Misc. bug: SYCL backend fails GPU offload on Intel Arc Graphics (Meteor Lake 125H) with UR_RESULT_ERROR_INVALID_VALUE at ggml-sycl.cpp:1800 #28314

Name and Version

Environment

• OS: Windows 11
• CPU: Intel Core Ultra 5 125H
• GPU: Intel Arc Graphics (Meteor Lake iGPU)
• Driver: 32.0.101.8991
• llama.cpp version: b10776-c61b98b87
• Build: llama-b10776-bin-win-sycl-x64

Operating systems

No response

Which llama.cpp modules do you know to be affected?

No response

Command line

.\tools\llama-b10776-bin-win-sycl-x64\llama-cli.exe `
>> -m "D:\models\bartowski\Qwen_Qwen3.5-0.8B-GGUF\Qwen_Qwen3.5-0.8B-Q8_0.gguf" `
>> -ngl 99 `
>> -p "测试" `
>> -n 32

Problem description & steps to reproduce

Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.

Loading model... \Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable. -
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable. \Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable. /
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable. |Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable. /
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable. -Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable. -Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.
level_zero backend failed with error: 4 (UR_RESULT_ERROR_INVALID_VALUE)
Exception caught at file:D:\a\llama.cpp\llama.cpp\ggml\src\ggml-sycl\ggml-sycl.cpp, line:1800, func:operator()
SYCL error: CHECK_TRY_ERROR( map_ptr = phys->map(pool_addr + pool_size, reserve_size, sycl::ext::oneapi::experimental::address_access_mode::read_write)): Exception caught in this line of code.
in function alloc at D:\a\llama.cpp\llama.cpp\ggml\src\ggml-sycl\ggml-sycl.cpp:1800
D:\a\llama.cpp\llama.cpp\ggml\src\ggml-sycl..\ggml-sycl\common.hpp:141: SYCL error

First Bad Commit

No response

Relevant log output

```PS C:\Users\Creep\PycharmProjects\PythonProject2> .\tools\llama-b10776-bin-win-sycl-x64\llama-cli.exe `
>> -m "D:\models\bartowski\Qwen_Qwen3.5-0.8B-GGUF\Qwen_Qwen3.5-0.8B-Q8_0.gguf" `
>> -ngl 99 `
>> -p "测试" `
>> -n 32
Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.


Loading model... \Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.                                                                 -
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.                                                                                   \Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.                                                                                   /
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.                                                                                   |Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.                                                                                   /
Warning: zesInit failed with code 2013265921. Sysman free-memory query may be unavailable.                                                                                   -Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.
Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.                                                                 -Warning: zesInit failed [ggml_check_sycl] with code 2013265921. Sysman free-memory query may be unavailable.
level_zero backend failed with error: 4 (UR_RESULT_ERROR_INVALID_VALUE)
Exception caught at file:D:\a\llama.cpp\llama.cpp\ggml\src\ggml-sycl\ggml-sycl.cpp, line:1800, func:operator()
SYCL error: CHECK_TRY_ERROR( map_ptr = phys->map(pool_addr + pool_size, reserve_size, sycl::ext::oneapi::experimental::address_access_mode::read_write)): Exception caught in this line of code.
  in function alloc at D:\a\llama.cpp\llama.cpp\ggml\src\ggml-sycl\ggml-sycl.cpp:1800
D:\a\llama.cpp\llama.cpp\ggml\src\ggml-sycl\..\ggml-sycl\common.hpp:141: SYCL error
</details>

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