Re: Missing some interrupts
From: Jon Smirl <hidden>
Date: 2009-06-06 13:34:40
On Sat, Jun 6, 2009 at 9:17 AM, wael showair[off-list ref] wrote:
Hi All, i have a freescale board, that contains MPC8555 processor & DSP-core there is a GPIO connecting the DSP-core into an input pin of the OpenPIC of the MPC8555 processor. i test one interrupt from the DSP-core to the MPC8555 processor where i configure this interrupt line to be edge-triggered (falling edge) & i receive it successfully but when i generate this interrupt 10 successive times using for loop i just receive 2 interrupts? why can't i receive the 8 other interrupts? i print the value of every irq number inside do_IRQ & i found that i receive the DSP-interrupt just only twice. do u have any suggestions to solve this problem? i want to make sure that i can receive 10 interrupts
Don't do a printk() with interrupts disabled. A printk() takes 1.5ms on a mpc5200.
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