Vojtech Pavlik wrote:
> Well, the USB ACM driver does just tty_flip_buffer_push() from an
> interrupt, which I think is normal even for other drivers? Well, if not,
> I can change it ...
serial.c does that.
> Hmm, it also calls a tty->ldisc.write_wakeup from an interrupt. Might
> this be the cause?
Yes that's what I was thinking. ppp_async.c does some complicated
looking stuff in write_wakeup... including a kfree_skb(). That would
explain the message. That could just be changed to kfree_skb_any().
I really don't know if the rest of ppp_async_wakeup is irq safe, but it
does like it _might_ be.
-- Jamie
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