From: Sebastian Seifert <lathander-Mmb7MZpHnFY@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: mutexes and preemption
Date: Wed, 3 Mar 2004 12:43:04 +0100 [thread overview]
Message-ID: <20040303114304.GA1513@ergo.gotdns.org> (raw)
In-Reply-To: <20040302225117.GA1660-nlVyBo/8EO9N0TnZuCh8vA@public.gmane.org>
On Tue, Mar 02, 2004 at 11:51:17PM +0100, Sebastian Seifert wrote:
> some vital information first: I'm using kernel 2.6.3-mm4 with DSDT in ramdisk
> patch applied, preemption is enabled, SMP disabled.
>
> I'm currently debugging the DSDT of my laptop (Benq Joybook 5000). Some ACPI
> method calls seem to be failing because of double acquisition of a mutex. One
> reproducible way to trigger the problem is to read the ac adapter's state. My
> syslog looks like this (I set debug_level to 31 and added printks in
> exoparg?.c):
There was a mistake in the last log I quoted - since I had changed the
notify value while playing around, I changed it back in the log. I
didn't realize it would be handled differently.
Anyway, I have done some experiments. I've done
echo 31 > /proc/acpi/debug_level
cat /proc/acpi/ac_adapter/AC/state
on different configurations of kernel and DSDT.
In my DSDT, the Acquire calls have a timeout value of 0x0FFF. If I leave
it at 0x0FFF on a preemptive kernel, the error happens. If I disable
preemption but leave the timeout at 0x0FFF, the error disappears. And if
I change the timeout of the Acquire calls to "0xFFFF" (i.e. they do not
time out) but leave on preemtion, the error disappears (but I still get
a single line "Failed to acquire semaphore").
Maybe someone can make sense out of the three logs that follow.
----- preemptive kernel, 0x0FFF timeout ------
r 3 12:21:01 tenshi kernel: Execute Method: [\_SB_.AC__._PSR] (Node dff60f88)
Mar 3 12:21:01 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 1404 (57C)
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [216] acpi_ec_read : Read [00] from address [92]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [221] acpi_ec_read : Read [31] from address [9c]
Mar 3 12:21:01 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 1404 (57C)
Mar 3 12:21:01 tenshi kernel: evmisc-0121 [215] ev_queue_notify_reques: Dispatching Notify(81) on node dff61ca8
Mar 3 12:21:01 tenshi kernel: evmisc-0141 [215] ev_queue_notify_reques: Unknown Notify Value: 81
Mar 3 12:21:01 tenshi kernel: Execute Method: [\_TZ_.THZN._CRT] (Node dff61948)
Mar 3 12:21:01 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 1404 (57C)
Mar 3 12:21:01 tenshi kernel: acpi_utils-0267 [229] acpi_evaluate_integer : Return value [3752]
Mar 3 12:21:01 tenshi kernel: acpi_thermal-0333 [228] acpi_thermal_get_trip_: Found critical threshold [3752]
Mar 3 12:21:01 tenshi kernel: acpi_utils-0256 [229] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._HOT]: AE_NOT_FOUND
Mar 3 12:21:01 tenshi kernel: acpi_thermal-0341 [228] acpi_thermal_get_trip_: No hot threshold
Mar 3 12:21:01 tenshi kernel: acpi_utils-0256 [229] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._PSV]: AE_NOT_FOUND
Mar 3 12:21:01 tenshi kernel: acpi_thermal-0353 [228] acpi_thermal_get_trip_: No passive threshold
Mar 3 12:21:01 tenshi kernel: Execute Method: [\_TZ_.THZN._AC0] (Node dff61a68)
Mar 3 12:21:01 tenshi kernel: acpi_utils-0267 [229] acpi_evaluate_integer : Return value [3380]
Mar 3 12:21:01 tenshi kernel: acpi_utils-0399 [229] acpi_evaluate_referenc: Found reference [dff620e8]
Mar 3 12:21:01 tenshi kernel: acpi_thermal-0394 [228] acpi_thermal_get_trip_: Found active threshold [0]:[3380]
Mar 3 12:21:01 tenshi kernel: Execute Method: [\_TZ_.THZN._AC1] (Node dff61b88)
Mar 3 12:21:01 tenshi kernel: acpi_utils-0267 [229] acpi_evaluate_integer : Return value [3280]
Mar 3 12:21:01 tenshi kernel: acpi_utils-0399 [229] acpi_evaluate_referenc: Found reference [dff61e28]
Mar 3 12:21:01 tenshi kernel: acpi_thermal-0394 [228] acpi_thermal_get_trip_: Found active threshold [1]:[3280]
Mar 3 12:21:01 tenshi kernel: acpi_utils-0256 [229] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._AC2]: AE_NOT_FOUND
