[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Daniel van Vugt]

Good question. Alan seems to be on top of this problem. Maybe he can try
to upstream the fix...?

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  Fix Released

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

  ~

  The reason this matters:

  The principle downstream from Mir (Unity8) loads Mir as one of a
  number of plugins, several of which use protobuf. That means that
  we're prone to being loaded, unloaded and reloaded and don't have
  control of this.

  We've encountered problems in this scenario before that have been
  traced to protobuf so we have a specific test. But other Unity8
  plugins may encounter the same issue.

  As seen in comment #25 the problem here is entirely down to a change
  in the behavior of libmirprotobuf-lite - it no longer unloads on
  dlclose().

  This is only a problem because there is code (see patch in comment
  #20) that assumes that the library will not be used after a call to
  google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[LocutusOfBorg]

why this patch is not upstream? I don't see it in the google protobuf github 
repo
https://github.com/google/protobuf/blob/master/src/google/protobuf/stubs/common.cc

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  Fix Released

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

  ~

  The reason this matters:

  The principle downstream from Mir (Unity8) loads Mir as one of a
  number of plugins, several of which use protobuf. That means that
  we're prone to being loaded, unloaded and reloaded and don't have
  control of this.

  We've encountered problems in this scenario before that have been
  traced to protobuf so we have a specific test. But other Unity8
  plugins may encounter the same issue.

  As seen in comment #25 the problem here is entirely down to a change
  in the behavior of libmirprotobuf-lite - it no longer unloads on
  dlclose().

  This is only a problem because there is code (see patch in comment
  #20) that assumes that the library will not be used after a call to
  google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Launchpad Bug Tracker]

This bug was fixed in the package protobuf - 3.0.0-7ubuntu3

---
protobuf (3.0.0-7ubuntu3) yakkety; urgency=medium

  [ Alan Griffiths ]
  * Fix reloading of the shared libraries with dlopen. LP: #1619616.

 -- Matthias Klose   Thu, 08 Sep 2016 14:19:44 +0200

** Changed in: protobuf (Ubuntu)
   Status: Fix Committed => Fix Released

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  Fix Released

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

  ~

  The reason this matters:

  The principle downstream from Mir (Unity8) loads Mir as one of a
  number of plugins, several of which use protobuf. That means that
  we're prone to being loaded, unloaded and reloaded and don't have
  control of this.

  We've encountered problems in this scenario before that have been
  traced to protobuf so we have a specific test. But other Unity8
  plugins may encounter the same issue.

  As seen in comment #25 the problem here is entirely down to a change
  in the behavior of libmirprotobuf-lite - it no longer unloads on
  dlclose().

  This is only a problem because there is code (see patch in comment
  #20) that assumes that the library will not be used after a call to
  google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Daniel van Vugt]

protobuf (3.0.0-7ubuntu3) yakkety; urgency=medium

  [ Alan Griffiths ]
  * Fix reloading of the shared libraries with dlopen. LP: #1619616.

 -- Matthias Klose   Thu, 08 Sep 2016 14:19:44 +0200

** Changed in: protobuf (Ubuntu)
   Status: In Progress => Fix Committed

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  Fix Committed

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

  ~

  The reason this matters:

  The principle downstream from Mir (Unity8) loads Mir as one of a
  number of plugins, several of which use protobuf. That means that
  we're prone to being loaded, unloaded and reloaded and don't have
  control of this.

  We've encountered problems in this scenario before that have been
  traced to protobuf so we have a specific test. But other Unity8
  plugins may encounter the same issue.

  As seen in comment #25 the problem here is entirely down to a change
  in the behavior of libmirprotobuf-lite - it no longer unloads on
  dlclose().

  This is only a problem because there is code (see patch in comment
  #20) that assumes that the library will not be used after a call to
  google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Same patch as mentioned in #18 and #20 formatted better

** Attachment added: "my least bad solution"
   
https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1619616/+attachment/4736828/+files/fix-protobuf

** Changed in: mir
Milestone: 0.25.0 => None

** Changed in: mir (Ubuntu)
Milestone: ubuntu-16.09 => None

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You received this bug notification because you are a member of Ubuntu
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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

  ~

  The reason this matters:

  The principle downstream from Mir (Unity8) loads Mir as one of a
  number of plugins, several of which use protobuf. That means that
  we're prone to being loaded, unloaded and reloaded and don't have
  control of this.

