[chuck-users] 147th shred removed...segmentation fault? (Ryan Supak)
Spencer Salazar
spencer at ccrma.stanford.edu
Mon Jun 30 21:41:33 EDT 2014
Great, thanks!
On Mon, Jun 30, 2014 at 11:31 PM, Michael Heuer <heuermh at gmail.com> wrote:
> Hello Spencer,
>
> Your fix works for me for both this issue and issue #3 (chuck --probe
> seg fault).
>
> Thanks!
>
> michael
>
>
> On Sun, Jun 29, 2014 at 8:46 AM, Ryan Supak <ryansupak at gmail.com> wrote:
> > Hooray! rs
> >
> >
> > On Sunday, June 29, 2014, Spencer Salazar <spencer at ccrma.stanford.edu>
> > wrote:
> >>
> >> Hey y'all,
> >>
> >> Think I figured this out, the internal message buffer (the one that says
> >> "sporking shred ...") was overflowing and randomly overwriting other
> parts
> >> of memory, causing crashes for seemingly unrelated reasons. Anyways,
> with
> >> the fix that is in the git repo, I can't get Michael's example to crash
> >> anymore. An updated release to come shortly!
> >>
> >> spencer
> >>
> >>
> >>
> >> On Tue, Jun 24, 2014 at 9:20 PM, Ryan Supak <ryansupak at gmail.com>
> wrote:
> >>>
> >>> I was able to work around it by not doing any Sporking in code, instead
> >>> just updating global variables.
> >>>
> >>> But, yeah, definite issue here.
> >>> rs
> >>>
> >>>
> >>> On Tuesday, June 24, 2014, Michael Heuer <heuermh at gmail.com> wrote:
> >>>>
> >>>> On linux, my example works fine with 1.3.3.0
> >>>>
> >>>> ...
> >>>> [chuck](VM): removing shred: 35000 (spork~exp)...
> >>>> count 34998
> >>>> [chuck](VM): removing shred: 35001 (spork~exp)...
> >>>> count 34999
> >>>> ^C[chuck]: cleaning up...
> >>>>
> >>>> but not with 1.3.4.0 built with alsa support
> >>>>
> >>>> $ ./chuck --silent ~/working/lick/examples/dmxBug.ck
> >>>> [chuck](VM): removing shred: 2 (spork~exp)...
> >>>> count 0
> >>>> [chuck](VM): removing shred: 3 (spork~exp)...
> >>>> count 1
> >>>> [chuck](VM): removing shred: 4 (spork~exp)...
> >>>> count 2
> >>>> [chuck](VM): removing shred: 5 (spork~exp)...
> >>>> count 3
> >>>> [chuck](VM): removing shred: 6 (spork~exp)...
> >>>> count 4
> >>>> [chuck](VM): removing shred: 7 (spork~exp)...
> >>>> count 5
> >>>> [chuck](VM): removing shred: 8 (spork~exp)...
> >>>> count 6
> >>>> [chuck](VM): removing shred: 9 (spork~exp)...
> >>>> count 7
> >>>> [chuck](VM): removing shred: 10 (spork~exp)...
> >>>> count 8
> >>>> [chuck](VM): removing shred: 11 (spork~exp)...
> >>>> count 9
> >>>> [chuck](VM): removing shred: 12 (spork~exp)...
> >>>> count 10
> >>>> [chuck](VM): removing shred: 13 (spork~exp)...
> >>>> count 11
> >>>> [chuck](VM): removing shred: 14 (spork~exp)...
> >>>> count 12
> >>>> [chuck](VM): removing shred: 15 (spork~exp)...
> >>>> count 13
> >>>> [chuck](VM): removing shred: 16 (spork~exp)...
> >>>> count 14
> >>>> [chuck](VM): removing shred: 17 (spork~exp)...
> >>>> count 15
> >>>> [chuck](VM): removing shred: 18 (spork~exp)...
> >>>> count 16
> >>>> [chuck](VM): removing shred: 19 (spork~exp)...
> >>>> count 17
> >>>> [chuck](VM): removing shred: 20 (spork~exp)...
> >>>> count 18
> >>>> [chuck](VM): removing shred: 21 (spork~exp)...
> >>>> count 19
> >>>> [chuck](VM): removing shred: 22 (spork~exp)...
