** Also affects: mir (Ubuntu)
Importance: Undecided
Status: New
** Changed in: mir (Ubuntu)
Importance: Undecided => Critical
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https://bugs.launchpad.net/bugs/1661508
Title:
Nested server segfaults or rapidly logs exceptions when a fullscreen
client starts [in mir_presentation_chain_set_dropping_mode ...
std::exception::what: Operation not permitted]
Status in Mir:
New
Status in Mir 0.26 series:
New
Status in mir package in Ubuntu:
New
Bug description:
Nested server segfaults when a fullscreen client starts
Using Mir 0.26.0 (zesty release):
The client dies:
[2017-02-03 15:05:44.315444] <ERROR> Mesa/NativeSurface: Caught exception at
Mir/EGL driver boundary (in advance_buffer):
/build/mir-1Sl_GZ/mir-0.26.0+17.04.20170126.3/src/client/no_tls_future-inl.h(76):
Throw in function void mir::client::PromiseStateBase<T>::break_promise() [with
T = std::shared_ptr<mir::client::MirBuffer>]
Dynamic exception type:
boost::exception_detail::error_info_injector<std::runtime_error>
std::exception::what: broken_promise
Because the server died:
Segmentation fault (core dumped)
(gdb) bt
#0 __GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:67
#1 0x00007fcceb7b4003 in ?? ()
from /usr/lib/x86_64-linux-gnu/libmirclient.so.9
#2 0x00007fcceb7d1961 in mir_presentation_chain_set_dropping_mode ()
from /usr/lib/x86_64-linux-gnu/libmirclient.so.9
#3 0x00007fccec0e3a7a in ?? ()
from /usr/lib/x86_64-linux-gnu/libmirserver.so.43
#4 0x00007fccec09fd2d in ?? ()
from /usr/lib/x86_64-linux-gnu/libmirserver.so.43
#5 0x00007fccec09f018 in ?? ()
from /usr/lib/x86_64-linux-gnu/libmirserver.so.43
#6 0x00007fccec0e2c79 in ?? ()
from /usr/lib/x86_64-linux-gnu/libmirserver.so.43
#7 0x00007fccebcfab2f in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#8 0x00007fcce95326ca in start_thread (arg=0x7fccde2b4700)
at pthread_create.c:333
#9 0x00007fccec4710ff in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105
WORKAROUND:
Start your nested server with --nested-passthrough=OFF
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