[MPlayer-users] Doubts about memory leak in MPlayerX

[Rarylson Freitas]

Hi dears,

It first, I don't know if this mailing list is the correct place to
send this problem.

Anyway, I'm using the MPlayerX project (a GUI to mplayer) in a MacOSX.
I was using MPlayer X in Yosemite and so I've update my OS to El
Capitain. After this, MPlayerX stop working. I sent an email to
support at mplayerx.org, but I have no replies :(.

So I'm sending this email to this mailing list, and I would appreciate
any help to fix this problem.

The MPlayerX project itself uses a bundled version of mplayer. When
opening a movie, MplayerX launchs a mplayer instance with the video
output redirected to a MPlayerX buffer.

The GUI opens well, but when I click to open a movie (the problem
occurs with any movie), nothing happenings apparently.

If I check the `ps aux` output, I can see three process (MPlayerX plus
two mplayer processes) running:

rarybook:~ rarylson$ ps aux | grep -i mplayer | grep -v grep

rarylson 55387 72.7 18.0 4074644 1510196 ?? S 3:19PM 0:51.09
/Applications/MPlayerX.app/Contents/Resources/MPlayerX.mplayer.bundle/Contents/Resources/x86_64/mplayer
-demuxer lavf -msglevel all=-1:global=4:cplayer=4:identify=4
-msgcharset noconv -noconfig all -slave -noflip-hebrew -nodouble -dr
-cache 5000 -prefer-ipv4 -osdlevel 0 -sub-fuzziness 1 -ao coreaudio
-vo corevideo:shared_buffer:buffer_name=MPlayerX_7FC4A0D513C0 -slang
en,eng,ch,chs,cht,ja,jpn -subpos 100 -subfont-osd-scale 8.0
-subfont-text-scale 8.0 -subfont
/Applications/MPlayerX.app/Contents/Resources/wqy-microhei.ttc -subcp
UTF-8 -subfont-autoscale 1 -embeddedfonts -overlapsub -lavdopts
threads=4 -ass -ass-color FFFFFF00 -ass-font-scale 1.0
-ass-border-color 26 -ass-force-style
Default.BorderStyle=1,Default.MarginV=12,Default.Outline=2 -noautosub
-volume 100.0 -channels 2 -af scaletempo -vf pp=l5/hb:a/vb:a/dr:a
-nodispclog -font-fblist
/System/Library/Fonts/LucidaGrande.ttc,/Library/Fonts/Hiragino Sans GB
W3.otf,/Library/Fonts/Arial Unicode.ttf -vc ffh264vda,
/Users/rarylson/Movies/Youtube/Musics/Adele - Set Fire To The Rain
(Live at The Royal Albert Hall).mp4

rarylson 54651 0.0 2.4 3928176 200704 ?? S 2:42PM 0:15.74
/Applications/MPlayerX.app/Contents/MacOS/MPlayerX

rarylson 55388 0.0 0.1 2496196 5372 ?? S 3:19PM 0:00.03
/Applications/MPlayerX.app/Contents/Resources/MPlayerX.mplayer.bundle/Contents/Resources/x86_64/mplayer
-demuxer lavf -msglevel all=-1:global=4:cplayer=4:identify=4
-msgcharset noconv -noconfig all -slave -noflip-hebrew -nodouble -dr
-cache 5000 -prefer-ipv4 -osdlevel 0 -sub-fuzziness 1 -ao coreaudio
-vo corevideo:shared_buffer:buffer_name=MPlayerX_7FC4A0D513C0 -slang
en,eng,ch,chs,cht,ja,jpn -subpos 100 -subfont-osd-scale 8.0
-subfont-text-scale 8.0 -subfont
/Applications/MPlayerX.app/Contents/Resources/wqy-microhei.ttc -subcp
UTF-8 -subfont-autoscale 1 -embeddedfonts -overlapsub -lavdopts
threads=4 -ass -ass-color FFFFFF00 -ass-font-scale 1.0
-ass-border-color 26 -ass-force-style
Default.BorderStyle=1,Default.MarginV=12,Default.Outline=2 -noautosub
-volume 100.0 -channels 2 -af scaletempo -vf pp=l5/hb:a/vb:a/dr:a
-nodispclog -font-fblist
/System/Library/Fonts/LucidaGrande.ttc,/Library/Fonts/Hiragino Sans GB
W3.otf,/Library/Fonts/Arial Unicode.ttf -vc ffh264vda,
/Users/rarylson/Movies/Youtube/Musics/Adele - Set Fire To The Rain
(Live at The Royal Albert Hall).mp4

Looking the `mplayer` command line, everything apparently is ok.
However, the `mplayer` memory consumption starts to increase time
after time: from 1G to 2G, and so on. After some time, it consumes all
the system memory and the system crashes.

If I check the syscalls made by the mplayer binary, I see a lot of
lines like open("FONT_NAME"), mmap and munmap syscalls:

rarybook:~ rarylson$ sudo dtruss -p 55388

SYSCALL(args)          = return
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
getppid(0x1E, 0x7FFF5FBFE388, 0x0)         = 55831 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
getppid(0x1E, 0x7FFF5FBFE388, 0x0)         = 55831 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
getppid(0x1E, 0x7FFF5FBFE388, 0x0)         = 55831 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
getppid(0x1E, 0x7FFF5FBFE388, 0x0)         = 55831 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0
sigaction(0x1E, 0x7FFF5FBFE388, 0x0)         = 0 0

rarybook:~ rarylson$ sudo dtruss -p 55387
SYSCALL(args) = return munmap(0x3D2F5000, 0x438702C) = 0 0
open("/System/Library/Fonts/PingFang.ttc\0", 0x0, 0x0) = 8 0
fcntl(0x8, 0x2, 0x1) = 0 0
fstat64(0x8, 0x7FFF5FBFDCE0, 0x1) = 0 0
mmap(0x0, 0x438702C, 0x1, 0x2, 0x8, 0x0) = 0x3D2F5000 0
close(0x8) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
munmap(0x3D2F5000, 0x438702C) = 0 0
open("/System/Library/Fonts/PingFang.ttc\0", 0x0, 0x0) = 8 0
fcntl(0x8, 0x2, 0x1) = 0 0 fstat64(0x8, 0x7FFF5FBFDCE0, 0x1) = 0 0
mmap(0x0, 0x438702C, 0x1, 0x2, 0x8, 0x0) = 0x3D2F5000 0
close(0x8) = 0 0 sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
munmap(0x3D2F5000, 0x438702C) = 0 0
open("/System/Library/Fonts/PingFang.ttc\0", 0x0, 0x0) = 8 0
fcntl(0x8, 0x2, 0x1) = 0 0
fstat64(0x8, 0x7FFF5FBFDCE0, 0x1) = 0 0
mmap(0x0, 0x438702C, 0x1, 0x2, 0x8, 0x0) = 0x3D2F5000 0
close(0x8) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
__disable_threadsignal(0x1, 0x0, 0x0) = 0 0
__disable_threadsignal(0x1, 0x0, 0x0) = 0 0
munmap(0x3D2F5000, 0x438702C) = 0 0
open("/System/Library/Fonts/PingFang.ttc\0", 0x0, 0x0) = 8 0
fcntl(0x8, 0x2, 0x1) = 0 0
fstat64(0x8, 0x7FFF5FBFDCE0, 0x1) = 0 0
mmap(0x0, 0x438702C, 0x1, 0x2, 0x8, 0x0) = 0x3D2F5000 0
close(0x8) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
munmap(0x3D2F5000, 0x438702C) = 0 0
open("/System/Library/Fonts/PingFang.ttc\0", 0x0, 0x0) = 8 0
fcntl(0x8, 0x2, 0x1) = 0 0
fstat64(0x8, 0x7FFF5FBFDCE0, 0x1) = 0 0
mmap(0x0, 0x438702C, 0x1, 0x2, 0x8, 0x0) = 0x3D2F5000 0
close(0x8) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0
sigprocmask(0x1, 0x0, 0x7FFF5FBFD9A0) = 0x0 0
sigaltstack(0x0, 0x7FFF5FBFD990, 0x7FFF5FBFD9A0) = 0 0

Even after a few minutes, syscalls like "open("/System/Library/Fonts/*
" calls are still being made.

The question is: How can I debug better whats is going on? Whats is
going on? How can I fix this? It's a mplayer problem? Or a MPlayerX
problem?

--
Rarylson Freitas