> >>>> count 20
> >>>> [chuck](VM): removing shred: 23 (spork~exp)...*** buffer overflow
> >>>> detected ***: ./chuck terminated
> >>>> ======= Backtrace: =========
> >>>> /lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7fd43586cf47]
> >>>> /lib/x86_64-linux-gnu/libc.so.6(+0x109e40)[0x7fd43586be40]
> >>>> /lib/x86_64-linux-gnu/libc.so.6(+0x108d13)[0x7fd43586ad13]
> >>>> ./chuck[0x41585a]
> >>>> ./chuck[0x41cabb]
> >>>> ./chuck[0x46d898]
> >>>> ./chuck[0x50517f]
> >>>> ./chuck[0x4245d0]
> >>>> ./chuck[0x418d0e]
> >>>> ./chuck[0x41dbd2]
> >>>> ./chuck[0x41e077]
> >>>> ./chuck[0x40b6fd]
> >>>>
> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7fd43578376d]
> >>>> ./chuck[0x40dc55]
> >>>> ======= Memory map: ========
> >>>> 00400000-0059d000 r-xp 00000000 08:03 269080
> >>>> /home/heuermh/bin/chuck-1.3.4.0/src/chuck
> >>>> 0079d000-0079e000 r--p 0019d000 08:03 269080
> >>>> /home/heuermh/bin/chuck-1.3.4.0/src/chuck
> >>>> 0079e000-007c5000 rw-p 0019e000 08:03 269080
> >>>> /home/heuermh/bin/chuck-1.3.4.0/src/chuck
> >>>> 007c5000-0084a000 rw-p 00000000 00:00 0
> >>>> 01db2000-020f9000 rw-p 00000000 00:00 0
> >>>> [heap]
> >>>> 7fd428000000-7fd428021000 rw-p 00000000 00:00 0
> >>>> 7fd428021000-7fd42c000000 ---p 00000000 00:00 0
> >>>> 7fd42f3d8000-7fd42f3d9000 ---p 00000000 00:00 0
> >>>> 7fd42f3d9000-7fd42fbd9000 rw-p 00000000 00:00 0
> >>>> 7fd42fbd9000-7fd42fbdd000 r-xp 00000000 08:03 802428
> >>>> /usr/lib/chuck/GVerb.chug
> >>>> 7fd42fbdd000-7fd42fddd000 ---p 00004000 08:03 802428
> >>>> /usr/lib/chuck/GVerb.chug
> >>>> 7fd42fddd000-7fd42fdde000 r--p 00004000 08:03 802428
> >>>> /usr/lib/chuck/GVerb.chug
> >>>> 7fd42fdde000-7fd42fddf000 rw-p 00005000 08:03 802428
> >>>> /usr/lib/chuck/GVerb.chug
> >>>> 7fd42fddf000-7fd42fde1000 r-xp 00000000 08:03 802423
> >>>> /usr/lib/chuck/KasFilter.chug
> >>>> 7fd42fde1000-7fd42ffe0000 ---p 00002000 08:03 802423
> >>>> /usr/lib/chuck/KasFilter.chug
> >>>> 7fd42ffe0000-7fd42ffe1000 r--p 00001000 08:03 802423
> >>>> /usr/lib/chuck/KasFilter.chug
> >>>> 7fd42ffe1000-7fd42ffe2000 rw-p 00002000 08:03 802423
> >>>> /usr/lib/chuck/KasFilter.chug
> >>>> 7fd42ffe2000-7fd42fff0000 r-xp 00000000 08:03 802430
> >>>> /usr/lib/chuck/Spectacle.chug
> >>>> 7fd42fff0000-7fd4301ef000 ---p 0000e000 08:03 802430
> >>>> /usr/lib/chuck/Spectacle.chug
> >>>> 7fd4301ef000-7fd4301f0000 r--p 0000d000 08:03 802430
> >>>> /usr/lib/chuck/Spectacle.chug
> >>>> 7fd4301f0000-7fd4301f1000 rw-p 0000e000 08:03 802430
> >>>> /usr/lib/chuck/Spectacle.chug
> >>>> 7fd4301f1000-7fd430209000 r-xp 00000000 08:03 3411496
> >>>> /lib/x86_64-linux-gnu/libresolv-2.15.so
> >>>> 7fd430209000-7fd430409000 ---p 00018000 08:03 3411496
> >>>> /lib/x86_64-linux-gnu/libresolv-2.15.so
> >>>> 7fd430409000-7fd43040a000 r--p 00018000 08:03 3411496
> >>>> /lib/x86_64-linux-gnu/libresolv-2.15.so
> >>>> 7fd43040a000-7fd43040b000 rw-p 00019000 08:03 3411496
> >>>> /lib/x86_64-linux-gnu/libresolv-2.15.so
> >>>> 7fd43040b000-7fd43040d000 rw-p 00000000 00:00 0
> >>>> 7fd43040d000-7fd430424000 r-xp 00000000 08:03 3411602
> >>>> /lib/x86_64-linux-gnu/libnsl-2.15.so
> >>>> 7fd430424000-7fd430623000 ---p 00017000 08:03 3411602
> >>>> /lib/x86_64-linux-gnu/libnsl-2.15.so
> >>>> 7fd430623000-7fd430624000 r--p 00016000 08:03 3411602
> >>>> /lib/x86_64-linux-gnu/libnsl-2.15.so
> >>>> 7fd430624000-7fd430625000 rw-p 00017000 08:03 3411602
> >>>> /lib/x86_64-linux-gnu/libnsl-2.15.so
> >>>> 7fd430625000-7fd430627000 rw-p 00000000 00:00 0
> >>>> 7fd430627000-7fd43062c000 r-xp 00000000 08:03 663153
> >>>> /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
