Mailing List Archive: Linux: Kernel

Intel DP55KG BIOS Bug (reboot hangs, is Intel aware of the problem?)

Index | Next | Previous | View Threaded

jpiszcz at lucidpixels

Oct 14, 2009, 3:02 PM

Post #1 of 3 (817 views)
Permalink

Intel DP55KG BIOS Bug (reboot hangs, is Intel aware of the problem?)

Hi,

I have tried the following kernel parameters with '*' and reboot=b,
reboot=h and reboot=s.

-----------------------------------------------------------------------

Rebooting

reboot=b[ios] | t[riple] | k[bd] | a[cpi] | e[fi] [, [w]arm | [c]old]
* bios Use the CPU reboot vector for warm reset
warm Don't set the cold reboot flag
cold Set the cold reboot flag
triple Force a triple fault (init)
* kbd Use the keyboard controller. cold reset (default)
acpi Use the ACPI RESET_REG in the FADT. If ACPI is not configured or the
ACPI reset does not work, the reboot path attempts the reset using
the keyboard controller.
* efi Use efi reset_system runtime service. If EFI is not configured or the
EFI reset does not work, the reboot path attempts the reset using
the keyboard controller.

Using warm reset will be much faster especially on big memory
systems because the BIOS will not go through the memory check.
Disadvantage is that not all hardware will be completely reinitialized
on reboot so there may be boot problems on some systems.

* reboot=force

None of which work.

-----------------------------------------------------------------------

It appears earlier Intel boards also suffered the same problem:

Subject: Re: Machine restart doesn't work - Intel 965G, 2.6.19-rc2
http://lkml.indiana.edu/hypermail/linux/kernel/0610.2/2215.html

Are those at Intel aware of this problem?

I have tried many different options/settings, nothing seems to work.

All workaround are unsuccessful.

It appears the dmidecode is requested for these sorts of problems, that is
available here:
http://home.comcast.net/~jpiszcz/20091014/dmidecode.txt

Are there any other workarounds until Intel comes out with a patch/new
BIOS? Aside from shutting the system off and using wake on lan?

Justin.

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

hpa at zytor

Oct 15, 2009, 10:23 AM

Post #2 of 3 (761 views)
Permalink

Re: Intel DP55KG BIOS Bug (reboot hangs, is Intel aware of the problem?) [In reply to]

On 10/14/2009 03:02 PM, Justin Piszcz wrote:
> Hi,
>
> I have tried the following kernel parameters with '*' and reboot=b,
> reboot=h and reboot=s.
>

reboot=t (triple), reboot=p (pci) and reboot=a (acpi) would be useful to
test, too.

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

jpiszcz at lucidpixels

Oct 15, 2009, 2:01 PM

Post #3 of 3 (767 views)
Permalink

Re: Intel DP55KG BIOS Bug (reboot hangs, is Intel aware of the problem?) [In reply to]

On Thu, 15 Oct 2009, H. Peter Anvin wrote:

> On 10/14/2009 03:02 PM, Justin Piszcz wrote:
>> Hi,
>>
>> I have tried the following kernel parameters with '*' and reboot=b,
>> reboot=h and reboot=s.
>>
>
> reboot=t (triple), reboot=p (pci) and reboot=a (acpi) would be useful to
> test, too.
>
> -hpa
>

Thanks,

I find it kind of funny I tried the 4-5 options that didn't work first,
bad luck?

Here is what worked and what did not and what I ended up using:

reboot=a * SUCCESS
reboot=b * FAIL
reboot=cold * FAIL
reboot=efi * FAIL
reboot=force * FAIL
reboot=h * FAIL
reboot=p * SUCCESS
reboot=s * FAIL
reboot=t * SUCCESS
reboot=warm * FAIL

I am using reboot=a for now, until INTEL releases a BIOS fix for this bug.

From Bryan:

Try each of the following in the reboot= parameter: acpi, smp (32-bit
only), triple, efi, pci, warm, cold, force If one of them works, report
it, along with the output from dmidecode and lspci -nn, so a workaround
entry can be added.

dmidecode & lspci below--

http://home.comcast.net/~jpiszcz/20091015/dmidecode.txt
http://home.comcast.net/~jpiszcz/20091015/lspci-nn.txt

Justin.

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

Index | Next | Previous | View Threaded

Interested in having your list archived? Contact Gossamer Threads