diff options
author | Richard Braun <rbraun@sceen.net> | 2018-01-08 00:01:24 +0100 |
---|---|---|
committer | Richard Braun <rbraun@sceen.net> | 2018-01-08 00:01:24 +0100 |
commit | b56d4a2bf6de3aa96f0b37a4eb04d41d8b1ca2c4 (patch) | |
tree | 17de1a79e260c3f21f182ed0e318f369a1aba742 /test/test_xcall.c | |
parent | d63c9bbc67a60567b384e066583d5e5428a6ea1f (diff) |
test/test_xcall: update test description
Diffstat (limited to 'test/test_xcall.c')
-rw-r--r-- | test/test_xcall.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/test/test_xcall.c b/test/test_xcall.c index 49706cde..cd335947 100644 --- a/test/test_xcall.c +++ b/test/test_xcall.c @@ -92,8 +92,12 @@ test_run(void *arg) for (unsigned int i = 0; i < cpu_count(); i++) { /* - * FIXME There seems to be an initialization race of the local APIC when - * sending IPIs early from CPU 1 to CPU 2 or more. + * Send IPIs from CPU 1 first, in order to better trigger any + * initialization race that may prevent correct IPI transmission. + * This assumes CPUs are initialized sequentially, and that CPU 1 + * may have finished initialization much earlier than the last CPU. + * CPU 0 isn't used since it's the one normally initializing remote + * CPUs. */ cpu = (1 + i) % cpu_count(); |