> >>>> 7fd43062c000-7fd43082b000 ---p 00005000 08:03 663153
> >>>> /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
> >>>> 7fd43082b000-7fd43082c000 r--p 00004000 08:03 663153
> >>>> /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
> >>>> 7fd43082c000-7fd43082d000 rw-p 00005000 08:03 663153
> >>>> /usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
> >>>> 7fd43082d000-7fd43082f000 r-xp 00000000 08:03 663140
> >>>> /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0
> >>>> 7fd43082f000-7fd430a2e000 ---p 00002000 08:03 663140
> >>>> /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0
> >>>> 7fd430a2e000-7fd430a2f000 r--p 00001000 08:03 663140
> >>>> /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0
> >>>> 7fd430a2f000-7fd430a30000 rw-p 00002000 08:03 663140
> >>>> /usr/lib/x86_64-linux-gnu/libXau.so.6.0.0
> >>>> 7fd430a30000-7fd430a35000 r-xp 00000000 08:03 663205
> >>>> /usr/lib/x86_64-linux-gnu/libasyncns.so.0.3.1
> >>>> 7fd430a35000-7fd430c34000 ---p 00005000 08:03 663205
> >>>> /usr/lib/x86_64-linux-gnu/libasyncns.so.0.3.1
> >>>> 7fd430c34000-7fd430c35000 r--p 00004000 08:03 663205
> >>>> /usr/lib/x86_64-linux-gnu/libasyncns.so.0.3.1
> >>>> 7fd430c35000-7fd430c36000 rw-p 00005000 08:03 663205
> >>>> /usr/lib/x86_64-linux-gnu/libasyncns.so.0.3.1
> >>>> 7fd430c36000-7fd430c3e000 r-xp 00000000 08:03 3411651
> >>>> /lib/x86_64-linux-gnu/libwrap.so.0.7.6
> >>>> 7fd430c3e000-7fd430e3d000 ---p 00008000 08:03 3411651
> >>>> /lib/x86_64-linux-gnu/libwrap.so.0.7.6
> >>>> 7fd430e3d000-7fd430e3e000 r--p 00007000 08:03 3411651
> >>>> /lib/x86_64-linux-gnu/libwrap.so.0.7.6
> >>>> 7fd430e3e000-7fd430e3f000 rw-p 00008000 08:03 3411651
> >>>> /lib/x86_64-linux-gnu/libwrap.so.0.7.6
> >>>> 7fd430e3f000-7fd430e5c000 r-xp 00000000 08:03 657105
> >>>> /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0
> >>>> 7fd430e5c000-7fd43105b000 ---p 0001d000 08:03 657105
> >>>> /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0
> >>>> 7fd43105b000-7fd43105c000 r--p 0001c000 08:03 657105
> >>>> /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0
> >>>> 7fd43105c000-7fd43105d000 rw-p 0001d000 08:03 657105
> >>>> /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0
> >>>> 7fd43105d000-7fd431064000 r-xp 00000000 08:03 663531
> >>>> /usr/lib/x86_64-linux-gnu/libjson.so.0.0.1
> >>>> 7fd431064000-7fd431263000 ---p 00007000 08:03 663531
> >>>> /usr/lib/x86_64-linux-gnu/libjson.so.0.0.1
> >>>> 7fd431263000-7fd431264000 r--p 00006000 08:03 663531
> >>>> /usr/lib/x86_64-linux-gnu/libjson.so.0.0.1
> >>>> 7fd431264000-7fd431265000 rw-p 00007000 08:03 663531
> >>>> /usr/lib/x86_64-linux-gnu/libjson.so.0.0.1
> >>>> 7fd431265000-7fd431287000 r-xp 00000000 08:03 3411639
> >>>> /lib/x86_64-linux-gnu/libtinfo.so.5.9
> >>>> 7fd431287000-7fd431487000 ---p 00022000 08:03 3411639
> >>>> /lib/x86_64-linux-gnu/libtinfo.so.5.9
> >>>> 7fd431487000-7fd43148b000 r--p 00022000 08:03 3411639
> >>>> /lib/x86_64-linux-gnu/libtinfo.so.5.9
> >>>> 7fd43148b000-7fd43148c000 rw-p 00026000 08:03 3411639
> >>>> /lib/x86_64-linux-gnu/libtinfo.so.5.9
> >>>> 7fd43148c000-7fd4314e8000 r-xp 00000000 08:03 662027
> >>>> /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
> >>>> 7fd4314e8000-7fd4316e8000 ---p 0005c000 08:03 662027
> >>>> /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
> >>>> 7fd4316e8000-7fd4316e9000 r--p 0005c000 08:03 662027
> >>>> /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
> >>>> 7fd4316e9000-7fd4316ea000 rw-p 0005d000 08:03 662027
> >>>> /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
