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 patterns, a very early failure and a much delayed failure. It is the latter which seems to come with bad symptoms. I think, but cannot as yet confirm, I have physically experienced a couple of these where I was seeing command line file completion performing like treacle. Early failure: [ 29.278285] set status page addr 0x03a40000 [ 29.383407] NET: Registered protocol family 17 [ 73.779953] iwlagn: Radio Frequency Kill Switch is On: [ 73.779958] Kill switch must be turned off for wireless networking to work. [ 79.822055] ACPI: EC: missing confirmations, switch off interrupt mode. [ 79.863788] Registered led device: iwl-phy0:radio [ 79.864309] Registered led device: iwl-phy0:assoc [ 79.864652] Registered led device: iwl-phy0:RX [ 79.864981] Registered led device: iwl-phy0:TX Delayed failure: [ 253.496094] CE: hpet increasing min_delta_ns to 15000 nsec [ 379.496249] CE: hpet increasing min_delta_ns to 22500 nsec [ 627.504244] CE: hpet increasing min_delta_ns to 33750 nsec [ 2452.800027] __ratelimit: 3 callbacks suppressed [ 2452.800033] ACPI: EC: missing confirmations, switch off interrupt mode. [ 2453.312127] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609] [ 2453.312147] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.BAT0._BST] (Node ffff88013fa3d520), AE_TIME [ 2453.312209] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609] [ 3027.474273] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj. Looking back at the failure above, this is a battery state check. During this acpi call we timeout waiting for a confirmation message. We then switch to poll mode, which times out too returning ETIME. This triggers the AE_TIME error failing the call. So all of these errors seem to simply report this lack of response. For my delayed failures this __ratelimit prefix is always there. It is not clear what is being rate limited as we (sadly) do not include what is being limited in the report. The fact that it is always 3 callbacks being suppressed is somewhat suspicious. All of mine are related to battery requests as are many of those reported against this bug: [31017.340030] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609] [31017.340109] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609] [ 3714.289278] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609] [ 3714.289455] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609] [ 2453.312127] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609] [ 2453.312209] ACPI Exception (battery-0360): AE_TIME, Evaluating _BST [20080609] There is some suggestion that disk activity may be a trigger for this, though I have yet to determine a reproduce by. -- ACPI: EC: missing confirmations, switch off interrupt mode. https://bugs.launchpad.net/bugs/284263 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
