Pre-submission Checklist
GPU Hardware
Intel Arc Pro B70
DRI Devices Information
$ ls -ls /dev/dri/*
0 crw-rw----+ 1 root video 226, 1 Aug 3 17:48 /dev/dri/card1
0 crw-rw----+ 1 root video 226, 2 Aug 3 17:48 /dev/dri/card2
0 crw-rw-rw-. 1 root render 226, 128 Aug 2 21:43 /dev/dri/renderD128
0 crw-rw-rw-. 1 root render 226, 129 Aug 2 21:43 /dev/dri/renderD129
/dev/dri/by-path:
total 0
0 lrwxrwxrwx. 1 root root 8 Aug 2 21:43 pci-0000:03:00.0-card -> ../card1
0 lrwxrwxrwx. 1 root root 13 Aug 2 21:43 pci-0000:03:00.0-render -> ../renderD128
0 lrwxrwxrwx. 1 root root 8 Aug 2 21:43 pci-0000:19:00.0-card -> ../card2
0 lrwxrwxrwx. 1 root root 13 Aug 2 21:43 pci-0000:19:00.0-render -> ../renderD129
$ ls -la /dev/dri/by-path/
total 0
drwxr-xr-x. 2 root root 120 Aug 2 21:43 .
drwxr-xr-x. 3 root root 140 Aug 2 21:43 ..
lrwxrwxrwx. 1 root root 8 Aug 2 21:43 pci-0000:03:00.0-card -> ../card1
lrwxrwxrwx. 1 root root 13 Aug 2 21:43 pci-0000:03:00.0-render -> ../renderD128
lrwxrwxrwx. 1 root root 8 Aug 2 21:43 pci-0000:19:00.0-card -> ../card2
lrwxrwxrwx. 1 root root 13 Aug 2 21:43 pci-0000:19:00.0-render -> ../renderD129
GPU Detailed Information (lspci output)
$ sudo lspci -vvv -k -s 0000:03:00.0
03:00.0 VGA compatible controller: Intel Corporation Battlemage G31 [Arc Pro B70] (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device 1701
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupts: unknown pin routed to IRQ 196, MSI(X) routed to IRQ 196 19:57 [37/605]
IOMMU group: 16
Region 0: Memory at f800000000 (64-bit, prefetchable) [size=16M]
Region 2: Memory at f000000000 (64-bit, prefetchable) [size=32G]
Expansion ROM at f5c00000 [disabled] [size=2M]
Capabilities: [40] Vendor Specific Information: Intel Capabilities v1
CapA: Peg60Dis- Peg12Dis- Peg11Dis- Peg10Dis- PeLWUDis- DmiWidth=x4
EccDis- ForceEccEn- VTdDis- DmiG2Dis- PegG2Dis- DDRMaxSize=Unlimited
1NDis- CDDis- DDPCDis- X2APICEn- PDCDis- IGDis- CDID=0 CRID=0
DDROCCAP+ OCEn- DDRWrtVrefEn+ DDR3LEn+
CapB: ImguDis- OCbySSKUCap- OCbySSKUEn- SMTCap- CacheSzCap 0x0
SoftBinCap- DDR3MaxFreqWithRef100=Disabled PegG3Dis-
PkgTyp- AddGfxEn- AddGfxCap- PegX16Dis- DmiG3Dis- GmmDis-
DDR3MaxFreq=2932MHz LPDDR3En-
Capabilities: [70] Express (v2) Endpoint, IntMsgNum 0
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0W TEE-IO-
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes, LnkDisable- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- FltModeDis-
LnkSta: Speed 2.5GT/s, Width x1
TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range B, TimeoutDis+ NROPrPrP- LTR+
10BitTagComp+ 10BitTagReq+ OBFF Not Supported, ExtFmt+ EETLPPrefix-
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
FRS- TPHComp- ExtTPHComp-
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
AtomicOpsCtl: ReqEn-
IDOReq- IDOCompl- LTR+ EmergencyPowerReductionReq-
10BitTagReq- OBFF Disabled, EETLPPrefixBlk-
LnkCap2: Supported Link Speeds: 2.5GT/s, Crosslink- Retimer- 2Retimers- DRS-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
Retimer- 2Retimers- CrosslinkRes: unsupported, FltMode-
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable+ 64bit+
Address: 00000000fee00000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [d0] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [110 v1] Null
Capabilities: [200 v1] Address Translation Service (ATS)
ATSCap: Invalidate Queue Depth: 00
ATSCtl: Enable+, Smallest Translation Unit: 00
Capabilities: [420 v1] Physical Resizable BAR
BAR 2: current size: 32GB, supported: 256MB 512MB 1GB 2GB 4GB 8GB 16GB 32GB