> >>>> 7fd4316ea000-7fd431730000 r-xp 00000000 08:03 661818
> >>>> /usr/lib/x86_64-linux-gnu/libpulse.so.0.13.5
> >>>> 7fd431730000-7fd431930000 ---p 00046000 08:03 661818
> >>>> /usr/lib/x86_64-linux-gnu/libpulse.so.0.13.5
> >>>> 7fd431930000-7fd431931000 r--p 00046000 08:03 661818
> >>>> /usr/lib/x86_64-linux-gnu/libpulse.so.0.13.5
> >>>> 7fd431931000-7fd431932000 rw-p 00047000 08:03 661818
> >>>> /usr/lib/x86_64-linux-gnu/libpulse.so.0.13.5
> >>>> 7fd431932000-7fd43196e000 r-xp 00000000 08:03 3411615
> >>>> /lib/x86_64-linux-gnu/libpcre.so.3.12.1
> >>>> 7fd43196e000-7fd431b6d000 ---p 0003c000 08:03 3411615
> >>>> /lib/x86_64-linux-gnu/libpcre.so.3.12.1
> >>>> 7fd431b6d000-7fd431b6e000 r--p 0003b000 08:03 3411615
> >>>> /lib/x86_64-linux-gnu/libpcre.so.3.12.1
> >>>> 7fd431b6e000-7fd431b6f000 rw-p 0003c000 08:03 3411615
> >>>> /lib/x86_64-linux-gnu/libpcre.so.3.12.1
> >>>> 7fd431b6f000-7fd431ba8000 r-xp 00000000 08:03 3411625
> >>>> /lib/x86_64-linux-gnu/libreadline.so.6.2
> >>>> 7fd431ba8000-7fd431da8000 ---p 00039000 08:03 3411625
> >>>> /lib/x86_64-linux-gnu/libreadline.so.6.2
> >>>> 7fd431da8000-7fd431daa000 r--p 00039000 08:03 3411625
> >>>> /lib/x86_64-linux-gnu/libreadline.so.6.2
> >>>> 7fd431daa000-7fd431db0000 rw-p 0003b000 08:03 3411625
> >>>> /lib/x86_64-linux-gnu/libreadline.so.6.2
> >>>> 7fd431db0000-7fd431db1000 rw-p 00000000 00:00 0
> >>>> 7fd431db1000-7fd431df3000 r-xp 00000000 08:03 3407910
> >>>> /lib/x86_64-linux-gnu/libdbus-1.so.3.5.8
> >>>> 7fd431df3000-7fd431ff3000 ---p 00042000 08:03 3407910
> >>>> /lib/x86_64-linux-gnu/libdbus-1.so.3.5.8
> >>>> 7fd431ff3000-7fd431ff4000 r--p 00042000 08:03 3407910
> >>>> /lib/x86_64-linux-gnu/libdbus-1.so.3.5.8
> >>>> 7fd431ff4000-7fd431ff5000 rw-p 00043000 08:03 3407910
> >>>> /lib/x86_64-linux-gnu/libdbus-1.so.3.5.8
> >>>> 7fd431ff5000-7fd431ff8000 r-xp 00000000 08:03 662026
> >>>> /usr/lib/x86_64-linux-gnu/libpulse-simple.so.0.0.3
> >>>> 7fd431ff8000-7fd4321f7000 ---p 00003000 08:03 662026
> >>>> /usr/lib/x86_64-linux-gnu/libpulse-simple.so.0.0.3
> >>>> 7fd4321f7000-7fd4321f8000 r--p 00002000 08:03 662026
> >>>> /usr/lib/x86_64-linux-gnu/libpulse-simple.so.0.0.3
> >>>> 7fd4321f8000-7fd4321f9000 rw-p 00003000 08:03 662026
> >>>> /usr/lib/x86_64-linux-gnu/libpulse-simple.so.0.0.3
> >>>> 7fd4321f9000-7fd43220c000 r-xp 00000000 08:03 656534
> >>>> /usr/lib/x86_64-linux-gnu/libjack.so.0.0.28
> >>>> 7fd43220c000-7fd43240b000 ---p 00013000 08:03 656534
> >>>> /usr/lib/x86_64-linux-gnu/libjack.so.0.0.28
> >>>> 7fd43240b000-7fd43240c000 r--p 00012000 08:03 656534
> >>>> /usr/lib/x86_64-linux-gnu/libjack.so.0.0.28
> >>>> 7fd43240c000-7fd43240d000 rw-p 00013000 08:03 656534
> >>>> /usr/lib/x86_64-linux-gnu/libjack.so.0.0.28
> >>>> 7fd43240d000-7fd432416000 rw-p 00000000 00:00 0
> >>>> 7fd432416000-7fd432508000 r-xp 00000000 08:03 3407908
> >>>> /lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.4
> >>>> 7fd432508000-7fd432708000 ---p 000f2000 08:03 3407908
> >>>> /lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.4
> >>>> 7fd432708000-7fd432709000 r--p 000f2000 08:03 3407908
> >>>> /lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.4
> >>>> 7fd432709000-7fd43270a000 rw-p 000f3000 08:03 3407908
> >>>> /lib/x86_64-linux-gnu/libglib-2.0.so.0.3200.4
> >>>> 7fd43270a000-7fd43270b000 rw-p 00000000 00:00 0
> >>>> 7fd43270b000-7fd43275f000 r-xp 00000000 08:03 671207
> >>>> /usr/lib/x86_64-linux-gnu/libfluidsynth.so.1.5.1
> >>>> 7fd43275f000-7fd43295f000 ---p 00054000 08:03 671207
> >>>> /usr/lib/x86_64-linux-gnu/libfluidsynth.so.1.5.1
> >>>> 7fd43295f000-7fd432960000 r--p 00054000 08:03 671207
