Patch applied. Thanks for tracking this one down. On Thu, Jul 17, 2008 at 10:38 PM, stephane eranian <[EMAIL PROTECTED]> wrote: > Corey, > > Will do as you suggested. I think it is already out in the minimal perfmon. > > > On Thu, Jul 17, 2008 at 10:33 PM, Corey J Ashford <[EMAIL PROTECTED]> wrote: >> Hi Stephane, >> >> On POWER, the interrupting PMDs start at 1. This was how I noticed it was >> off because a loop was looking to see if register 0 has an interrupt >> pending. >> >> On Cell, the first interrupting PMD is register 0. >> >> You could get rid of it, but since the fix is pretty simple, maybe we should >> live with it for now in the full perfmon2, but get rid of it for the minimal >> kernel. >> >> - Corey >> >> Corey Ashford >> Software Engineer >> IBM Linux Technology Center, Linux Toolchain >> Beaverton, OR >> 503-578-3507 >> [EMAIL PROTECTED] >> >> >> "stephane eranian" <[EMAIL PROTECTED]> wrote on 07/17/2008 12:56:16 PM: >> >>> Corey, >>> >>> >>> There was indeed an initialization problem. Everybody got lucky. If >>> the value is zero, then one some >>> PMUs you may end up iterating some more in the interrupt handler. >>> Given that for most PMU models, >>> PMD registers start at index zero, I am thinking we should get rid of >>> this field. It is only on Itanium that >>> useful data registers start at 4. >>> >>> What about Power and Cell? >>> >>> >>> On Thu, Jul 17, 2008 at 9:12 PM, Corey Ashford <[EMAIL PROTECTED]> >>> wrote: >>> > Hello, >>> > >>> > In debugging a multiplexing problem on perfmon2 for POWER, I discovered >>> > that >>> > first_intr_pmd in the pfm_regdesc structure is not initialized anywhere >>> > (that I can find). This patch adds the code to initialize >>> > first_intr_pmd to >>> > pfm_pmu_regdesc_init(). >>> > >>> > - Corey >>> > >>> > >>> > -- >>> > Corey Ashford >>> > Software Engineer >>> > IBM Linux Technology Center, Linux Toolchain >>> > Beaverton, OR >>> > 503-578-3507 >>> > [EMAIL PROTECTED] >>> > >> >
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