Messages in this thread | | | Subject | RE: [BUG][2.6.8.1] serial driver hangs SMP kernel, but not the UPkernel | Date | Mon, 10 Jan 2005 14:36:01 -0600 | From | <> |
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Thanks for your comments and advice, I am new to the kernel and appreciate your taking the time.
> Presumably this is a device with a fake 8250 that > produces sudden large bursts of data ? If so then > for now you -need- to set low_latency and should > probably do it by the PCI vendor subid/device id. > The problem is that the serial layer expects serial > data arriving at serial speeds. It completely breaks > down when it hits an emulation of a generic uart that > suddenely receives 32Kbytes of data at ethernet speed.
Yes. Thanks, this confirms what I suspected.
> The longer term fix for this is when the flip buffers > go away, and the same problem gets cleaned up for > things like mainframes and some high performance DMA > devices.
Is this, or a short-term fix, expected anytime soon?
Problem for me is that my application no longer works with the 2.6 kernels, since it relies on the kernel's serial support -- which worked fine with 2.4 kernels.
If there's anything I can do to expedite a fix please let me know -- I've spent the past few days learning and working with the code, but I obviously have a ways to go before I sleep..
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