https://bugzilla.kernel.org/show_bug.cgi?id=216388 --- Comment #6 from Robert Dinse (nanook@xxxxxxxxxx) --- Installed 5.19.6 on a couple of machines today, still getting CPU stalls but in random locations: [ 6.601788] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 4-... } 3 jiffies s: 53 root: 0x10/. [ 6.601802] rcu: blocking rcu_node structures (internal RCU debug): [ 6.601806] Task dump for CPU 4: [ 6.601808] task:systemd-udevd state:R running task stack: 0 pid: 468 ppid: 454 flags:0x0000400a [ 6.604313] Call Trace: [ 6.604324] <TASK> [ 6.604326] ? cpumask_any_but+0x35/0x50 [ 6.604336] ? x2apic_send_IPI_allbutself+0x2f/0x40 [ 6.604339] ? do_sync_core+0x2a/0x30 [ 6.604342] ? cpumask_next+0x23/0x30 [ 6.604344] ? smp_call_function_many_cond+0xea/0x370 [ 6.604347] ? text_poke_memset+0x20/0x20 [ 6.604350] ? arch_unregister_cpu+0x50/0x50 [ 6.604352] ? on_each_cpu_cond_mask+0x1d/0x30 [ 6.604354] ? text_poke_bp_batch+0x1fb/0x210 [ 6.604358] ? enter_smm.constprop.0+0x51a/0xa70 [kvm] [ 6.604414] ? vmx_set_cr0+0x16f0/0x16f0 [kvm_intel] [ 6.604457] ? enter_smm.constprop.0+0x519/0xa70 [kvm] [ 6.604501] ? text_poke_bp+0x49/0x70 [ 6.604504] ? __static_call_transform+0x7f/0x120 [ 6.604506] ? arch_static_call_transform+0x87/0xa0 [ 6.604508] ? enter_smm.constprop.0+0x519/0xa70 [kvm] [ 6.604552] ? __static_call_update+0x16e/0x220 [ 6.604554] ? vmx_set_cr0+0x16f0/0x16f0 [kvm_intel] [ 6.604567] ? kvm_arch_hardware_setup+0x35a/0x17f0 [kvm] [ 6.604611] ? __kmalloc_node+0x16c/0x380 [ 6.604615] ? kvm_init+0xa2/0x400 [kvm] [ 6.604654] ? hardware_setup+0x7e2/0x8cc [kvm_intel] [ 6.604666] ? vmx_init+0xf9/0x201 [kvm_intel] [ 6.604676] ? hardware_setup+0x8cc/0x8cc [kvm_intel] [ 6.604685] ? do_one_initcall+0x47/0x1e0 [ 6.604689] ? kmem_cache_alloc_trace+0x16c/0x2b0 [ 6.604692] ? do_init_module+0x50/0x1f0 [ 6.604694] ? load_module+0x21bd/0x25e0 [ 6.604696] ? ima_post_read_file+0xd5/0x100 [ 6.604700] ? kernel_read_file+0x23d/0x2e0 [ 6.604703] ? __do_sys_finit_module+0xbd/0x130 [ 6.604705] ? __do_sys_finit_module+0xbd/0x130 [ 6.604708] ? __x64_sys_finit_module+0x18/0x20 [ 6.604710] ? do_syscall_64+0x58/0x80 [ 6.604713] ? syscall_exit_to_user_mode+0x1b/0x40 [ 6.604715] ? do_syscall_64+0x67/0x80 [ 6.604718] ? switch_fpu_return+0x4e/0xc0 [ 6.604720] ? exit_to_user_mode_prepare+0x184/0x1e0 [ 6.604723] ? syscall_exit_to_user_mode+0x1b/0x40 [ 6.604725] ? do_syscall_64+0x67/0x80 [ 6.604728] ? do_syscall_64+0x67/0x80 [ 6.604730] ? do_syscall_64+0x67/0x80 [ 6.604732] ? sysvec_call_function+0x4b/0xa0 [ 