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Date:      Tue, 28 Feb 2017 02:53:20 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-amd64@FreeBSD.org
Subject:   [Bug 217138] head (e.g.) -r313864 for arm64: sh vs. jemalloc asserts: include/jemalloc/internal/tsd.h:687: Failed assertion: "tsd_booted" once swapped in after being swapped out (comment 10)
Message-ID:  <bug-217138-6-s9oJKVw5Re@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-217138-6@https.bugs.freebsd.org/bugzilla/>
References:  <bug-217138-6@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217138

Mark Millard <markmi@dsl-only.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|head (e.g.) -r313864 for    |head (e.g.) -r313864 for
                   |arm64: sh vs. jemalloc      |arm64: sh vs. jemalloc
                   |asserts:                    |asserts:
                   |include/jemalloc/internal/t |include/jemalloc/internal/t
                   |sd.h:687: Failed assertion: |sd.h:687: Failed assertion:
                   |"tsd_booted"                |"tsd_booted" once swapped
                   |                            |in after being swapped out
                   |                            |(comment 10)

--- Comment #10 from Mark Millard <markmi@dsl-only.net> ---
I've reduced the testing context to the following
type of example (no longer involving buildworld
buildkernel):

# sh
# sh
# sh
. . .
# sh

(So a bunch of nested sh's in an ssh session that
will mostly be swapped out. I happened to have
done this under 2 users for the example material
below: on I did an su first. Plus I had another
session without such a nesting but with an su.)

After forcing these to mostly swap out (see below)
I use ^D to exit a currently interactive one. Then
the rest of the swapped out ones from the nesting
get the tsd_booted failure.

So, for example:

# stress -m 1 --vm-bytes 1536M

The context is a PINE64+ with 2GB of RAM. The above
was enough in my context to cause the needed swapouts:

# ps -aOuser,flags
  PID USER          F TT  STAT    TIME COMMAND
  688 root       4102 u0  IWs  0:00.00 login [pam] (login)
  689 root   10004002 u0  I+   0:00.06 -sh (sh)
72611 markmi     4002  0  IWs  0:00.00 -sh (sh)
72613 markmi     4002  0  IW   0:00.00 sh
72614 markmi     4002  0  IW   0:00.00 sh
72615 markmi     4002  0  IW   0:00.00 sh
72616 markmi     4002  0  IW   0:00.00 sh
72617 markmi     4002  0  IW   0:00.00 sh
72618 markmi     4002  0  IW   0:00.00 sh
72619 markmi     4002  0  IW   0:00.00 sh
72620 markmi     4002  0  IW   0:00.00 sh
72621 markmi     4002  0  IW   0:00.00 sh
72622 markmi     4002  0  IW   0:00.00 sh
72623 markmi     4002  0  IW   0:00.00 sh
72624 markmi     4002  0  IW   0:00.00 sh
72625 markmi     4002  0  IW   0:00.00 sh
72626 markmi 10004002  0  I+   0:00.01 sh
  167 markmi     4002  1  IWs  0:00.00 -sh (sh)
  169 root       4102  1  IW   0:00.00 su
  170 root       4002  1  IW   0:00.00 su (sh)
  171 root       4002  1  IW   0:00.00 sh
  172 root       4002  1  IW   0:00.00 sh
  173 root       4002  1  IW   0:00.00 sh
  174 root       4002  1  IW   0:00.00 sh
  175 root       4002  1  IW   0:00.00 sh
  176 root       4002  1  IW   0:00.00 sh
  177 root       4002  1  IW   0:00.00 sh
  178 root       4002  1  IW   0:00.00 sh
  179 root   10004002  1  I+   0:00.01 sh
60961 root       4002  2  IW   0:00.00 stress -m 1 --vm-bytes 1536M
60962 root   10000002  2  R    0:29.41 stress -m 1 --vm-bytes 1536M
60964 root   10004002  2  R+   0:00.01 ps -aOuser,flags
82389 markmi     4002  2  IWs  0:00.00 -sh (sh)
82391 root       4102  2  IW   0:00.00 su
82392 root   10004002  2  S    0:00.22 su (sh)

So with that swapped out context established:

(The markmi user case:)

$ ^D<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:6=
87:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"


(The su'd user case:)

# ^D<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:6=
87:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"

The one without the deeply nested sh's (but an su):

# exit
<jemalloc>: /usr/src/contrib/jemalloc/include/jemalloc/internal/tsd.h:687:
Failed assertion: "tsd_booted"

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