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From: Krzysztof Halasa <khc@pm.waw.pl>
To: khalasa@piap.pl (Krzysztof Hałasa)
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: 3.4.10 N_GSM tty_io WARNING and lockup
Date: Fri, 07 Sep 2012 14:59:26 +0200	[thread overview]
Message-ID: <m3sjauc7kh.fsf@intrepid.localdomain> (raw)
In-Reply-To: <m3627qt7kn.fsf@t19.piap.pl> ("Krzysztof =?utf-8?Q?Ha=C5=82as?= =?utf-8?Q?a=22's?= message of "Fri, 07 Sep 2012 13:07:20 +0200")

> In the meantime I've rebased to v3.5.3 and it started to work. Do you
> think it is worth it investigating v3.4.10 at this point?

BTW I'm not sure if it's a known bug: I closed the /dev/ttyS0 with
/dev/gsmmuxX still open, and then tried to set N_TTY ldisc on the
master device. It didn't work so well :-(

# killall -9 microcom	# they use /dev/gsmmux[0-3]
# killall -9 iru	# the program messing with ldiscs
# ps axf

  344 ?        Ss     0:00  \_ sshd: root@pts/1
  346 pts/1    Ss     0:00  |   \_ -sh
  405 pts/1    D+     0:00  |       \_ [microcom]
  347 ?        Ss     0:00  \_ sshd: root@pts/2
  349 pts/2    Ss     0:00  |   \_ -sh
  403 pts/2    D+     0:00  |       \_ [microcom]
  406 ?        Ss     0:00  \_ sshd: root@pts/3
  408 pts/3    Ss     0:00  |   \_ -sh
  412 pts/3    D+     0:00  |       \_ [microcom]
  409 ?        Ss     0:00  \_ sshd: root@pts/4
  411 pts/4    Ss     0:00      \_ -sh
  413 pts/4    D+     0:00          \_ [microcom]
  415 pts/0    D      0:00 iru
-- 
Krzysztof Halasa

  reply	other threads:[~2012-09-07 13:09 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-05 10:56 3.4.10 N_GSM tty_io WARNING and lockup Krzysztof Hałasa
2012-09-06 13:01 ` Alan Cox
2012-09-07 11:07   ` Krzysztof Hałasa
2012-09-07 12:59     ` Krzysztof Halasa [this message]
2012-09-07 13:29       ` Alan Cox
2012-09-07 16:14         ` Krzysztof Halasa

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