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SubjectRe: strange delays on console logouts (tty != 1)
On Sat, May 01, 2004 at 06:03:47PM -0700, Andrew Morton wrote:
> Petr Vandrovec <vandrove@vc.cvut.cz> wrote:
> >
> > (2) tty hangup is scheduled for work_queue.
>
> This is the problem, isn't it?
>
> >From what context is tty_hangup() invoked? (stick a dump_stack() in there>?)

From IRQ context. It's tty_vhangup() which is invoked from user context,
and calls do_tty_hangup() synchronously.

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
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