[Bug 11658] shutdown on A/C removal - Samsung R510 Laptop

[bugzilla-daemon]

http://bugzilla.kernel.org/show_bug.cgi?id=11658


Zhang Rui <rui.zh...@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |REJECTED
         Resolution|                            |DOCUMENTED




--- Comment #35 from Zhang Rui <rui.zh...@intel.com>  2009-09-28 03:23:12 ---
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009e400 (usable)
 BIOS-e820: 000000000009e400 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000bd6a1000 (usable)
 BIOS-e820: 00000000bd6a1000 - 00000000bd6a7000 (reserved)
 BIOS-e820: 00000000bd6a7000 - 00000000bd7b4000 (usable)
 BIOS-e820: 00000000bd7b4000 - 00000000bd80f000 (reserved)
 BIOS-e820: 00000000bd80f000 - 00000000bd907000 (usable)
 BIOS-e820: 00000000bd907000 - 00000000bdb0f000 (reserved)
 BIOS-e820: 00000000bdb0f000 - 00000000bdb18000 (usable)
 BIOS-e820: 00000000bdb18000 - 00000000bdb1f000 (reserved)
 BIOS-e820: 00000000bdb1f000 - 00000000bdb64000 (usable)
 BIOS-e820: 00000000bdb64000 - 00000000bdb9f000 (ACPI NVS)
 BIOS-e820: 00000000bdb9f000 - 00000000bdc00000 (ACPI data)
 BIOS-e820: 0000000100000000 - 0000000140000000 (usable)

You have 4G physical memory on your laptop. but the BIOS e820 table exports 5G
avaiable memory.
this explains why mem=4G workarounds the problem for you.
So this is a BIOS bug, and this can only be fixed by BIOS upgrade.
Mike,
please verify if there is any BIOS upgrade for this laptop.
If not, I think you can raise this problem to samsung.

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