On Tue, Jul 16, 2019 at 08:18:39PM +0530, Naresh Kamboju wrote:
Just want to share information here on what we notice on running this test case,
Thank you for the report!
The interaction between ptrace and freezer is complicated (as ptrace in general),so there are known cases when spurious cgroup transitions (frozen <-> non frozen <-> frozen ) can happen.
Does it create any difficulties? If so, I'll send a diff to ignore the result of this test for now.
On Fri, 5 Apr 2019 at 23:17, Roman Gushchin firstname.lastname@example.org wrote:
This patch implements 9 tests for the freezer controller for cgroup v2:
- ptrace test: the test checks that it's possible to attach to
a process in a frozen cgroup, get some information and detach, and the cgroup will remain frozen.
selftests cgroup test_freezer failed because of the sys entry path not found.
Can you, please, elaborate on this?
Cgroup /sys/fs/cgroup/unified/cg_test_ptrace isn't frozen /sys/fs/cgroup/unified/cg_test_ptrace: isn't_frozen # # not ok 6 test_cgfreezer_ptrace
This test case fails intermittently.