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From: shmera@gmail.com (Ramesh Rajagopal)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Fwd: register_console is getting stuck in acquire_console_sem()
Date: Fri, 8 Feb 2013 17:13:50 +0530	[thread overview]
Message-ID: <CAF0w+pXQigddWNHsAOMyhGbnd-4VJWYWqH6iaCKjYdpctufmng@mail.gmail.com> (raw)
In-Reply-To: <CAF0w+pVW8d94+pmKL10JvAajbonweJOPOM3Q3Uq6fyt_jz=byA@mail.gmail.com>

---------- Forwarded message ----------
From: Ramesh Rajagopal <shmera@gmail.com>
Date: Fri, Feb 8, 2013 at 5:12 PM
Subject: register_console is getting stuck in acquire_console_sem()
To: kernelnewbies at nl.linux.org, majordomo at vger.kernel.org


I am working on 2.6.35.7-02894-g0482b09-dirty this kernel.

I am trying to use g_serial as console(gadget serial). For that I am
calling register_console() from gserial_setup() function.
But this is getting stuck at acquire_console_sem(). When I printed
semaphore count it is infact 1, but internally it is
getting stuck at down() function spin lock(). Any idea what it could be ?

I have patch which enables gserial as console.

I want to get the kernel prints on USB port(don't have uart on our board).


Regards,
Ramesh.
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