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From: David Miller <davem@davemloft.net>
To: sparclinux@vger.kernel.org
Subject: Re: Generic idle causes boot hang on T1000
Date: Mon, 24 Mar 2014 18:36:54 +0000	[thread overview]
Message-ID: <20140324.143654.2242726338958297413.davem@davemloft.net> (raw)
In-Reply-To: <alpine.LSU.2.11.1403232347380.23553@nerf08.vanv.qr>

From: Jan Engelhardt <jengelh@inai.de>
Date: Mon, 24 Mar 2014 19:19:44 +0100 (CET)

> 
> On Monday 2014-03-24 17:53, David Miller wrote:
>>diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
>>index 32a280e..d7b4967 100644
>>--- a/arch/sparc/kernel/process_64.c
>>+++ b/arch/sparc/kernel/process_64.c
>>@@ -58,9 +58,12 @@ void arch_cpu_idle(void)
>> {
>> 	if (tlb_type != hypervisor) {
>> 		touch_nmi_watchdog();
>>+		local_irq_enable();
>> 	} else {
>> 		unsigned long pstate;
>> 
>>+		local_irq_enable();
>>+
>>                 /* The sun4v sleeping code requires that we have PSTATE.IE cleared over
>>                  * the cpu sleep hypervisor call.
>>                  */
>>@@ -82,7 +85,6 @@ void arch_cpu_idle(void)
>> 			: "=&r" (pstate)
>> 			: "i" (PSTATE_IE));
>> 	}
>>-	local_irq_enable();
>> }
>> 
>> #ifdef CONFIG_HOTPLUG_CPU
> 
> With this patch, the boot succeeds.

Thanks for testing, I'll get this merged upstream and to -stable.

      parent reply	other threads:[~2014-03-24 18:36 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-23 22:47 Generic idle causes boot hang on T1000 Jan Engelhardt
2014-03-24  0:38 ` David Miller
2014-03-24 10:33 ` Jan Engelhardt
2014-03-24 16:53 ` David Miller
2014-03-24 18:19 ` Jan Engelhardt
2014-03-24 18:36 ` David Miller [this message]

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