serial8250: too much work for irq73

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Hi List

I am running into issues , when using ttyS1 on a heavy loaded application. It trys to send and recieve around 60bytes every 100ms with 57600baud. There is a PIC Microcontroller attached on the otherside which immidiatly returns the data when requested.

After some hours , the kernel starts to flood with the above messages and the system gets into an unusable state.

i am running 2.6.35.9 ( released from isee.com ) on their Igep Module ( arch igep0030).

What would you guys do ? Anything i can provide you to help here ? Its really a major issue for us and showstopping an important release.

Thanks in advance for any help or suggestion

Regards Rob

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