Capabilities: [220 v1] Virtual Resizable BAR
BAR 2: current size: 8GB, supported: 256MB 512MB 1GB 2GB 4GB 8GB 16GB 32GB
Capabilities: [320 v1] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration- 10BitTagReq+ IntMsgNum 0
IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy+ 10BitTagReq-
IOVSta: Migration-
Initial VFs: 4, Total VFs: 4, Number of VFs: 0, Function Dependency Link: 00
VF offset: 1, stride: 1, Device ID: e223
Supported Page Size: 00000553, System Page Size: 00000001
Region 0: Memory at 0000000000000000 (64-bit, prefetchable)
Region 2: Memory at 0000000000000000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Capabilities: [400 v1] Latency Tolerance Reporting
Max snoop latency: 1048576ns
Max no snoop latency: 1048576ns
Kernel driver in use: xe
Kernel modules: xe
Driver Version
26.18.38308.4
Installed GPU Driver Packages
$ sudo rpm -qa | grep -iE "igc|gmm|opencl|level-zero|level_zero|ocloc|libze"
libsigc++30-3.6.0-6.fc43.x86_64
wine-opencl-11.0-2.fc43.x86_64
wine-opencl-11.0-2.fc43.i686
cuda-opencl-12-9-12.9.19-1.x86_64
intel-gmmlib-22.10.0-2.fc43.x86_64
intel-opencl-clang-15.0.9-2.fc43.x86_64
libsigc++20-2.12.2-1.fc43.x86_64
oneapi-level-zero-1.28.6-1.fc43.x86_64
oneapi-level-zero-devel-1.28.6-1.fc43.x86_64
intel-level-zero-gpu-raytracing-1.2.0-2.fc43.x86_64
oneapi-level-zero-zello_world-1.28.6-1.fc43.x86_64
intel-igc-2.34.4-2.fc43.x86_64
intel-igc-libs-2.34.4-2.fc43.x86_64
intel-level-zero-26.18.38308.4-2.fc43.x86_64
intel-ocloc-26.18.38308.4-2.fc43.x86_64
intel-opencl-26.18.38308.4-2.fc43.x86_64
Driver Installation Details
Distribution: Fedora 43
Regalar dnf updates.
Linux Distribution
Fedora / RHEL
Other Linux Distribution
Fedora 43
Kernel Version & Boot Parameters
$ uname -r
7.1.5-101.fc43.x86_64
$ cat /proc/cmdline
BOOT_IMAGE=(hd1,gpt2)/vmlinuz-7.1.5-101.fc43.x86_64 root=UUID=bdad322a-efcb-4f9d-94fc-10fead02837c ro rootflags=subvol=root rhgb quiet elevator=none amdgpu.modeset=1
$ lsmod | grep -E 'i915|xe'
xe 4993024 8
intel_vsec 28672 2 pmt_telemetry,xe
drm_gpuvm 57344 1 xe
drm_gpusvm_helper 61440 1 xe
drm_buddy 12288 2 amdgpu,xe
i2c_algo_bit 20480 2 amdgpu,xe
drm_ttm_helper 20480 3 amdgpu,xe
ttm 163840 3 amdgpu,drm_ttm_helper,xe
drm_exec 12288 3 drm_gpuvm,amdgpu,xe
gpu_sched 73728 2 amdgpu,xe
drm_suballoc_helper 24576 2 amdgpu,xe
drm_display_helper 364544 2 amdgpu,xe
video 86016 2 amdgpu,xe
cec 106496 3 drm_display_helper,amdgpu,xe
Actual Behavior
Disclosure: 26.18.38308.4 is the newest driver packaged for Fedora; the 26.27.39122.11 release ships only .deb packages, so I have not been able to test on it. I did scan the 26.18.38308.4 -> 26.27.39122.11 commit range (673 commits) by subject and found nothing that matches the path described below.
With llama.cpp, when allocating too much VRAM (such as when attempting to increase context size), the process detects the over-commit and then hangs in exit().
The process exit spins forever at 100% CPU. Backtrace:
#0 NEO::DrmDirectSubmission<Xe2HpgCoreFamily, RenderDispatcher<Xe2HpgCoreFamily>>::ensureRingCompletion()
#1 DirectSubmissionHw<Xe2HpgCoreFamily, RenderDispatcher<Xe2HpgCoreFamily>>::stopRingBuffer(bool)
#2 CommandStreamReceiverHw<Xe2HpgCoreFamily>::stopDirectSubmission(bool, bool)
#3 NEO::Device::stopDirectSubmissionAndWaitForCompletion()
#4 L0::Device::releaseResources()
#5 L0::Device::~Device()
#6 L0::DriverHandle::~DriverHandle()
#7 _dl_fini / exit()
No timeout, no error propagation. SIGKILL is required; the GPU recovers after the kill.
