Hi, So here is a respin after the discussion we had, plus some more goodies: * 1st patch is a short term pure regression fixe, with stable tag etc... * 2nd patch now also generalize the softirq_count() check * 4th improve debugging (just hope I did not mistake the !in_interrupt() assumption in __do_softirq() * more comments * introduction of a longer term solution via a new arch symbol for archs to tell about irq_exit() stack coverage. Thanks. Frederic Weisbecker (7): irq: Force hardirq exit's softirq processing on its own stack irq: Consolidate do_softirq() arch overriden implementations irq: Optimize call to softirq on hardirq exit irq: Improve a bit softirq debugging irq: Justify the various softirq stack choices irq: Optimize softirq stack selection in irq exit x86: Tell about irq stack coverage arch/metag/kernel/irq.c | 52 ++++++++++++++++-------------------------- arch/parisc/kernel/irq.c | 17 ++------------ arch/powerpc/kernel/irq.c | 17 +------------- arch/s390/kernel/irq.c | 52 +++++++++++++++++------------------------- arch/sh/kernel/irq.c | 57 +++++++++++++++++----------------------------- arch/sparc/kernel/irq_64.c | 31 ++++++++----------------- arch/x86/include/asm/irq.h | 4 ++++ arch/x86/kernel/entry_64.S | 4 ++-- arch/x86/kernel/irq_32.c | 30 +++++++----------------- arch/x86/kernel/irq_64.c | 21 ----------------- include/linux/interrupt.h | 11 +++++++++ kernel/softirq.c | 40 ++++++++++++++++++++++++-------- 12 files changed, 130 insertions(+), 206 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html