  We've encountered problems in this scenario before that have been
  traced to protobuf so we have a specific test. But other Unity8
  plugins may encounter the same issue.

  As seen in comment #25 the problem here is entirely down to a change
  in the behavior of libmirprotobuf-lite - it no longer unloads on
  dlclose().

  This is only a problem because there is code (see patch in comment
  #20) that assumes that the library will not be used after a call to
  google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

** Description changed:

  builds with 3.0.0-7, then has one failing test:
  
  test 19
Start 19: Protobuf-can-be-reloaded
  
  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec
  
  95% tests passed, 1 tests failed out of 19
  
  Total Test time (real) = 125.73 sec
  
  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8
+ 
+ ~
+ 
+ The reason this matters:
+ 
+ The principle downstream from Mir (Unity8) loads Mir as one of a number
+ of plugins, several of which use protobuf. That means that we're prone
+ to being loaded, unloaded and reloaded and don't have control of this.
+ 
+ We've encountered problems in this scenario before that have been traced
+ to protobuf so we have a specific test. But other Unity8 plugins may
+ encounter the same issue.
+ 
+ As seen in comment #25 the problem here is entirely down to a change in
+ the behavior of libmirprotobuf-lite - it no longer unloads on dlclose().
+ 
+ This is only a problem because there is code (see patch in comment #20)
+ that assumes that the library will not be used after a call to
+ google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

  ~

  The reason this matters:

  The principle downstream from Mir (Unity8) loads Mir as one of a
  number of plugins, several of which use protobuf. That means that
  we're prone to being loaded, unloaded and reloaded and don't have
  control of this.

  We've encountered problems in this scenario before that have been
  traced to protobuf so we have a specific test. But other Unity8
  plugins may encounter the same issue.

  As seen in comment #25 the problem here is entirely down to a change
  in the behavior of libmirprotobuf-lite - it no longer unloads on
  dlclose().

  This is only a problem because there is code (see patch in comment
  #20) that assumes that the library will not be used after a call to
  google::protobuf::ShutdownProtobufLibrary() unless it is reloaded.

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Hmm the library publishes a load of symbols that seem unnecessary at
best:

$ readelf -Ws /usr/local/lib/libprotobuf-lite.so | grep -v " UND " | grep -v 
6google8protobuf | wc -l
123

2.6.1 seems far more reasonable:

$ readelf -Ws /usr/lib/x86_64-linux-gnu/libprotobuf-lite.so.9 | grep -v " UND " 
| grep -v 6google8protobuf | wc -l
10

I'm especially suspicious of the following leading to entanglement with
libstdc++:

$ readelf -Ws /usr/local/lib/libprotobuf-lite.so.10 | grep -v " UND " | grep -v 
6google8protobuf | grep _ZNS 
   402: 00023080   474 FUNCWEAK   DEFAULT   12 
_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE19_M_emplace_back_auxIJS5_EEEvDpOT_
   552: 0001b2c0   220 FUNCWEAK   DEFAULT   12 
_ZNSt6vectorIPFvvESaIS1_EE19_M_emplace_back_auxIJRKS1_EEEvDpOT_
   700: 00023260   117 FUNCWEAK   DEFAULT   12 
_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12emplace_backIJS5_EEEvDpOT_
39: 00023310   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPcEEvT_S7_St20forward_iterator_tag.isra.25
40: 00023310   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag.isra.20
46: 0001c4a0   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPcEEvT_S7_St20forward_iterator_tag.isra.29
47: 0001c4a0   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag.isra.23
72: 00019740   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPcEEvT_S7_St20forward_iterator_tag.isra.42
73: 00019740   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag.isra.36
78: 0001b3a0   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPcEEvT_S7_St20forward_iterator_tag.isra.30
87: 0001e820   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPcEEvT_S7_St20forward_iterator_tag.isra.45
88: 0001e820   194 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag.isra.39
   115: 0002ea80   174 FUNCLOCAL  DEFAULT   12 
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag.isra.21.constprop.32
   466: 00023260   117 FUNCWEAK   DEFAULT   12 
_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12emplace_backIJS5_EEEvDpOT_
   776: 0001b2c0   220 FUNCWEAK   DEFAULT   12 
_ZNSt6vectorIPFvvESaIS1_EE19_M_emplace_back_auxIJRKS1_EEEvDpOT_
   777: 00023080   474 FUNCWEAK   DEFAULT   12 
_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE19_M_emplace_back_auxIJS5_EEEvDpOT_

