Messages in this thread | | | From | Vineet Gupta <> | Subject | [PATCH RESEND 0/5] ARC futex fixes | Date | Tue, 25 Aug 2015 13:02:20 +0530 |
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Hi Thomas/Peter,
Of late I've been debugging a seeming lost wakeup when running a specific EEMBC Multibench workload (4M-check -w4) on a quad core HS38 config on FPGA CONFIG_SMP, CONFIG_PREEMPT.
I've yet to nail that issue down, but in the process found some deficinecies in ARC futex backend. Can you please take a quick look and shout if there's something wrong there.
The futex backend for ARC, despite it's age, only recently started getting real testing due to recent switch to NPTL based userland (uClibc).
Thx, -Vineet
Vineet Gupta (5): ARC: add barriers to futex code ARC: futex cosmetics ARC: make futex_atomic_cmpxchg_inatomic() return bimodal ARC: Enable HAVE_FUTEX_CMPXCHG ARC: ensure futex ops are atomic in !LLSC config
arch/arc/Kconfig | 1 + arch/arc/include/asm/futex.h | 66 +++++++++++++++++++++++++++----------------- 2 files changed, 41 insertions(+), 26 deletions(-)
-- 1.9.1
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