> >>>> /usr/lib/x86_64-linux-gnu/libfluidsynth.so.1.5.1
> >>>> 7fd432960000-7fd432962000 rw-p 00055000 08:03 671207
> >>>> /usr/lib/x86_64-linux-gnu/libfluidsynth.so.1.5.1
> >>>> 7fd432962000-7fd4329d0000 rw-p 00000000 00:00 0
> >>>> 7fd4329d0000-7fd4329d2000 r-xp 00000000 08:03 802431
> >>>> /usr/lib/chuck/FluidSynth.chug
> >>>> 7fd4329d2000-7fd432bd1000 ---p 00002000 08:03 802431
> >>>> /usr/lib/chuck/FluidSynth.chug
> >>>> 7fd432bd1000-7fd432bd2000 r--p 00001000 08:03 802431
> >>>> /usr/lib/chuck/FluidSynth.chug
> >>>> 7fd432bd2000-7fd432bd3000 rw-p 00002000 08:03 802431
> >>>> /usr/lib/chuck/FluidSynth.chug
> >>>> 7fd432bd3000-7fd432bda000 r-xp 00000000 08:03 796739
> >>>> /usr/lib/chuck/Sigmund.chug
> >>>> 7fd432bda000-7fd432dd9000 ---p 00007000 08:03 796739
> >>>> /usr/lib/chuck/Sigmund.chug
> >>>> 7fd432dd9000-7fd432dda000 r--p 00006000 08:03 796739
> >>>> /usr/lib/chuck/Sigmund.chug
> >>>> 7fd432dda000-7fd432ddb000 rw-p 00007000 08:03 796739
> >>>> /usr/lib/chuck/Sigmund.chug
> >>>> 7fd432ddb000-7fd432de6000 r-xp 00000000 08:03 802429
> >>>> /usr/lib/chuck/Mesh2D.chug
> >>>> 7fd432de6000-7fd432fe5000 ---p 0000b000 08:03 802429
> >>>> /usr/lib/chuck/Mesh2D.chug
> >>>> 7fd432fe5000-7fd432fe6000 r--p 0000a000 08:03 802429
> >>>> /usr/lib/chuck/Mesh2D.chug
> >>>> 7fd432fe6000-7fd432fe7000 rw-p 0000b000 08:03 802429
> >>>> /usr/lib/chuck/Mesh2D.chug
> >>>> 7fd432fe7000-7fd432fe9000 r-xp 00000000 08:03 802426
> >>>> /usr/lib/chuck/PanN.chug
> >>>> 7fd432fe9000-7fd4331e9000 ---p 00002000 08:03 802426
> >>>> /usr/lib/chuck/PanN.chug
> >>>> 7fd4331e9000-7fd4331ea000 r--p 00002000 08:03 802426
> >>>> /usr/lib/chuck/PanN.chug
> >>>> 7fd4331ea000-7fd4331eb000 rw-p 00003000 08:03 802426
> >>>> /usr/lib/chuck/PanN.chug
> >>>> 7fd4331eb000-7fd4331ed000 r-xp 00000000 08:03 797714
> >>>> /usr/lib/chuck/ExpDelay.chug
> >>>> 7fd4331ed000-7fd4333ed000 ---p 00002000 08:03 797714
> >>>> /usr/lib/chuck/ExpDelay.chug
> >>>> 7fd4333ed000-7fd4333ee000 r--p 00002000 08:03 797714
> >>>> /usr/lib/chuck/ExpDelay.chug
> >>>> 7fd4333ee000-7fd4333ef000 rw-p 00003000 08:03 797714
> >>>> /usr/lib/chuck/ExpDelay.chug
> >>>> 7fd4333ef000-7fd4333f3000 r-xp 00000000 08:03 802427
> >>>> /usr/lib/chuck/PitchTrack.chug
> >>>> 7fd4333f3000-7fd4335f2000 ---p 00004000 08:03 802427
> >>>> /usr/lib/chuck/PitchTrack.chug
> >>>> 7fd4335f2000-7fd4335f3000 r--p 00003000 08:03 802427
> >>>> /usr/lib/chuck/PitchTrack.chug
> >>>> 7fd4335f3000-7fd4335f4000 rw-p 00004000 08:03 802427
> >>>> /usr/lib/chuck/PitchTrack.chug
> >>>> 7fd4335f4000-7fd4335f8000 r-xp 00000000 08:03 799399
> >>>> /usr/lib/chuck/Ladspa.chug
> >>>> 7fd4335f8000-7fd4337f7000 ---p 00004000 08:03 799399
> >>>> /usr/lib/chuck/Ladspa.chug
> >>>> 7fd4337f7000-7fd4337f8000 r--p 00003000 08:03 799399
> >>>> /usr/lib/chuck/Ladspa.chug
> >>>> 7fd4337f8000-7fd4337f9000 rw-p 00004000 08:03 799399
> >>>> /usr/lib/chuck/Ladspa.chug
> >>>> 7fd4337f9000-7fd4337fa000 r-xp 00000000 08:03 802424
> >>>> /usr/lib/chuck/MagicSine.chug
> >>>> 7fd4337fa000-7fd4339f9000 ---p 00001000 08:03 802424
> >>>> /usr/lib/chuck/MagicSine.chug
> >>>> 7fd4339f9000-7fd4339fa000 r--p 00000000 08:03 802424
> >>>> /usr/lib/chuck/MagicSine.chug
> >>>> 7fd4339fa000-7fd4339fb000 rw-p 00001000 08:03 802424
> >>>> /usr/lib/chuck/MagicSine.chug
> >>>> 7fd4339fb000-7fd4339fe000 r-xp 00000000 08:03 802421
> >>>> /usr/lib/chuck/ABSaturator.chug
> >>>> 7fd4339fe000-7fd433bfd000 ---p 00003000 08:03 802421
> >>>> /usr/lib/chuck/ABSaturator.chug
> >>>> 7fd433bfd000-7fd433bfe000 r--p 00002000 08:03 802421
> >>>> /usr/lib/chuck/ABSaturator.chug
