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Re: [regression] linux318, linux41 - kernel stack is corrupted

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On Fri, 2016-04-22 at 17:23 +0900, Greg Kroah-Hartman wrote:
> On Fri, Apr 22, 2016 at 10:10:59AM +0200, Sebastian M. Bobrecki wrote:
> > W dniu 22.04.2016 o 09:55, Greg Kroah-Hartman pisze:
> > > On Fri, Apr 22, 2016 at 09:47:04AM +0200, Sebastian M. Bobrecki wrote:
> > > > Hi,
> > > > 
> > > > I just hit the same with 4.1.22 on Gentoo. 4.1.21 are working fine.
> > > > 
> > > > On 22.04.2016 at 08:46, Greg Kroah-Hartman wrote:
> > > > > ...
> > > > > You are going to have to be a bit more specific here...
> > > > > What is the oops message?  How do you reproduce this?  Does it also
> > > > > happen on 4.6-rc4?
> > > > > 
> > > > > Can you run 'git bisect' to find the offending patch?
> > > > > 
> > > > Greg have you seen screenshots linked by Philip?
> > > I saw no such screenshots in the email.
> > They are here: https://github.com/manjaro/packages-core/issues/36
> 
> Looks like an acpi thermal patch got backported incorrectly, again, 'git
> bisect' is going to help out the best here.

That'll work, but requires repeatedly ignoring the big-fat-warning :)

Backport of 81ad4276b505e987dd8ebbdf63605f92cd172b52 failed to adjust
for intervening ->get_trip_temp() argument type change, thus causing
stack protector to panic.

drivers/thermal/thermal_core.c: In function ‘thermal_zone_device_register’:
drivers/thermal/thermal_core.c:1569:41: warning: passing argument 3 of
‘tz->ops->get_trip_temp’ from incompatible pointer type [-Wincompatible-pointer-types]
   if (tz->ops->get_trip_temp(tz, count, &trip_temp))
                                         ^
drivers/thermal/thermal_core.c:1569:41: note: expected ‘long unsigned int *’
but argument is of type ‘int *’

CC: <stable@vger.kernel.org> #3.18,#4.1
Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
---
 drivers/thermal/thermal_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1491,7 +1491,7 @@ struct thermal_zone_device *thermal_zone
 {
 	struct thermal_zone_device *tz;
 	enum thermal_trip_type trip_type;
-	int trip_temp;
+	unsigned long trip_temp;
 	int result;
 	int count;
 	int passive = 0;

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[regression] linux318, linux41 - kernel stack is corrupted Philip Müller <philm@manjaro.org> - 2016-04-22 08:40 +0200
  Re: [regression] linux318, linux41 - kernel stack is corrupted Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-04-22 08:50 +0200
    Re: [regression] linux318, linux41 - kernel stack is corrupted Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-04-22 10:00 +0200
      Re: [regression] linux318, linux41 - kernel stack is corrupted "Sebastian M. Bobrecki" <sebastian@bobrecki.pl> - 2016-04-22 10:20 +0200
        Re: [regression] linux318, linux41 - kernel stack is corrupted Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-04-22 10:30 +0200
          Re: [regression] linux318, linux41 - kernel stack is corrupted Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-04-22 12:20 +0200
            Re: [regression] linux318, linux41 - kernel stack is corrupted Sasha Levin <sasha.levin@oracle.com> - 2016-04-23 04:10 +0200
    Re: [regression] linux318, linux41 - kernel stack is corrupted "Sebastian M. Bobrecki" <sebastian@bobrecki.pl> - 2016-04-22 10:00 +0200

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