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Re: [Qemu-devel] Re: Extending virtio_console to support multiple ports
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] Re: Extending virtio_console to support multiple ports |
Date: |
Sat, 29 Aug 2009 02:15:17 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Alan Cox wrote:
> > - Then, are we certain that there's no case where the tty layer will
> > call us with some lock held or in an atomic context ? To be honest,
> > I've totally lost track of the locking rules in tty land lately so it
> > might well be ok, but something to verify.
>
> Some of the less well behaved line disciplines do this and always have
> done.
I had a backtrace in my kernel log recently which looked like that,
while doing PPP over Bluetooth RFCOMM. Resulted in AppArmor
complaining that it's hook was being called in irq context.
-- Jamie
- [Qemu-devel] [PATCH 1/3] char: Emit 'CLOSED' events on char device close, (continued)
- [Qemu-devel] [PATCH 3/3] virtio-console: Add interface for generic guest-host communication, Amit Shah, 2009/08/25
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/26
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/26
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Benjamin Herrenschmidt, 2009/08/27
- Re: [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/27
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Alan Cox, 2009/08/28
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Benjamin Herrenschmidt, 2009/08/27
- [Qemu-devel] [PATCH] hvc_console: provide (un)locked version for hvc_resize(), Hendrik Brueckner, 2009/08/28
- Re: [Qemu-devel] Re: Extending virtio_console to support multiple ports,
Jamie Lokier <=
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Michael Ellerman, 2009/08/28
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/27
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Ryan Arnold, 2009/08/28
[Qemu-devel] Re: Extending virtio_console to support multiple ports, Anthony Liguori, 2009/08/28
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/30
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Anthony Liguori, 2009/08/30
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/30
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Anthony Liguori, 2009/08/31
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Amit Shah, 2009/08/31
- [Qemu-devel] Re: Extending virtio_console to support multiple ports, Anthony Liguori, 2009/08/31