On Tue, 15 Sep 2020 16:41:09 -0400, Mark Salter wrote: > This splat was reported on newer Fedora kernels booting on certain > X-gene based machines: > > xgene-pmu APMC0D83:00: X-Gene PMU version 3 > Unable to handle kernel read from unreadable memory at virtual \ > address 0000000000004006 > ... > Call trace: > string+0x50/0x100 > vsnprintf+0x160/0x750 > devm_kvasprintf+0x5c/0xb4 > devm_kasprintf+0x54/0x60 > __devm_ioremap_resource+0xdc/0x1a0 > devm_ioremap_resource+0x14/0x20 > acpi_get_pmu_hw_inf.isra.0+0x84/0x15c > acpi_pmu_dev_add+0xbc/0x21c > acpi_ns_walk_namespace+0x16c/0x1e4 > acpi_walk_namespace+0xb4/0xfc > xgene_pmu_probe_pmu_dev+0x7c/0xe0 > xgene_pmu_probe.part.0+0x2c0/0x310 > xgene_pmu_probe+0x54/0x64 > platform_drv_probe+0x60/0xb4 > really_probe+0xe8/0x4a0 > driver_probe_device+0xe4/0x100 > device_driver_attach+0xcc/0xd4 > __driver_attach+0xb0/0x17c > bus_for_each_dev+0x6c/0xb0 > driver_attach+0x30/0x40 > bus_add_driver+0x154/0x250 > driver_register+0x84/0x140 > __platform_driver_register+0x54/0x60 > xgene_pmu_driver_init+0x28/0x34 > do_one_initcall+0x40/0x204 > do_initcalls+0x104/0x144 > kernel_init_freeable+0x198/0x210 > kernel_init+0x20/0x12c > ret_from_fork+0x10/0x18 > Code: 91000400 110004e1 eb08009f 540000c0 (38646846) > ---[ end trace f08c10566496a703 ]--- > > [...]
Applied to will (for-next/perf), thanks! [1/2] drivers/perf: xgene_pmu: Fix uninitialized resource struct https://git.kernel.org/will/c/a76b8236edcf [2/2] drivers/perf: thunderx2_pmu: Fix memory resource error handling https://git.kernel.org/will/c/688494a407d1 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev