Hello, Linus.
The cgroup2 freezer pulled in this cycle broke strace. This pull
request includes a workaround for the problem. It's not a complete
fix in that it may cause spurious frozen state flip-flops which is
fairly minor. Will push a full fix once it's ready.
Thanks.
The following changes since commit 8c05f3b965da14e7790711026b32cc10a4c06213:
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm (2019-05-16
09:41:54 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-5.2-fixes
for you to fetch changes up to 05b289263772b0698589abc47771264a685cd365:
signal: unconditionally leave the frozen state in ptrace_stop() (2019-05-16
10:43:58 -0700)
----------------------------------------------------------------
Roman Gushchin (1):
signal: unconditionally leave the frozen state in ptrace_stop()
kernel/signal.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/signal.c b/kernel/signal.c
index c4dd66436fc5..a1eb44dc9ff5 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2113,6 +2113,7 @@ static void ptrace_stop(int exit_code, int why, int
clear_code, kernel_siginfo_t
preempt_enable_no_resched();
cgroup_enter_frozen();
freezable_schedule();
+ cgroup_leave_frozen(true);
} else {
/*
* By the time we got the lock, our tracer went away.
--
tejun
