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From: Max Asbock <masbock@linux.vnet.ibm.com>
To: gong.chen@linux.intel.com, ying.huang@intel.com
Cc: linux-acpi@vger.kernel.org, masbock@linux.vnet.ibm.com
Subject: APEI: ERST table in ACPI NVS not supported
Date: Tue, 29 Jan 2013 10:08:11 -0800	[thread overview]
Message-ID: <5108100B.9040907@linux.vnet.ibm.com> (raw)

Hi,

we have systems that declare the memory range for ERST in ACPI NVS.
Because ACPI NVS is marked 'busy' by e820_reserve_resources() the call 
to request_mem_region(erst_erange.base, erst_erange.size, "APEI ERST") 
made from erst_init() fails and we get:
ERST: Can not request iomem region <0x        7e91f000-0x        
7e920c00> for ERST.

I did notice that quite some effort was made to add code to avoid 
resource conflicts between APEI and ACPI NVS. But ERST still goes 
straight to request_mem_region() which is bound to fail. I am assuming 
this should go through apei_resources_request() instead or I am missing 
something?

thanks,
Max


             reply	other threads:[~2013-01-29 18:08 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-29 18:08 Max Asbock [this message]
2013-02-04  9:20 ` APEI: ERST table in ACPI NVS not supported Chen Gong
2013-02-04 17:06   ` Max Asbock
2013-02-05  1:56     ` Chen Gong

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