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Subjectpsaux affects lowlatency-2.2.13-A1
Further investigation into excessive scheduling latency reveals
that when switching from X to a virtual terminal and back causes
the ps2 mouse (in my case) to be written via aux_write_dev which
disables interrupts for about 3 msec. The rtc_interrupt is
held off until interrupts are enabled.

This seems like a long time to have interrupts disabled, does
anyone know of a safe alternative?


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