Bug#660288: Please enable CONFIG_KALLSYMS_ALL
On Mon, Jun 04, 2012 at 05:26:28PM -0400, Tim Abbott wrote:
> Hi Ben,
>
> Your comment about source code is rather off-topic for this bug
> report, but since there seems to be a misunderstanding on this
> point, I'd like to clarify: Every Ksplice update tarball ships with
> a README file containing instructions on how to request the source
> code for that update from the appropriate people in Oracle Legal.
> Anyone who follows those instructions can get a copy of the relevant
> source code.
I understand that Matthew Garrett tried to take up this offer a while
ago, and is still waiting for complete source code. It doesn't seem
to be a good faith attempt to fulfil GPL obligations.
> To briefly clarify my original email, it is true that enabling
> CONFIG_KALLSYMS_ALL would make life slightly easier for Ksplice and
> similar tools that look at kernel data structures (e.g. debugging
> tools).
No doubt true, but it is also strictly redundant with debuginfo.
> That said, Ksplice doesn't require CONFIG_KALLSYMS_ALL --
> the Ksplice Uptrack service has been providing updates for systems
> running Debian Linux since 2009. While your enabling
> CONFIG_KALLSYMS_ALL might allow us to delete like 50 lines of code 2
> years from now when Squeeze reaches end of life, I submitted this
> bug report primarily because I'd like it to be the case that other
> folks developing similar innovative new technologies don't have to
> do the extra work of supporting !CONFIG_KALLSYMS_ALL in order to
> support all the major Linux distributions. I hope you'll consider
> my suggestion on its technical merits.
I'm going to have see a request from an actual other person before I
care to spend time on this.
(In case anyone else in the kernel team wants to proceed with this,
that's not a NAK. The issue is that memory and/or flash partition
constraints make this unsuitable for some configurations, and you'll
need to work out which ones to enable it for.)
Ben
--
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
- Albert Camus
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