driver discovery broken under 1.26 #405
Description
It looks like 1.26 broke driver discovery on Fedora 43 x86_64. Using 1.25.2 I would see:
ZE_LOADER_DEBUG_TRACE:Static Loader Using Loader Library Path:
[2025-12-17 19:06:59.168] [ze_loader] [info] Loader Version 1.25.2 - No git SHA found, compiled outside git folder.
ZE_LOADER_DEBUG_TRACE:Using Loader Library Path:
[2025-12-17 19:06:59.168] [ze_loader] [trace] Using Loader Library Path:
ZE_LOADER_DEBUG_TRACE:DDI Driver Extension Path is Enabled
[2025-12-17 19:06:59.168] [ze_loader] [trace] DDI Driver Extension Path is Enabled
ZE_LOADER_DEBUG_TRACE:Loading Driver libze_intel_gpu.so.1 succeeded from: /lib64/libze_intel_gpu.so.1
[2025-12-17 19:06:59.183] [ze_loader] [trace] Loading Driver libze_intel_gpu.so.1 succeeded from: /lib64/libze_intel_gpu.so.1
After updating to 1.26.1:
# dnf upgrade oneapi-level-zero
Updating and loading repositories:
Intel® oneAPI repository 100% | 10.6 KiB/s | 3.5 KiB | 00m00ss
Fedora 43 - x86_64 100% | 14.3 KiB/s | 32.0 KiB | 00m02s
Fedora 43 - x86_64 - Updates 100% | 26.1 KiB/s | 30.0 KiB | 00m01s
Repositories loaded.
Package Arch Version Repository Size
Upgrading:
oneapi-level-zero x86_64 1.26.1-1.fc43 updates 2.6 MiB
replacing oneapi-level-zero x86_64 1.25.2-1.fc43 updates 2.6 MiB
Transaction Summary:
Upgrading: 1 package
Replacing: 1 package
Total size of inbound packages is 632 KiB. Need to download 632 KiB.
After this operation, 25 KiB extra will be used (install 3 MiB, remove 3 MiB).
Is this ok [y/N]: y
[1/1] oneapi-level-zero-0:1.26.1-1.fc43.x86_64 100% | 364.7 KiB/s | 631.9 KiB | 00m02s
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[1/1] Total 100% | 364.0 KiB/s | 631.9 KiB | 00m02s
Running transaction
[1/4] Verify package files 100% | 1.0 KiB/s | 1.0 B | 00m00s
[2/4] Prepare transaction 100% | 80.0 B/s | 2.0 B | 00m00s
[3/4] Upgrading oneapi-level-zero-0:1.26.1-1.fc43.x86_64 100% | 431.8 MiB/s | 2.6 MiB | 00m00s
[4/4] Removing oneapi-level-zero-0:1.25.2-1.fc43.x86_64 100% | 99.0 B/s | 18.0 B | 00m00s
Complete!
I see:
ZE_LOADER_DEBUG_TRACE:Static Loader Using Loader Library Path:
[2025-12-17 19:07:40.941] [ze_loader] [info] Loader Version 1.26.1 - No git SHA found, compiled outside git folder.
ZE_LOADER_DEBUG_TRACE:Using Loader Library Path:
[2025-12-17 19:07:40.941] [ze_loader] [trace] Using Loader Library Path:
ZE_LOADER_DEBUG_TRACE:DDI Driver Extension Path is Enabled
[2025-12-17 19:07:40.941] [ze_loader] [trace] DDI Driver Extension Path is Enabled
ZE_LOADER_DEBUG_TRACE:0 Drivers Discovered
[2025-12-17 19:07:40.941] [ze_loader] [trace] 0 Drivers Discovered
[2025-12-17 19:07:40.941] [ze_loader] [error] 0 Drivers Discovered
ZE_LOADER_DEBUG_TRACE:ze_lib Context Init() Loader Init Failed with ZE_RESULT_ERROR_UNINITIALIZED
It looks like the issue might be:
which searches for drivers in /lib. The intel-level-zero package installs /lib64/libze_intel_gpu.so.1.