Messages in this thread | | | Subject | Re: Kernel panic on Lenovo X60 with tracing enabled | From | Paul Menzel <> | Date | Fri, 10 Mar 2017 09:53:29 +0100 |
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Dear Josh,
On 03/10/17 00:04, Josh Poimboeuf wrote: > 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?
Sure, hopefully [3] works for you.
``` dpkg -x linux-image-4.9.0-0.bpo.2-686-pae-unsigned_4.9.13-1~bpo8+1_i386.deb target-directory ```
Kind regards,
Paul
[1] https://packages.debian.org/jessie-backports/linux-image-4.9.0-0.bpo.2-686-pae-unsigned [2] https://packages.debian.org/jessie-backports/i386/linux-image-4.9.0-0.bpo.2-686-pae-unsigned/download [3] http://ftp.us.debian.org/debian/pool/main/l/linux/linux-image-4.9.0-0.bpo.2-686-pae-unsigned_4.9.13-1~bpo8+1_i386.deb [4] https://linux.die.net/man/1/dpkg
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