6.604735] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 6.604739] </TASK> [ 6.697044] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 4-... } 13 jiffies s: 53 root: 0x10/. [ 6.697051] rcu: blocking rcu_node structures (internal RCU debug): [ 6.697052] Task dump for CPU 4: [ 6.697053] task:systemd-udevd state:R running task stack: 0 pid: 468 ppid: 454 flags:0x0000400a [ 6.697057] Call Trace: [ 6.697058] <TASK> [ 6.697059] ? cpumask_any_but+0x35/0x50 [ 6.697065] ? x2apic_send_IPI_allbutself+0x2f/0x40 [ 6.697068] ? do_sync_core+0x2a/0x30 [ 6.697071] ? cpumask_next+0x23/0x30 [ 6.697072] ? smp_call_function_many_cond+0xea/0x370 [ 6.697075] ? text_poke_memset+0x20/0x20 [ 6.697077] ? arch_unregister_cpu+0x50/0x50 [ 6.697080] ? on_each_cpu_cond_mask+0x1d/0x30 [ 6.697081] ? text_poke_bp_batch+0x1fb/0x210 [ 6.697084] ? kvm_set_msr_common+0x939/0x1060 [kvm] [ 6.697133] ? vmx_set_efer.part.0+0x160/0x160 [kvm_intel] [ 6.697147] ? kvm_set_msr_common+0x938/0x1060 [kvm] [ 6.697187] ? text_poke_bp+0x49/0x70 [ 6.697189] ? __static_call_transform+0x7f/0x120 [ 6.697191] ? arch_static_call_transform+0x87/0xa0 [ 6.697193] ? kvm_set_msr_common+0x938/0x1060 [kvm] [ 6.697234] ? __static_call_update+0x16e/0x220 [ 6.697236] ? vmx_set_efer.part.0+0x160/0x160 [kvm_intel] [ 6.697246] ? kvm_arch_hardware_setup+0x423/0x17f0 [kvm] [ 6.697286] ? __kmalloc_node+0x16c/0x380 [ 6.697290] ? kvm_init+0xa2/0x400 [kvm] [ 6.697326] ? hardware_setup+0x7e2/0x8cc [kvm_intel] [ 6.697336] ? vmx_init+0xf9/0x201 [kvm_intel] [ 6.697345] ? hardware_setup+0x8cc/0x8cc [kvm_intel] [ 6.697353] ? do_one_initcall+0x47/0x1e0 [ 6.697356] ? kmem_cache_alloc_trace+0x16c/0x2b0 [ 6.697359] ? do_init_module+0x50/0x1f0 [ 6.697360] ? load_module+0x21bd/0x25e0 [ 6.697362] ? ima_post_read_file+0xd5/0x100 [ 6.697365] ? kernel_read_file+0x23d/0x2e0 [ 6.697368] ? __do_sys_finit_module+0xbd/0x130 [ 6.697370] ? __do_sys_finit_module+0xbd/0x130 [ 6.697372] ? __x64_sys_finit_module+0x18/0x20 [ 6.697373] ? do_syscall_64+0x58/0x80 [ 6.697376] ? syscall_exit_to_user_mode+0x1b/0x40 [ 6.697377] ? do_syscall_64+0x67/0x80 [ 6.697379] ? switch_fpu_return+0x4e/0xc0 [ 6.697382] ? exit_to_user_mode_prepare+0x184/0x1e0 [ 6.697384] ? syscall_exit_to_user_mode+0x1b/0x40 [ 6.697386] ? do_syscall_64+0x67/0x80 [ 6.697387] ? do_syscall_64+0x67/0x80 [ 6.697389] ? do_syscall_64+0x67/0x80 [ 6.697391] ? sysvec_call_function+0x4b/0xa0 [ 6.697393] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 6.697397] </TASK> [ 6.798781] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 4-... } 23 jiffies s: 53 