* Problem with multiple hvc consoles via virtio-console
@ 2010-03-24 15:34 Amit Shah
2010-03-26 5:01 ` Amit Shah
0 siblings, 1 reply; 2+ messages in thread
From: Amit Shah @ 2010-03-24 15:34 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linuxppc-dev, Virtualization List
Hello,
When multiple hvc console ports are initialised and used via the
virtio_console driver, I can interact with only the first console, the
2nd one doesn't respond.
If I call hvc_kick() even if hvc_poll() returns 0, the 2nd console
becomes responsive.
I've checked that hvc_poll() receives data via get_chars() and feeds it
to tty_insert_flip_char().
Any idea what could be going wrong? This is reproducible on Linus' git
kernel as the guest kernel with the qemu.git repo.
Any pointers?
Thanks,
Amit
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Problem with multiple hvc consoles via virtio-console
2010-03-24 15:34 Problem with multiple hvc consoles via virtio-console Amit Shah
@ 2010-03-26 5:01 ` Amit Shah
0 siblings, 0 replies; 2+ messages in thread
From: Amit Shah @ 2010-03-26 5:01 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linuxppc-dev, linux-kernel, Virtualization List
On (Wed) Mar 24 2010 [21:04:08], Amit Shah wrote:
> Hello,
>
> When multiple hvc console ports are initialised and used via the
> virtio_console driver, I can interact with only the first console, the
> 2nd one doesn't respond.
>
> If I call hvc_kick() even if hvc_poll() returns 0, the 2nd console
> becomes responsive.
Actually it's not that fancy: if I login to the first console (hvc0) and
then spawn another one (hvc1), I can't login into hvc1. If I spawn hvc1
before logging into hvc0, I can work with both.
Amit
^ permalink raw reply [flat|nested] 2+ messages in thread
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