#include "tests.h" #include "machine.h" #include "thread.h" #include "map.h" #include "debug.h" int test__thread_mg_share(int subtest __maybe_unused) { struct machines machines; struct machine *machine; /* thread group */ struct thread *leader; struct thread *t1, *t2, *t3; struct map_groups *mg; /* other process */ struct thread *other, *other_leader; struct map_groups *other_mg; /* * This test create 2 processes abstractions (struct thread) * with several threads and checks they properly share and * maintain map groups info (struct map_groups). * * thread group (pid: 0, tids: 0, 1, 2, 3) * other group (pid: 4, tids: 4, 5) */ machines__init(&machines); machine = &machines.host; /* create process with 4 threads */ leader = machine__findnew_thread(machine, 0, 0); t1 = machine__findnew_thread(machine, 0, 1); t2 = machine__findnew_thread(machine, 0, 2); t3 = machine__findnew_thread(machine, 0, 3); /* and create 1 separated process, without thread leader */ other = machine__findnew_thread(machine, 4, 5); TEST_ASSERT_VAL("failed to create threads", leader && t1 && t2 && t3 && other); mg = leader->mg; TEST_ASSERT_EQUAL("wrong refcnt", atomic_read(&mg->refcnt), 4); /* test the map groups pointer is shared */ TEST_ASSERT_VAL("map groups don't match", mg == t1->mg); TEST_ASSERT_VAL("map groups don't match", mg == t2->mg); TEST_ASSERT_VAL("map groups don't match", mg == t3->mg); /* * Verify the other leader was created by previous call. * It should have shared map groups with no change in * refcnt. */ other_leader = machine__find_thread(machine, 4, 4); TEST_ASSERT_VAL("failed to find other leader", other_leader); /* * Ok, now that all the rbtree related operations were done, * lets remove all of them from there so that we can do the * refcounting tests. */ machine__remove_thread(machine, leader); machine__remove_thread(machine, t1); machine__remove_thread(machine, t2); machine__remove_thread(machine, t3); machine__remove_thread(machine, other); machine__remove_thread(machine, other_leader); other_mg = other->mg; TEST_ASSERT_EQUAL("wrong refcnt", atomic_read(&other_mg->refcnt), 2); TEST_ASSERT_VAL("map groups don't match", other_mg == other_leader->mg); /* release thread group */ thread__put(leader); TEST_ASSERT_EQUAL("wrong refcnt", atomic_read(&mg->refcnt), 3); thread__put(t1); TEST_ASSERT_EQUAL("wrong refcnt", atomic_read(&mg->refcnt), 2); thread__put(t2); TEST_ASSERT_EQUAL("wrong refcnt", atomic_read(&mg->refcnt), 1); thread__put(t3); /* release other group */ thread__put(other_leader); TEST_ASSERT_EQUAL("wrong refcnt", atomic_read(&other_mg->refcnt), 1); thread__put(other); machines__exit(&machines); return 0; } '10' name='q' value=''/>
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /sound/isa/es1688/Makefile
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'sound/isa/es1688/Makefile')