Re: [2.6] VC (keyboard) doesn't clean up its buffers

[Thunder Anklin]

Salut,

> tty->filp.char_buf  is filled  correctly by  my typings.  The buffer
> state goes  up, and once I've  typed 255 characters,  of course it's
> full.  *But*  the big  deal  with  the  keyboard buffer  is  usually
> somebody who's reading  out the contents and processing  it, so that
> the  characters  I  typed  are  processed.   This  is  *not*  taking
> place. The buffer just fills up and there we are.

I've explored  the kernel stack a  bit using SysRq hacks,  and I found
out that this misbehavior was in  fact caused by ISDN. It added a work
for  "isac_bh()" into  the CPU  workqueue with  list heads  inited, so
every time the work got executed, execution looped, and since ISDN was
loaded before  I typed the first character,  the flush_to_ldisc() work
was never run. I'm going to fix that bug soon.

				Thunder

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