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[Pete Woods <1412352@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:~unity-api-team/unity-scopes-api/RTM-plus-306

** Changed in: unity-scopes-api (Ubuntu RTM)
       Status: New => In Progress

** Changed in: unity-scopes-api (Ubuntu RTM)
     Assignee: (unassigned) => Pete Woods (pete-woods)

** Changed in: unity-scopes-api (Ubuntu RTM)
   Importance: Undecided => Critical

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https://bugs.launchpad.net/bugs/1412352

Title:
  Crash in scopes run time if scope throws exception from
  PreviewQueryBase::run()

Status in the base for Ubuntu mobile products:
  In Progress
Status in unity-scopes-api package in Ubuntu:
  Fix Released
Status in unity-scopes-api package in Ubuntu RTM:
  In Progress

Bug description:
  If a scope throws an exception from its PreviewQueryBase::run()
  implementation, the scopes run time dumps core (stack trace below).
  This affects both RTM and Vivid. I have a fix for this, which I'll MR
  tomorrow.

  #0  __libc_do_syscall () at ../ports/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:44
  No locals.
  #1  0xb6b7ae5e in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
          _a1 = 0
          _a3tmp = 6
          _a1tmp = 0
          _a3 = 6
          _nametmp = 268
          _a2tmp = 3737
          _a2 = 3737
          _name = 268
          _sys_result = <optimized out>
          pd = 0x9f5ff380
          pid = 0
          selftid = 3737
  #2  0xb6b7bb4e in __GI_abort () at abort.c:89
          save_stage = 2
          act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {1, 3066296895, 3066296824, 3065897499, 3065664229, 1, 3065664193, 3069661904, 2673865600, 3066482688, 729240, 0, 1, 30451216, 0, 3069594101, 3069661904, 1, 5, 0, 2673862536, 3065359272, 3066296824, 3066297880, 1, 30448212, 3068579119, 2673862316, 2673862536, 3069612528, 30451184, 2673866896}}, sa_flags = 1, sa_restorer = 0x0}
          sigs = {__val = {32, 0 <repeats 31 times>}}
  #3  0xb6cb8128 in __gnu_cxx::__verbose_terminate_handler () at ../../../../src/libstdc++-v3/libsupc++/vterminate.cc:95
          terminating = true
          t = <optimized out>
  #4  0xb6cb694c in __cxxabiv1::__terminate (handler=<optimized out>) at ../../../../src/libstdc++-v3/libsupc++/eh_terminate.cc:47
  No locals.
  #5  0xb6cb5d5a in __cxa_call_terminate (ue_header=0x1d0a610) at ../../../../src/libstdc++-v3/libsupc++/eh_call.cc:54
  No locals.
  #6  0xb6cb64ae in __cxxabiv1::__gxx_personality_v0 (state=<optimized out>, ue_header=0x1d0a610, context=<optimized out>) at ../../../../src/libstdc++-v3/libsupc++/eh_personality.cc:676
          action_record = <optimized out>
          p = <optimized out>
          thrown_ptr = 0x0
          info = {Start = 2673862680, LPStart = 30451216, ttype_base = 0, TType = 0xb6e6cd2d <unity::scopes::internal::PreviewQueryObject::run(std::shared_ptr<unity::scopes::internal::MWReply> const&, unity::scopes::internal::InvokeInfo const&)+1288> "GXFb\360:\375?K\004\230\363X\f8\230B\002\320YF\212\367a\376<K<I\360XyD\210\367\032\353\331\370", action_table = 0x1d12000 "\001", ttype_encoding = 136 '\210', call_site_encoding = 231 '\347'}
          landing_pad = 0
          ip = <optimized out>
          handler_switch_value = 0
          foreign_exception = false
          actions = <optimized out>
          found_type = <optimized out>
          language_specific_data = <optimized out>
  #7  0xb6c59c0a in unwind_phase2 (ucbp=ucbp@entry=0x1d0a610, vrs=vrs@entry=0x9f5fe6ac) at ../../../src/libgcc/unwind-arm-common.inc:294
          pr_result = <optimized out>
  #8  0xb6c59dda in __gnu_Unwind_Resume (ucbp=0x1d0a610, entry_vrs=0x9f5fe6ac) at ../../../src/libgcc/unwind-arm-common.inc:502
          pr_result = <optimized out>
  #9  0xb6c5a66e in _Unwind_Resume () at ../../../src/libgcc/config/arm/libunwind.S:357
  No locals.
  #10 0xb6e6cd2e in unity::scopes::internal::PreviewQueryObject::run (this=<optimized out>, reply=...) at /build/buildd/unity-scopes-api-0.6.8+15.04.20141119/src/scopes/internal/PreviewQueryObject.cpp:80
          e = @0xa6e0e070: {_vptr.exception = 0xb3a56418}
          __PRETTY_FUNCTION__ = "virtual void unity::scopes::internal::PreviewQueryObject::run(const MWReplyProxy&, const unity::scopes::internal::InvokeInfo&)"
          reply_proxy = {<std::__shared_ptr<unity::scopes::internal::PreviewReplyImpl, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x1d14c70}}, <No data fields>}
  #11 0x9f5f0006 in ?? ()
  No symbol table info available.
  Backtrace stopped: previous frame identical to this frame (corrupt stack?)

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