ACPI: EC: missing confirmations, switch off interrupt mode.

[Matt Zimmerman]

I've started to see this error during otherwise-normal system operation since one of the recent kernel updates. Earlier Intrepid 2.6.27 kernels did not show this error. It is followed by several more messages whose meaning is unclear to me:

Oct 15 10:28:08 perseus kernel: [84629.621056] ACPI: EC: missing confirmations, switch off interrupt mode.
Oct 15 10:28:09 perseus kernel: [84630.126650] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
Oct 15 10:28:09 perseus kernel: [84630.126684] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.EC__.LPMD] (Node ffff8800bde3b0e0), AE_TIME
Oct 15 10:28:09 perseus kernel: [84630.126859] ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff8800bd424ec0), AE_TIME
Oct 15 10:28:09 perseus kernel: [84630.127004] ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU1._PPC] (Node ffff8800bd424e00), AE_TIME
Oct 15 10:28:09 perseus kernel: [84630.127153] ACPI Exception (processor_perflib-0145): AE_TIME, Evaluating _PPC [20080609]

Older logs show it has been happening since approximately 23 September:
/var/log/kern.log:Oct 15 10:28:08 perseus kernel: [84629.621056] ACPI: EC: missing confirmations, switch off interrupt mode.
/var/log/kern.log:Oct 15 14:12:01 perseus kernel: [ 3511.400181] ACPI: EC: missing confirmations, switch off interrupt mode.
/var/log/kern.log.0:Oct 12 20:47:28 perseus kernel: [26085.852122] ACPI: EC: missing confirmations, switch off interrupt mode.
/var/log/kern.log.2.gz:Oct 4 11:11:05 perseus kernel: [ 4705.258302] ACPI: EC: missing confirmations, switch off interrupt mode.
/var/log/kern.log.3.gz:Sep 23 23:31:17 perseus kernel: [36071.180038] ACPI: EC: missing confirmations, switch off interrupt mode.

There is also an independent confirmation of this sequence of messages in this comment on an unrelated bug: https://bugs.edge.launchpad.net/ubuntu/+source/cups/+bug/254022/comments/9

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 8.10
Package: linux-image-2.6.27-7-generic 2.6.27-7.11 [modified: lib/modules/2.6.27-7-generic/modules.pcimap lib/modules/2.6.27-7-generic/modules.dep lib/modules/2.6.27-7-generic/modules.ieee1394map lib/modules/2.6.27-7-generic/modules.usbmap lib/modules/2.6.27-7-generic/modules.isapnpmap lib/modules/2.6.27-7-generic/modules.inputmap lib/modules/2.6.27-7-generic/modules.seriomap lib/modules/2.6.27-7-generic/modules.alias lib/modules/2.6.27-7-generic/modules.symbols]
ProcCmdLine: root=UUID=305dde78-d20a-4248-aaf4-09447b7c5791 ro quiet splash
ProcEnviron:
 LC_COLLATE=C
 PATH=/home/username/bin:/usr/lib/ccache:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/sbin:/usr/sbin:/usr/games:/usr/lib/surfraw
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
ProcVersionSignature: Ubuntu 2.6.27-7.11-generic
SourcePackage: linux

[Jim Louvau (jlouvau)]

Seeing it here also on a dual-core Turion64 laptop.

[Robert Jordens (jordens)]

Simila on a Lenovo X61 tablet.

Oct 25 14:25:32 frazzle kernel: [27812.972199] ACPI: EC: missing confirmations, switch off interrupt mode.
Oct 25 14:25:33 frazzle kernel: [27813.477110] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
Oct 25 14:25:33 frazzle kernel: [27813.477139] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.EC__.GBST] (Node f7019af8), AE_TIME
Oct 25 14:25:33 frazzle kernel: [27813.477325] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.EC__.BAT0._BST] (Node f7019be8), AE_TIME
Oct 25 14:25:33 frazzle kernel: [27813.477497] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

http://marc.info/?l=linux-kernel&m=122496070408815 may be related.

[tekstr1der (tekstr1der)]

that looks familiar...