Mar 3 12:21:01 tenshi kernel: Execute Method: [\_TZ_.THZN._TMP] (Node dff61c48)
Mar 3 12:21:01 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 3 (3)
Mar 3 12:21:01 tenshi kernel: osl-0909 [243] os_wait_semaphore : Failed to acquire semaphore[dffd8680|1|0], AE_TIME
Mar 3 12:21:01 tenshi kernel: osl-0909 [243] os_wait_semaphore : Failed to acquire semaphore[dffd8680|1|4095], AE_TIME
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [248] acpi_ec_read : Read [31] from address [9c]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [248] acpi_ec_read : Read [00] from address [9d]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [248] acpi_ec_read : Read [37] from address [9e]
Mar 3 12:21:01 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 3 (3)
Mar 3 12:21:01 tenshi kernel: exmutex-0264: *** Error: Thread 3 cannot release Mutex [MUT1] acquired by thread 57C
Mar 3 12:21:01 tenshi kernel: psparse-1120: *** Error: Method execution failed [\_TZ_.THZN._TMP] (Node dff61c48), AE_AML_NOT_OWNER
Mar 3 12:21:01 tenshi kernel: acpi_utils-0256 [230] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._TMP]: AE_AML_NOT_OWNER
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [228] acpi_ec_read : Read [00] from address [9d]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0230 [231] acpi_ec_write : Wrote [00] to address [9d]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [235] acpi_ec_read : Read [37] from address [9e]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0230 [241] acpi_ec_write : Wrote [37] to address [9e]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0178 [247] acpi_ec_read : Read [00] from address [a0]
Mar 3 12:21:01 tenshi kernel: acpi_ec-0230 [252] acpi_ec_write : Wrote [00] to address [a0]
Mar 3 12:21:01 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 1404 (57C)
Mar 3 12:21:01 tenshi kernel: exregion-0372 [257] ex_pci_config_space_ha: pci_config 0 (8) Seg(0000) Bus(0000) Dev(001f) Func(0000) Reg(00a0)
Mar 3 12:21:01 tenshi kernel: exregion-0372 [257] ex_pci_config_space_ha: pci_config 1 (8) Seg(0000) Bus(0000) Dev(001f) Func(0000) Reg(00a0)
Mar 3 12:21:01 tenshi kernel: acpi_utils-0267 [239] acpi_evaluate_integer : Return value [0]
------------------------------------------------
----- nonpreemptive kernel, 0x0FFF timeout -------
Mar 3 12:28:22 tenshi kernel: Execute Method: [\_SB_.AC__._PSR] (Node dff60f88)
Mar 3 12:28:22 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 1427 (593)
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [72] acpi_ec_read : Read [00] from address [92]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [72] acpi_ec_read : Read [31] from address [9c]
Mar 3 12:28:22 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 1427 (593)
Mar 3 12:28:22 tenshi kernel: evmisc-0121 [63] ev_queue_notify_reques: Dispatching Notify(81) on node dff61ca8
Mar 3 12:28:22 tenshi kernel: evmisc-0141 [63] ev_queue_notify_reques: Unknown Notify Value: 81
Mar 3 12:28:22 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 1427 (593)
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [73] acpi_ec_read : Read [00] from address [9d]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0230 [73] acpi_ec_write : Wrote [00] to address [9d]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [73] acpi_ec_read : Read [37] from address [9e]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0230 [73] acpi_ec_write : Wrote [37] to address [9e]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [73] acpi_ec_read : Read [00] from address [a0]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0230 [73] acpi_ec_write : Wrote [00] to address [a0]
Mar 3 12:28:22 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 1427 (593)
Mar 3 12:28:22 tenshi kernel: exregion-0372 [72] ex_pci_config_space_ha: pci_config 0 (8) Seg(0000) Bus(0000) Dev(001f) Func(0000) Reg(00a0)
Mar 3 12:28:22 tenshi kernel: exregion-0372 [72] ex_pci_config_space_ha: pci_config 1 (8) Seg(0000) Bus(0000) Dev(001f) Func(0000) Reg(00a0)