root: 0x10/. [ 6.798787] rcu: blocking rcu_node structures (internal RCU debug): [ 6.798833] Task dump for CPU 4: [ 6.798952] task:systemd-udevd state:R running task stack: 0 pid: 468 ppid: 454 flags:0x0000400a [ 6.798957] Call Trace: [ 6.798959] <TASK> [ 6.798960] ? cpumask_any_but+0x35/0x50 [ 6.798967] ? x2apic_send_IPI_allbutself+0x2f/0x40 [ 6.798969] ? do_sync_core+0x2a/0x30 [ 6.800010] ? cpumask_next+0x23/0x30 [ 6.800014] ? smp_call_function_many_cond+0xea/0x370 [ 6.800017] ? text_poke_memset+0x20/0x20 [ 6.800019] ? arch_unregister_cpu+0x50/0x50 [ 6.800024] ? __SCT__kvm_x86_set_rflags+0x8/0x8 [kvm] [ 6.800096] ? vmx_get_rflags+0x130/0x130 [kvm_intel] [ 6.800109] ? on_each_cpu_cond_mask+0x1d/0x30 [ 6.800110] ? text_poke_bp_batch+0xaf/0x210 [ 6.800113] ? vmx_get_rflags+0x130/0x130 [kvm_intel] [ 6.800121] ? __SCT__kvm_x86_set_rflags+0x8/0x8 [kvm] [ 6.800172] ? vmx_get_rflags+0x130/0x130 [kvm_intel] [ 6.800180] ? text_poke_bp+0x49/0x70 [ 6.800182] ? __static_call_transform+0x7f/0x120 [ 6.800183] ? arch_static_call_transform+0x58/0xa0 [ 6.800185] ? __SCT__kvm_x86_set_rflags+0x8/0x8 [kvm] [ 6.800233] ? __static_call_update+0x62/0x220 [ 6.800235] ? vmx_get_rflags+0x130/0x130 [kvm_intel] [ 6.800243] ? kvm_arch_hardware_setup+0x581/0x17f0 [kvm] [ 6.800284] ? __kmalloc_node+0x16c/0x380 [ 6.800288] ? kvm_init+0xa2/0x400 [kvm] [ 6.800324] ? hardware_setup+0x7e2/0x8cc [kvm_intel] [ 6.800334] ? vmx_init+0xf9/0x201 [kvm_intel] [ 6.800342] ? hardware_setup+0x8cc/0x8cc [kvm_intel] [ 6.800350] ? do_one_initcall+0x47/0x1e0 [ 6.800352] ? kmem_cache_alloc_trace+0x16c/0x2b0 [ 6.800355] ? do_init_module+0x50/0x1f0 [ 6.800357] ? load_module+0x21bd/0x25e0 [ 6.800358] ? ima_post_read_file+0xd5/0x100 [ 6.800361] ? kernel_read_file+0x23d/0x2e0 [ 6.800364] ? __do_sys_finit_module+0xbd/0x130 [ 6.800365] ? __do_sys_finit_module+0xbd/0x130 [ 6.800368] ? __x64_sys_finit_module+0x18/0x20 [ 6.800369] ? do_syscall_64+0x58/0x80 [ 6.800371] ? syscall_exit_to_user_mode+0x1b/0x40 [ 6.800373] ? do_syscall_64+0x67/0x80 [ 6.800375] ? switch_fpu_return+0x4e/0xc0 [ 6.800377] ? exit_to_user_mode_prepare+0x184/0x1e0 [ 6.800379] ? syscall_exit_to_user_mode+0x1b/0x40 [ 6.800380] ? do_syscall_64+0x67/0x80 [ 6.800382] ? do_syscall_64+0x67/0x80 [ 6.800384] ? do_syscall_64+0x67/0x80 [ 6.800385] ? sysvec_call_function+0x4b/0xa0 [ 6.800387] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 6.800391] </TASK> Are these related or should I open a new ticket? These occurred right after boot. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
