search for: default_idle_call

...1] handle_irq_event+0x48/0x78 [ 162.480661] handle_fasteoi_irq+0xc0/0x198 [ 162.485417] generic_handle_irq+0x24/0x38 [ 162.490334] __handle_domain_irq+0x84/0xf0 [ 162.493834] gic_handle_irq+0x58/0xa8 [ 162.498464] el1_irq+0xb4/0x130 [ 162.500621] arch_cpu_idle+0x18/0x28 [ 162.504729] default_idle_call+0x1c/0x34 [ 162.508005] do_idle+0x17c/0x1f0 [ 162.510184] cpu_startup_entry+0x20/0x28 [ 162.515050] rest_init+0x250/0x260 [ 162.518228] start_kernel+0x3f0/0x41c [ 162.522987] BUG: sleeping function called from invalid context at mm/mempool.c:320 [ 162.533762] in_atomic(): 1, irqs_disabled...

...1] handle_irq_event+0x48/0x78 [ 162.480661] handle_fasteoi_irq+0xc0/0x198 [ 162.485417] generic_handle_irq+0x24/0x38 [ 162.490334] __handle_domain_irq+0x84/0xf0 [ 162.493834] gic_handle_irq+0x58/0xa8 [ 162.498464] el1_irq+0xb4/0x130 [ 162.500621] arch_cpu_idle+0x18/0x28 [ 162.504729] default_idle_call+0x1c/0x34 [ 162.508005] do_idle+0x17c/0x1f0 [ 162.510184] cpu_startup_entry+0x20/0x28 [ 162.515050] rest_init+0x250/0x260 [ 162.518228] start_kernel+0x3f0/0x41c [ 162.522987] BUG: sleeping function called from invalid context at mm/mempool.c:320 [ 162.533762] in_atomic(): 1, irqs_disabled...

...[ 162.480661] handle_fasteoi_irq+0xc0/0x198 > [ 162.485417] generic_handle_irq+0x24/0x38 > [ 162.490334] __handle_domain_irq+0x84/0xf0 > [ 162.493834] gic_handle_irq+0x58/0xa8 > [ 162.498464] el1_irq+0xb4/0x130 > [ 162.500621] arch_cpu_idle+0x18/0x28 > [ 162.504729] default_idle_call+0x1c/0x34 > [ 162.508005] do_idle+0x17c/0x1f0 > [ 162.510184] cpu_startup_entry+0x20/0x28 > [ 162.515050] rest_init+0x250/0x260 > [ 162.518228] start_kernel+0x3f0/0x41c > [ 162.522987] BUG: sleeping function called from invalid context at mm/mempool.c:320 > [ 162.533762]...

...__do_softirq+0xd1/0x283 irq_exit+0xe9/0x100 xen_evtchn_do_upcall+0x35/0x50 xen_do_hypervisor_callback+0x1e/0x40 <EOI> ? xen_hypercall_sched_op+0xa/0x20 ? xen_hypercall_sched_op+0xa/0x20 ? xen_safe_halt+0x10/0x20 ? default_idle+0x1e/0xd0 ? arch_cpu_idle+0xf/0x20 ? default_idle_call+0x2c/0x40 ? cpu_startup_entry+0x1ac/0x240 ? rest_init+0x77/0x80 ? start_kernel+0x4a7/0x4b4 ? set_init_arg+0x55/0x55 ? x86_64_start_reservations+0x24/0x26 ? xen_start_kernel+0x555/0x561 general protection fault: 0000 [#1] SMP Call Trace: <IRQ> ? napi_gro_complete+0x5e...

...decisions about probabilistic polling, as @dev->last_residency does. it is much easier to get data. 2. do a HV specific idle driver (function) so far, power management is not exposed to guest.. idle is simple for KVM guest, calling "sti" / "hlt"(cpuidle_idle_call() --> default_idle_call()).. thanks Xen guys, who has implemented the paravirt framework. I can implement it as easy as following: ???????????? --- a/arch/x86/kernel/kvm.c ???????????? +++ b/arch/x86/kernel/kvm.c ???????????? @@ -465,6 +465,12 @@ static void __init kvm_apf_trap_init(void) ???????????????????? updat...

...decisions about probabilistic polling, as @dev->last_residency does. it is much easier to get data. 2. do a HV specific idle driver (function) so far, power management is not exposed to guest.. idle is simple for KVM guest, calling "sti" / "hlt"(cpuidle_idle_call() --> default_idle_call()).. thanks Xen guys, who has implemented the paravirt framework. I can implement it as easy as following: ???????????? --- a/arch/x86/kernel/kvm.c ???????????? +++ b/arch/x86/kernel/kvm.c ???????????? @@ -465,6 +465,12 @@ static void __init kvm_apf_trap_init(void) ???????????????????? updat...

...h easier to get data. That's only true for your particular use case. > > 2. do a HV specific idle driver (function) > > so far, power management is not exposed to guest.. idle is simple for KVM > guest, > calling "sti" / "hlt"(cpuidle_idle_call() --> default_idle_call()).. > thanks Xen guys, who has implemented the paravirt framework. I can implement > it > as easy as following: > > ???????????? --- a/arch/x86/kernel/kvm.c Your email client is using a very strange formatting. > ???????????? +++ b/arch/x86/kernel/kvm.c > ???????????? @@ -...

...fff8801dae236b3 R12: 0000000000000000 > R13: ffffffff88e07c78 R14: ffffffff899ebe60 R15: 0000000000000000 > arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] > default_idle+0xc7/0x450 arch/x86/kernel/process.c:500 > arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:491 > default_idle_call+0x6d/0x90 kernel/sched/idle.c:93 > cpuidle_idle_call kernel/sched/idle.c:153 [inline] > do_idle+0x3aa/0x570 kernel/sched/idle.c:262 > cpu_startup_entry+0x10c/0x120 kernel/sched/idle.c:368 > rest_init+0xe1/0xe4 init/main.c:442 > start_kernel+0x90e/0x949 init/main.c:738 > x86_...

On 2017-11-16 06:03, Thomas Gleixner wrote: > On Wed, 15 Nov 2017, Peter Zijlstra wrote: > >> On Mon, Nov 13, 2017 at 06:06:02PM +0800, Quan Xu wrote: >>> From: Yang Zhang <yang.zhang.wz at gmail.com> >>> >>> Implement a generic idle poll which resembles the functionality >>> found in arch/. Provide weak arch_cpu_idle_poll function which

...00000000000000 Apr 02 14:20:59 helium kernel: R13: ffffffff81a10500 R14: 0000000000000000 R15: 0000000000000000 Apr 02 14:20:59 helium kernel: </IRQ> Apr 02 14:20:59 helium kernel: default_idle+0x20/0x110 Apr 02 14:20:59 helium kernel: arch_cpu_idle+0xf/0x20 Apr 02 14:20:59 helium kernel: default_idle_call+0x23/0x30 Apr 02 14:20:59 helium kernel: do_idle+0x16f/0x200 Apr 02 14:20:59 helium kernel: cpu_startup_entry+0x71/0x80 Apr 02 14:20:59 helium kernel: rest_init+0x84/0x90 Apr 02 14:20:59 helium kernel: start_kernel+0x44d/0x46e Apr 02 14:20:59 helium kernel: ? early_idt_handler_array+0x120/0x12...