lkml.org 
[lkml]   [2018]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: 4.18rc3 TX2 boot failure with "ACPICA: AML parser: attempt to continue loading table after error"
From
Date
Hi,

First thanks for the patch..

On 07/08/2018 04:14 AM, Rafael J. Wysocki wrote:
> On Monday, July 2, 2018 11:41:42 PM CEST Jeremy Linton wrote:
>> Hi,
>>
>> I'm experiencing two problems with commit 5088814a6e931 which is
>> "ACPICA: AML parser: attempt to continue loading table after error"
>>
>> The first is this boot failure on a thunderX2:
>>
>> [ 10.770098] ACPI Error: Ignore error and continue table load

[trimming]

>> ]---
>>
>> Which does appear to be the result of some bad data in the table, but it
>> was working with 4.17, and reverting this commit solves the problem.
>
> Does the patch below make any difference?
>
> ---
> drivers/acpi/acpica/psobject.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> Index: linux-pm/drivers/acpi/acpica/psobject.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/acpica/psobject.c
> +++ linux-pm/drivers/acpi/acpica/psobject.c
> @@ -39,6 +39,9 @@ static acpi_status acpi_ps_get_aml_opcod
> ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
>
> walk_state->aml = walk_state->parser_state.aml;
> + if (!walk_state->aml)
> + return AE_CTRL_PARSE_CONTINUE;
> +

Well this seems to avoid the crash, but now it hangs right after on the
"Ignore error and continue table load" message. I would post the DSDT
but I'm borrowing this machine, and I understand the firmware to be an
early release, so...

Anyway, now that I have access again, i'm turning up the debug
messaging, let me see if that points at whats causing the hang.


Thanks,



\
 
 \ /
  Last update: 2018-07-09 22:46    [W:2.519 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site