Nov 1 20:56:45 galvatron kernel: [ 4286.704114] ACPI: EC: missing confirmations, switch off interrupt mode.
Nov 1 20:56:46 galvatron kernel: [ 4287.224124] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
Nov 1 20:56:46 galvatron kernel: [ 4287.224195] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0.UPBS] (Node f7414a80), AE_TIME
Nov 1 20:56:46 galvatron kernel: [ 4287.224367] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0._BST] (Node f7414a50), AE_TIME
Nov 1 20:56:46 galvatron kernel: [ 4287.224534] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

[Günther Köckerandl (gkoe-deactivatedaccount)]

Yet another "me too", this time the error seems related to the graphics-controller:

Nov 2 13:36:21 box kernel: [ 8055.273097] ACPI: EC: missing confirmations, switch off interrupt mode.
Nov 2 13:36:21 box kernel: [ 8055.793155] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
Nov 2 13:36:21 box kernel: [ 8055.793198] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.GFX0.DD03._BQC] (Node ffff88007f33c480), AE_TIME

The error occurs after about 2 to 4h uptime for some time now. When this happens, the keyboard gets very unresponsive and the only way to fix this seems to be a reboot.

[Paul Bryan (pbryan)]

And me too...

[ 2120.713076] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 2121.213043] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[ 2121.213078] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.EC__.LPMD] (Node ffff88013ba3ab40), AE_TIME
[ 2121.213287] ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88013b1916a0), AE_TIME
[ 2121.213458] ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU1._PPC] (Node ffff88013b1919e0), AE_TIME
[ 2121.213634] ACPI Exception (processor_perflib-0145): AE_TIME, Evaluating _PPC [20080609]

[Martin Thorsen Ranang (mtr)]

Me too, on a Lenovo/IBM Thinkpad X60:

Nov 6 21:48:50 mtr-laptop kernel: [36360.364088] ACPI: EC: missing confirmations, switch off interrupt mode.
Nov 6 21:48:51 mtr-laptop kernel: [36360.868090] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
Nov 6 21:48:51 mtr-laptop kernel: [36360.868118] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.EC__.BAT0._BST] (Node f70189f0), AE_TIME
Nov 6 21:48:51 mtr-laptop kernel: [36360.868269] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

~$ uname -a
Linux mtr-laptop 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 i686 GNU/Linux

[Ryan C. Underwood (nemesis-icequake)]

HP DV2910US:

[ 3086.575209] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 3087.077069] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[ 3087.077103] ACPI Error (psparse-0530): Method parse/execution failed [\_TZ_.TZS1._TMP] (Node ffff8800bee30640), AE_TIME

uname -a:
Linux achpee 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:06 UTC 2008 x86_64 GNU/Linux

[Jarkko Lietolahti (jarkko-jab)]

Asus M50s with 8.10:

[29269.881128] ACPI: EC: missing confirmations, switch off interrupt mode.
[29270.384111] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[29270.384144] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_.BVOT] (Node ffff88013f004d60), AE_TIME
[29270.384331] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.BAT0._BST] (Node ffff88013f004b00), AE_TIME
[29270.384493] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

uname -a:
Linux gandalf 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:06 UTC 2008 x86_64 GNU/Linux

[MisterMark (markolree)]

Here also the same errors:
Ubuntu 8.10 on a Acer 7720G
 [ 263.664072] ACPI: EC: missing confirmations, switch off interrupt mode.
 [ 264.180587] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
 [ 264.180660] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.BAT0._BST] (Node f7419108), AE_TIME
 [ 264.180941] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

[Hasanuddin Abu Bakar (bizkut-limau)]

Look familiar to me. This is happen when I disconnect the AC power adapter and reconnect it. Acer Aspire One latest Intrepid kernel 2.6.7

[74894.842324] ACPI: EC: acpi_ec_wait timeout, status = 0x10, event = "b0=1"
[74894.842362] ACPI: EC: read timeout, command = 128
[74894.845073] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[74894.845123] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT1._BST] (Node f7813b70), AE_TIME
[74894.845370] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

[Leann Ogasawara (leannogasawara)]

Seems to be a result of the following upstream patch that was pulled in.

ogasawara@emiko:~/ubuntu-intrepid$ git log -p 9f750367cbd13a412d628ad6f93479b507e87089
commit 9f750367cbd13a412d628ad6f93479b507e87089
Author: Alexey Starikovskiy <email address hidden>
Date: Thu Sep 25 21:00:31 2008 +0400

    UBUNTU: SAUCE: [PATCH] ACPI: EC: do transaction from interrupt context

    Bug: #277802

    It is easier and faster to do transaction directly from interrupt context
    rather than waking control thread.
    Also, cleaner GPE storm avoidance is implemented.
    References: http://bugzilla.kernel.org/show_bug.cgi?id=9998
                http://bugzilla.kernel.org/show_bug.cgi?id=10724
                http://bugzilla.kernel.org/show_bug.cgi?id=10919
                http://bugzilla.kernel.org/show_bug.cgi?id=11309
                http://bugzilla.kernel.org/show_bug.cgi?id=11549
    Signed-off-by: Alexey Starikovskiy <email address hidden>
    Signed-off-by: Len Brown <email address hidden>
    Signed-off-by: Tim Gardner <email address hidden>

