On Mon, Nov 07, 2022 at 09:29:33AM +0000, Saarinen, Jani wrote: > Hi Russell, > Can you make new gitlab: https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs ? Hi, Unfortunately, I can't get any more information, and trying to get a photo of the problem is utterly impossible, beacuse it's almost always a momentary corruption - out of all the cases, I have only seen it remain on-screen once. Also, it can take months of suspend/resume cycles for it to occur, which makes it difficult to reproduce using the "latest" kernel - beacuse by the time the latest kernel has shown the problem, there's a more modern kernel! Using the intel reg dumper may provide some useful information. That said, running it from the debian stable repository gives me: (intel_reg:338236) intel_mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../lib/intel_mmio.c:146: (intel_reg:338236) intel_mmio-CRITICAL: Failed assertion: !(error != 0) (intel_reg:338236) intel_mmio-CRITICAL: Last errno: 1, Operation not permitted (intel_reg:338236) intel_mmio-CRITICAL: Couldn't map MMIO region Test (null) failed. **** DEBUG **** (intel_reg:338236) intel_chipset-DEBUG: Test requirement passed: pci_dev (intel_reg:338236) intel_mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../lib/intel_mmio.c:146: (intel_reg:338236) intel_mmio-CRITICAL: Failed assertion: !(error != 0) (intel_reg:338236) intel_mmio-CRITICAL: Last errno: 1, Operation not permitted (intel_reg:338236) intel_mmio-CRITICAL: Couldn't map MMIO region (intel_reg:338236) igt_core-INFO: Stack trace: (intel_reg:338236) igt_core-INFO: #0 [__igt_fail_assert+0x113] (intel_reg:338236) igt_core-INFO: #1 [intel_mmio_use_pci_bar+0xc4] (intel_reg:338236) igt_core-INFO: #2 [intel_register_access_init+0x1b] (intel_reg:338236) igt_core-INFO: #3 [<unknown>+0xec025c3a] (intel_reg:338236) igt_core-INFO: #4 [<unknown>+0xec0246f6] (intel_reg:338236) igt_core-INFO: #5 [__libc_start_main+0xea] (intel_reg:338236) igt_core-INFO: #6 [<unknown>+0xec0247ba] **** END **** -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
