Re: [LTP] [PATCH] sched/core: Use empty mask to reset cpumasks in sched_setaffinity()

From: Waiman Long
Date: Thu Jul 20 2023 - 22:14:48 EST


On 7/17/23 10:41, Cyril Hrubis wrote:
Hi!
Running tests.......
<<<test_start>>>
tag=sched_setaffinity01 stime=1689382567
cmdline="sched_setaffinity01"
contacts=""
analysis=exit
<<<test_output>>>
tst_test.c:1558: TINFO: Timeout per run is 0h 02m 30s
sched_setaffinity01.c:83: TPASS: sched_setaffinity() failed: EFAULT (14)
sched_setaffinity01.c:73: TFAIL: sched_setaffinity() succeded unexpectedly
tst_test.c:1612: TINFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
tst_test.c:1614: TBROK: Test killed! (timeout?)
So what the test does is that it sets empty affinity mask to
sched_setaffinity() and expects EINVAL. Instead it looks like the call
now succeeeds, the test stops getting schedulled and is killed by
timeout.

I had sent out a v2 patch should not fail the LTP's sched_setaffinity() test.

Cheers,
Longman