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    SubjectRe: [PATCH] kmemleak: config-options: Default buffer size for kmemleak
    On Tue, Jun 22, 2010 at 01:05:51PM +0100, Catalin Marinas wrote:
    > On Tue, 2010-06-22 at 12:31 +0100, Paul Mundt wrote:
    > > On Tue, Jun 22, 2010 at 02:16:43PM +0530, Sankar P wrote:
    > > > If we try to find the memory leaks in kernel that is
    > > > compiled with 'make defconfig', the default buffer size
    > > > of DEBUG_KMEMLEAK_EARLY_LOG_SIZE seem to be inadequate.
    > > >
    > > > Change the buffer size from 400 to 1000,
    > > > which is sufficient for most cases.
    > > >
    > > Or you could just bump it up in your config where you seem to be hitting
    > > this problem. The default of 400 is sufficient for most people, so
    > > bloating it up for a corner case seems a bit premature. Perhaps
    > > eventually we'll have no choice and have to tolerate the bloat, as we did
    > > with LOG_BUF_SHIFT, but it's not obvious that we've hit that point with
    > > kmemleak yet.
    > I agree. The 400 seems to be sufficient with standard kernel
    > configurations (I usually try some of the Ubuntu configs on x86). The
    > error message is hopefully clear enough about what needs to be changed.
    > The defconfig change for this specific platform may be a better option
    > but I thought defconfigs are to provide a stable (and maybe close to
    > optimal) configuration without all the debugging features enabled
    > (especially those slowing things down considerably).
    I would be fine with that, but I don't see any correlation between the
    posted dmesg and the defconfig? I've run the config in question without
    hitting problems, so I'm a bit confused as to why that particular config
    was singled out.

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