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Dmitry Torokhov wrote: > Somehow you get 2 ACks in a row, I wonder if on your boxes i8042 > pumps command and data into keyboard before i8042_interrupt gets a > chance to run. Could you please apply the debug patch below and tell > me the pattern of the data flow. Yes, I believe the below trace confirms what you said? Both the ED and the 00/05 are sent before the first ACK gets back, by a 1 jiffie margin: drivers/input/serio/i8042.c: ed -> i8042 (panic blink) [N] drivers/input/serio/i8042.c: 05 -> i8042 (panic blink) [N + 2] drivers/input/serio/i8042.c: fa <- i8042 (interrupt, 0, 1) [N + 3] drivers/input/serio/i8042.c: fa <- i8042 (interrupt, 0, 1) [N + 6] drivers/input/serio/i8042.c: ed -> i8042 (panic blink) [M] drivers/input/serio/i8042.c: 00 -> i8042 (panic blink) [M + 2] drivers/input/serio/i8042.c: fa <- i8042 (interrupt, 0, 1) [M + 3] drivers/input/serio/i8042.c: fa <- i8042 (interrupt, 0, 1) [M + 6] The +2, +3 and +6 are constant. Forgot to pay attention to M - N, but I suppose it's not too important. For me, the patch as you posted it is actually good to go. No more spurious ACK complaints... Thanks, Rene. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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