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Narrowing the problem: it isn't any of the Mir code, or the generated
code, or explicit calls into libprotobuf-lite.

The following program loads and unloads libprotobuf-lite.so from 2.6.1
successfully. With 3.0.0 it fails to unload.

#include 
#include 

int main(int argc, char** argv)
{
char const* libname = argc <= 1 ? "libprotobuf-lite.so" : argv[1];

void* dl = NULL;

dl = dlopen(libname, RTLD_NOW);
if (!dl)
{
printf("dlopen() error: (%s)\n", dlerror());
return 1;
}

printf("library loaded\n");
dlclose(dl);

dl = dlopen(libname, RTLD_NOW|RTLD_NOLOAD);

if (dl)
{
printf("library didn't unload: (%s)\n", libname);
dlclose(dl);
return 1;
}

printf("library unloaded\n");

return 0;
}

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Daniel van Vugt]

Invalid for the Mir project. Sounds like it's just another protobuf bug.

Hopefully we won't need to workaround it in Mir, but that's not
completely out of the question. Especially if protobuf3 hits distro
without first getting fixed we won't have much choice.

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Daniel van Vugt]

** Changed in: mir
   Status: Confirmed => Invalid

** Changed in: mir (Ubuntu)
   Status: Confirmed => Invalid

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Invalid
Status in mir package in Ubuntu:
  Invalid
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

In any case, if protobuf choses to remain resident it is only polite to
work when the startup/shutdown cycle is repeated. (And that's what the
patch achieves.)

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

This shows the problem, but not the underlying cause:

$ gdb bin/mir_test_reload_protobufGNU gdb (Ubuntu 7.11.90.20160906-0ubuntu1) 
7.11.90.20160906-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from bin/mir_test_reload_protobuf...done.
(gdb) b /home/alan/display_server/mir/tests/loader-tests/test_reload.c:36
No source file named 
/home/alan/display_server/mir/tests/loader-tests/test_reload.c.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 
(/home/alan/display_server/mir/tests/loader-tests/test_reload.c:36) pending.
(gdb) r
Starting program: 
/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/mir_test_reload_protobuf
 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
MIR_CLIENT_PLATFORM_PATH=/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/../lib/client-modules/
MIR_SERVER_PLATFORM_PATH=/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/../lib/server-modules/
LD_LIBRARY_PATH=/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/../lib
exec=/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/mir_test_reload_protobuf.bin
process 2335 is executing new program: 
/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/mir_test_reload_protobuf.bin
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Breakpoint 1, main (argc=1, argv=0x7fffde58) at 
/home/alan/display_server/mir/tests/loader-tests/test_reload.c:36
36  dl = dlopen(libname, RTLD_NOW);
(gdb) info share
>FromTo  Syms Read   Shared Object Library
0x77dd8aa0  0x77df6130  Yes /lib64/ld-linux-x86-64.so.2
0x77bd4d80  0x77bd598e  Yes 
/lib/x86_64-linux-gnu/libdl.so.2
0x779bba60  0x779c8e01  Yes 
/lib/x86_64-linux-gnu/libpthread.so.0
0x7760e9c0  0x7775f0c3  Yes 
/lib/x86_64-linux-gnu/libc.so.6
(gdb) n
37  if (dl)
(gdb) info share
>FromTo  Syms Read   Shared Object Library
0x77dd8aa0  0x77df6130  Yes /lib64/ld-linux-x86-64.so.2
0x77bd4d80  0x77bd598e  Yes 
/lib/x86_64-linux-gnu/libdl.so.2
0x779bba60  0x779c8e01  Yes 
/lib/x86_64-linux-gnu/libpthread.so.0
0x7760e9c0  0x7775f0c3  Yes 
/lib/x86_64-linux-gnu/libc.so.6
0x77360c60  0x773c3e86  Yes 
/home/alan/.CLion2016.2/system/cmake/generated/mir-9ec817d/9ec817d/Debug/bin/../lib/libmirprotobuf.so.3
0x7710ddd0  0x7712a3c6  Yes 
/usr/local/lib/libprotobuf-lite.so.10
0x76df8900  0x76ea7c79  Yes (*) 
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
0x76b58a90  0x76b688e5  Yes (*) 
/lib/x86_64-linux-gnu/libgcc_s.so.1
0x76852710  0x768c3bfa  Yes 
/lib/x86_64-linux-gnu/libm.so.6
(*): Shared library is missing debugging information.
(gdb) c
Continuing.
[0] dlopen `libmirprotobuf.so.3' = 0x557564c0