Expected Behavior
The function call should return and the application should exit cleanly.
Reproduction Rate
Always reproduces - 100%
Steps to Reproduce
l0-overcommit-repro.c
Compile and run the attached program.
Is this a regression?
Last Known Working Driver Version
No response
First Known Failing Driver Version
No response
API Call Logs
No response
strace Logs
No response
System Logs / dmesg Output
$ sudo dmesg --since '4 hours ago' | grep -i -E 'i915|xe|drm|gpu' | tail -n 100
[70796.532842] traps: l0-overcommit-r[508307] general protection fault ip:7f0e9f17a7ed sp:7fff2af74c50 error:0 in libze_intel_gpu.so.1.15.38308[17a7ed,7f0e9f000000+7f4000]
[70813.099289] traps: l0-overcommit-r[508502] general protection fault ip:7fbc7157a7ed sp:7ffcb3efd250 error:0 in libze_intel_gpu.so.1.15.38308[17a7ed,7fbc71400000+7f4000]
[71030.507820] traps: l0-overcommit-r[510098] general protection fault ip:7fc32837a7ed sp:7ffc51150e70 error:0 in libze_intel_gpu.so.1.15.38308[17a7ed,7fc328200000+7f4000]
[71199.429479] traps: l0-overcommit-r[511201] general protection fault ip:7f0a8ff7a7ed sp:7ffd462b3420 error:0 in libze_intel_gpu.so.1.15.38308[17a7ed,7f0a8fe00000+7f4000]
[73746.587315] traps: l0-overcommit-r[534516] general protection fault ip:7f525f77a7ed sp:7ffe18c717a0 error:0 in libze_intel_gpu.so.1.15.38308[17a7ed,7f525f600000+7f4000]
[73775.132545] traps: l0-overcommit-r[534728] general protection fault ip:7fbc4257a7ed sp:7fff1ef315d0 error:0 in libze_intel_gpu.so.1.15.38308[17a7ed,7fbc42400000+7f4000]
Backtrace (if crash or hang occurred)
#0 NEO::DrmDirectSubmission<Xe2HpgCoreFamily, RenderDispatcher<Xe2HpgCoreFamily>>::ensureRingCompletion()
#1 DirectSubmissionHw<Xe2HpgCoreFamily, RenderDispatcher<Xe2HpgCoreFamily>>::stopRingBuffer(bool)
#2 CommandStreamReceiverHw<Xe2HpgCoreFamily>::stopDirectSubmission(bool, bool)
#3 NEO::Device::stopDirectSubmissionAndWaitForCompletion()
#4 L0::Device::releaseResources()
#5 L0::Device::~Device()
#6 L0::DriverHandle::~DriverHandle()
#7 _dl_fini / exit()
Source Code / Reproducer
l0-overcommit-repro.c
Compile and run the attached program.
Command Line / Application Details
No response
oneAPI Version (if applicable)
No response
Screenshots / Video
No response
Additional Notes
If this is related to #912 then this is a regression as I am on a later version of the driver.
Pre-submission Checklist
GPU Hardware
Intel Arc Pro B70
DRI Devices Information
GPU Detailed Information (lspci output)
Driver Version
26.18.38308.4
Installed GPU Driver Packages
Driver Installation Details
Distribution: Fedora 43
Regalar dnf updates.
Linux Distribution
Fedora / RHEL
Other Linux Distribution
Fedora 43
Kernel Version & Boot Parameters
Actual Behavior
Disclosure: 26.18.38308.4 is the newest driver packaged for Fedora; the 26.27.39122.11 release ships only .deb packages, so I have not been able to test on it. I did scan the 26.18.38308.4 -> 26.27.39122.11 commit range (673 commits) by subject and found nothing that matches the path described below.
With llama.cpp, when allocating too much VRAM (such as when attempting to increase context size), the process detects the over-commit and then hangs in exit().
The process exit spins forever at 100% CPU. Backtrace:
No timeout, no error propagation. SIGKILL is required; the GPU recovers after the kill.
Expected Behavior
The function call should return and the application should exit cleanly.
Reproduction Rate
Always reproduces - 100%
Steps to Reproduce
l0-overcommit-repro.c
Compile and run the attached program.
Is this a regression?
Last Known Working Driver Version
No response
First Known Failing Driver Version
No response
API Call Logs
No response
strace Logs
No response
System Logs / dmesg Output
Backtrace (if crash or hang occurred)
Source Code / Reproducer
l0-overcommit-repro.c
Compile and run the attached program.
Command Line / Application Details
No response
oneAPI Version (if applicable)
No response
Screenshots / Video
No response
Additional Notes
If this is related to #912 then this is a regression as I am on a later version of the driver.