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Groups > linux.kernel > #1495943

Re: BUG_ON() in workingset_node_shadows_dec() triggers

From Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups linux.kernel
Subject Re: BUG_ON() in workingset_node_shadows_dec() triggers
Date 2016-10-05 18:00 +0200
Message-ID <soWLT-2S6-7@gated-at.bofh.it> (permalink)
References <sopdf-5Kn-3@gated-at.bofh.it> <soKrn-2ZC-1@gated-at.bofh.it> <soL45-3sX-3@gated-at.bofh.it> <soNfz-4TI-1@gated-at.bofh.it>
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On Tue, Oct 4, 2016 at 10:44 PM, Willy Tarreau <w@1wt.eu> wrote:
>
> I think instead we should completely remove any simple way to halt the
> system and document how to do it.

Having slept on it, I suspect you're right. I worry about some
BUG_ON() that really relies on the killing behavior, but if it takes a
"real" fault later, that is when it gets killed. And on the whole,
we've had lots of problems with the killing behavior over the years,
so we should just try switching BUG_ON() over to non-fatal. It's
unlikely to be worse than what we have now, as exemplified by this
event.

                Linus

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Thread

BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-04 06:10 +0200
  Re: BUG_ON() in workingset_node_shadows_dec() triggers Greg KH <greg@kroah.com> - 2016-10-04 10:20 +0200
  Re: BUG_ON() in workingset_node_shadows_dec() triggers Johannes Weiner <hannes@cmpxchg.org> - 2016-10-04 11:40 +0200
    Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 03:30 +0200
      Re: BUG_ON() in workingset_node_shadows_dec() triggers Johannes Weiner <hannes@cmpxchg.org> - 2016-10-05 11:30 +0200
        Re: BUG_ON() in workingset_node_shadows_dec() triggers Johannes Weiner <hannes@cmpxchg.org> - 2016-10-05 11:40 +0200
        Re: BUG_ON() in workingset_node_shadows_dec() triggers Jan Kara <jack@suse.cz> - 2016-10-05 12:50 +0200
        Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 18:20 +0200
          Re: [PATCH] checkpatch: extend BUG warning Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 19:10 +0200
          [PATCH] checkpatch: extend BUG warning Joe Perches <joe@perches.com> - 2016-10-05 19:10 +0200
  Re: BUG_ON() in workingset_node_shadows_dec() triggers Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-10-05 04:50 +0200
    Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 05:30 +0200
      Re: BUG_ON() in workingset_node_shadows_dec() triggers Willy Tarreau <w@1wt.eu> - 2016-10-05 07:50 +0200
        Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 18:00 +0200
          Re: BUG_ON() in workingset_node_shadows_dec() triggers Willy Tarreau <w@1wt.eu> - 2016-10-05 21:10 +0200
            Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 21:20 +0200
              Re: BUG_ON() in workingset_node_shadows_dec() triggers Willy Tarreau <w@1wt.eu> - 2016-10-05 23:20 +0200
              Re: BUG_ON() in workingset_node_shadows_dec() triggers Kees Cook <keescook@chromium.org> - 2016-10-05 23:20 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-05 23:50 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Kees Cook <keescook@chromium.org> - 2016-10-06 00:20 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-06 00:40 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Kees Cook <keescook@chromium.org> - 2016-10-07 00:10 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-07 00:30 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Kees Cook <keescook@chromium.org> - 2016-10-07 01:10 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-07 02:00 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Willy Tarreau <w@1wt.eu> - 2016-10-07 08:00 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Kees Cook <keescook@chromium.org> - 2016-10-07 19:20 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-07 19:30 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Kees Cook <keescook@chromium.org> - 2016-10-07 19:40 +0200
                Re: BUG_ON() in workingset_node_shadows_dec() triggers Willy Tarreau <w@1wt.eu> - 2016-10-07 20:30 +0200
      Re: BUG_ON() in workingset_node_shadows_dec() triggers Dave Chinner <david@fromorbit.com> - 2016-10-06 04:10 +0200
        Re: BUG_ON() in workingset_node_shadows_dec() triggers Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-06 04:20 +0200

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