Mar 3 12:28:22 tenshi kernel: acpi_utils-0267 [54] acpi_evaluate_integer : Return value [0]
Mar 3 12:28:22 tenshi kernel: Execute Method: [\_TZ_.THZN._CRT] (Node dff61948)
Mar 3 12:28:22 tenshi kernel: acpi_utils-0267 [57] acpi_evaluate_integer : Return value [3752]
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0333 [56] acpi_thermal_get_trip_: Found critical threshold [3752]
Mar 3 12:28:22 tenshi kernel: acpi_utils-0256 [57] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._HOT]: AE_NOT_FOUND
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0341 [56] acpi_thermal_get_trip_: No hot threshold
Mar 3 12:28:22 tenshi kernel: acpi_utils-0256 [57] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._PSV]: AE_NOT_FOUND
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0353 [56] acpi_thermal_get_trip_: No passive threshold
Mar 3 12:28:22 tenshi kernel: Execute Method: [\_TZ_.THZN._AC0] (Node dff61a68)
Mar 3 12:28:22 tenshi kernel: acpi_utils-0267 [57] acpi_evaluate_integer : Return value [3380]
Mar 3 12:28:22 tenshi kernel: acpi_utils-0399 [57] acpi_evaluate_referenc: Found reference [dff620e8]
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0394 [56] acpi_thermal_get_trip_: Found active threshold [0]:[3380]
Mar 3 12:28:22 tenshi kernel: Execute Method: [\_TZ_.THZN._AC1] (Node dff61b88)
Mar 3 12:28:22 tenshi kernel: acpi_utils-0267 [57] acpi_evaluate_integer : Return value [3280]
Mar 3 12:28:22 tenshi kernel: acpi_utils-0399 [57] acpi_evaluate_referenc: Found reference [dff61e28]
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0394 [56] acpi_thermal_get_trip_: Found active threshold [1]:[3280]
Mar 3 12:28:22 tenshi kernel: acpi_utils-0256 [57] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._AC2]: AE_NOT_FOUND
Mar 3 12:28:22 tenshi kernel: Execute Method: [\_TZ_.THZN._TMP] (Node dff61c48)
Mar 3 12:28:22 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 3 (3)
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [76] acpi_ec_read : Read [31] from address [9c]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [76] acpi_ec_read : Read [00] from address [9d]
Mar 3 12:28:22 tenshi kernel: acpi_ec-0178 [76] acpi_ec_read : Read [37] from address [9e]
Mar 3 12:28:22 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 3 (3)
Mar 3 12:28:22 tenshi kernel: acpi_utils-0267 [58] acpi_evaluate_integer : Return value [3220]
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0229 [57] acpi_thermal_get_tempe: Temperature is 3220 dK
Mar 3 12:28:22 tenshi kernel: acpi_thermal-0740 [56] acpi_thermal_check : THZN: temperature[3220] sleep[0]
------------------------------------------------------
----- preemptive kernel, 0xFFFF timeout = no timeout -----
Mar 3 12:16:38 tenshi kernel: Execute Method: [\_SB_.AC__._PSR] (Node dff60f88)
Mar 3 12:16:38 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 1450 (5AA)
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [87] acpi_ec_read : Read [00] from address [92]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [93] acpi_ec_read : Read [36] from address [9c]
Mar 3 12:16:38 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 1450 (5AA)
Mar 3 12:16:38 tenshi kernel: evmisc-0121 [90] ev_queue_notify_reques: Dispatching Notify(81) on node dff61ca8
Mar 3 12:16:38 tenshi kernel: evmisc-0141 [90] ev_queue_notify_reques: Unknown Notify Value: 81
Mar 3 12:16:38 tenshi kernel: Execute Method: [\_TZ_.THZN._CRT] (Node dff61948)
Mar 3 12:16:38 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 1450 (5AA)
Mar 3 12:16:38 tenshi kernel: acpi_utils-0267 [104] acpi_evaluate_integer : Return value [3752]
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0333 [103] acpi_thermal_get_trip_: Found critical threshold [3752]
Mar 3 12:16:38 tenshi kernel: acpi_utils-0256 [104] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._HOT]: AE_NOT_FOUND
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0341 [103] acpi_thermal_get_trip_: No hot threshold
Mar 3 12:16:38 tenshi kernel: acpi_utils-0256 [104] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._PSV]: AE_NOT_FOUND
