gimp threw a segfault while scaling an image

[Jesus Hernandez Serda]

Adding the log:

```
GNU Image Manipulation Program version 2.10.8
git-describe: GIMP_2_10_6-294-ga967e8d2c2
C compiler:
 Using built-in specs.
 COLLECT_GCC=gcc
 COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
 OFFLOAD_TARGET_NAMES=nvptx-none
 OFFLOAD_TARGET_DEFAULT=1
 Target: x86_64-linux-gnu
 Configured with: ../src/configure -v --with-pkgversion='Ubuntu 8.2.0-13ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
 Thread model: posix
 gcc version 8.2.0 (Ubuntu 8.2.0-13ubuntu1)

using GEGL version 0.4.14 (compiled against version 0.4.12)
using GLib version 2.62.4 (compiled against version 2.58.1)
using GdkPixbuf version 2.40.0 (compiled against version 2.38.0)
using GTK+ version 2.24.32 (compiled against version 2.24.32)
using Pango version 1.42.3 (compiled against version 1.42.3)
using Fontconfig version 2.13.1 (compiled against version 2.13.0)
using Cairo version 1.16.0 (compiled against version 1.16.0)

```
> fatal error: Segmentation fault

Stack trace:
```

# Stack traces obtained from PID 3025 - Thread 3025 #

[New LWP 3028]
[New LWP 3029]
[New LWP 3030]
[New LWP 3034]
[New LWP 3035]
[New LWP 3046]
[New LWP 3047]
[New LWP 3048]
[New LWP 3049]
[New LWP 3050]
[New LWP 3051]
[New LWP 3052]
[New LWP 3053]
[New LWP 3054]
[New LWP 3055]
[New LWP 3056]
[New LWP 3149]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__libc_read (nbytes=256, buf=0x7ffd945f9bd0, fd=36) at ../sysdeps/unix/sysv/linux/read.c:26
  Id Target Id Frame
* 1 Thread 0x7f3077647e00 (LWP 3025) "gimp-2.10" __libc_read (nbytes=256, buf=0x7ffd945f9bd0, fd=36) at ../sysdeps/unix/sysv/linux/read.c:26
  2 Thread 0x7f3076c71700 (LWP 3028) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  3 Thread 0x7f3076470700 (LWP 3029) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  4 Thread 0x7f3075c6f700 (LWP 3030) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  5 Thread 0x7f306609f700 (LWP 3034) "gmain" 0x00007f30785e9c2f in __GI___poll (fds=0x564bd51a84f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  6 Thread 0x7f30668a0700 (LWP 3035) "gdbus" 0x00007f30785e9c2f in __GI___poll (fds=0x564bd51bc800, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  7 Thread 0x7f3042923700 (LWP 3046) "gimp-2.10" 0x00007f30785e9c2f in __GI___poll (fds=0x7f302c000c10, nfds=10, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
  8 Thread 0x7f3042122700 (LWP 3047) "gimp-2.10" futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f3042121770, clockid=<optimized out>, expected=0, futex_word=0x564bd53672e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
  9 Thread 0x7f3041358700 (LWP 3048) "gimp-2.10" futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
  10 Thread 0x7f3040b57700 (LWP 3049) "gimp-2.10" futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
  11 Thread 0x7f3027fff700 (LWP 3050) "gimp-2.10" futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
  12 Thread 0x7f30277fe700 (LWP 3051) "gimp-2.10" futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
  13 Thread 0x7f3026ffd700 (LWP 3052) "gimp-2.10" futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd51eecb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
  14 Thread 0x7f3023633700 (LWP 3053) "async" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  15 Thread 0x7f3022e32700 (LWP 3054) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  16 Thread 0x7f3022631700 (LWP 3055) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  17 Thread 0x7f3021e30700 (LWP 3056) "worker" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  18 Thread 0x7f3020e2e700 (LWP 3149) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

Thread 18 (Thread 0x7f3020e2e700 (LWP 3149)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f3078d9a799 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844686898944, 3581217384976160540, 140727092748110, 140727092748111, 140727092748256, 139844686895360, -3471347352831977700, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 17 (Thread 0x7f3021e30700 (LWP 3056)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x0000564bd45b7423 in ?? ()
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844703684352, 3581217384976160540, 140727092754222, 140727092754223, 140727092754368, 139844703680768, -3471349552928975076, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 16 (Thread 0x7f3022631700 (LWP 3055)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x0000564bd45b7423 in ?? ()
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844712077056, 3581217384976160540, 140727092754222, 140727092754223, 140727092754368, 139844712073472, -3471344048391514340, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 15 (Thread 0x7f3022e32700 (LWP 3054)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x0000564bd45b7423 in ?? ()
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844720469760, 3581217384976160540, 140727092754222, 140727092754223, 140727092754368, 139844720466176, -3471342948343015652, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 14 (Thread 0x7f3023633700 (LWP 3053)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x0000564bd45b766c in ?? ()
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844728862464, 3581217384976160540, 140727092754238, 140727092754239, 140727092754384, 139844728858880, -3471346248488511716, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 13 (Thread 0x7f3026ffd700 (LWP 3052)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd51eecb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
        __ret = -512
        op = 393
        __ret = <optimized out>
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg6 = <optimized out>
        __arg5 = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a6 = <optimized out>
        _a5 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1 do_futex_wait (sem=sem@entry=0x564bd51eecb8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
