From: Vojtech Pavlik <vojtech@ucw.cz>
To: Michael Frank <mflt1@micrologica.com.hk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.21-rc7 hang on boot after spurious 8259A interrupt: IRQ15.
Date: Fri, 13 Jun 2003 21:48:32 +0200 [thread overview]
Message-ID: <20030613214832.A6366@ucw.cz> (raw)
In-Reply-To: <200306130958.39707.mflt1@micrologica.com.hk>; from mflt1@micrologica.com.hk on Fri, Jun 13, 2003 at 11:36:36AM +0800
On Fri, Jun 13, 2003 at 11:36:36AM +0800, Michael Frank wrote:
> Doing swsusp testing in endless loop. On a P4/2.4G (ACPI=off)
> on 192nd boot:
>
> spurious 8259A interrupt: IRQ15.
> Calibrating delay loop...
It looks like the IDE code didn't put the controller into sleep
properly.
> hang
>
> Hit Reset and it rebooted OK
>
> This is the first spurious 8259A interrupt: IRQ15 seen.
>
> I see spurious 8259A interrupt: IRQ7 quite frequently on
> varying hardware on both 2.4 and 2.5.
>
> By design, the 8259A delivers a vector 7 when the IRQ
> line is deasserted before the IRQ is serviced. This
> applies to both edge and level trigger modes. A floating
> "wire" or crapy chipset can pickup noise, but the driver
> should handle it.
>
> No problems seen with mainboard/cpu/ram in three months.
> I dont' think it is HW, but it could be.
>
> Also, spurious 8259A interrupts are quite recent, could
> something be wrong with recent 8259A driver?
>
> Regards
> Michael
>
> I am not subscribed, pls cc me
>
> --
> Powered by linux-2.5.70-mm3, compiled with gcc-2.95-3
>
> My current linux related activities in rough order of priority:
> - Testing of 2.4/2.5 kernel interactivity
> - Testing of Swsusp for 2.4
> - Testing of Opera 7.11 emphasizing interactivity
> - Research of NFS i/o errors during transfer 2.4>2.5
> - Learning 2.5 series kernel debugging with kgdb - it's in the -mm tree
> - Studying 2.5 series serial and ide drivers, ACPI, S3
> * Input and feedback is always welcome *
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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--
Vojtech Pavlik
SuSE Labs, SuSE CR
next prev parent reply other threads:[~2003-06-13 19:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-13 3:36 2.4.21-rc7 hang on boot after spurious 8259A interrupt: IRQ15 Michael Frank
2003-06-13 19:48 ` Vojtech Pavlik [this message]
2003-06-14 3:24 ` Michael Frank
2003-06-14 8:17 ` Alan Cox
2003-06-14 8:57 ` Michael Frank
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