While running LTP test cases splice07 and perf_event_open01 found following kernel BUG running on arm64 device juno-r2 and qemu-arm64 on the Linux next-20240812 and next-20240813 tag. GOOD: next-20240809 BAD: next-20240812 Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> Test log: -------- [ 2278.760258] check_preemption_disabled: 15 callbacks suppressed [ 2278.760282] BUG: using smp_processor_id() in preemptible [00000000] code: perf_event_open/111076 [ 2278.775032] caller is debug_smp_processor_id+0x20/0x30 [ 2278.780270] CPU: 5 UID: 0 PID: 111076 Comm: perf_event_open Not tainted 6.11.0-rc3-next-20240812 #1 [ 2278.789344] Hardware name: ARM Juno development board (r2) (DT) [ 2278.795276] Call trace: [ 2278.797724] dump_backtrace+0x9c/0x128 [ 2278.801487] show_stack+0x20/0x38 [ 2278.804812] dump_stack_lvl+0xbc/0xd0 [ 2278.808487] dump_stack+0x18/0x28 [ 2278.811811] check_preemption_disabled+0xd8/0xf8 [ 2278.816446] debug_smp_processor_id+0x20/0x30 [ 2278.820818] event_function_call+0x54/0x168 [ 2278.825015] _perf_event_enable+0x78/0xa8 [ 2278.829037] perf_event_for_each_child+0x44/0xa0 [ 2278.833672] _perf_ioctl+0x1bc/0xae0 [ 2278.837262] perf_ioctl+0x58/0x90 [ 2278.840590] __arm64_sys_ioctl+0xb4/0x100 [ 2278.844615] invoke_syscall+0x50/0x120 [ 2278.848381] el0_svc_common.constprop.0+0x48/0xf0 [ 2278.853103] do_el0_svc+0x24/0x38 [ 2278.856432] el0_svc+0x3c/0x108 [ 2278.859585] el0t_64_sync_handler+0x120/0x130 [ 2278.863956] el0t_64_sync+0x190/0x198 [ 2279.068732] BUG: using smp_processor_id() in preemptible [00000000] code: perf_event_open/111076 [ 2279.077570] caller is debug_smp_processor_id+0x20/0x30 [ 2279.082754] CPU: 1 UID: 0 PID: 111076 Comm: perf_event_open Not tainted 6.11.0-rc3-next-20240812 #1 [ 2279.091823] Hardware name: ARM Juno development board (r2) (DT) Full test log: --------- - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240813/testrun/24833616/suite/log-parser-test/test/check-kernel-bug/log - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240813/testrun/24833616/suite/log-parser-test/tests/ - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240812/testrun/24821160/suite/log-parser-test/test/check-kernel-bug-483bde618da4ec98e33eefb5e26adeb267f80cc2461569605f3166ce12b3fe82/log metadata: artifact-location: https://storage.tuxsuite.com/public/linaro/lkft/builds/2kXsz6nJO7pJ1nL4xGlKHYhiLx9/ build-url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2kXsz6nJO7pJ1nL4xGlKHYhiLx9/ build_name: gcc-13-lkftconfig-debug git_describe: next-20240812 git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next git_sha: 9e6869691724b12e1f43655eeedc35fade38120c kernel-config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2kXsz6nJO7pJ1nL4xGlKHYhiLx9/config kernel_version: 6.11.0-rc3 toolchain: gcc-13 -- Linaro LKFT https://lkft.linaro.org
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