        err = <optimized out>
#2 0x00007f30786da488 in __new_sem_wait_slow (sem=0x564bd51eecb8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
        _buffer = {__routine = 0x7f30786da340 <__sem_wait_cleanup>, __arg = 0x564bd51eecb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 0
#3 0x00007f3049d7b017 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f3049c42bbd in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#5 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#6 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844789458688, 3581217384976160540, 140727092751022, 140727092751023, 140727092751024, 139844789455104, -3471351983343593700, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 12 (Thread 0x7f30277fe700 (LWP 3051)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
        __ret = -512
        op = 393
        __ret = <optimized out>
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg6 = <optimized out>
        __arg5 = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a6 = <optimized out>
        _a5 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1 do_futex_wait (sem=sem@entry=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
        err = <optimized out>
#2 0x00007f30786da488 in __new_sem_wait_slow (sem=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
        _buffer = {__routine = 0x7f30786da340 <__sem_wait_cleanup>, __arg = 0x564bd5230cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 12884901888
#3 0x00007f3049d7b017 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f3049c42b96 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#5 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#6 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844797851392, 3581217384976160540, 140727092751022, 140727092751023, 140727092751024, 139844797847808, -3471355281341606116, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 11 (Thread 0x7f3027fff700 (LWP 3050)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
        __ret = -512
        op = 393
        __ret = <optimized out>
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg6 = <optimized out>
        __arg5 = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a6 = <optimized out>
        _a5 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1 do_futex_wait (sem=sem@entry=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
        err = <optimized out>
#2 0x00007f30786da488 in __new_sem_wait_slow (sem=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
        _buffer = {__routine = 0x7f30786da340 <__sem_wait_cleanup>, __arg = 0x564bd5230cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 8589934592
#3 0x00007f3049d7b017 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f3049c42b96 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#5 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#6 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139844806244096, 3581217384976160540, 140727092751022, 140727092751023, 140727092751024, 139844806240512, -3471354183440591076, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 10 (Thread 0x7f3040b57700 (LWP 3049)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
        __ret = -512
        op = 393
        __ret = <optimized out>
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg6 = <optimized out>
        __arg5 = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a6 = <optimized out>
        _a5 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1 do_futex_wait (sem=sem@entry=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
        err = <optimized out>
#2 0x00007f30786da488 in __new_sem_wait_slow (sem=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
        _buffer = {__routine = 0x7f30786da340 <__sem_wait_cleanup>, __arg = 0x564bd5230cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 4294967296
#3 0x00007f3049d7b017 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f3049c42b96 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#5 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#6 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139845220792064, 3581217384976160540, 140727092751022, 140727092751023, 140727092751024, 139845220788480, -3471277685778082020, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 9 (Thread 0x7f3041358700 (LWP 3048)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x564bd5230cb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
        __ret = -512
        op = 393
        __ret = <optimized out>
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg6 = <optimized out>
        __arg5 = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a6 = <optimized out>
        _a5 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1 do_futex_wait (sem=sem@entry=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:112
        err = <optimized out>
#2 0x00007f30786da488 in __new_sem_wait_slow (sem=0x564bd5230cb8, abstime=0x0, clockid=0) at sem_waitcommon.c:184
        _buffer = {__routine = 0x7f30786da340 <__sem_wait_cleanup>, __arg = 0x564bd5230cb8, __canceltype = 0, __prev = 0x0}
        err = <optimized out>
        d = 0
#3 0x00007f3049d7b017 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f3049c42b96 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#5 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#6 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139845229184768, 3581217384976160540, 140727092751022, 140727092751023, 140727092751024, 139845229181184, -3471280983776094436, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 8 (Thread 0x7f3042122700 (LWP 3047)):
#0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f3042121770, clockid=<optimized out>, expected=0, futex_word=0x564bd53672e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
        __ret = -516
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        oldtype = 0
        err = <optimized out>
