From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Date: Mon, 21 Jul 2003 14:27:52 +0000 Subject: Re: elilo option to disable perfmon Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org "Zhu, Yi" wrote: > > Hi, > > Is there any option to disable perfmon from elilo? I ask this question because when I > boot my tiger4 at loading ramdisk, it begins to infinite loop with message, > > perfmon: Spurious PMU overflow interrupt on CPU1: pmc0=0x0 > owner00000000000000 > perfmon: Spurious PMU overflow interrupt on CPU2: pmc0=0x0 > owner00000000000000 I remember seeing this kind of error when playing with using PAL_HALT_LIGHT in the cpu_idle loop. Newer PAL solved the problem. If you have CONFIG_IA64_PAL_IDLE turned on in your config file, you either need to upgrade to new firmware (not sure what rev to recommend on a tiger box) or disable the config option and rebuild a kernel. Try for PAL 7.40 or better. Thanks, Alex -- Alex Williamson HP Linux & Open Source Lab