Messages in this thread | | | Date | Thu, 9 Mar 2017 17:04:12 -0600 | From | Josh Poimboeuf <> | Subject | Re: Kernel panic on Lenovo X60 with tracing enabled |
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On Thu, Mar 09, 2017 at 09:43:47PM +0100, Paul Menzel wrote: > On 2017-03-09 17:29, Steven Rostedt wrote: > > On Thu, 9 Mar 2017 10:16:02 -0600 > > Josh Poimboeuf wrote: > > > > > On Thu, Mar 09, 2017 at 09:36:30AM -0500, Steven Rostedt wrote: > > > > On Thu, 9 Mar 2017 13:12:28 +0100 > > > > Paul Menzel wrote: > > > > > > Hopefully, I am contacting the right people for my issue. > > > > > > > > > > Suspending a system with Linux 4.9.13 with tracing enabled, it fails > > > > > with the screen still enabled, and the LED blinking. Attaching a serial > > > > > console to the dock, shows the messages below. > > > > > > > > I'm betting this is a compiler bug, as that bug that printed is the > > > > internal ftrace check for it. (note the bug is only in x86-32 not > > > > x86-64) > > > > > > > > Funny, we are just talking about this bug in another thread, but with a > > > > different symptom. > > > > > > > > Josh, did you say this goes away if you disable optimize for size or > > > > does it need to be enabled? > > > > > > Yeah, assuming it's the same problem, then this is caused by > > > CONFIG_CC_OPTIMIZE_FOR_SIZE. It would be fixed by changing it to > > > CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE. > > > > > > > Paul, do you have CONFIG_CC_OPTIMIZE_FOR_SIZE enabled? Can you set it > > to PERFORMANCE and see if the problem goes away? > > As far as I can see, the Debian Linux kernel is built with > `CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y`. > > So it might be a different problem?
Is it a stock Debian kernel? If so, do you have a link where it can be downloaded?
-- Josh
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