* Timer and APIC problems on x86_64 with 2.6.7
@ 2004-06-28 21:25 J. Ryan Earl
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From: J. Ryan Earl @ 2004-06-28 21:25 UTC (permalink / raw)
To: discuss; +Cc: linux-kernel
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Though 2.6.7 defaults to using APIC, I still get the following with it
turned on from a Via K8T800 chipset:
Jun 27 21:55:29 palace hda: dma_timer_expiry: dma status == 0x24
Jun 27 21:55:39 palace hda: DMA interrupt recovery
Jun 27 21:55:39 palace hda: lost interrupt
Jun 27 21:57:50 palace hdc: dma_timer_expiry: dma status == 0x24
Jun 27 21:58:00 palace hdc: DMA interrupt recovery
I also saw the following new errors:
Jun 28 03:18:27 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:27 palace warning: many lost ticks.
Jun 28 03:18:27 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:27 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:30 palace warning: many lost ticks.
Jun 28 03:18:30 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:30 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:30 palace warning: many lost ticks.
Jun 28 03:18:30 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:30 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:31 palace warning: many lost ticks.
Jun 28 03:18:31 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:31 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:31 palace warning: many lost ticks.
Jun 28 03:18:31 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:31 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:32 palace warning: many lost ticks.
Jun 28 03:18:32 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:32 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:32 palace warning: many lost ticks.
Jun 28 03:18:32 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:32 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:33 palace warning: many lost ticks.
Jun 28 03:18:33 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:33 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:33 palace warning: many lost ticks.
Jun 28 03:18:33 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:33 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:35 palace warning: many lost ticks.
Jun 28 03:18:35 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:35 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:35 palace warning: many lost ticks.
Jun 28 03:18:35 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:35 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:38 palace warning: many lost ticks.
Jun 28 03:18:38 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:38 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:38 palace warning: many lost ticks.
Jun 28 03:18:38 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:38 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:38 palace warning: many lost ticks.
Jun 28 03:18:38 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:38 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:38 palace warning: many lost ticks.
Jun 28 03:18:38 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:40 palace warning: many lost ticks.
Jun 28 03:18:40 palace Your time source seems to be instable or some
driver is hogging interupts
Jun 28 03:18:40 palace Losing some ticks... checking if CPU frequency
changed.
Jun 28 03:18:40 palace warning: many lost ticks.
Jun 28 03:18:40 palace Your time source seems to be instable or some
driver is hogging interupts
I rebooted with "noapic" on the kernel and haven't seen this
again...yet... Attaching a small (1KB) .png of CPU usage, notice the
system time spike around 3:18AM? This is a 2.6.7 kernel with the
x86_64-2.6.7-2 patchset.
-ryan
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2004-06-28 21:25 Timer and APIC problems on x86_64 with 2.6.7 J. Ryan Earl
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