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0353 [103] acpi_thermal_get_trip_: No passive threshold
Mar 3 12:16:38 tenshi kernel: Execute Method: [\_TZ_.THZN._AC0] (Node dff61a68)
Mar 3 12:16:38 tenshi kernel: acpi_utils-0267 [104] acpi_evaluate_integer : Return value [3380]
Mar 3 12:16:38 tenshi kernel: acpi_utils-0399 [104] acpi_evaluate_referenc: Found reference [dff620e8]
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0394 [103] acpi_thermal_get_trip_: Found active threshold [0]:[3380]
Mar 3 12:16:38 tenshi kernel: Execute Method: [\_TZ_.THZN._AC1] (Node dff61b88)
Mar 3 12:16:38 tenshi kernel: acpi_utils-0267 [104] acpi_evaluate_integer : Return value [3280]
Mar 3 12:16:38 tenshi kernel: acpi_utils-0399 [104] acpi_evaluate_referenc: Found reference [dff61e28]
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0394 [103] acpi_thermal_get_trip_: Found active threshold [1]:[3280]
Mar 3 12:16:38 tenshi kernel: acpi_utils-0256 [104] acpi_evaluate_integer : Evaluate [\_TZ_.THZN._AC2]: AE_NOT_FOUND
Mar 3 12:16:38 tenshi kernel: Execute Method: [\_TZ_.THZN._TMP] (Node dff61c48)
Mar 3 12:16:38 tenshi kernel: AML_ACQUIRE_OP on [MUT1] by thread 3 (3)
Mar 3 12:16:38 tenshi kernel: osl-0909 [118] os_wait_semaphore : Failed to acquire semaphore[dffd8680|1|0], AE_TIME
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [118] acpi_ec_read : Read [32] from address [9d]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0230 [118] acpi_ec_write : Wrote [32] to address [9d]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [118] acpi_ec_read : Read [41] from address [9e]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0230 [118] acpi_ec_write : Wrote [41] to address [9e]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [118] acpi_ec_read : Read [00] from address [a0]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0230 [118] acpi_ec_write : Wrote [00] to address [a0]
Mar 3 12:16:38 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 1450 (5AA)
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [123] acpi_ec_read : Read [36] from address [9c]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [123] acpi_ec_read : Read [32] from address [9d]
Mar 3 12:16:38 tenshi kernel: acpi_ec-0178 [123] acpi_ec_read : Read [41] from address [9e]
Mar 3 12:16:38 tenshi kernel: AML_RELEASE_OP on [MUT1] by thread 3 (3)
Mar 3 12:16:38 tenshi kernel: acpi_utils-0267 [105] acpi_evaluate_integer : Return value [3270]
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0229 [104] acpi_thermal_get_tempe: Temperature is 3270 dK
Mar 3 12:16:38 tenshi kernel: acpi_thermal-0740 [103] acpi_thermal_check : THZN: temperature[3270] sleep[0]
Mar 3 12:16:38 tenshi kernel: exregion-0372 [101] ex_pci_config_space_ha: pci_config 0 (8) Seg(0000) Bus(0000) Dev(001f) Func(0000) Reg(00a0)
Mar 3 12:16:38 tenshi kernel: exregion-0372 [101] ex_pci_config_space_ha: pci_config 1 (8) Seg(0000) Bus(0000) Dev(001f) Func(0000) Reg(00a0)
Mar 3 12:16:38 tenshi kernel: acpi_utils-0267 [83] acpi_evaluate_integer : Return value [0]
------------------------------------------------------------
Sebastian
--
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knew that Santa would never lie.
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next prev parent reply other threads:[~2004-03-03 11:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-02 22:51 mutexes and preemption Sebastian Seifert
[not found] ` <20040302225117.GA1660-nlVyBo/8EO9N0TnZuCh8vA@public.gmane.org>
2004-03-03 11:43 ` Sebastian Seifert [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-03-03 7:05 Yu, Luming
[not found] ` <3ACA40606221794F80A5670F0AF15F8401CBB713-SRlDPOYGfgogGBtAFL8yw7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2004-03-03 7:24 ` Sebastian Seifert
2004-03-03 23:59 Moore, Robert
2004-03-04 1:08 Moore, Robert
[not found] ` <CFF522B18982EA4481D3A3E23B83141C01C988CE-sBd4vmA9Se6SsB6bSF6DdVDQ4js95KgL@public.gmane.org>
2004-03-04 10:22 ` Sebastian Seifert
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