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Re: [Qemu-devel] [PATCH] monitor: Add port write command
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] [PATCH] monitor: Add port write command |
Date: |
Wed, 15 Jul 2009 14:12:22 +0300 |
On Wed, Jul 15, 2009 at 11:14:20AM +0100, Paul Brook wrote:
> > > I'd be reluctant to expose the savevm state to the user.
> > >
> > > For debugging qemu I don't see it providing any real benefit over firing
> > > up GDB and poking directly at the device directly.
> >
> > Not all environments where you need to debug things have gdb, qemu
> > sources or even non striped qemu binary.
>
> If you don't have qemu sources than I really don't care. By definition you're
I noticed that you don't care, but I do.
> not going to be able to do anything useful even if you do figure out what the
> problem is. Note that there's no requirement that you run gdb on the target
I will be able to fix the bug if I'll figuring out what the problem is,
so I don't see how this is not useful.
> itself. Remote debug (e.g. via gdbserver on linux) is a well established
> technique.
>
Client will not allow me near his infrastructure, he is nice enough to
dump device state for me if it's simple.
> Likewise for debugging stripped production binaries, my answer is "don't do
> that". There are very rare cases where a bug goes away on a debug build, but
> in those cases any instrumentation you add is also liable to make the bug go
> away.
>
Have you sees a real production environment and tried to resolve real
customer bugs? Just asking.
--
Gleb.
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, (continued)
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Anthony Liguori, 2009/07/14
- Message not available
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Blue Swirl, 2009/07/14
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Paul Brook, 2009/07/14
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Gleb Natapov, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Paul Brook, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Jan Kiszka, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Gleb Natapov, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command,
Gleb Natapov <=
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Anthony Liguori, 2009/07/15
- Re: [Qemu-devel] [PATCH] monitor: Add port write command, Paul Brook, 2009/07/15