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Date: Tue, 28 Jun 2011 12:09:00 -0000
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Hui Zhu <teawater@gmail.com>
Cc: Yao Qi <yao@codesourcery.com>,	Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>, gdb@sourceware.org,	linux-arm-kernel@lists.infradead.org,	Eric Miao <eric.y.miao@gmail.com>
Subject: Re: Problem with GDB when debugging IRQ handlers
Message-ID: <20110628120928.GD21898@n2100.arm.linux.org.uk>
References: <20110627125306.GA30646@doriath.ww600.siemens.net> <20110627132735.GE16103@n2100.arm.linux.org.uk> <4E088DE1.2060809@gmail.com> <4E089AB3.1090801@codesourcery.com> <20110628103946.GC21898@n2100.arm.linux.org.uk> <BANLkTi=zjTerne0VbYq-6NaPBuXcZBDGjA@mail.gmail.com>
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On Tue, Jun 28, 2011 at 08:06:27PM +0800, Hui Zhu wrote:
> If this kernel didn't open FRAME_POINTER, what will happen?

I can't answer that question directly, as I don't use a toolchain new
enough to generate proper unwind information.

However, I haven't seen any problems being reported on the list with
bad/broken backtraces from the kernel, so my _assumption_ is that the
kernel is fine with its own debug info.