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Bug#1121183: marked as done (/usr/bin/x86_64-linux-gnu-g++-15: src/gallium/drivers/zink/zink_draw.cpp:671:49: internal compiler error: Segmentation fault)

Your message dated Wed, 17 Dec 2025 08:39:33 +0100
with message-id <b0eef820-db93-48ef-962a-cf80e619ea9b@debian.org>
and subject line closing as requested by the bug submitter
has caused the Debian Bug report #1121183,
regarding /usr/bin/x86_64-linux-gnu-g++-15: src/gallium/drivers/zink/zink_draw.cpp:671:49: internal compiler error: Segmentation fault
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1121183: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1121183
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: g++-15-x86-64-linux-gnu
Version: 15.2.0-7
Severity: important
File: /usr/bin/x86_64-linux-gnu-g++-15
X-Debbugs-Cc: witold.baryluk@gmail.com

Dear Maintainer,

this is regression. gcc from Debian testing just few weeks ago was
working fine when compiling mesa from git.

But today I upgraded packages, and when building mesa I got things like
this:

```
ninja: Entering directory `/home/user/mesa-git/builddir/build-amd64-opt/mesa/'
[45/82] Compiling C++ object src/gallium/drivers/zink/libzink.a.p/zink_draw.cpp.o
FAILED: [code=1] src/gallium/drivers/zink/libzink.a.p/zink_draw.cpp.o 
/usr/bin/x86_64-linux-gnu-g++-15 -Isrc/gallium/drivers/zink/libzink.a.p -Isrc/gallium/drivers/zink -I../../../src/gallium/drivers/zink -Iinclude -I../../../include -Isrc -I../../../src -I../../../src/gallium/include -Isrc/gallium/auxiliary -I../../../src/gallium/auxiliary -Isrc/vulkan/util -I../../../src/vulkan/util -Isrc/compiler/nir -I../../../src/compiler/nir -Isrc/compiler -I../../../src/compiler -Isrc/compiler/spirv -Isrc/util -Isrc/util/format -I/usr/include/valgrind -I/usr/include/x86_64-linux-gnu -I/home/user/mesa-git/installdir/build-amd64-opt/install/include -I/home/user/mesa-git/installdir/build-amd64-opt/install/include/libdrm -fvisibility=hidden -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=c++17 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS '-DPACKAGE_VERSION="26.0.0-devel"' '-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues";' -DHAVE_OPENGL=1 -DHAVE_OPENGL_ES_1=1 -DHAVE_OPENGL_ES_2=1 -DHAVE_RADEONSI -DHAVE_R600 -DHAVE_ZINK -DHAVE_VIRGL -DHAVE_SOFTPIPE -DHAVE_LLVMPIPE -DHAVE_SWRAST -DMESA_SYSTEM_HAS_KMS_DRM=1 -DVIDEO_CODEC_VC1DEC=1 -DVIDEO_CODEC_H264DEC=1 -DVIDEO_CODEC_H264ENC=1 -DVIDEO_CODEC_H265DEC=1 -DVIDEO_CODEC_H265ENC=1 -DVIDEO_CODEC_AV1DEC=1 -DVIDEO_CODEC_AV1ENC=1 -DVIDEO_CODEC_VP9DEC=1 -DHAVE_X11_PLATFORM -DHAVE_WAYLAND_PLATFORM -DHAVE_SURFACELESS_PLATFORM -DHAVE_DRM_PLATFORM -DHAVE_XCB_PLATFORM -DUSE_LIBGLVND=1 -DHAVE_VA_SURFACE_ATTRIB_DRM_FORMAT_MODIFIERS -DGLX_INDIRECT_RENDERING -DGLX_DIRECT_RENDERING -DGLX_USE_DRM -DGLAPI_EXPORT_PROTO_ENTRY_POINTS=0 -DALLOW_KCMP -DMESA_DEBUG=0 -DENABLE_SHADER_CACHE '-DMESA_SHADER_CACHE_MAX_SIZE="8G"' -DHAVE___BUILTIN_BSWAP32 -DHAVE___BUILTIN_BSWAP64 -DHAVE___BUILTIN_CLZ -DHAVE___BUILTIN_CLZLL -DHAVE___BUILTIN_CTZ -DHAVE___BUILTIN_EXPECT -DHAVE___BUILTIN_FFS -DHAVE___BUILTIN_FFSLL -DHAVE___BUILTIN_POPCOUNT -DHAVE___BUILTIN_POPCOUNTLL -DHAVE___BUILTIN_UNREACHABLE -DHAVE___BUILTIN_TYPES_COMPATIBLE_P -DHAVE___BUILTIN_ADD_OVERFLOW -DHAVE___BUILTIN_ADD_OVERFLOW_P -DHAVE___BUILTIN_SUB_OVERFLOW_P -DHAVE_FUNC_ATTRIBUTE_CONST -DHAVE_FUNC_ATTRIBUTE_FLATTEN -DHAVE_FUNC_ATTRIBUTE_MALLOC -DHAVE_FUNC_ATTRIBUTE_PURE -DHAVE_FUNC_ATTRIBUTE_UNUSED -DHAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT -DHAVE_FUNC_ATTRIBUTE_WEAK -DHAVE_FUNC_ATTRIBUTE_FORMAT -DHAVE_FUNC_ATTRIBUTE_PACKED -DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL -DHAVE_FUNC_ATTRIBUTE_ALIAS -DHAVE_FUNC_ATTRIBUTE_NORETURN -DHAVE_FUNC_ATTRIBUTE_OPTIMIZE -DHAVE_FUNC_ATTRIBUTE_COLD -DHAVE_FUNC_ATTRIBUTE_VISIBILITY -DHAVE_UINT128 -DHAVE_REALLOCARRAY -DHAVE_FMEMOPEN -D_GNU_SOURCE -DUSE_SSE41 -DHAVE___BUILTIN_IA32_CLFLUSHOPT -DUSE_GCC_ATOMIC_BUILTINS -DMAJOR_IN_SYSMACROS -DHAS_SCHED_H -DHAS_SCHED_GETAFFINITY -DHAVE_LINUX_FUTEX_H -DHAVE_ENDIAN_H -DHAVE_DLFCN_H -DHAVE_SYS_SHM_H -DHAVE_CET_H -DHAVE_SYS_INOTIFY_H -DHAVE_LINUX_UDMABUF_H -DHAVE_STRTOF -DHAVE_MKOSTEMP -DHAVE_MEMFD_CREATE -DHAVE_RANDOM_R -DHAVE_FLOCK -DHAVE_STRTOK_R -DHAVE_GETRANDOM -DHAVE_POSIX_FALLOCATE -DHAVE_SECURE_GETENV -DHAVE_SYSCONF -DHAVE_GNU_QSORT_R -DHAVE_STRUCT_TIMESPEC -DHAVE_PROGRAM_INVOCATION_NAME -DHAVE_ISSIGNALING -DHAVE_POSIX_MEMALIGN -DHAVE_DIRENT_D_TYPE -DHAVE_STRTOD_L -DHAVE_DLADDR -DHAVE_DL_ITERATE_PHDR -DHAVE_ZLIB -DHAVE_ZSTD -DHAVE_COMPRESSION -DHAVE_PTHREAD -DHAVE_PTHREAD_SETAFFINITY -DHAVE_LIBDRM -DHAVE_LIBUDEV '-DMESA_LLVM_VERSION_STRING="19.1.7"' -DLLVM_IS_SHARED=1 -DDRAW_LLVM_AVAILABLE=1 -DAMD_LLVM_AVAILABLE=1 -DGALLIVM_USE_ORCJIT=0 -DHAVE_SPIRV_TOOLS -DUSE_LIBELF -DHAVE_VALGRIND -DTHREAD_SANITIZER=0 -DHAVE_LIBUNWIND -DWL_HIDE_DEPRECATED -DHAVE_WL_DISPATCH_QUEUE_TIMEOUT -DHAVE_WL_CREATE_QUEUE_WITH_NAME -DHAVE_OPENMP -DXCB_KEYSYMS_AVAILABLE -DHAVE_X11_DRM -DHAVE_DRI -DHAVE_DRI2 -DHAVE_DRI3_EXPLICIT_SYNC -DHAVE_DRISW_KMS -DHAVE_GALLIUM_EXTRA_HUD=1 -DHAVE_LIBSENSORS=1 -mtls-dialect=gnu2 -Werror=return-type -Werror=empty-body -Wmisleading-indentation -Wno-error=maybe-uninitialized -Wno-non-virtual-dtor -Wno-missing-field-initializers -Wno-format-truncation -fno-math-errno -fno-trapping-math -flifetime-dse=1 -Wno-unknown-pragmas -Werror=format -Wformat-security -ffunction-sections -fdata-sections -Wno-unused-variable -Wno-unused-but-set-variable -std=c++17 -pipe -march=native -O2 -mfpmath=sse -fPIC -DVK_USE_PLATFORM_XCB_KHR -DVK_USE_PLATFORM_XLIB_KHR -DVK_USE_PLATFORM_WAYLAND_KHR -DVK_USE_PLATFORM_DISPLAY_KHR -DVK_USE_PLATFORM_XLIB_XRANDR_EXT -pthread -MD -MQ src/gallium/drivers/zink/libzink.a.p/zink_draw.cpp.o -MF src/gallium/drivers/zink/libzink.a.p/zink_draw.cpp.o.d -o src/gallium/drivers/zink/libzink.a.p/zink_draw.cpp.o -c ../../../src/gallium/drivers/zink/zink_draw.cpp
during GIMPLE pass: einline
../../../src/gallium/drivers/zink/zink_draw.cpp: In function ‘void zink_draw(pipe_context*, const pipe_draw_info*, unsigned int, const pipe_draw_indirect_info*, const pipe_draw_start_count_bias*, unsigned int, pipe_vertex_state*, uint32_t) [with zink_multidraw HAS_MULTIDRAW = ZINK_MULTIDRAW; zink_dynamic_state DYNAMIC_STATE = ZINK_DYNAMIC_STATE2; bool BATCH_CHANGED = false; bool DRAW_STATE = false]’:
../../../src/gallium/drivers/zink/zink_draw.cpp:671:49: internal compiler error: Segmentation fault
  671 |    if (drawid_broken != zink_get_last_vertex_key(ctx)->push_drawid)
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
0x7fc62aa02def ???
    ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x7fc62a9ecca7 __libc_start_call_main
    ../sysdeps/nptl/libc_start_call_main.h:58
0x7fc62a9ecd64 __libc_start_main_impl
    ../csu/libc-start.c:360
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-15/README.Bugs> for instructions.
```


