** Tags added: cscc -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1835072
Title: vm related hang on Eoan 5.2.0-7-generic Status in linux package in Ubuntu: In Progress Bug description: When exercising several VMs that are large enough to start causing swapping I occasionally get the following hang: [21751.030907] INFO: task CPU 2/KVM:16977 blocked for more than 120 seconds. [21751.031268] Tainted: P OE 5.2.0-7-generic #8 [21751.031624] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [21751.032005] CPU 2/KVM D 0 16977 1 0x00000100 [21751.032007] Call Trace: [21751.032014] __schedule+0x2ba/0x650 [21751.032016] schedule+0x31/0xa0 [21751.032018] rwsem_down_read_failed+0xec/0x180 [21751.032021] ? hrtimer_try_to_cancel+0x2e/0x110 [21751.032023] down_read+0x45/0x50 [21751.032049] kvm_host_page_size+0x42/0x90 [kvm] [21751.032064] mapping_level+0x60/0x130 [kvm] [21751.032078] tdp_page_fault+0xb6/0x280 [kvm] [21751.032084] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032088] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032102] kvm_mmu_page_fault+0x79/0x640 [kvm] [21751.032106] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032109] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032112] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032115] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032118] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032121] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032124] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032127] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032130] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032133] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032136] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032139] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032142] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032145] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032148] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032151] ? vmx_vmexit+0x1b/0x30 [kvm_intel] [21751.032154] ? vmx_vmexit+0xf/0x30 [kvm_intel] [21751.032157] handle_ept_violation+0xcf/0x220 [kvm_intel] [21751.032161] vmx_handle_exit+0xab/0x7d0 [kvm_intel] [21751.032174] vcpu_enter_guest+0x2db/0x1500 [kvm] [21751.032178] ? skip_emulated_instruction+0x75/0xb0 [kvm_intel] [21751.032191] ? kvm_skip_emulated_instruction+0x59/0xa0 [kvm] [21751.032205] kvm_arch_vcpu_ioctl_run+0xd5/0x580 [kvm] [21751.032217] kvm_vcpu_ioctl+0x24f/0x620 [kvm] [21751.032219] ? __seccomp_filter+0x7e/0x6c0 [21751.032221] ? __switch_to_asm+0x40/0x70 [21751.032222] ? __switch_to_asm+0x34/0x70 [21751.032224] ? __switch_to_asm+0x40/0x70 [21751.032225] ? __switch_to_asm+0x34/0x70 [21751.032227] ? __switch_to_asm+0x40/0x70 [21751.032228] ? __switch_to_asm+0x34/0x70 [21751.032230] ? __switch_to_asm+0x40/0x70 [21751.032232] ? __switch_to_asm+0x34/0x70 [21751.032234] do_vfs_ioctl+0xad/0x640 [21751.032236] ? __secure_computing+0x42/0xd0 [21751.032238] ksys_ioctl+0x6b/0xa0 [21751.032239] __x64_sys_ioctl+0x1e/0x30 [21751.032242] do_syscall_64+0x5e/0x140 [21751.032244] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [21751.032245] RIP: 0033:0x7f64a3fb0417 [21751.032250] Code: Bad RIP value. [21751.032251] RSP: 002b:00007f64937fd578 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [21751.032252] RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007f64a3fb0417 [21751.032253] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000014 [21751.032254] RBP: 0000000000000000 R08: 00005589927145d0 R09: 000000003b9aca00 [21751.032255] R10: 0000000000000001 R11: 0000000000000246 R12: 00005589935ff710 [21751.032255] R13: 00007f64a199d000 R14: 0000000000000000 R15: 00005589935ff710 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1835072/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
