/208364
Log:
Fix a long-standing bug in the PowerPC OFW call function on SMP machines
where running ofwdump could cause hangs by forcing all secondary CPUs
into a busy wait with interrupts off during the call.
In retrospect, this was poorly phrased. A non-ambiguous version:
By forcing all secondary CPUs into a busy wait with interrupts off
during Open Firmware calls,
fix a long-standing bug in the PowerPC OFW call function on SMP machines
where running ofwdump could cause the machine to hang.
-Nathan
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