> >>>> 7fd433bfe000-7fd433bff000 rw-p 00003000 08:03 802421
> >>>> /usr/lib/chuck/ABSaturator.chug
> >>>> 7fd433bff000-7fd433c00000 r-xp 00000000 08:03 802422
> >>>> /usr/lib/chuck/Bitcrusher.chug
> >>>> 7fd433c00000-7fd433e00000 ---p 00001000 08:03 802422
> >>>> /usr/lib/chuck/Bitcrusher.chug
> >>>> 7fd433e00000-7fd433e01000 r--p 00001000 08:03 802422
> >>>> /usr/lib/chuck/Bitcrusher.chug
> >>>> 7fd433e01000-7fd433e02000 rw-p 00002000 08:03 802422
> >>>> /usr/lib/chuck/Bitcrusher.chug
> >>>> 7fd433e02000-7fd433e05000 r-xp 00000000 08:03 802425
> >>>> /usr/lib/chuck/FIR.chug
> >>>> 7fd433e05000-7fd434004000 ---p 00003000 08:03 802425
> >>>> /usr/lib/chuck/FIR.chug
> >>>> 7fd434004000-7fd434005000 r--p 00002000 08:03 802425
> >>>> /usr/lib/chuck/FIR.chug
> >>>> 7fd434005000-7fd434006000 rw-p 00003000 08:03 802425
> >>>> /usr/lib/chuck/FIR.chug
> >>>> 7fd434006000-7fd43400b000 r-xp 00000000 08:03 802432
> >>>> /usr/lib/chuck/Elliptic.chug
> >>>> 7fd43400b000-7fd43420a000 ---p 00005000 08:03 802432
> >>>> /usr/lib/chuck/Elliptic.chug
> >>>> 7fd43420a000-7fd43420b000 r--p 00004000 08:03 802432
> >>>> /usr/lib/chuck/Elliptic.chug
> >>>> 7fd43420b000-7fd43420c000 rw-p 00005000 08:03 802432
> >>>> /usr/lib/chuck/Elliptic.chug
> >>>> 7fd43420c000-7fd43420d000 rw-p 00000000 00:00 0
> >>>> 7fd43420d000-7fd43420e000 ---p 00000000 00:00 0
> >>>> 7fd43420e000-7fd434a0e000 rw-p 00000000 00:00 0
> >>>> 7fd434a0e000-7fd434a14000 r-xp 00000000 08:03 663601
> >>>> /usr/lib/x86_64-linux-gnu/libogg.so.0.7.1
> >>>> 7fd434a14000-7fd434c13000 ---p 00006000 08:03 663601
> >>>> /usr/lib/x86_64-linux-gnu/libogg.so.0.7.1
> >>>> 7fd434c13000-7fd434c14000 r--p 00005000 08:03 663601
> >>>> /usr/lib/x86_64-linux-gnu/libogg.so.0.7.1
> >>>> 7fd434c14000-7fd434c15000 rw-p 00006000 08:03 663601
> >>>> /usr/lib/x86_64-linux-gnu/libogg.so.0.7.1
> >>>> 7fd434c15000-7fd434c40000 r-xp 00000000 08:03 663780
> >>>> /usr/lib/x86_64-linux-gnu/libvorbis.so.0.4.5
> >>>> 7fd434c40000-7fd434e3f000 ---p 0002b000 08:03 663780
> >>>> /usr/lib/x86_64-linux-gnu/libvorbis.so.0.4.5
> >>>> 7fd434e3f000-7fd434e40000 r--p 0002a000 08:03 663780
> >>>> /usr/lib/x86_64-linux-gnu/libvorbis.so.0.4.5
> >>>> 7fd434e40000-7fd434e41000 rw-p 0002b000 08:03 663780
> >>>> /usr/lib/x86_64-linux-gnu/libvorbis.so.0.4.5
> >>>> 7fd434e41000-7fd4350f4000 r-xp 00000000 08:03 663782
> >>>> /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.8
> >>>> 7fd4350f4000-7fd4352f3000 ---p 002b3000 08:03 663782
> >>>> /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.8
> >>>> 7fd4352f3000-7fd43530f000 r--p 002b2000 08:03 663782
> >>>> /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.8
> >>>> 7fd43530f000-7fd435310000 rw-p 002ce000 08:03 663782
> >>>> /usr/lib/x86_64-linux-gnu/libvorbisenc.so.2.0.8
> >>>> 7fd435310000-7fd435358000 r-xp 00000000 08:03 663073
> >>>> /usr/lib/x86_64-linux-gnu/libFLAC.so.8.2.0
> >>>> 7fd435358000-7fd435558000 ---p 00048000 08:03 663073
> >>>> /usr/lib/x86_64-linux-gnu/libFLAC.so.8.2.0Aborted (core dumped)
> >>>>
> >>>> I suppose we should move this to an issue on github at some point. . .
> >>>>
> >>>> michael
> >>>>
> >>>>
> >>>> On Mon, Jun 23, 2014 at 9:17 PM, Ryan Supak <ryansupak at gmail.com>
> wrote:
> >>>> > Yuck, it behaves badly on Mac, but even worse on RPi. I get to maybe
> >>>> > 30
> >>>> > shreds before it tanks... rs
> >>>> >
> >>>> >
> >>>> > On Mon, Jun 23, 2014 at 5:33 PM, Michael Heuer <heuermh at gmail.com>
> >>>> > wrote:
> >>>> >>
> >>>> >> Oops, forgot to increment count
> >>>> >>
> >>>> >> <<<"count", count++>>>;
> >>>> >>
> >>>> >> ...
