From: John David Anglin <dave.anglin@bell.net>
To: John David Anglin <dave.anglin@bell.net>
Cc: Jeroen Roovers <jer@gentoo.org>,
linux-parisc@vger.kernel.org, Helge Deller <deller@gmx.de>
Subject: Re: PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at lib/timerqueue.c:74
Date: Wed, 20 Mar 2013 22:02:55 -0400 [thread overview]
Message-ID: <BLU0-SMTP790A969254E562667034B397EB0@phx.gbl> (raw)
In-Reply-To: <514A183A.7090809@bell.net>
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On 20-Mar-13, at 4:12 PM, John David Anglin wrote:
> On 3/20/2013 1:27 PM, Jeroen Roovers wrote:
>> +CONFIG_PREEMPT_NONE=y
> Given that CONFIG_PREEMPT is broken, we must be missing at least one
> preempt_disable()/preempt_enable() pair.
You might try the attached change. My rp3440 booted with
CONFIG_PREEMPT=y
and CONFIG_PREEMPT_NONE=y with it. The fix is just a guess.
Dave
--
John David Anglin dave.anglin@bell.net
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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 4b12890..1871724 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -372,10 +372,12 @@ void flush_kernel_dcache_page_addr(void *addr)
{
unsigned long flags;
+ preempt_disable();
flush_kernel_dcache_page_asm(addr);
purge_tlb_start(flags);
pdtlb_kernel(addr);
purge_tlb_end(flags);
+ preempt_enable();
}
EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
next prev parent reply other threads:[~2013-03-21 2:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-15 14:22 PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at lib/timerqueue.c:74 Jeroen Roovers
2013-03-16 22:34 ` John David Anglin
2013-03-18 12:58 ` Jeroen Roovers
2013-03-19 22:38 ` Helge Deller
2013-03-19 22:49 ` John David Anglin
2013-03-20 17:27 ` Jeroen Roovers
2013-03-20 19:34 ` Jeroen Roovers
2013-03-20 20:12 ` John David Anglin
2013-03-21 2:02 ` John David Anglin [this message]
2013-03-21 14:57 ` Jeroen Roovers
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