        oldtype = <optimized out>
        err = <optimized out>
        __ret = <optimized out>
        clockbit = <optimized out>
        op = <optimized out>
        __ret = <optimized out>
        resultvar = <optimized out>
        __arg6 = <optimized out>
        __arg5 = <optimized out>
        __arg4 = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a6 = <optimized out>
        _a5 = <optimized out>
        _a4 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
#1 __pthread_cond_wait_common (abstime=0x7f3042121770, clockid=<optimized out>, mutex=0x564bd5367268, cond=0x564bd53672c0) at pthread_cond_wait.c:520
        spin = 0
        buffer = {__routine = 0x7f30786d6fa0 <__condvar_cleanup_waiting>, __arg = 0x7f3042121700, __canceltype = -716212632, __prev = 0x0}
        cbuffer = {wseq = 280, cond = 0x564bd53672c0, mutex = 0x564bd5367268, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        g1_start = <optimized out>
        maxspin = 0
        signals = <optimized out>
        result = 0
        wseq = 280
        seq = 140
        private = <optimized out>
        maxspin = <optimized out>
        err = <optimized out>
        result = <optimized out>
        wseq = <optimized out>
        g = <optimized out>
        seq = <optimized out>
        flags = <optimized out>
        private = <optimized out>
        signals = <optimized out>
        g1_start = <optimized out>
        spin = <optimized out>
        buffer = <optimized out>
        cbuffer = <optimized out>
        s = <optimized out>
#2 __pthread_cond_timedwait (cond=0x564bd53672c0, mutex=0x564bd5367268, abstime=0x7f3042121770) at pthread_cond_wait.c:656
        flags = <optimized out>
        clockid = <optimized out>
#3 0x00007f3049d7ddc7 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f3049d1c6a7 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#5 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#6 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139845243643648, 3581217384976160540, 140727092750158, 140727092750159, 140727092750160, 139845243640064, -3471274649773074660, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#7 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 7 (Thread 0x7f3042923700 (LWP 3046)):
#0 0x00007f30785e9c2f in __GI___poll (fds=0x7f302c000c10, nfds=10, timeout=100) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1 0x00007f3049d7a9c3 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#2 0x00007f3049e288aa in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#3 0x00007f3049d7d048 in ?? () from /lib/x86_64-linux-gnu/libnvidia-opencl.so.1
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139845252036352, 3581217384976160540, 140727092750078, 140727092750079, 140727092750080, 139845252032768, -3471273551872059620, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 6 (Thread 0x7f30668a0700 (LWP 3035)):
#0 0x00007f30785e9c2f in __GI___poll (fds=0x564bd51bc800, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1 0x00007f3078890aae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f3078890e33 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3 0x00007f3078c728da in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139845855479552, 3581217384976160540, 140727092754334, 140727092754335, 140727092754480, 139845855475968, -3471211882047269092, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 5 (Thread 0x7f306609f700 (LWP 3034)):
#0 0x00007f30785e9c2f in __GI___poll (fds=0x564bd51a84f0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1 0x00007f3078890aae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f3078890be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3 0x00007f3078890c31 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139845847086848, 3581217384976160540, 140727092753918, 140727092753919, 140727092754064, 139845847083264, -3471212982095767780, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 4 (Thread 0x7f3075c6f700 (LWP 3030)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f3078d5e993 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139846111131392, 3581217384976160540, 140727092754238, 140727092754239, 140727092754384, 139846111127808, -3471182736936069348, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 3 (Thread 0x7f3076470700 (LWP 3029)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f3078d5e993 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139846119524096, 3581217384976160540, 140727092754238, 140727092754239, 140727092754384, 139846119520512, -3471177238841059556, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 2 (Thread 0x7f3076c71700 (LWP 3028)):
#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1 0x00007f30788dcd83 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f3078d5e993 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#3 0x00007f30788ba181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4 0x00007f30786d0669 in start_thread (arg=<optimized out>) at pthread_create.c:479
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139846127916800, 3581217384976160540, 140727092754238, 140727092754239, 140727092754384, 139846127913216, -3471176132350109924, -3471155018754222308}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#5 0x00007f30785f6323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 1 (Thread 0x7f3077647e00 (LWP 3025)):
#0 __libc_read (nbytes=256, buf=0x7ffd945f9bd0, fd=36) at ../sysdeps/unix/sysv/linux/read.c:26
        resultvar = 18446744073709551104
        sc_cancel_oldtype = 0
        __arg3 = <optimized out>
        _a2 = <optimized out>
        sc_ret = <optimized out>
        __value = <optimized out>
        __arg1 = <optimized out>
        _a3 = <optimized out>
        resultvar = <optimized out>
        resultvar = <optimized out>
        __arg2 = <optimized out>
        _a1 = <optimized out>
#1 __libc_read (fd=36, buf=0x7ffd945f9bd0, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:24
No locals.
