Kernel 6.8.0-38 seems to have introduced a regression causing Intel GPUs to hang when running oneAPI kernels. Here is a minimal example:
```
#include <cstdio>
#include <sycl/sycl.hpp>
int main() {
// auto selector = sycl::cpu_selector_v; // Works fine
auto selector = sycl::gpu_selector_v;
auto queue = sycl::queue(selector);
printf("Hello\n");
queue.submit([&](sycl::handler &cgh) {
cgh.parallel_for(sycl::range(1), [=](sycl::item<1> item) {});
});
queue.wait();
printf("Bye\n");
return 0;
}
```
Compiled with `icpx -fsycl sycltest.cpp -o sycltest`.
Eventually I get "[ 92.775034] Fence expiration time out i915-0000:03:00.0:sycltest[4605]:2!" in dmesg.
It works fine on 6.8.0-36.
Ubuntu version:
No LSB modules are available.
Description: Ubuntu 24.04 LTS
Release: 24.04
These are the Intel packages (apt list --installed | grep intel):
intel-basekit-2024.2/all,now 2024.2.0-633 amd64 [installed]
intel-basekit-env-2024.2/all,now 2024.2.0-633 all [installed,automatic]
intel-basekit-getting-started-2024.2/all,now 2024.2.0-633 all [installed,automatic]
intel-gpu-tools/noble,now 1.28-1ubuntu2 amd64 [installed]
intel-media-va-driver-non-free/noble,now 24.1.0+ds1-1 amd64 [installed]
intel-microcode/noble-updates,noble-security,now 3.20240514.0ubuntu0.24.04.1 amd64 [installed,automatic]
intel-ocloc/noble,now 23.43.27642.40-1ubuntu3 amd64 [installed]
intel-oneapi-advisor/all,now 2024.2.0-682 amd64 [installed,automatic]
intel-oneapi-ccl-2021.13/all,now 2021.13.0-299 amd64 [installed,automatic]
intel-oneapi-ccl-devel-2021.13/all,now 2021.13.0-299 amd64 [installed,automatic]
intel-oneapi-common-licensing-2024.2/all,now 2024.2.0-589 all [installed,automatic]
intel-oneapi-common-oneapi-vars-2024.2/all,now 2024.2.0-589 all [installed,automatic]
intel-oneapi-common-vars/all,now 2024.2.0-589 all [installed,automatic]
intel-oneapi-compiler-cpp-eclipse-cfg-2024.2/all,now 2024.2.0-981 all [installed,automatic]
intel-oneapi-compiler-dpcpp-cpp-2024.2/all,now 2024.2.0-981 amd64 [installed,automatic]
intel-oneapi-compiler-dpcpp-cpp-common-2024.2/all,now 2024.2.0-981 all [installed,automatic]
intel-oneapi-compiler-dpcpp-cpp-runtime-2024.2/all,now 2024.2.0-981 amd64 [installed,automatic]
intel-oneapi-compiler-dpcpp-eclipse-cfg-2024.2/all,now 2024.2.0-981 all [installed,automatic]
intel-oneapi-compiler-shared-2024.2/all,now 2024.2.0-981 amd64 [installed,automatic]
intel-oneapi-compiler-shared-common-2024.2/all,now 2024.2.0-981 all [installed,automatic]
intel-oneapi-compiler-shared-runtime-2024.2/all,now 2024.2.0-981 amd64 [installed,automatic]
intel-oneapi-dal-2024.5/all,now 2024.5.0-281 amd64 [installed,automatic]
intel-oneapi-dal-common-2024.5/all,now 2024.5.0-281 all [installed,automatic]
intel-oneapi-dal-common-devel-2024.5/all,now 2024.5.0-281 all [installed,automatic]
intel-oneapi-dal-devel-2024.5/all,now 2024.5.0-281 amd64 [installed,automatic]
intel-oneapi-dev-utilities-2024.2/all,now 2024.2.0-516 amd64 [installed,automatic]
intel-oneapi-dev-utilities-eclipse-cfg-2024.2/all,now 2024.2.0-516 all [installed,automatic]
intel-oneapi-diagnostics-utility-2024.2/all,now 2024.2.0-517 amd64 [installed,automatic]
intel-oneapi-dnnl-2024.2/all,now 2024.2.0-570 amd64 [installed,automatic]
intel-oneapi-dnnl-devel-2024.2/all,now 2024.2.0-570 amd64 [installed,automatic]
intel-oneapi-dnnl/all,now 2024.2.0-570 amd64 [installed,automatic]
intel-oneapi-dpcpp-cpp-2024.2/all,now 2024.2.0-981 amd64 [installed,automatic]
intel-oneapi-dpcpp-ct-2024.2/all,now 2024.2.0-423 amd64 [installed,automatic]
intel-oneapi-dpcpp-ct-eclipse-cfg-2024.2/all,now 2024.2.0-423 all [installed,automatic]
intel-oneapi-dpcpp-debugger-2024.2/all,now 2024.2.0-564 amd64 [installed,automatic]
intel-oneapi-icc-eclipse-plugin-cpp-2024.2/all,now 2024.2.0-981 all [installed,automatic]
intel-oneapi-ipp-2021.12/all,now 2021.12.0-558 amd64 [installed,automatic]
intel-oneapi-ipp-common-2021.12/all,now 2021.12.0-558 all [installed,automatic]
intel-oneapi-ipp-common-devel-2021.12/all,now 2021.12.0-558 all [installed,automatic]
intel-oneapi-ipp-devel-2021.12/all,now 2021.12.0-558 amd64 [installed,automatic]
intel-oneapi-ippcp-2021.12/all,now 2021.12.0-471 amd64 [installed,automatic]
intel-oneapi-ippcp-common-2021.12/all,now 2021.12.0-471 all [installed,automatic]
intel-oneapi-ippcp-common-devel-2021.12/all,now 2021.12.0-471 all [installed,automatic]
intel-oneapi-ippcp-devel-2021.12/all,now 2021.12.0-471 amd64 [installed,automatic]
