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v0.8.8 broke ti.random() on i915 with Vulkan backend #3857

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whorfin opened this issue Dec 22, 2021 · 2 comments
Closed

v0.8.8 broke ti.random() on i915 with Vulkan backend #3857

whorfin opened this issue Dec 22, 2021 · 2 comments
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potential bug Something that looks like a bug but not yet confirmed

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@whorfin
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whorfin commented Dec 22, 2021

Describe the bug
ti.random() in @ti.kernel context causes crash in libvulkan_intel.so on i915 with Vulkan backend

To Reproduce

#!/usr/bin/python3
import taichi as ti

#ti.init(arch=ti.opengl) # works
ti.init(arch=ti.vulkan) # fail

N = 3

@ti.kernel
def randomize():
    for i in range(N):
        pos[i] = ti.random()


pos = ti.field(ti.f32, N)

print("\nNow initializing random array...",end="")
randomize()
print("done")

for i in range(N):
    print(pos[i])

When run with opengl backend:

[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10
[Taichi] Starting on arch=opengl

Now initializing random array...done
0.7819478511810303
0.5993385314941406
0.48945173621177673

When run against Vulkan backend:

[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10
[Taichi] Starting on arch=vulkan

Now initializing random array...[W 12/22/21 14:20:36.954 64993] [vulkan_device.cpp:rw_buffer@513] Overriding last binding
[E 12/22/21 14:20:36.954 64993] Received signal 11 (Segmentation fault)


***********************************
* Taichi Compiler Stack Traceback *
***********************************
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::Logger::error(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so(+0x785d34) [0x7fe8c93d7d34]
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7fe8cdc9a210]
/usr/lib/x86_64-linux-gnu/libvulkan_intel.so(+0x484155) [0x7fe8c4c17155]
/usr/lib/x86_64-linux-gnu/libvulkan_intel.so(+0x10699c) [0x7fe8c489999c]
/usr/lib/x86_64-linux-gnu/libvulkan_intel.so(+0x108a61) [0x7fe8c489ba61]
/usr/lib/x86_64-linux-gnu/libvulkan_intel.so(+0x189d75) [0x7fe8c491cd75]
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so(+0xaa8f27) [0x7fe8c96faf27]
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::vulkan::VulkanPipeline::create_compute_pipeline(taichi::lang::vulkan::VulkanPipeline::Params const&)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::vulkan::VulkanPipeline::VulkanPipeline(taichi::lang::vulkan::VulkanPipeline::Params const&)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::vulkan::VulkanDevice::create_pipeline(taichi::lang::PipelineSourceDesc const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::vulkan::CompiledTaichiKernel::CompiledTaichiKernel(taichi::lang::vulkan::CompiledTaichiKernel::Params const&)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::vulkan::VkRuntime::register_taichi_kernel(taichi::lang::vulkan::VkRuntime::RegisterParams)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::compile_to_executable(taichi::lang::Kernel*, taichi::lang::vulkan::VkRuntime*)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::VulkanProgramImpl::compile(taichi::lang::Kernel*, taichi::lang::OffloadedStmt*)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::Program::compile(taichi::lang::Kernel&, taichi::lang::OffloadedStmt*)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::Kernel::compile()
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so: taichi::lang::Kernel::operator()(taichi::lang::Kernel::LaunchContextBuilder&)
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so(+0x3fc95a) [0x7fe8c904e95a]
/usr/local/lib/python3.8/dist-packages/taichi/_lib/core/taichi_core.so(+0x3b643e) [0x7fe8c900843e]
/usr/bin/python3: PyCFunction_Call
/usr/bin/python3: _PyObject_MakeTpCall
/usr/bin/python3: ) [0x50b485]
/usr/bin/python3: PyObject_Call
/usr/bin/python3: ) [0x59cb20]
/usr/bin/python3: _PyObject_MakeTpCall
/usr/bin/python3: _PyEval_EvalFrameDefault
/usr/bin/python3: _PyEval_EvalCodeWithName
/usr/bin/python3: _PyFunction_Vectorcall
/usr/bin/python3: PyObject_Call
/usr/bin/python3: _PyEval_EvalFrameDefault
/usr/bin/python3: _PyEval_EvalCodeWithName
/usr/bin/python3: _PyFunction_Vectorcall
/usr/bin/python3: _PyObject_FastCallDict
/usr/bin/python3: _PyObject_Call_Prepend
/usr/bin/python3: ) [0x59cafb]
/usr/bin/python3: PyObject_Call
/usr/bin/python3: _PyEval_EvalFrameDefault
/usr/bin/python3: _PyEval_EvalCodeWithName
/usr/bin/python3: _PyFunction_Vectorcall
/usr/bin/python3: _PyEval_EvalFrameDefault
/usr/bin/python3: _PyEval_EvalCodeWithName
/usr/bin/python3: PyEval_EvalCode
/usr/bin/python3: ) [0x67cd01]
/usr/bin/python3: ) [0x67cd7f]
/usr/bin/python3: ) [0x67ce21]
/usr/bin/python3: PyRun_SimpleFileExFlags
/usr/bin/python3: Py_RunMain
/usr/bin/python3: Py_BytesMain
/lib/x86_64-linux-gnu/libc.so.6: __libc_start_main
/usr/bin/python3: _start

Internal error occurred. Check out this page for possible solutions:
https://docs.taichi.graphics/lang/articles/misc/install

Here is the diagnostic info:

$ ti diagnose
[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10

*******************************************
**      Taichi Programming Language      **
*******************************************

Docs:   https://docs.taichi.graphics/
GitHub: https://github.com/taichi-dev/taichi/
Forum:  https://forum.taichi.graphics/

Taichi system diagnose:

python: 3.8.10 (default, Sep 28 2021, 16:10:42)
[GCC 9.3.0]
system: linux
executable: /usr/bin/python3
platform: Linux-5.4.0-91-generic-x86_64-with-glibc2.29
architecture: 64bit ELF
uname: uname_result(system='Linux', node='shiv', release='5.4.0-91-generic', version='#102-Ubuntu SMP Fri Nov 5 16:31:28 UTC 2021', machine='x86_64', processor='x86_64')
locale: en_US.UTF-8
PATH: /home/whorfin/bin:/home/whorfin/bin.private:/home/whorfin/bin:/home/whorfin/bin.private:/home/whorfin/.local/bin:/home/whorfin/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/whorfin/.fzf/bin:/usr/local/texlive/2018/bin/x86_64-linux:/home/whorfin/.cargo/bin
PYTHONPATH: ['/usr/local/bin', '/usr/lib/python38.zip', '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', '/home/whorfin/.local/lib/python3.8/site-packages', '/usr/local/lib/python3.8/dist-packages', '/usr/local/lib/python3.8/dist-packages/cc2538_bsl-2.1.post47+g0daa5d0-py3.8.egg', '/usr/lib/python3/dist-packages']

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:        20.04
Codename:       focal



import: <module 'taichi' from '/usr/local/lib/python3.8/dist-packages/taichi/__init__.py'>

cc: False
cpu: True
metal: False
opengl: True
cuda: False
vulkan: True

`glewinfo` not available: [Errno 2] No such file or directory: 'glewinfo'

`nvidia-smi` not available: [Errno 2] No such file or directory: 'nvidia-smi'
[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10

[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10
[Taichi] Starting on arch=x64

[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10
[Taichi] Starting on arch=opengl

[W 12/22/21 14:22:50.743 65173] [cuda_driver.cpp:CUDADriver@38] CUDA driver not found.
[W 12/22/21 14:22:50.744 65173] [__init__.py:adaptive_arch_select@1110] Arch=[<Arch.cuda: 5>] is not supported, falling back to CPU
[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10
[Taichi] Starting on arch=x64

[Taichi] version 0.8.8, llvm 10.0.0, commit 7bae9c77, linux, python 3.8.10

*******************************************
**      Taichi Programming Language      **
*******************************************

Docs:   https://docs.taichi.graphics/
GitHub: https://github.com/taichi-dev/taichi/
Forum:  https://forum.taichi.graphics/

Running example minimal ...
[Taichi] Starting on arch=x64
42.0
>>> Running time: 0.22s
42

Consider attaching this log when maintainers ask about system information.
>>> Running time: 3.89s

And this might additionally be helpful - I do not see the crash on nvidia hardware. I see the crash with Vulkan on this hardware:

$ inxi -G
Graphics:  Device-1: Intel HD Graphics 620 driver: i915 v: kernel
           Display: x11 server: X.Org 1.20.11 driver: modesetting unloaded: fbdev,vesa
           resolution: 2560x1440~60Hz
           OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 21.0.3
@whorfin whorfin added the potential bug Something that looks like a bug but not yet confirmed label Dec 22, 2021
@whorfin whorfin mentioned this issue Dec 22, 2021
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@strongoier
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cc: @bobcao3 @AmesingFlank

@whorfin
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whorfin commented Mar 1, 2022

seems fixed in 0.9.0

@whorfin whorfin closed this as completed Mar 1, 2022
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