From: Dag Nygren <dag@newtech.fi>
To: linux-kernel@vger.kernel.org
Subject: Linediscipline behaviour
Date: Sat, 29 Sep 2001 15:50:00 +0300 [thread overview]
Message-ID: <20010929125000.29614.qmail@dag.newtech.fi> (raw)
Hi,
Just checked out why my pppd hangs on exit
when the device is connected through USB
and found out that the reason was that the
code tried to change the linediscipline back
to what it was before ppd and that the ioctl()
hangs if the device doesn't exist any more as
the USB device has disappeared at that point.
Shouldn't the ioctl(TIOCSETD) return a ENODEV
instead of hanging ?
The previous tcflush() does indeed do that and the
problem was then avoidable, but I think I just
fixed the symptoms, not the disease....
BRGDS
--
Dag Nygren email: dag@newtech.fi
Oy Espoon NewTech Ab phone: +358 9 8024910
Träsktorpet 3 fax: +358 9 8024916
02360 ESBO Mobile: +358 400 426312
FINLAND
reply other threads:[~2001-09-29 12:49 UTC|newest]
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