Another one that fails in a similar manner:


```
../../../src/mesa/vbo/vbo_attrib_tmp.h: In function ‘_mesa_ColorP3uiv’:
../../../src/mesa/vbo/vbo_exec_api.c:490:11: internal compiler error: Segmentation fault
  490 |    struct vbo_exec_context *exec = &vbo_context(ctx)->exec;             \
```


mesa git at commit 3eef0c02453b59ed6380338fde8edd3063dd4227

The build process (as well as installing some dependencies using sudo),
can be replicated using this script at

https://gist.github.com/baryluk/1041204eff4cc4fad6f1508afe67b562

Then running it with `./mesa-build.py --build32=0 --debug=1` as a normal
user (it will create two directories `~/libdrm-git` and `~/mesa-git`,
and if build is successfull also `~/mesa-opt` and `~/zink-opt` script).
It will not modify or create any other files on system or user.

Few other files do also take forever to compile. Like 10 minutes, where
before it was few seconds. I never managed to wait long enough for it to
finish. Examples are `../../../src/mesa/vbo/vbo_save_api.c`
`../../../src/mesa/main/format_utils.c` but there are few more.

It is regression, as it was building all fine just few hours ago, before
I did system upgrade.

Here is a dump of the build script, showing some dependencies versions

user@debian:~$ ./mesa-build.py --build32=0 --debug=1  --git-pull=0 

Checking base dependency versions on amd64 ...

Running sudo --preserve-env=DEBIAN_FRONTEND,APT_LISTCHANGES_FRONTEND,NEEDRESTART_MODE,NEEDRESTART_SUSPEND,DEBIAN_FRONT apt-get install --option APT::Get::HideAutoRemove=1 --option quiet::NoProgress=1 --no-install-recommends libc6-dev:amd64
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libc6-dev is already the newest version (2.41-12).
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Ensuring dependencies for Mesa build are installed ...

