From: Dennis Schridde <devurandom@gmx.net>
To: arnd@arndb.de, linuxppc-dev@lists.ozlabs.org,
cbe-oss-dev@lists.ozlabs.org
Subject: Re: PROBLEM: Only 2 of 4 cores used on IBM Cell blades and no threads shown in spufs
Date: Tue, 23 Apr 2013 14:01:16 +0200 [thread overview]
Message-ID: <20130423140116.0a40c2c6@samson> (raw)
In-Reply-To: <1470334.YUWOQ37ijW@ernie>
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Am Mon, 22 Apr 2013 18:44:13 +0200
schrieb Dennis Schridde <devurandom@gmx.net>:
> [4.] Kernel information
>
> [4.1.] Kernel version (from /proc/version):
> I am using the Linux 3.8.8 kernel (vanilla-sources-3.8.8 on
> Gentoo/Linux): # cat /proc/version
> Linux version 3.8.8 (root@blade00) (gcc version 4.7.2 (Gentoo
> 4.7.2-r1 p1.5, pie-0.5.5) ) #2 SMP Mon Apr 22 18:21:20 CEST 2013
Actually this is only partially correct.
I applied following patch by Grant Likely
<grant.likely@secretlab.ca> to fix some IRQ mapping problems:
diff --git a/arch/powerpc/platforms/cell/pmu.c
b/arch/powerpc/platforms/cell/pmu.c index 59c1a16..348a27b 100644
--- a/arch/powerpc/platforms/cell/pmu.c
+++ b/arch/powerpc/platforms/cell/pmu.c
@@ -382,7 +382,7 @@ static int __init cbe_init_pm_irq(void)
unsigned int irq;
int rc, node;
- for_each_node(node) {
+ for_each_online_node(node) {
irq = irq_create_mapping(NULL, IIC_IRQ_IOEX_PMI |
(node <<
IIC_IRQ_NODE_SHIFT)); if (irq == NO_IRQ) {
And now I also applied the patch by Michael Ellerman
<michael@ellerman.id.au> that supposedly fixes the
all-processes-running-on-CPU0 issue - I will report back with results
later.
--Dennis
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next prev parent reply other threads:[~2013-04-23 12:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-22 16:44 PROBLEM: Only 2 of 4 cores used on IBM Cell blades and no threads shown in spufs Dennis Schridde
2013-04-23 9:12 ` Michael Ellerman
2013-04-23 11:51 ` Dennis Schridde
2013-04-23 13:16 ` Dennis Schridde
2013-04-23 13:19 ` Michael Ellerman
2013-05-17 15:46 ` Dennis Schridde
2013-05-22 3:37 ` Michael Ellerman
2013-04-23 12:01 ` Dennis Schridde [this message]
2013-04-23 12:16 ` Michael Ellerman
2013-04-23 12:41 ` Dennis Schridde
2013-04-23 12:53 ` Michael Ellerman
2013-04-23 13:24 ` Michael Ellerman
2013-04-23 18:13 ` Dennis Schridde
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