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    SubjectRe: [PATCH 3/39] NLKD - early/late CPU up/down notification
    On Fri, 11 Nov 2005 08:52:38 +0100 Jan Beulich wrote:

    > >>> Sam Ravnborg <> 10.11.05 21:59:31 >>>
    > >> I understand that. But you don't see my point, so I'll try to
    > explain
    > >> the background: When discovering the reason for the kallsyms change
    > >> (also posted with the other NLKD patches) not functioning with
    > >> CONFIG_MODVERSIONS and binutils between 2.16.90 and I
    > >> realized that the warning messages from the modpost build stage are
    > very
    > >> easy to overlook (in fact, all reporters of the problem overlooked
    > them
    > >> as well as I did on the first build attempting to reproduce the
    > >> problem). This basically means these messages are almost useless,
    > and
    > >> detection of the problem will likely be deferred to the first
    > attempt to
    > >> load an offending module (which, as in the case named, may lead to
    > an
    > >> unusable kernel). Hence, at least until this build problem gets
    > >> addressed I continue to believe that adding the preprocessor
    > conditional
    > >> is the better way of dealing with potential issues.
    > >
    > >Can you elaborate a little what you like to have done to the build
    > >process.
    > As said above, I'd like to see the messages from modpost deferred or
    > re-issued at the end of the module building process (i.e. after the
    > perhaps hundreds of *.mod.c files got compiled and the same number of
    > *.ko got linked, which on a typical distribution will easily scroll off
    > the original warnings even with a 1000 line history, as seems to be the
    > default in many cases).

    Lots of such error or warning messages scroll away. All that it takes
    is use of egrep "foo|bar" to look for the interesting messages
    or egrep -v "foo|bar" to discard the uninteresting (normal) messages.
    I do that all the time and I think that it's the right thing to do,
    not have the tools regurgitate something that they have already said.

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