Re: 2.6.18-rc4-mm2

Re: 2.6.18-rc4-mm2

[Andrew Morton]

On Mon, 21 Aug 2006 11:20:57 +0200
Maciej Rutecki <maciej.rutecki@gmail.com> wrote:

> Andrew Morton napisał(a):
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm2/
> > 
> > 
> 
> I have this entry in dmesg:
> 
> [   23.701949] ACPI Error (utglobal-0125): Unknown exception code:
> 0xFFFFFFEA [20060707]
> [   23.702181] ACPI Error (utglobal-0125): Unknown exception code:
> 0xFFFFFFEA [20060707]
> [   23.705646]   got res [dd000000:dd00ffff] bus [dd000000:dd00ffff]
> flags 7202 for BAR 6 of 0000:01:00.0
> 
> When I try:
> 
> cat standby > /sys/power/state
> 
> graphics card doesn't go to standby, I had this text on console:
> 
> [  280.908000] Stopping tasks: =========================|
> [  280.920000] Suspending console(s)
> 

Can you try reverting git-acpi.patch please?
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Re: 2.6.18-rc4-mm2

[Maciej Rutecki]

Andrew Morton napisał(a):

> 
> Can you try reverting git-acpi.patch please?
> 

I have the same error.

-- 
Maciej Rutecki <maciej.rutecki@gmail.com>
http://www.unixy.pl
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)
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Re: 2.6.18-rc4-mm2

[Len Brown]

On Monday 21 August 2006 05:20, Maciej Rutecki wrote:

> I have this entry in dmesg:
> 
> [   23.701949] ACPI Error (utglobal-0125): Unknown exception code:
> 0xFFFFFFEA [20060707]
> [   23.702181] ACPI Error (utglobal-0125): Unknown exception code:
> 0xFFFFFFEA [20060707]
> [   23.705646]   got res [dd000000:dd00ffff] bus [dd000000:dd00ffff]
> flags 7202 for BAR 6 of 0000:01:00.0

Apparently the "got res" part is normal -- or normal for pr_debug():

pci_update_resource(struct pci_dev *dev, struct resource *res, int resno)
{
        struct pci_bus_region region;
        u32 new, check, mask;
        int reg;

        /* Ignore resources for unimplemented BARs and unused resource slots
           for 64 bit BARs. */
        if (!res->flags)
                return;

        pcibios_resource_to_bus(dev, &region, res);

        pr_debug("  got res [%llx:%llx] bus [%lx:%lx] flags %lx for "
                 "BAR %d of %s\n", (unsigned long long)res->start,
                 (unsigned long long)res->end,
                 region.start, region.end, res->flags, resno, pci_name(dev));

Re: 2.6.18-rc4-mm2

[Len Brown]

Please dump the stack so we can find the secretive caller to 
acpi_format_exception().

thanks,
-Len

diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index 014030a..561ea5e 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -125,6 +125,7 @@ const char *acpi_format_exception(acpi_s
 			    "Unknown exception code: 0x%8.8X", status));
 
 		exception = "UNKNOWN_STATUS_CODE";
+dump_stack();
 	}
 
 	return (ACPI_CAST_PTR(const char, exception));

[Re: 2.6.18-rc4-mm2] standby error

[Maciej Rutecki]

[-- Attachment #1: Type: text/plain, Size: 968 bytes --]

Len Brown napisał(a):
> Please dump the stack so we can find the secretive caller to 
> acpi_format_exception().
> 
> thanks,
> -Len
> 
> diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
> index 014030a..561ea5e 100644
> --- a/drivers/acpi/utilities/utglobal.c
> +++ b/drivers/acpi/utilities/utglobal.c
> @@ -125,6 +125,7 @@ const char *acpi_format_exception(acpi_s
>  			    "Unknown exception code: 0x%8.8X", status));
>  
>  		exception = "UNKNOWN_STATUS_CODE";
> +dump_stack();
>  	}
>  
>  	return (ACPI_CAST_PTR(const char, exception));
> 
> 

Kernel 2.6.18-rc4-mm2 with reverted
fs-cache-make-kafs-use-fs-cache-12.patch and git-acpi.patch (as
previous), with added dump_stack().

I try: "echo standby > /sys/power/state".

I look in the dmesg and syslog but I not notice any new entries.


-- 
Maciej Rutecki <maciej.rutecki@gmail.com>
http://www.unixy.pl
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)

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Re: 2.6.18-rc4-mm2

[Grant Wilson]

On Mon, Aug 21, 2006 at 07:22:09PM -0400, Len Brown wrote:
> Please dump the stack so we can find the secretive caller to 
> acpi_format_exception().

I get three of these when booting and the output from dump_stack
is the same for each.  I've observed no problems as a result of
these reported failures.  Here is the output from the first call
of dump_stack:

Aug 22 19:39:33 tlg kernel: ACPI Error (utglobal-0125): Unknown exception code: 0xFFFFFFEA [20060707]
Aug 22 19:39:33 tlg kernel: 
Aug 22 19:39:33 tlg kernel: Call Trace:
Aug 22 19:39:33 tlg kernel:  [<ffffffff80267cb8>] dump_trace+0xba/0x39e
Aug 22 19:39:33 tlg kernel:  [<ffffffff80267fd8>] show_trace+0x3c/0x52
Aug 22 19:39:33 tlg kernel:  [<ffffffff80268003>] dump_stack+0x15/0x17
Aug 22 19:39:33 tlg kernel:  [<ffffffff803c8d10>] acpi_format_exception+0xc0/0xcb
Aug 22 19:39:33 tlg kernel:  [<ffffffff803c54e5>] acpi_ut_status_exit+0x38/0x73
Aug 22 19:39:33 tlg kernel:  [<ffffffff803c11a0>] acpi_walk_resources+0x12e/0x140
Aug 22 19:39:33 tlg kernel:  [<ffffffff803d85e5>] acpi_motherboard_add+0x26/0x32
Aug 22 19:39:33 tlg kernel:  [<ffffffff803d73d7>] acpi_bus_driver_init+0x3a/0x98
Aug 22 19:39:33 tlg kernel:  [<ffffffff803d796c>] acpi_bus_register_driver+0xbd/0x144
Aug 22 19:39:33 tlg kernel:  [<ffffffff807dcbd4>] acpi_motherboard_init+0x10/0x130
Aug 22 19:39:33 tlg kernel:  [<ffffffff802668f1>] init+0x13b/0x313
Aug 22 19:39:33 tlg kernel:  [<ffffffff8025dba8>] child_rip+0xa/0x12
Aug 22 19:39:33 tlg kernel: DWARF2 unwinder stuck at child_rip+0xa/0x12
Aug 22 19:39:33 tlg kernel: Leftover inexact backtrace:
Aug 22 19:39:33 tlg kernel:  [<ffffffff802632ae>] _spin_unlock_irq+0x2b/0x53
Aug 22 19:39:33 tlg kernel:  [<ffffffff8025d300>] restore_args+0x0/0x30
Aug 22 19:39:33 tlg kernel:  [<ffffffff80215fed>] release_console_sem+0x4d/0x238
Aug 22 19:39:33 tlg kernel:  [<ffffffff802667b6>] init+0x0/0x313
Aug 22 19:39:33 tlg kernel:  [<ffffffff8025db9e>] child_rip+0x0/0x12

Cheers,
Grant