[Sébastien Valette (sebastien-valette)]

also visible on a Sony vaio ns12m :

[ 2767.704075] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 2768.224103] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[ 2768.224136] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0._BST] (Node f741c9c0), AE_TIME
[ 2768.224285] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

[MisterMark (markolree)]

Today again a restart with the same error

 [ 2292.390864] ACPI: EC: missing confirmations, switch off interrupt mode.
 [ 2292.908103] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
 [ 2292.908134] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPC_.BAT0._BST] (Node f7419108), AE_TIME
 [ 2292.908254] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

Here it seams to appear only when i am updating XP in my VirtualBox (i know its bad, but i just went over and need to backup/syncronise some files to linux from windows)

[Martin Mancuska (borgcube)]

I have same messages after wake up from hibernation (kernel 2.6.27.5, lenovo 3000 n200 with pentium dual core):
ACPI: EC: missing confirmations, switch off interrupt mode.
ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.GFX0.DD03._BQC] (Node ffff88003f01c480), AE_TIME

[Andy Whitcroft (apw)]

Looking at one of my systems I also have seen a number of these.
Of particular note I have actually had one on the last Hardy kernel
where the messages are subtly different, so its not 100% clear if this
is completely new:

 Inspecting /boot/System.map-2.6.27-7-generic
 [ 79.822055] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [31016.836049] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-9-generic
 [ 29.513497] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-9-generic
 [ 213.590123] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-9-generic
 [ 100.030561] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-9-generic
 [ 3713.784057] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-9-generic
 [ 2452.800033] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 29.461870] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 3113.704167] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 174.612109] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 29.721065] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [14241.581584] ACPI: EC: missing confirmations, switch off interrupt mode.
 [14245.433099] ACPI: EC: non-query interrupt received, switching to interrupt mode
 Inspecting /boot/System.map-2.6.27-7-generic
 [20272.644287] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 29.570586] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 31.001587] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 31.153729] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 369.113365] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 31.172995] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.24-21-generic
 [ 1.010578] ACPI: EC: missing OBF confirmation, don't expect it any longer.
 [ 1.509558] ACPI: EC: missing write data confirmation, don't expect it any longer.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 435.329040] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 146.100001] ACPI: EC: missing confirmations, switch off interrupt mode.
 Inspecting /boot/System.map-2.6.27-7-generic
 [ 0.536170] ACPI: EC: driver started in interrupt mode
 [ 30.808357] ACPI: EC: missing confirmations, switch off interrupt mode.

It should noted that there seem to be two distinct patte...

[Leann Ogasawara (leannogasawara)]

Hi Andy,

You may want to also take a look at http://bugzilla.kernel.org/show_bug.cgi?id=11841 . Which has a final comment of:

pach shipped in 2.6.28-rc4-git3

closed.

commit f8248434e6a11d7cd314281be3b39bbcf82fc243
Author: Alan Jenkins <email address hidden>
Date: Sat Nov 1 11:05:26 2008 +0000

    ACPI: EC: make kernel messages more useful when GPE storm is detected

[Dmitry Pankratov (dremon)]

I got this issue on MacBook Pro, Intrepid/AMD64, kernel 2.6.27-8:

[ 944.264041] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 944.781055] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[ 944.781109] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPCB.EC__.SMB0.SBPC] (Node ffff88007eb360c0), AE_TIME
[ 944.781177] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPCB.EC__.SMB0.SBRW] (Node ffff88007eb360e0), AE_TIME
[ 944.781260] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0.UBST] (Node ffff88007eb363a0), AE_TIME
[ 944.781316] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0._BST] (Node ffff88007eb36300), AE_TIME
[ 944.781441] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

After this event happens the virtual machines in VirtualBox become "sticky" and the only way to cure it is to power off the laptop and power it on back (reboot does not help).

[Marlon Cisternas Milla (mcisternas-deactivatedaccount)]

I confirm this in my Compaq Presario C708LA with Intrepid Ibex.

[ 6139.513106] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 6140.032130] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[ 6140.032170] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0._BST] (Node f7416c48), AE_TIME
[ 6140.032292] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609]

Thanks.