intel-oneapi-libdpstd-devel-2022.6/all,now 2022.6.0-559 amd64 [installed,automatic]
intel-oneapi-mkl-classic-devel-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-classic-include-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-classic-include-common-2024.2/all,now 2024.2.0-663 all [installed,automatic]
intel-oneapi-mkl-cluster-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-cluster-devel-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-cluster-devel-common-2024.2/all,now 2024.2.0-663 all [installed,automatic]
intel-oneapi-mkl-core-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-core-common-2024.2/all,now 2024.2.0-663 all [installed,automatic]
intel-oneapi-mkl-core-devel-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-core-devel-common-2024.2/all,now 2024.2.0-663 all [installed,automatic]
intel-oneapi-mkl-devel-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-blas-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-data-fitting-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-devel-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-devel-common-2024.2/all,now 2024.2.0-663 all [installed,automatic]
intel-oneapi-mkl-sycl-dft-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-include-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-lapack-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-rng-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-sparse-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-stats-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mkl-sycl-vm-2024.2/all,now 2024.2.0-663 amd64 [installed,automatic]
intel-oneapi-mpi-2021.13/all,now 2021.13.0-718 amd64 [installed,automatic]
intel-oneapi-mpi-devel-2021.13/all,now 2021.13.0-718 amd64 [installed,automatic]
intel-oneapi-openmp-2024.2/all,now 2024.2.0-981 amd64 [installed,automatic]
intel-oneapi-openmp-common-2024.2/all,now 2024.2.0-981 all [installed,automatic]
intel-oneapi-tbb-2021.13/all,now 2021.13.0-628 amd64 [installed,automatic]
intel-oneapi-tbb-common-2021.13/all,now 2021.13.0-628 all [installed,automatic]
intel-oneapi-tbb-common-devel-2021.13/all,now 2021.13.0-628 all [installed,automatic]
intel-oneapi-tbb-devel-2021.13/all,now 2021.13.0-628 amd64 [installed,automatic]
intel-oneapi-tcm-1.1/all,now 1.1.0-459 amd64 [installed,automatic]
intel-oneapi-tlt-2024.2/all,now 2024.2.0-527 amd64 [installed,automatic]
intel-oneapi-vtune/all,now 2024.2.0-707 amd64 [installed,automatic]
intel-opencl-icd/noble,now 23.43.27642.40-1ubuntu3 amd64 [installed]
libdrm-intel1/noble,now 2.4.120-2build1 amd64 [installed,automatic]
libze-intel-gpu-dev/noble,now 23.43.27642.40-1ubuntu3 amd64 [installed]
libze-intel-gpu1/noble,now 23.43.27642.40-1ubuntu3 amd64 [installed]
xserver-xorg-video-intel/noble,now 2:2.99.917+git20210115-1build1 amd64 [installed,automatic]
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-38-generic 6.8.0-38.38
ProcVersionSignature: Ubuntu 6.8.0-38.38-generic 6.8.8
Uname: Linux 6.8.0-38-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
Date: Fri Jul 12 11:05:34 2024
InstallationDate: Installed on 2024-07-11 (1 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
IwConfig:
lo no wireless extensions.
enp12s0 no wireless extensions.
enp13s0 no wireless extensions.
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Lsusb-t:
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/16p, 480M
|__ Port 013: Dev 002, If 0, Class=Hub, Driver=hub/4p, 480M
/: Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/9p, 20000M/x2
MachineType: ASUSTeK COMPUTER INC. System Product Name
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-38-generic root=UUID=919f9c43-e5c6-497b-b5de-8691061a77b5 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.8.0-38-generic N/A
linux-backports-modules-6.8.0-38-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.1
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/21/2024
dmi.bios.release: 33.2
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3302
dmi.board.asset.tag: Default string
dmi.board.name: Pro WS W680-ACE
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3302:bd02/21/2024:br33.2:svnASUSTeKCOMPUTERINC.:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnProWSW680-ACE:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: Server
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUSTeK COMPUTER INC.
