Kernel crash when loading i915kms
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Date: Sat, 26 Apr 2025 10:57:14 UTC
Hello, I have a Dell Precision 3490 laptop. It has Intel+NVIDIA graphics. I am trying to just get the Intel stuff going. But when I load the i915kms kernel module, I get an instant kernel panic. If anyone has an idea about what goes wrong here or what to try to debug this further, I would very much appreciate that. I am currently running 14.2-STABLE (FreeBSD baku.borderworlds.dk 14.2-STABLE FreeBSD 14.2-STABLE stable/14-n271053-e6a470ffcbd7 GENERIC amd64). The kernel modules are built for the same version of the source tree. This is the display from "pciconf -lv" output: vgapci1@pci0:0:2:0: class=0x030000 rev=0x08 hdr=0x00 vendor=0x8086 device=0x7d55 subvendor=0x1028 subdevice=0x0cb3 vendor = 'Intel Corporation' device = 'Meteor Lake-P [Intel Arc Graphics]' class = display subclass = VGA This is what I get from "kgdb" on the crash dump: Reading symbols from /boot/kernel/kernel... Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug... Unread portion of the kernel message buffer: [drm ERROR :fw_domain_wait_ack_set] gt: timed out waiting for forcewake ack request. drmn1: [drm:0xffffffff88984c34s] 0xfffffe01a4c3b728V <4>Missing case ((&(i915)->__info)->platform == 39) drmn1: [drm] mslice mask all zero! <4>Missing case ((&(i915)->__info)->platform == 39) <4>drmn drmn1: drm_WARN_ON(engine_mask == 0) panic: vm_fault_lookup: fault on nofault entry, addr: 0xfffffe01a98b0000 cpuid = 16 time = 1745167227 KDB: stack backtrace: #0 0xffffffff80b928bd at kdb_backtrace+0x5d #1 0xffffffff80b44421 at vpanic+0x161 #2 0xffffffff80b442b3 at panic+0x43 #3 0xffffffff80ec72d7 at vm_fault+0x15b7 #4 0xffffffff80ec5c31 at vm_fault_trap+0x81 #5 0xffffffff810379aa at trap_pfault+0x20a #6 0xffffffff8100e018 at calltrap+0x8 #7 0xffffffff8897efe4 at intel_uncore_forcewake_get+0xc4 #8 0xffffffff88a1e2d0 at __intel_gt_reset+0x80 #9 0xffffffff888f4685 at i915_driver_probe+0xf55 #10 0xffffffff80dc4493 at linux_pci_attach_device+0x443 #11 0xffffffff80b8129d at device_attach+0x43d #12 0xffffffff80b830c3 at bus_generic_driver_added+0x73 #13 0xffffffff80b7e879 at devclass_driver_added+0x29 #14 0xffffffff80b7e80e at devclass_add_driver+0x11e #15 0xffffffff80dc534c at _linux_pci_register_driver+0xcc #16 0xffffffff889045c9 at i915kms_evh+0x299 #17 0xffffffff80b1e5c5 at module_register_init+0x85 Uptime: 1m11s Dumping 1457 out of 32176 MB:..2%..11%..21%..31%..41%..51%..61%..71%..81%..91% Best regards Kristian