[PATCH] powerpc/xmon: Fix disabling tracing while in xmon

Michael Ellerman patch-notifications at ellerman.id.au
Thu Jul 4 00:27:08 AEST 2019

On Thu, 2019-06-27 at 09:59:40 UTC, "Naveen N. Rao" wrote:
> Commit ed49f7fd6438d ("powerpc/xmon: Disable tracing when entering
> xmon") added code to disable recording trace entries while in xmon. The
> commit introduced a variable 'tracing_enabled' to record if tracing was
> enabled on xmon entry, and used this to conditionally enable tracing
> during exit from xmon.
> However, we are not checking the value of 'fromipi' variable in
> xmon_core() when setting 'tracing_enabled'. Due to this, when secondary
> cpus enter xmon, they will see tracing as being disabled already and
> tracing won't be re-enabled on exit. Fix the same.
> Fixes: ed49f7fd6438d ("powerpc/xmon: Disable tracing when entering xmon")
> Signed-off-by: Naveen N. Rao <naveen.n.rao at linux.vnet.ibm.com>

Applied to powerpc next, thanks.



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