Messages in this thread | | | Date | Wed, 21 Dec 2016 23:17:01 -0600 | From | Josh Poimboeuf <> | Subject | Re: x86: warning in unwind_get_return_address |
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On Wed, Dec 21, 2016 at 01:46:36PM +0100, Andrey Konovalov wrote: > On Wed, Dec 21, 2016 at 12:36 AM, Josh Poimboeuf <jpoimboe@redhat.com> wrote: > > > > Thanks. Looking at the stack trace, my guess is that an interrupt hit > > while running in generated BPF code, and the unwinder got confused > > because regs->ip points to the generated code. I may need to disable > > that warning until we figure out a better solution. > > > > Can you share your .config file? > > Sure, attached.
Ok, I was able to recreate with your config. The culprit was generated code, as I suspected, though it wasn't BPF, it was a kprobe (created by dccpprobe_init()).
I'll make a patch to disable the warning.
-- Josh
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