> >>>> >>
> >>>> >> $ chuck --silent examples/dmxBug.ck
> >>>> >> [chuck](VM): removing shred: 2 (spork~exp)...
> >>>> >> count 0
> >>>> >> [chuck](VM): removing shred: 3 (spork~exp)...
> >>>> >> count 1
> >>>> >> ...
> >>>> >> [chuck](VM): removing shred: 144 (spork~exp)...
> >>>> >> count 142
> >>>> >> [chuck](VM): removing shred: 145 (spork~exp)...
> >>>> >> count 143
> >>>> >> [chuck](VM): removing shred: 146 (spork~exp)...
> >>>> >> Segmentation fault: 11
> >>>> >>
> >>>> >>
> >>>> >> On Mon, Jun 23, 2014 at 5:31 PM, Michael Heuer <heuermh at gmail.com>
> >>>> >> wrote:
> >>>> >> > Interesting find, even this simple example blows for me
> >>>> >> >
> >>>> >> > dmxBug.ck:
> >>>> >> >
> >>>> >> > fun void blink()
> >>>> >> > {
> >>>> >> > while (true)
> >>>> >> > {
> >>>> >> > 50::ms => now;
> >>>> >> > }
> >>>> >> > }
> >>>> >> >
> >>>> >> > Shred shred;
> >>>> >> > spork ~ blink() @=> shred;
> >>>> >> >
> >>>> >> > 0 => int count;
> >>>> >> >
> >>>> >> > while (true)
> >>>> >> > {
> >>>> >> > 200::ms => now;
> >>>> >> > shred.id() => Machine.remove;
> >>>> >> > spork ~ blink() @=> shred;
> >>>> >> > <<<"count", count>>>;
> >>>> >> > }
> >>>> >> >
> >>>> >> > $ chuck --silent examples/dmxBug.ck
> >>>> >> > ...
> >>>> >> > [chuck](VM): removing shred: 144 (spork~exp)...
> >>>> >> > count 0
> >>>> >> > [chuck](VM): removing shred: 145 (spork~exp)...
> >>>> >> > count 0
> >>>> >> > [chuck](VM): removing shred: 146 (spork~exp)...
> >>>> >> > Segmentation fault: 11
> >>>> >> >
> >>>> >> > michael
> >>>> >> >
> >>>> >> >
> >>>> >> > On Mon, Jun 23, 2014 at 5:17 PM, Ryan Supak <ryansupak at gmail.com
> >
> >>>> >> > wrote:
> >>>> >> >> Update: I eliminated everything I could from the Shreds that
> were
> >>>> >> >> being
> >>>> >> >> Sporked, and I still get the exact same error (at exactly 147
> >>>> >> >> Shreds.)
> >>>> >> >>
> >>>> >> >> Here is what I shortened the Shreds to:
> >>>> >> >>
> >>>> >> >> fun void Blink()
> >>>> >> >> {
> >>>> >> >> while( true )
> >>>> >> >> {
> >>>> >> >> 50::ms => now;
> >>>> >> >> }
> >>>> >> >> }
> >>>> >> >>
> >>>> >> >> fun void LFOMod()
> >>>> >> >> {
> >>>> >> >> while( true )
> >>>> >> >> {
> >>>> >> >> 50::ms => now;
> >>>> >> >> }
> >>>> >> >> }
> >>>> >> >>
> >>>> >> >>
> >>>> >> >> On Mon, Jun 23, 2014 at 4:22 PM, Ryan Supak <
> ryansupak at gmail.com>
> >>>> >> >> wrote:
> >>>> >> >>>
> >>>> >> >>> Thanks for the thorough reply. I'm doing one safer, even than
> >>>> >> >>> "voice
> >>>> >> >>> stealing": each Spork is, at most, reconfiguring a single
> global
> >>>> >> >>> oscillator.
> >>>> >> >>>
> >>>> >> >>> Attached is the entire source. Lines 128-142 contain
> >>>> >> >>> initialization
> >>>> >> >>> code
> >>>> >> >>> that creates a Shred to make an LED blink by sending a MIDI
> >>>> >> >>> message
> >>>> >> >>> within a
> >>>> >> >>> time loop, and another Shred that sets the frequency of an LFO,
> >>>> >> >>> polls
> >>>> >> >>> it
> >>>> >> >>> every ten milliseconds, and sends some Serial output based on
> the
> >>>> >> >>> LFO
> >>>> >> >>> position.
> >>>> >> >>>
> >>>> >> >>> Anytime that the parameters controlling the blinking rate and
> the
> >>>> >> >>> LFO
> >>>> >> >>> rate/phase have occasion to change (when MIDI events come in to
> >>>> >> >>> change
> >>>> >> >>> them), the "old" Shreds are Machine.Remove'd and they're
> >>>> >> >>> recreated
> >>>> >> >>> immediately following. You can see this at lines 343 and 589.
> >>>> >> >>>
> >>>> >> >>> Notice that the LFOMod function and the Blink function aren't
> >>>> >> >>> creating
> >>>> >> >>> anything new (with the exception of local arguments being
> >>>> >> >>> instantiated), but
> >>>> >> >>> if you think those local arguments could be causing my problem
> >>>> >> >>> I'll
> >>>> >> >>> eliminate them too.
