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Groups > linux.kernel > #1627451

Re: WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has bad 'bp' value 00007fffc4614d30

From Josh Poimboeuf <jpoimboe@redhat.com>
Newsgroups linux.kernel
Subject Re: WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has bad 'bp' value 00007fffc4614d30
Date 2017-04-20 15:40 +0200
Message-ID <tyktr-14Q-3@gated-at.bofh.it> (permalink)
References <tyihY-8g4-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Apr 20, 2017 at 01:06:10PM +0200, Borislav Petkov wrote:
> Hi,
> 
> the splat below started appearing on one of the boxes here with
> rc7+tip/master from yesterday.
> 
> Ideas?

Thanks for reporting it.  This is another false positive.  It unwinded
from an interrupt which came in right after calling into C code, but
before it could set up the frame pointer.  This needs another unwinder
check.

-- 
Josh

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Thread

WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has bad  'bp' value 00007fffc4614d30 Borislav Petkov <bp@alien8.de> - 2017-04-20 13:20 +0200
  Re: WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has  bad 'bp' value 00007fffc4614d30 Josh Poimboeuf <jpoimboe@redhat.com> - 2017-04-20 15:40 +0200
    Re: WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has  bad 'bp' value 00007fffc4614d30 Josh Poimboeuf <jpoimboe@redhat.com> - 2017-04-20 15:50 +0200
      Re: WARNING: kernel stack regs at ffffc9000024fea8 in udevadm:92 has  bad 'bp' value 00007fffc4614d30 Borislav Petkov <bp@alien8.de> - 2017-04-20 18:20 +0200

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