Re: [PATCH 0/2] ftrace: fixes for PPC

From: Chris Friesen
Date: Fri Oct 17 2008 - 01:37:41 EST

Josh Boyer wrote:

> Are these two merged yet? I just spent the better part of the morning
> trying to figure out why various Fedora kernels based on 2.6.27-rcX and
> 2.6.27 final hung on my G5 and finally got one booting with FTRACE
> disabled.

Until recently I could boot my G5 with FTRACE enabled, but it totally screwed up load balancing.

As of a couple days ago, -tip hung on boot due to the following genirq issue:

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 570d1ea..1c178ae 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -132,7 +132,7 @@ int set_irq_type(unsigned int irq, unsigned int type)
return 0;

spin_lock_irqsave(&desc->lock, flags);
- ret = __irq_set_trigger(desc, irq, flags);
+ ret = __irq_set_trigger(desc, irq, type);
spin_unlock_irqrestore(&desc->lock, flags);
return ret;


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