[Bug 155496] ACPI: Critical temperature reached (65 C), shutting down.

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Summary: ACPI: Critical temperature reached (65 C), shutting down.


https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=155496


[EMAIL PROTECTED] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Problems with ACPI shutdown |ACPI: Critical temperature
                   |temperature                 |reached (65 C), shutting
                   |                            |down.
             Status|ASSIGNED                    |NEEDINFO




------- Additional Comments From [EMAIL PROTECTED]  2007-07-19 21:28 EST -------
critical (S5):           65 C
passive:                 55 C: ...

mystery #1: 65C != BIOS SETUP ACPI critical shutdown temperature.

Can you actually change this field in the BIOS SETUP?
If yes, do the changes there have any effect at all
on what you see in the trip_points file?
(or any differences in the inb/outb command results requested below?)

mystery #2: FC3 didn't shut down, FC4 and later do shut down
this was the 2.6.9 -> 2.6.12 period.  It is quite possible
that something started working here that was broken in FC3.
Indeed, the fact that FC3 output show state=ok when the temperature
is 63 -- clearly above the 55C passive trip-point -- suggests
that it was FC3 that was actually broken.
 
BTW. Does this system have a fan?
Yes, 65C seems very low for a critical shutdown.
55C also seems quite low to throttle your processor.

please attach the output from dmesg -s64000
running the latest kernel you've got on hand.

please paste the output from lspci

Here is the ThermalZone in the DSDT:

    OperationRegion (FNOR, SystemIO, 0x084C, 0x04)
    Scope (\_TZ)
    {
        Name (THBF, Buffer (0x04)
        {
            0x00, 0x00, 0x00, 0x00
        })
        Method (KELV, 1, NotSerialized)
        {
            And (Arg0, 0xFF, Local0)
            Multiply (Local0, 0x0A, Local0)
            Add (Local0, 0x0AAC, Local0)
            Return (Local0)
        }

        Name (PLCY, 0x00)

// unclear why PLCY is a variable, as AML doesn't write it
// it is used below to select the passive trip-point

        OperationRegion (THOR, SystemIO, 0x72, 0x02)
        Field (THOR, ByteAcc, NoLock, Preserve)
        {
            ECMI,   8,
            ECMD,   8
        }

        IndexField (ECMI, ECMD, ByteAcc, NoLock, Preserve)
        {
                    Offset (0xF0),
            TMIN,   8,
            TMAX,   8,
            TCRT,   8
        }

// These are the fields we want to see

        Name (TSP, 0x05)
        Name (TC1, 0x02)
        Name (TC2, 0x04)
        OperationRegion (TSN1, SystemIO, 0x0C20, 0x01)
        Field (TSN1, ByteAcc, NoLock, Preserve)
        {
            CURT,   8
        }

        Method (TCHG, 0, NotSerialized)
        {
            Noop
        }

        Method (RTMP, 0, NotSerialized)
        {
            Not (CURT, Local0)
            Subtract (Local0, 0xB3, Local0)
            Not (Local0, Local0)
            Add (Local0, 0x01, Local0)
            And (Local0, 0xFF, Local0)
            Store (Local0, Local1)
            Divide (Local0, 0x0A, Local0, Local2)
            Subtract (Local1, Local2, Local0)
            ShiftRight (Local0, 0x01, Local0)
            Store (Local0, DBG8)
            Return (Local0)
        }
        ThermalZone (THRM)
        {
            Method (_CRT, 0, NotSerialized)
            {
                Return (KELV (TCRT))
            }

            Method (_TMP, 0, NotSerialized)
            {
                If (LEqual (TCRT, 0x4F))
                {
                    Return (KELV (0x1E))
                }
                Else
                {
                    Return (KELV (RTMP ()))
                }
            }

            Name (_PSL, Package (0x01)
            {
                \_PR.CPU1
            })
            Method (_TSP, 0, NotSerialized)
            {
                Multiply (TSP, 0x0A, Local0)
                Return (Local0)
            }

            Method (_TC1, 0, NotSerialized)
            {
                Return (TC1)
            }

            Method (_TC2, 0, NotSerialized)
            {
                Return (TC2)
            }

            Method (_PSV, 0, NotSerialized)
            {
                If (PLCY)
                {
                    Return (KELV (TMIN))
                }
                Else
                {
                    Return (KELV (TMAX))
                }
            }
        }
    }

please paste the output from these commands:
# outb 0xF0 0x72
# inb 0x73
this should give us TMIN
# outb 0xF1 0x72
# inb 0x73
this should give us TMAX
# outb 0xF2 0x72
# inb 0x73
This should give us TCRT 

If you repeat this, you should get the same answers.
It would be good to verify also that you get the same
answers with "acpi=off".

BTW. booting with "acpi=off" should work-around the symptom of this bug.

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