Christoph Hellwig wrote:
> On Mon, Jun 22, 2009 at 01:01:35PM -0500, Felix Blyakher wrote:
>>> To use it make sure CONFIG_EVENT_TRACING is enabled and then enable
>>> xfs trace channels by:
>>> echo 1 > /sys/kernel/debug/tracing/events/xfs/enable
>> Does event tracing work on ia64 platform?
>> I spent some time on it over weekend, but was not able even
>> to force "CONFIG_EVENT_TRACING=y" setting in the .config.
>> Seems to build ok on x86_64, which does have CONFIG_TRACING
>> in defconfig, and allows to set CONFIG_EVENT_TRACING.
> IA64 ftrace support was added earlier this year, but it seems it can't
> be enabled anymore since the big config option reshuffle. Now tracing
> support requires the architecture to define the TRACE_IRQFLAGS_SUPPORT
> and STACKTRACE_SUPPORT symbols, which seems to be missing on ia64.
Where are we at with this one, I'd like to get this in for XFS but I
agree w/ Felix that throwing out a "working" trace infrastructure w/
nothing to replace it on ia64 would not be great.
Is this just config confusion, or is the functionality actually missing