[Laurent Bonnaud (laurent-bonnaud)]

On my laptop, this bug is fixed in this kernel version:

$ uname -a
Linux vougeot 2.6.27-10-generic #1 SMP Fri Nov 21 12:00:22 UTC 2008 i686 GNU/Linux

[CarloBecchi (carlo-becchi-web)]

Same Here.
My laptop is an Acer Aspire 5510, and it suffers from very slow HD (pata on Intel ICH6) transfers, freezing the computer, and leaving the DVD burner useless, it just burn (and mount) CDs.
During the CD burn, or CD access, i get the log full of those:

Dec 4 16:25:28 carlo-laptop kernel: [20662.274848] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 4 16:26:03 carlo-laptop kernel: [20697.453864] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 4 16:26:08 carlo-laptop kernel: [20702.473624] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 4 16:26:13 carlo-laptop kernel: [20707.484349] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 4 16:28:03 carlo-laptop kernel: [20817.698851] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 4 16:28:08 carlo-laptop kernel: [20822.717785] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 4 16:30:43 carlo-laptop kernel: [20978.043373] ACPI: EC: non-query interrupt received, switching to interrupt mode

During burning time or CD access, the PC freezes constantly

Intrepid, kernel: 2.6.27-9-generic

[isazi (isazi)]

I have an Acer TravelMate 2300, Intepid, Kernel 2.6.27-9-generic and I've found on my logs lots of this entries:

Dec 9 18:58:18 data kernel: [ 7414.707926] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:58:28 data kernel: [ 7424.721007] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:58:54 data kernel: [ 7450.457953] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:15 data kernel: [ 7471.428633] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:20 data kernel: [ 7476.454202] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:30 data kernel: [ 7486.941607] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:36 data kernel: [ 7492.323762] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:41 data kernel: [ 7497.398111] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:46 data kernel: [ 7502.712724] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:51 data kernel: [ 7507.989129] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:57 data kernel: [ 7513.282074] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 18:59:58 data kernel: [ 7514.340526] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 19:00:02 data kernel: [ 7518.502774] ACPI: EC: non-query interrupt received, switching to interrupt mode
Dec 9 19:00:07 data kernel: [ 7523.810520] ACPI: EC: non-query interrupt received, switching to interrupt mode

It's plenty of them, one after one every few seconds; never had that entries on Hardy.

[Andy Whitcroft (apw)]

I was having these on an irregular basis until I installed a test kernel based on the upcoming -11 kernel. There is an ACPI flood detection fix for non-interrupt access which looks likely the base of the fix. If those who were seeing this extensively could try the kernel at the URL below and report back:

    http://people.ubuntu.com/~apw/webcams1/

[Matt Zimmerman (mdz)]

Can you send a link to the patch in question?

[predder (predder)]

I was also affected by this on a HP Pavilion dv2000 series laptop (DV2637):
-------------
Jan 19 00:47:27 predtop kernel: [ 1333.064180] ACPI: EC: missing confirmations, switch off interrupt mode.
Jan 19 00:47:27 predtop kernel: [ 1333.565119] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
Jan 19 00:47:27 predtop kernel: [ 1333.565142] ACPI Error (psparse-0530): Method parse/execution failed [\_TZ_.TZS0._TMP] (Node f7410d68), AE_TIME
--------------

So I installed the kernel you linked Andy. The Error hasn't shown up yet and I noticed the following from around boot time:
----------------------------------
Jan 19 01:08:42 predtop kernel: [ 0.440305] ACPI: bus type pci registered
Jan 19 01:08:42 predtop kernel: [ 0.441049] ACPI: EC: Look up EC in DSDT
Jan 19 01:08:42 predtop kernel: [ 0.447409] ACPI: BIOS _OSI(Linux) query ignored via DMI
Jan 19 01:08:42 predtop kernel: [ 0.450482] ACPI: Interpreter enabled
Jan 19 01:08:42 predtop kernel: [ 0.450487] ACPI: (supports S0 S3 S4 S5)
Jan 19 01:08:42 predtop kernel: [ 0.450495] ACPI: Using IOAPIC for interrupt routing
Jan 19 01:08:42 predtop kernel: [ 0.450495] ACPI: EC: non-query interrupt received, switching to interrupt mode
Jan 19 01:08:42 predtop kernel: [ 0.452053] ACPI: EC: GPE storm detected, transactions will use polling mode
Jan 19 01:08:42 predtop kernel: [ 0.492310] ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62
Jan 19 01:08:42 predtop kernel: [ 0.492310] ACPI: EC: driver started in poll mode
----------------------------------

Looks like the fix works as advertised :)

[Nikolaj Sheller (nikolajsheller)]

"ACPI: EC: missing confirmations, switch off interrupt mode."
I'm still seeing this issue on a Macbook 2,1 with the 2.6.27.11 kernel on intrepid AMD 64.

