Re: Oops with PREEMPT-RT on 184.108.40.206
From: Scott Wood
Date: Mon May 19 2008 - 17:38:20 EST
Rune Torgersen wrote:
Scott Wood wrote:
Almost certainly the latter. Is the disk interrupt shared with any
other interrupts, that are marked IRQF_NODELAY? The -rt
patch doesn't seem to handle mixing the two well.
Disk is on a muxed PCI interrupt. None of the other interrupts on the
mux is fireing at the time.
Regardless of whether they're firing, any request_irq with IRQF_NODELAY
will turn off threading for all handlers.
Is is possible that the demuxer is not set up right? It is based loosely
Try calling irq_set_chip_and_handler() with handle_level_irq, rather
than irq_set_chip(). The -rt patch doesn't seem to have threadified the
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/