[Qemu-devel] [Bug 1589923] Re: https websockets not working in 2.5 or 2.6

[ChristianEhrhardt]

Fixed in >=2.7 and thereby >=Zesty.
Needs to be considered for SRUs now.

** Also affects: qemu (Ubuntu Yakkety)
   Importance: Undecided
       Status: New

** Also affects: qemu (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: qemu (Ubuntu)
       Status: Triaged => Fix Released

** Changed in: qemu (Ubuntu Xenial)
       Status: New => Triaged

** Changed in: qemu (Ubuntu Yakkety)
       Status: New => Triaged

** Tags added: server-next

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https://bugs.launchpad.net/bugs/1589923

Title:
  https websockets not working in 2.5 or 2.6

Status in QEMU:
  Fix Released
Status in qemu package in Ubuntu:
  Fix Released
Status in qemu source package in Xenial:
  Triaged
Status in qemu source package in Yakkety:
  Triaged
Status in Arch Linux:
  New

Bug description:
  % gdb --args ./x86_64-softmmu/qemu-system-x86_64 -vnc 
0.0.0.0:1,tls,x509=/etc/pki/libvirt-le,websocket=5701 
                          
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  and "show warranty" for details.
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  For bug reporting instructions, please see:
  <http://www.gnu.org/software/gdb/bugs/>.
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  For help, type "help".
  Type "apropos word" to search for commands related to "word"...
  Reading symbols from ./x86_64-softmmu/qemu-system-x86_64...done.
  (gdb) run
  Starting program: /home/ben/qemu/qemu-2.6.0/x86_64-softmmu/qemu-system-x86_64 
-vnc 0.0.0.0:1,tls,x509=/etc/pki/libvirt-le,websocket=5701
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/usr/lib/libthread_db.so.1".
  [New Thread 0x7fffe16f6700 (LWP 12767)]
  [New Thread 0x7fffde2d4700 (LWP 12768)]
  [New Thread 0x7fffd3fff700 (LWP 12769)]
  Initializing VNC server with x509 no auth
  Client sioc=0x55555874d6b0 ws=1 auth=1 subauth=0
  New client on socket 0x55555874d6b0
  vnc_set_share_mode/0x55555874d6b0: undefined -> connecting
  TLS Websocket connection required
  Start TLS WS handshake process
  Handshake failed TLS handshake failed: The TLS connection was non-properly 
terminated.
  Closing down client sock: protocol error
  vnc_set_share_mode/0x55555779f510: connecting -> disconnected
  Client sioc=0x55555873c6a0 ws=1 auth=1 subauth=0
  New client on socket 0x55555873c6a0
  vnc_set_share_mode/0x55555873c6a0: undefined -> connecting
  TLS Websocket connection required
  Start TLS WS handshake process
  TLS handshake complete, starting websocket handshake
  Websocket negotiate starting
  Websock handshake complete, starting VNC protocol
  Write Plain: Pending output 0x555557b91c60 size 4096 offset 12. Wait SSF 0
  Wrote wire 0x555557b91c60 12 -> 12

  Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
  0x0000000000000001 in ?? ()
  (gdb) thread apply all bt

  Thread 4 (Thread 0x7fffd3fff700 (LWP 12769)):
  #0  0x00007fffef35a09f in pthread_cond_wait@@GLIBC_2.3.2 () from 
/usr/lib/libpthread.so.0
  #1  0x0000555555a20bd9 in qemu_cond_wait (address@hidden, 
      address@hidden) at util/qemu-thread-posix.c:123
  #2  0x00005555559770ab in vnc_worker_thread_loop (address@hidden)
      at ui/vnc-jobs.c:228
  #3  0x00005555559775e8 in vnc_worker_thread (arg=0x5555587267e0) at 
ui/vnc-jobs.c:335
  #4  0x00007fffef354474 in start_thread () from /usr/lib/libpthread.so.0
  #5  0x00007fffea43c69d in clone () from /usr/lib/libc.so.6

  Thread 3 (Thread 0x7fffde2d4700 (LWP 12768)):
  #0  0x00007fffef35a09f in pthread_cond_wait@@GLIBC_2.3.2 () from 
/usr/lib/libpthread.so.0
  #1  0x0000555555a20bd9 in qemu_cond_wait (cond=<optimized out>, 
  ---Type <return> to continue, or q <return> to quit---
      emu_global_mutex>) at util/qemu-thread-posix.c:123
  #2  0x0000555555715edf in qemu_tcg_wait_io_event (cpu=0x5555564ee840) at 
/home/ben/qemu/qemu-2.6.0/cpus.c:1015
  #3  qemu_tcg_cpu_thread_fn (arg=<optimized out>) at 
/home/ben/qemu/qemu-2.6.0/cpus.c:1161
  #4  0x00007fffef354474 in start_thread () from /usr/lib/libpthread.so.0
  #5  0x00007fffea43c69d in clone () from /usr/lib/libc.so.6

  Thread 2 (Thread 0x7fffe16f6700 (LWP 12767)):
  #0  0x00007fffea438229 in syscall () from /usr/lib/libc.so.6
  #1  0x0000555555a20ee8 in futex_wait (val=<optimized out>, ev=<optimized 
out>) at util/qemu-thread-posix.c:292
  #2  qemu_event_wait (address@hidden <rcu_call_ready_event>) at 
util/qemu-thread-posix.c:399
  #3  0x0000555555a2f2ae in call_rcu_thread (opaque=<optimized out>) at 
util/rcu.c:250
  #4  0x00007fffef354474 in start_thread () from /usr/lib/libpthread.so.0
  #5  0x00007fffea43c69d in clone () from /usr/lib/libc.so.6

  Thread 1 (Thread 0x7ffff7f5bb00 (LWP 12763)):
  #0  0x0000000000000001 in ?? ()
  #1  0x00005555559efb53 in qio_task_free (task=0x555558212140) at io/task.c:58
  #2  0x00005555559efd89 in qio_task_complete (address@hidden) at io/task.c:145
  #3  0x00005555559ef5aa in qio_channel_websock_handshake_send 
(ioc=0x55555873c6a0, condition=<optimized out>, 
      user_data=0x555558212140) at io/channel-websock.c:289
  #4  0x00007fffecf59c8a in g_main_context_dispatch () from 
/usr/lib/libglib-2.0.so.0
  #5  0x000055555598a6b3 in glib_pollfds_poll () at main-loop.c:213
  #6  os_host_main_loop_wait (timeout=<optimized out>) at main-loop.c:258
  #7  main_loop_wait (nonblocking=<optimized out>) at main-loop.c:506
  #8  0x00005555556e1fbd in main_loop () at vl.c:1934
  #9  main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) 
at vl.c:4656

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