This is the last thing logged before the computer freezes (unable to restart X, unable to SSH in via wireless network).

I'm not sure this is the cause of the freeze, but it is the last line logged.

[Erik Andrén (erik-andren)]

I can confim this bug. Also, this bug is still existing in 2.6.29-rc7 so there's a large probability that jaunty won't fix this automagically.

[Christian Stöveken (excogitation)]

Still shows in Jaunty

[ 74.404718] ACPI: EC: missing confirmations, switch off interrupt mode.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu jaunty (development branch)
Release: 9.04
Codename: jaunty
$ uname -a
Linux bored 2.6.28-11-generic #35-Ubuntu SMP Wed Mar 18 21:39:57 UTC 2009 i686 GNU/Linux

[Michael Adams (madams)]

I just tried upgrading the kernel on my Core2Duo router box to 2.6.30-rc1 using mainline debs: the ACPI errors seem to have stopped. Changelog in kernel confirms numerous ACPI fixes.

http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30-rc1/

[JrBenito (jrbenito)]

Hi,

I have several like these:

[ 1421.188064] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 1584.041014] CE: hpet increasing min_delta_ns to 15000 nsec
[ 2415.721771] NVRM : nv_acpi_nvif_method : NVIF data invalid. function d subFunction 0

My sytem:

Ubuntu 9.04
HP nv2225nr (Turion X2, 4gb, nvidia 6100)
Linux bisonho 2.6.28-12-generic #43-Ubuntu SMP Fri May 1 19:31:32 UTC 2009 x86_64 GNU/Linux

Regards,

[Andrea Piccinelli (frasten)]

I'm also affected by this issue on this setup:
Acer Aspire One D150
BIOS: 1.05 (latest)
uname -a: Linux yogsothoth 2.6.28-15-lpia #49-Ubuntu SMP Tue Aug 18 16:21:46 UTC 2009 i686 GNU/Linux
lsb_release -sd: Ubuntu 9.04

During boot sometimes it locks, and when pressing any key (Ctrl is enough) it continues. (this means that the OS waiting for an interrupt). However, after a couple of minutes, the system completely hangs, and I must brute-power-off it to recover from the crash.

The only way to boot is to enable "acpi=off" in /boot/grub/menu.lst, but this way there are other issues:
- Obviously no standby option, and you must hold down the power button on shutdown;
- No more bluetooth by pressing the BT key
- HOT temperature!!! I think it could be dangerous!
- no CPU frequency scaling, so the battery decharges fast
- Ctrl+S in any program doesn't work (!!! this made me laugh :-) )

I've also read on other bug reports that it should be a BIOS issue, that can be fixed by loading a custom DSDT file.

I attach some logs and my dsdt file.

[Ryan C. Underwood (nemesis-icequake)]

The ACPI error went away when I upgraded to 2.6.31-rc8, but the EC
interrupt mode is still switched off whenever I resume. Sometimes it is
accompanied by a "GPE interrupt storm" message.

--
Ryan C. Underwood, <email address hidden>

[tekstr1der (tekstr1der)]

Any progress on this? Still seeing this regularly in kern.log on Karmic beta with 2.6.31-14.

Usually is logged within a few moments of bootup. Though, I had one instance logged at just over one second into boot process.

[Zebra-Rake (faheyd)]

Why the hell does it two years to fix this stuff?
I'm seeing the same bug on my 64-bit 9.04 Ubuntu laptop right now.

[Mark Stosberg (markstos)]

On Tue, 19 Jan 2010 02:54:45 -0000
Zebra-Rake <email address hidden> wrote:

> Why the hell does it two years to fix this stuff?

You are right. It doesn't have to take so long. Perhaps you would like
to have a patch ready tomorrow or hire a developer to prepare one next
week? Your contribution would be welcome.

   Mark

[Ryan C. Underwood (nemesis-icequake)]

The best thing to do to get ACPI problems fixed is to file an ACPI bug at kernel.org.

[ziocane (mrc125)]

Acer aspire 5520G, ubuntu 9.10 - 64 bit

syslog.1:

Clocksource tsc unstable (delta = -102847190 ns)
[ 1354.492923] __ratelimit: 6 callbacks suppressed
[ 1354.492932] ACPI: EC: missing confirmations, switch off interrupt mode.
pulseaudio[1425]: ratelimit.c: 1 events suppressed
wpa_supplicant[1054]: CTRL-EVENT-SCAN-RESULTS

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.