[FFmpeg-trac] #5764(undetermined:closed): ffmpeg deadlock with first pass x264 encode with >=slower and bitrate set

[FFmpeg]

#5764: ffmpeg deadlock with first pass x264 encode with >=slower and bitrate set
-------------------------------------+-------------------------------------
             Reporter:  MonoS        |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |  worksforme
Analyzed by developer:  0            |               Blocked By:
                                     |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by MonoS):

 Sorry for my lack of knowledge, i've compiled ffmpeg from the latest git
 with my usual environment [i did not turned off optimization], downloaded
 gdb and tried doing as in your documentation here
 https://ffmpeg.org/bugreports.html but i don't know how to have the
 backtrace when the process get stuck.

 Then tried attaching the process and printing a backtrace but i only got
 this
 {{{
 #0  0x00007ff909fa21e1 in ntdll!DbgUiContinue ()
    from C:\Windows\SYSTEM32\ntdll.dll
 #1  0x00007ff909fcf3a4 in ntdll!EtwEventActivityIdControl ()
    from C:\Windows\SYSTEM32\ntdll.dll
 #2  0x0000000000000000 in ?? ()
 }}}

 Instead, this is the info all-register dump
 {{{
 rax 0x7ff5ffe8c000
 rbx 0x7ff909fcf370
 rxc 0x0
 rdx 0x7ff909fcf370

 rsp 0x428aff28

 rip 0x7ff909fa21e1 (ntdll!DbgUiContinue+1)
 eflags 0x246 [PF ZF IF]
 cs 0x33
 ss 0x246002b
 gs 0x2b0000
 fctrl 0x27f
 }}}
 the other register are empty [0x0]

 I'm sure i'm doing something wrong with gdb, if i may have some more
 extensive instruction i'll provide all the information i can.

 I don't think it may be an hardware issue, i've tried it on 4 different
 machine with the same results

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5764#comment:2>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker