Your message dated Fri, 26 Jul 2024 14:58:52 +0100
with message-id <zqornc2wqq4vm...@aurel32.net>
and subject line Re: Bug#1071820: blender:FTBFS:compile failed(error: cast from 
‘void*’ to ‘CUdeviceptr’ loses precision)
has caused the Debian Bug report #1071820,
regarding blender:FTBFS:compile failed(error: cast from ‘void*’ to 
‘CUdeviceptr’ loses precision)
to be marked as done.

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If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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1071820: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1071820
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--- Begin Message ---
Source: blender
Version: 4.0.2+dfsg-1
Severity: important
Tags: FTBFS, patch
User: debian-ri...@lists.debian.org
Usertags: riscv64
X-Debbugs-Cc: debian-ri...@lists.debian.org

Dear llvmlite Maintainer,
The blender compile failed on riscv64 caused by losing precision when cast
from ‘void*’ to ‘CUdeviceptr’.The crucial buildd log below:
```

/<<PKGBUILDDIR>>/intern/cycles/device/cuda/device_impl.cpp:528:25:
error: cast from ‘void*’ to ‘CUdeviceptr’ {aka ‘unsigned int’} loses
precision [-fpermissive]
  528 |   cuda_assert(cuMemFree((CUdeviceptr)device_pointer));
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/intern/cycles/device/../device/cuda/util.h:32:25:
note: in definition of macro ‘cuda_device_assert’
   32 |       CUresult result = stmt; \
      |                         ^~~~
/<<PKGBUILDDIR>>/intern/cycles/device/cuda/device_impl.cpp:528:3:
note: in expansion of macro ‘cuda_assert’
  528 |   cuda_assert(cuMemFree((CUdeviceptr)device_pointer));
      |   ^~~~~~~~~~~
/<<PKGBUILDDIR>>/intern/cycles/device/cuda/device_impl.cpp: In member
function ‘virtual void ccl::CUDADevice::copy_host_to_device(void*,
void*, size_t)’:
/<<PKGBUILDDIR>>/intern/cycles/device/cuda/device_impl.cpp:558:28:
error: cast from ‘void*’ to ‘CUdeviceptr’ {aka ‘unsigned int’} loses
precision [-fpermissive]
  558 |   cuda_assert(cuMemcpyHtoD((CUdeviceptr)device_pointer,
host_pointer, size));

```
The full buildd log is here:
https://buildd.debian.org/status/fetch.php?pkg=blender&arch=riscv64&ver=4.0.2%2Bdfsg-1&stamp=1704028470&raw=0

 My solution to this issue:
Convert the problematic conversion code to a uintptr_t intermediate type.I
have tested this modification in local ,and it works well.Please let me
know wheather this patch can be accepted. The patch is in the attachment.
Gui-Yue
Best Regards

--- End Message ---
--- Begin Message ---
On 2024-05-25 14:11, Yue Gui wrote:
> Source: blender
> Version: 4.0.2+dfsg-1
> Severity: important
> Tags: FTBFS, patch
> User: debian-ri...@lists.debian.org
> Usertags: riscv64
> X-Debbugs-Cc: debian-ri...@lists.debian.org
> 
> Dear llvmlite Maintainer,
> The blender compile failed on riscv64 caused by losing precision when cast
> from ‘void*’ to ‘CUdeviceptr’.The crucial buildd log below:
> ```

blender now builds fine on riscv64. Closing the bug.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurel...@aurel32.net                     http://aurel32.net

--- End Message ---

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