Breakpoint 1, main (argc=1, argv=0x7fffde58) at 
/home/alan/display_server/mir/tests/loader-tests/test_reload.c:36
36  dl = dlopen(libname, RTLD_NOW);
(gdb) info share
>FromTo  Syms Read   Shared Object Library
0x77dd8aa0  0x77df6130  Yes /lib64/ld-linux-x86-64.so.2
0x77bd4d80  0x77bd598e  Yes 
/lib/x86_64-linux-gnu/libdl.so.2
0x779bba60  0x779c8e01  Yes 
/lib/x86_64-linux-gnu/libpthread.so.0
0x7760e9c0  0x7775f0c3  Yes 
/lib/x86_64-linux-gnu/libc.so.6
0x7710ddd0  0x7712a3c6  Yes 
/usr/local/lib/libprotobuf-lite.so.10
0x76df8900  0x76ea7c79  Yes (*) 
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
0x76b58a90  0x76b688e5  Yes (*) 
/lib/x86_64-linux-gnu/libgcc_s.so.1
0x76852710  0x768c3bfa  Yes 
/lib/x86_64-linux-gnu/libm.so.6
(*): Shared library is missing debugging information.

With protobuf-2.6.1 the libprotobuf-lite library is unloaded at this

[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

The reason 2.6.1 works is that libprotobuf-lite-so.9 is unloaded each
iteration. But with the move to 3.0.0 that no longer happens.

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Oops. The patch in #18 is for google/protobuf/stubs/common.cc:

415d414
<   shutdown_functions = new vector;
425a425,426
>   if (internal::shutdown_functions == NULL)
> shutdown_functions = new vector;
446,447d446
<   delete internal::shutdown_functions_mutex;
<   internal::shutdown_functions_mutex = NULL;

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

But I don't yet see how 2.6.1 avoided this issue.

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

A simpler fix that removes the assumption that the shared library will
be unloaded between uses

** Attachment added: "fix-protobuf"
   
https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1619616/+attachment/4736108/+files/fix-protobuf

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

OK, I have rebuild laptop and have a less flaky system. This (updated)
patch is only a proof-of-concept as it clearly leaks resources on
program exit in this form.

OTOH it does make the Mir test pass, so I have found the right problem.

** Attachment added: "fix-protobuf"
   
https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1619616/+attachment/4736088/+files/fix-protobuf

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

I'm very suspicious of my laptop running yakkety - even with "proposed"
purged it is now crashing every few minutes (which makes keeping track
of things a PITA).

The root cause is probably a failure in protobuf to re-initalise static
data when clients call google::protobuf::ShutdownProtobufLibrary(). This
leads to a failure when if the whole .so isn't unloaded before the next
"GOOGLE_PROTOBUF_VERIFY_VERSION;"

Which is why the change I picked up looks relevant.

The "hack" mentioned above did appear to workaround the problem for Mir
(i.e. the test passes). (But it will probably recur with other Qt
plugins that use protobuf.)

So I'm going to reinstall and start over.

