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From: Mark Wielaard <mjw@redhat.com>
To: elfutils-devel@lists.fedorahosted.org
Subject: Re: [patch] Fix resolving ELF symbols for live PIDs with deleted files
Date: Fri, 29 Aug 2014 22:44:58 +0200
Message-ID: <20140829204458.GA31660@blokker.redhat.com>
In-Reply-To: 20140829201550.GA1979@host2.jankratochvil.net

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On Fri, Aug 29, 2014 at 10:15:50PM +0200, Jan Kratochvil wrote:
> On Fri, 29 Aug 2014 11:55:32 +0200, Mark Wielaard wrote:
> > I don't think this check is needed. eu-stack needs to be attached to get
> > the register values and dwfl_linux_proc_find_elf makes sure the process
> > is attached before calling elf_from_remote_memory.
> =

> When I remove the check on 2.6.32 (tested on kernel-2.6.32-431.el6.x86_64=
) the
> testcase really FAILs:
> 	.../elfutils/src/stack: dwfl_thread_getframes tid 26376 at 0x4006c8 in .=
../elfutils/tests/deleted: no matching address range
> =

> I can debug it further but I guess at least this patch could go in as is =
(with
> the kernel check).

O, interesting. Thanks for checking. Yes, please check it in with the
check then. And please file a bug so we won't forget to investigate.

Thanks,

Mark

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