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Message-ID: <13160.1188732778@nice> Date: Sun, 02 Sep 2007 13:32:58 +0200 From: Raphael Manfredi <Raphael_Manfredi@...ox.com> To: linux-kernel@...r.kernel.org Subject: [2.6.22.5] Machine freeze when smartd launches long scans The last messages I have on the netconsole are: hda: lost interrupt hda: dma_timer_expiry: dma status == 0x61 hda: DMA timeout error After that, the machine no longer responds to pings, the keyboard is non-responsive (so I could not see what the local console said, as my X session had blanked the screen, and ctrl-F1 has no effect). There was no OOPS logged despite the NMI watchdog running. The funny thing is that when I launch: smartctl -t long /dev/hda myself, everything goes fine and the test completes. It's only when the tests are launched every Sunday morning by smartd that the machine freezes. This has been happening with 2.6.22.1 and 2.6.22.5 for the last 4 weeks. Before that, I was running 2.4.31 and everything was just fine, never got a hang. I don't think the hardware is at fault (I tried changing the disk, same thing), and the fact that the machine freezes after a single DMA timeout error is not normal. I'm running an SMP version on a P4 with hyper-threading. Any idea of what could be wrong in the IDE timeout error recovery? Raphael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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