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

There was a hack put into Mir around the end of June 2015 as linked by
Daniel
(https://code.launchpad.net/~vanvugt/mir/fix-1391976/+merge/262678). As
the comment suggests this was pending "a proper fix will come from
libprotobuf itself but this way we don't need to wait for that".

This "hack" was removed at the end of July 2015. I don't see a
corresponding change to protobuf. So I suspect I have been chasing the
wrong fix. I found some differences that look related and tried patching
them locally. I still have to figure out why patching things seems to
work locally - especially with the typo in the patch file. Clearly I'm
doing something wrong. :(

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Daniel van Vugt]

Two problems with that statement:
  (1) That's just a test and not a fix or workaround; and
  (2) It's for Mir, not to be "applied in the protobuf package".

The relevant workaround for Mir is actually:
  https://code.launchpad.net/~vanvugt/mir/fix-1391976/+merge/262678
but we'll hold off reapplying that while Alan is proposing proper fixes for 
protobuf itself.

** Changed in: protobuf (Ubuntu)
 Assignee: (unassigned) => Alan Griffiths (alan-griffiths)

** Changed in: protobuf (Ubuntu)
   Importance: Undecided => High

** Changed in: protobuf (Ubuntu)
   Status: New => In Progress

** Changed in: mir
   Status: In Progress => Confirmed

** Changed in: mir
 Assignee: Alan Griffiths (alan-griffiths) => (unassigned)

** Changed in: mir (Ubuntu)
 Assignee: Alan Griffiths (alan-griffiths) => (unassigned)

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Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  In Progress

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Matthias Klose]

hmm, and the hack found in lp:~vanvugt/mir/test-1391976/+merge/262669 was never 
applied in the protobuf package, if you look at protobuf's publishing history at
https://launchpad.net/ubuntu/+source/protobuf/+publishinghistory

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https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  In Progress
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  New

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Matthias Klose]

the test still fails when built using protobuf 3.0.0-7ubuntu2

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  In Progress
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  New

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Patch for the correct branch

** Attachment added: "fix-protobuf"
   
https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1619616/+attachment/4734930/+files/fix-protobuf

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  In Progress
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  New

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Ooops!! that's based on the wrong branch

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  In Progress
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  New

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

Here's the fix to +branch/ubuntu/wily-proposed/protobuf/ that fixes the
problem with reloading modules that depend on protobuf.

** Attachment added: "Forward port fix from protobuf 2.6"
   
https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1619616/+attachment/4734807/+files/fix-protobuf

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  In Progress
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  New

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Daniel van Vugt]

** Changed in: mir
 Assignee: (unassigned) => Alan Griffiths (alan-griffiths)

** Changed in: mir
   Status: New => In Progress

** Also affects: protobuf (Ubuntu)
   Importance: Undecided
   Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  In Progress
Status in mir package in Ubuntu:
  Confirmed
Status in protobuf package in Ubuntu:
  New

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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[Touch-packages] [Bug 1619616] Re: Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

[Alan Griffiths]

It looks very much as though protobuf3 reverts this change:

  $ bzr log -c 295 lp:protobuf

I've not yet proved that's the whole problem, but it would explain it.

** Changed in: mir (Ubuntu)
 Assignee: (unassigned) => Alan Griffiths (alan-griffiths)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1619616

Title:
  Mir test fails with protobuf3: Protobuf-can-be-reloaded (SEGFAULT)

Status in Mir:
  New
Status in mir package in Ubuntu:
  Confirmed

Bug description:
  builds with 3.0.0-7, then has one failing test:

  test 19
Start 19: Protobuf-can-be-reloaded

  19: Test command: 
/<>/mir-0.24.0+16.10.20160815.3/obj-powerpc64le-linux-gnu/bin/mir_test_reload_protobuf
  19: Test timeout computed to be: 9.99988e+06
  19/19 Test #19: Protobuf-can-be-reloaded 
..***Exception: SegFault 0.17 sec

  95% tests passed, 1 tests failed out of 19

  Total Test time (real) = 125.73 sec

  The following tests FAILED:
19 - Protobuf-can-be-reloaded (SEGFAULT)
  Errors while running CTest
  Makefile:85: recipe for target 'test' failed
  make[2]: *** [test] Error 8

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1619616/+subscriptions

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