#! /usr/bin/python # -*- python -*- # -*- coding: utf-8 -*- import perf class tracepoint(perf.evsel): def __init__(self, sys, name): config = perf.tracepoint(sys, name) perf.evsel.__init__(self, type = perf.TYPE_TRACEPOINT, config = config, freq = 0, sample_period = 1, wakeup_events = 1, sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_RAW | perf.SAMPLE_TIME) def main(): tp = tracepoint("sched", "sched_switch") cpus = perf.cpu_map() threads = perf.thread_map(-1) evlist = perf.evlist(cpus, threads) evlist.add(tp) evlist.open() evlist.mmap() while True: evlist.poll(timeout = -1) for cpu in cpus: event = evlist.read_on_cpu(cpu) if not event: continue if not isinstance(event, perf.sample_event): continue print "time %u prev_comm=%s prev_pid=%d prev_prio=%d prev_state=0x%x ==> next_comm=%s next_pid=%d next_prio=%d" % ( event.sample_time, event.prev_comm, event.prev_pid, event.prev_prio, event.prev_state, event.next_comm, event.next_pid, event.next_prio) if __name__ == '__main__': main() td>Tobias Klauser
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authorRuslan Ruslichenko <rruslich@cisco.com>2017-01-17 16:13:52 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-01-18 15:37:28 +0100
commit020eb3daaba2857b32c4cf4c82f503d6a00a67de (patch)
tree329a05b424d783db675a4c711bd7633575e8181b /net/rxrpc/conn_client.c
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
x86/ioapic: Restore IO-APIC irq_chip retrigger callback
commit d32932d02e18 removed the irq_retrigger callback from the IO-APIC chip and did not add it to the new IO-APIC-IR irq chip. Unfortunately the software resend fallback is not enabled on X86, so edge interrupts which are received during the lazy disabled state of the interrupt line are not retriggered and therefor lost. Restore the callbacks. [ tglx: Massaged changelog ] Fixes: d32932d02e18 ("x86/irq: Convert IOAPIC to use hierarchical irqdomain interfaces") Signed-off-by: Ruslan Ruslichenko <rruslich@cisco.com> Cc: xe-linux-external@cisco.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484662432-13580-1-git-send-email-rruslich@cisco.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net/rxrpc/conn_client.c')