Running sudo --preserve-env=DEBIAN_FRONTEND,APT_LISTCHANGES_FRONTEND,NEEDRESTART_MODE,NEEDRESTART_SUSPEND,DEBIAN_FRONT apt-get install --option APT::Get::HideAutoRemove=1 --option quiet::NoProgress=1 --no-install-recommends mesa-utils vulkan-tools git ca-certificates gcc-15 g++-15 pkg-config meson ninja-build gettext python3 python3-setuptools python3-mako valgrind bison flex dpkg-dev glslang-tools libclang-19-dev:amd64 libclang-cpp19-dev libclc-19-dev libpolly-19-dev:amd64 xutils-dev:amd64 bindgen cbindgen rustfmt librust-paste-dev librust-syn-dev libvulkan-dev:amd64 libxv-dev:amd64 libva-dev:amd64 zlib1g-dev:amd64 libzstd-dev:amd64 libexpat1-dev:amd64 libelf-dev:amd64 libglvnd-dev:amd64 wayland-protocols:amd64 libwayland-dev:amd64 libwayland-egl-backend-dev:amd64 libx11-dev:amd64 libxext-dev:amd64 libxfixes-dev:amd64 libxcb-glx0-dev:amd64 libxcb-shm0-dev:amd64 libxcb1-dev:amd64 libx11-xcb-dev:amd64 libxcb-dri2-0-dev:amd64 libxcb-dri3-dev:amd64 libxcb-present-dev:amd64 libxcb-sync-dev:amd64 libxcb-keysyms1-dev:amd64 libxshmfence-dev:amd64 x11proto-dev:amd64 libxxf86vm-dev:amd64 libxcb-xfixes0-dev:amd64 libxcb-randr0-dev:amd64 libxrandr-dev:amd64 libxcb-sync-dev:amd64 libsensors-dev:amd64 libx11-dev:amd64 libudev-dev:amd64 libpciaccess-dev:amd64 libcunit1-dev:amd64 liblua5.4-dev:amd64 libcairo-dev:amd64 libllvmspirvlib-19-dev:amd64 llvm-spirv-19:amd64 wayland-protocols libwayland-bin
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'libcairo2-dev' instead of 'libcairo-dev'
mesa-utils is already the newest version (9.0.0-2+b2).
vulkan-tools is already the newest version (1.4.328.1+dfsg1-1).
git is already the newest version (1:2.51.0-1).
ca-certificates is already the newest version (20250419).
gcc-15 is already the newest version (15.2.0-7).
g++-15 is already the newest version (15.2.0-7).
pkg-config is already the newest version (1.8.1-4).
meson is already the newest version (1.9.1-2).
ninja-build is already the newest version (1.13.1-1).
gettext is already the newest version (0.23.2-1).
python3 is already the newest version (3.13.7-1).
python3-setuptools is already the newest version (78.1.1-0.1).
python3-mako is already the newest version (1.3.10-3).
valgrind is already the newest version (1:3.25.1-3).
bison is already the newest version (2:3.8.2+dfsg-1+b2).
flex is already the newest version (2.6.4-8.2+b4).
dpkg-dev is already the newest version (1.22.21).
glslang-tools is already the newest version (15.4.0-1).
libclang-19-dev is already the newest version (1:19.1.7-10.1).
libclang-cpp19-dev is already the newest version (1:19.1.7-10.1).
libclc-19-dev is already the newest version (1:19.1.7-10.1).
libpolly-19-dev is already the newest version (1:19.1.7-10.1).
xutils-dev is already the newest version (1:7.7+7).
bindgen is already the newest version (0.72.1-1).
cbindgen is already the newest version (0.27.0-2).
rustfmt is already the newest version (1.90.0+dfsg1-1).
librust-paste-dev is already the newest version (1.0.15-1).
librust-syn-dev is already the newest version (2.0.105-1).
libvulkan-dev is already the newest version (1.4.328.1-1).
libxv-dev is already the newest version (2:1.0.13-1).
libva-dev is already the newest version (2.22.0-3).
zlib1g-dev is already the newest version (1:1.3.dfsg+really1.3.1-1+b1).
libzstd-dev is already the newest version (1.5.7+dfsg-2).
libexpat1-dev is already the newest version (2.7.3-1).
libelf-dev is already the newest version (0.194-1).
libglvnd-dev is already the newest version (1.7.0-1+b2).
wayland-protocols is already the newest version (1.45-2).
libwayland-dev is already the newest version (1.24.0-2+b1).
libwayland-egl-backend-dev is already the newest version (1.24.0-2+b1).
libx11-dev is already the newest version (2:1.8.12-1).
libxext-dev is already the newest version (2:1.3.4-1+b3).
libxfixes-dev is already the newest version (1:6.0.0-2+b4).
libxcb-glx0-dev is already the newest version (1.17.0-2+b1).
libxcb-shm0-dev is already the newest version (1.17.0-2+b1).
libxcb1-dev is already the newest version (1.17.0-2+b1).
libx11-xcb-dev is already the newest version (2:1.8.12-1).
libxcb-dri2-0-dev is already the newest version (1.17.0-2+b1).
libxcb-dri3-dev is already the newest version (1.17.0-2+b1).
libxcb-present-dev is already the newest version (1.17.0-2+b1).
libxcb-sync-dev is already the newest version (1.17.0-2+b1).
libxcb-keysyms1-dev is already the newest version (0.4.1-1).
libxshmfence-dev is already the newest version (1.3.3-1).
x11proto-dev is already the newest version (2024.1-1).
libxxf86vm-dev is already the newest version (1:1.1.4-2).
libxcb-xfixes0-dev is already the newest version (1.17.0-2+b1).
libxcb-randr0-dev is already the newest version (1.17.0-2+b1).
libxrandr-dev is already the newest version (2:1.5.4-1+b3).
libsensors-dev is already the newest version (1:3.6.2-2).
libudev-dev is already the newest version (259~rc1-1).
libpciaccess-dev is already the newest version (0.17-3+b3).
libcunit1-dev is already the newest version (2.1-3-dfsg-2.7+b1).
liblua5.4-dev is already the newest version (5.4.8-1).
libcairo2-dev is already the newest version (1.18.4-1+b1).
libllvmspirvlib-19-dev is already the newest version (19.1.12-1).
llvm-spirv-19 is already the newest version (19.1.12-1).
libwayland-bin is already the newest version (1.24.0-2+b1).
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Running sudo --preserve-env=DEBIAN_FRONTEND,APT_LISTCHANGES_FRONTEND,NEEDRESTART_MODE,NEEDRESTART_SUSPEND,DEBIAN_FRONT apt-get install --option APT::Get::HideAutoRemove=1 --option quiet::NoProgress=1 --no-install-recommends directx-headers-dev:amd64
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
directx-headers-dev is already the newest version (1.618.2-1).
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.


Attempting to install llvm19 ... If it fails, please read the source code how to add proper repos...


Running sudo --preserve-env=DEBIAN_FRONTEND,APT_LISTCHANGES_FRONTEND,NEEDRESTART_MODE,NEEDRESTART_SUSPEND,DEBIAN_FRONT apt-get install --option APT::Get::HideAutoRemove=1 --option quiet::NoProgress=1 --no-install-recommends libllvm19 libllvm19:amd64 llvm-19-dev
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libllvm19 is already the newest version (1:19.1.7-10.1).
llvm-19-dev is already the newest version (1:19.1.7-10.1).
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Running sudo --preserve-env=DEBIAN_FRONTEND,APT_LISTCHANGES_FRONTEND,NEEDRESTART_MODE,NEEDRESTART_SUSPEND,DEBIAN_FRONT apt-get install --option APT::Get::HideAutoRemove=1 --option quiet::NoProgress=1 --no-install-recommends libllvm19-dbgsym:amd64
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libllvm19-dbgsym is already the newest version (1:19.1.7-10.1).
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Checking libdrm git repo ...

libdrm-git repo already present. To update, use --git-pull=1 option or run "cd '/home/user/libdrm-git' && git pull" manually.


Checking mesa git repo ...

mesa-git repo already present. To update, use --git-pull=1 option or run "cd '/home/user/mesa-git' && git pull" manually.

Running sudo --preserve-env=DEBIAN_FRONTEND,APT_LISTCHANGES_FRONTEND,NEEDRESTART_MODE,NEEDRESTART_SUSPEND,DEBIAN_FRONT apt-get install --option APT::Get::HideAutoRemove=1 --option quiet::NoProgress=1 --no-install-recommends libclang-19-dev libclang-cpp19-dev:amd64
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libclang-19-dev is already the newest version (1:19.1.7-10.1).
libclang-cpp19-dev is already the newest version (1:19.1.7-10.1).
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Configuring and building amd64 opt Mesa ...



-- System Information:
Debian Release: forky/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.18.0-rc6 (SMP w/32 CPU threads; PREEMPT)
Kernel taint flags: TAINT_CPU_OUT_OF_SPEC, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages g++-15-x86-64-linux-gnu depends on:
ii  gcc-15-base              15.2.0-7
ii  gcc-15-x86-64-linux-gnu  15.2.0-7
ii  libc6                    2.41-12
ii  libgmp10                 2:6.3.0+dfsg-5
ii  libisl23                 0.27-1
ii  libmpc3                  1.3.1-2
ii  libmpfr6                 4.2.2-2
ii  libstdc++-15-dev         15.2.0-7
ii  libzstd1                 1.5.7+dfsg-2
ii  zlib1g                   1:1.3.dfsg+really1.3.1-1+b1

g++-15-x86-64-linux-gnu recommends no packages.

Versions of packages g++-15-x86-64-linux-gnu suggests:
pn  gcc-15-doc  <none>

-- no debconf information

--- End Message ---
--- Begin Message --- 
closing as requested by the bug submitter

--- End Message ---
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