> >>>> >> >>>
> >>>> >> >>> Please see the attached.
> >>>> >> >>> rs
> >>>> >> >>>
> >>>> >> >>>
> >>>> >> >>> On Mon, Jun 23, 2014 at 11:59 AM, Perry R Cook
> >>>> >> >>> <prc at cs.princeton.edu>
> >>>> >> >>> wrote:
> >>>> >> >>>>
> >>>> >> >>>> I have lots of programs that spork hundreds or thousands
> >>>> >> >>>> of shreds without this error. So, without seeing your
> >>>> >> >>>> code, my guesses (and questions) are as follows:
> >>>> >> >>>>
> >>>> >> >>>> Are you running this on a small memory architecture? Since
> >>>> >> >>>> you say headless, I'm guessing maybe Raspberry Pi? It
> >>>> >> >>>> could be that you're running out of memory, so see next
> >>>> >> >>>> question.
> >>>> >> >>>>
> >>>> >> >>>> Does the shred that you're sporking declare new UGs or
> >>>> >> >>>> require memory to be allocated (arrays, lots of string
> >>>> >> >>>> manipulation, etc.)? In general, this is a bad idea if you
> >>>> >> >>>> can avoid it. ChucK does no garbage collection, which
> >>>> >> >>>> means that you need to be cautious about declaring memory.
> >>>> >> >>>>
> >>>> >> >>>> So even a shred as simple as:
> >>>> >> >>>>
> >>>> >> >>>> fun void mySine() {
> >>>> >> >>>> SinOsc s => dac;
> >>>> >> >>>> Math.random2f(100,1000) => s.freq;
> >>>> >> >>>> second => now;
> >>>> >> >>>> s =< dac;
> >>>> >> >>>> }
> >>>> >> >>>>
> >>>> >> >>>> will eat up memory, because even though the SinOsc
> >>>> >> >>>> is unchucked and never computes again, the memory
> >>>> >> >>>> for that structure is still around. We want, someday
> >>>> >> >>>> to make ChucK a proper garbage collecting language,
> >>>> >> >>>> but it's hard, especially for real-time systems.
> >>>> >> >>>>
> >>>> >> >>>> If this turns out to be your issue, then one way to
> >>>> >> >>>> handle this is to make a global pool of fixed
> >>>> >> >>>> resources and have your shred grab from that.
> >>>> >> >>>> Like classic "round robin voice stealing" in
> >>>> >> >>>> synthesizers:
> >>>> >> >>>>
> >>>> >> >>>> SinOsc s[100];
> >>>> >> >>>> 0 => int next2Use;
> >>>> >> >>>>
> >>>> >> >>>> fun void mySine() {
> >>>> >> >>>> next2Use => int thisOne;
> >>>> >> >>>> 1 +=> next2Use;
> >>>> >> >>>> if (next2Use > 99) 0 => next2Use;
> >>>> >> >>>> s[thisOne] => dac;
> >>>> >> >>>> Math.random2f(100,1000) => s[thisOne].freq;
> >>>> >> >>>> second => now;
> >>>> >> >>>> s[thisOne] =< dac;
> >>>> >> >>>> }
> >>>> >> >>>>
> >>>> >> >>>> // to test:
> >>>> >> >>>> while (1) {
> >>>> >> >>>> Math.random2f(0.01,0.1) :: second => now;
> >>>> >> >>>> spork ~ mySine();
> >>>> >> >>>> }
> >>>> >> >>>>
> >>>> >> >>>> I just fired up a few dozen of these running in
> >>>> >> >>>> parallel, VM showed 2600 total shreds running,
> >>>> >> >>>> no problem (and no clicks or dropouts!!).
> >>>> >> >>>>
> >>>> >> >>>> Hope this helps, if none of this applies, then you
> >>>> >> >>>> may have discovered a strange bug. Source code please,
> >>>> >> >>>> and we can all scratch our heads on it.
> >>>> >> >>>>
> >>>> >> >>>> Thanx!! PRC
> >>>> >> >>>>
> >>>> >> >>>>
> >>>> >> >>>> Today's Topics:
> >>>> >> >>>>
> >>>> >> >>>> 1. 147th shred removed...segmentation fault? (Ryan Supak)
> >>>> >> >>>> _______________________________________________
> >>>> >> >>>> chuck-users mailing list
> >>>> >> >>>> chuck-users at lists.cs.princeton.edu
> >>>> >> >>>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >>>> >> >>>
> >>>> >> >>>
> >>>> >> >>
> >>>> >> >>
> >>>> >> >> _______________________________________________
> >>>> >> >> chuck-users mailing list
> >>>> >> >> chuck-users at lists.cs.princeton.edu
> >>>> >> >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >>>> >> >>
> >>>> >> _______________________________________________
> >>>> >> chuck-users mailing list
> >>>> >> chuck-users at lists.cs.princeton.edu
> >>>> >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >>>> >
> >>>> >
> >>>> >
> >>>> > _______________________________________________
> >>>> > chuck-users mailing list
> >>>> > chuck-users at lists.cs.princeton.edu
> >>>> > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >>>> >
> >>>> _______________________________________________
> >>>> chuck-users mailing list
> >>>> chuck-users at lists.cs.princeton.edu
> >>>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >>>
> >>>
> >>> _______________________________________________
> >>> chuck-users mailing list
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> >>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >>>
> >>
> >
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> > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
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