#2 0x00007f30791ce7d4 in gimp_stack_trace_print () from /lib/libgimpbase-2.0.so.0
No symbol table info available.
#3 0x0000564bd42f24a0 in ?? ()
No symbol table info available.
#4 0x0000564bd42f28d8 in gimp_fatal_error ()
No symbol table info available.
#5 0x0000564bd42f3037 in ?? ()
No symbol table info available.
#6 <signal handler called>
No locals.
#7 0x00007f3078dc0b1b in gegl_buffer_cl_cache_flush2 () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#8 0x00007f3078d9d2cf in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#9 0x00007f3078d9e6f6 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#10 0x00007f3078d9df23 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#11 0x00007f3078d78ff4 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#12 0x00007f3078d91145 in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#13 0x00007f30584f6206 in ?? () from /usr/lib/x86_64-linux-gnu/gegl-0.4/transformops.so
No symbol table info available.
#14 0x00007f30584f4c4a in ?? () from /usr/lib/x86_64-linux-gnu/gegl-0.4/transformops.so
No symbol table info available.
#15 0x00007f3078d5eabf in ?? () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#16 0x00007f3078d5ec8d in gegl_parallel_distribute () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#17 0x00007f3078d5efdc in gegl_parallel_distribute_area () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#18 0x00007f30584f6b70 in ?? () from /usr/lib/x86_64-linux-gnu/gegl-0.4/transformops.so
No symbol table info available.
#19 0x00007f3078db2049 in gegl_graph_process () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#20 0x00007f3078db15e5 in gegl_eval_manager_apply () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#21 0x00007f3078da9e0a in gegl_node_blit_buffer () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#22 0x00007f3078daa678 in gegl_node_blit () from /lib/x86_64-linux-gnu/libgegl-0.4.so.0
No symbol table info available.
#23 0x0000564bd43cb727 in ?? ()
No symbol table info available.
#24 0x0000564bd43c23e7 in gimp_canvas_item_draw ()
No symbol table info available.
#25 0x0000564bd43bf163 in ?? ()
No symbol table info available.
#26 0x0000564bd43c23e7 in gimp_canvas_item_draw ()
No symbol table info available.
#27 0x0000564bd43bf163 in ?? ()
No symbol table info available.
#28 0x0000564bd43c23e7 in gimp_canvas_item_draw ()
No symbol table info available.
#29 0x0000564bd43bf163 in ?? ()
No symbol table info available.
#30 0x0000564bd43c23e7 in gimp_canvas_item_draw ()
No symbol table info available.
#31 0x0000564bd43d6665 in gimp_display_shell_canvas_expose ()
No symbol table info available.
#32 0x00007f307942bb9b in ?? () from /lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#33 0x00007f307897b6e2 in g_closure_invoke () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#34 0x00007f307898f544 in ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#35 0x00007f307899799e in g_signal_emit_valist () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#36 0x00007f30789989b3 in g_signal_emit () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#37 0x00007f307954722d in ?? () from /lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#38 0x00007f307942a390 in gtk_main_do_event () from /lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#39 0x00007f3079278c4f in ?? () from /lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#40 0x00007f3079278bf3 in ?? () from /lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#41 0x00007f3079278bf3 in ?? () from /lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#42 0x00007f307927564d in ?? () from /lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#43 0x00007f3079275f80 in gdk_window_process_all_updates () from /lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#44 0x00007f30793adcb9 in ?? () from /lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#45 0x00007f3079253e99 in ?? () from /lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
No symbol table info available.
#46 0x00007f307889078e in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#47 0x00007f3078890b40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#48 0x00007f3078890e33 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#49 0x0000564bd42f1cb7 in app_run ()
No symbol table info available.
#50 0x0000564bd42f15b5 in main ()
No symbol table info available.
[Inferior 1 (process 3025) detached]

```