On 01/18/2011 08:46 PM, Genes MailLists wrote:
> On 01/18/2011 03:37 PM, Alessandro Boggiano wrote:
>> I was looking into /var/log/messages and I discoverd this! :(
>>
>> I went on HP site and I found indeed a bios upgrade, but it reports:
>> Fix/Enhancement: Updates the Computrace Option ROM to verison 889.
>>
>
> ...
>
>> Jan 18 20:26:46 localhost kernel: [ 0.000000] Disabling lock
>> debugging due to kernel taint
>
> May be unrelated - but what is tainting your kernel ? You have nvidia
> drivers instead of nouveau maybe ?
>
>
This _is_ what's tainting the kernel. If you read back earlier in the log:
Jan 18 20:26:46 localhost kernel: [ 0.000000] Pid: 0, comm: swapper
Not tainted 2.6.35.10-74.fc14.i686.PAE #1
So the kernel's not tainted here but later on we get:
Jan 18 20:26:46 localhost kernel: [ 0.000000] Disabling lock
debugging due to kernel taint
This is because the routine that handles the invalid DMAR address uses
WARN_TAINT_ONCE to report the problem:
static void warn_invalid_dmar(u64 addr, const char *message)
{
WARN_TAINT_ONCE(
1, TAINT_FIRMWARE_WORKAROUND,
"Your BIOS is broken; DMAR reported at address %llx%s!\n"
"BIOS vendor: %s; Ver: %s; Product Version: %s\n",
addr, message,
dmi_get_system_info(DMI_BIOS_VENDOR),
dmi_get_system_info(DMI_BIOS_VERSION),
dmi_get_system_info(DMI_PRODUCT_VERSION));
}
Regards,
Bryn.
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