lkml.org 
[lkml]   [2012]   [Apr]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH resend v3] x86: memtest: WARN if bad RAM found
From
On Mon, Apr 23, 2012 at 1:28 PM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Yinghai Lu wrote:
>> On Mon, Apr 23, 2012 at 11:26 AM, Jonathan Nieder <jrnieder@gmail.com> wrote:
>
>>> --- a/arch/x86/mm/memtest.c
>>> +++ b/arch/x86/mm/memtest.c
>>> @@ -30,6 +30,8 @@ static u64 patterns[] __initdata = {
>>>
>>>  static void __init reserve_bad_mem(u64 pattern, u64 start_bad, u64 end_bad)
>>>  {
>>> +       WARN_ONCE(1, "Bad RAM detected. Use memtest86+ to perform a thorough test\n"
>>> +                 "and the memmap= parameter to reserve the bad areas.");
>>
>> You must be kidding : calling memtest86+ "thorough test".
>
> How about "more thorough test"?  Or do you have a better
> recommendation for users?

The reason for adding early_memtest is for debug purpose.
Sometimes BIOS mess up setting, on some booting memory is ok, but
other booting the memory is not initialized properly.

in that case: preboot memtest tools is not going to help.

also preboot memtest tools and early_memtest is not stressed enough.
--- only one process is running.
Need to run memtester multiple instances to test your memory and systems.

Yinghai
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2012-04-24 00:15    [W:0.058 / U:0.212 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site