Messages in this thread | | | Date | Thu, 7 Oct 2004 08:26:22 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Re: Probable module bug in linux-2.6.5-1.358 |
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On Thu, 7 Oct 2004, Arjan van de Ven wrote:
> On Thu, Oct 07, 2004 at 08:01:47AM -0400, Richard B. Johnson wrote: >> Also, when this driver is running, transferring large volumes >> of data, the kernel decides that there have been too many interrupts, and >> does: >> >> Message from syslogd@chaos at Wed Oct 6 21:22:57 2004 ... >> chaos kernel: Disabling IRQ #18 >> >> This, in spite of the fact that interrupts occur only when >> DMA completion happens and new data are available, i.e., >> one interrupt every 16 megabytes of data transferred. >> >> Who decided that it had a right to disable my interrupt???? > > the kernel did because you don't return the proper value for "I handled the > IRQ" from your ISR.
Do you know what that value is? I can't find it. I just returned 0 and it worked for awhile.
> > Also I don't see where you call cleanup_module(), the function that does the > deregistration of the chardev... where do you call that ???? >
The kernel calls cleanup_module() and the printk() shows that it was truly called.
Cheers, Dick Johnson Penguin : Linux version 2.6.5-1.358-noreg on an i686 machine (5537.79 BogoMips). Note 96.31% of all statistics are fiction.
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