Messages in this thread | | | Date | Mon, 17 Feb 2003 14:14:43 -0800 | From | Simon Kirby <> | Subject | [2.4.21-pre4] IDE hangs box after timeout |
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Hello,
I don't think this happened on older kernels (< 2.4.18ish), but it may have happened on 2.4.20 (though I have other problems with 2.4.20 on this box that makes testing more difficult -- it tends to Oops fairly often).
Anyway, this box has a massive collection of old (and new) drives to make a large storage area, using MD linear. The box has two SCSI cards, two promise cards (PDC20269), and onboard IDE (PIIX4). Because the box has so many drives, I had to use a number of power splitters which are, of course, cheap and thus unreliable, and occasionally a few drives will fall off of the bus. This is the real problem, yes, but it seems to be triggering a lockup bug in 2.4.21-pre4. When hda falls off the bus due to power loss, I see this on the console:
hda: dma_timer_expiry: dma status == 0x21 hda: timeout waiting for DMA hda: timeout waiting for DMA hda: (__ide_dma_test_irq) called while not waiting
...followed by a complete lockup where sysreq does not appear to work.
dmesg and config available here:
http://blue.netnation.com/sim/ref/alfie.dmesg http://blue.netnation.com/sim/ref/alfie.config
( Yes, a new power supply is on order. :) )
Simon-
[ Simon Kirby ][ Network Operations ] [ sim@netnation.com ][ NetNation Communications ] [ Opinions expressed are not necessarily those of my employer. ] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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