Signed-off-by: Chen LinX
---
kernel/trace/ftrace.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5916a8e..00e7b9a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4406,10 +4406,10 @@ static __init int
From: "Chen, LinX"
Android framework has a good method to detect userspace hang and reports
UIWDT issues. It uses client/server model. Clients communicate with
servers by binder. binder has debugfs interfaces. Some files show what
threads are communicating with what other threads. If
From: "Chen, LinX"
When mount debugfs with no mode specifed after it's mounted, the mount
point mode will change to default mode(0700) even the mount operation was fail,
this will cause some issues like can't get binder info in android. Here we can
keep the old valid mode if
From: "Chen LinX"
ChangeLog V2: 1) Add more description about the race;
2) Format the email to use short lines.
When we run cpu hotplug test and below perf test at the same time,
kernel panic. pmu may access freed perf_event.
while true;
do
perf re
From: "Chen LinX"
when do cpu hotplug test and run below perf test together, pmu may access freed
perf_event
while true;
do
perf record -a -g -f sleep 10
rm perf.*
done
the scenario is that when cpu offline firstly, the 'perf_cpu_notify' will
disable event on the
pmu an
e
AP busy wait for it. At present, AP will wait for 2 seconds then panic.
This patch let AP waits for 60 seconds at maximum.
Signed-off-by: Yanmin Zhang
Signed-off-by: Chen LinX
---
arch/x86/kernel/smpboot.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/ke
From: Lin Chen
We hit a panic while doing cpu hotplug test.
<0>[ 627.982857] Kernel panic - not syncing: smp_callin: CPU1 started up but
did not get a callout!
<0>[ 627.982864]
<4>[ 627.982876] Pid: 0, comm: kworker/0:1 Tainted: G ...
<4>[ 627.982883] Call Trace:
<4>[ 627.982903] [] panic
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