Re: Need help fixing an unhandled irq

Subject: Re: Need help fixing an unhandled irq

From: Henrique de Moraes Holschuh <hmh@debian.org>

Date: Mon, 11 May 2015 08:29:55 -0300

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On Thu, Apr 23, 2015, at 09:59, Kynn Jones wrote:

I did boot with irqpoll, and indeed the unhandled interrupt does not occur, but my understanding is that the irqpoll option is a temporary measure (maybe to get past anotherwise fatal unhandled interrupt), but not a permanent fix. (Because it is inefficient for the kernel to perform such polling? I'm not sure.)

I have not tried the upgrade kernel from backport. I'll give that a shot. Thanks!

IRQ handling is broken and not to be trusted in the current Jessie 3.16 kernel :-(

Please file a bug report. People will need further details to track it down.

FWIW, the latest 3.18 longterm kernel from kernel.org fixed all IRQ issues I was experiencing in Jessie's 3.16 kernel. I didn't try the latest 3.16-ckt kernel from the Canonical kernel team (which is the upstream of Jessie's kernel), though.

"One disk to rule them all, One disk to find them. One disk to bring

them all and in the darkness grind them. In the Land of Redmond

where the shadows lie." -- The Silicon Valley Tarot

Henrique de Moraes Holschuh <hmh@debian.org>

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