Re: 3.10.X kernel/jump_label kvm
On 2014-03-03 19:17, Stefan Priebe wrote:
Am 03.03.2014 17:36, schrieb Paolo Bonzini:
Il 28/02/2014 20:47, Stefan Priebe ha scritto:
Hello,
i got this stack trace multiple times while using a vanilla 3.10.32
kernel and already sent it to the list in december but got no replies.
Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346:
Thanks - will try it. So this one should also go into 3.10.X
It's part of 3.10.29. Only .26..28 were affected by the regression below.
Jan
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1673940cf9c3..775702f649ca 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1355,7 +1355,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64
value)
vcpu-arch.apic_base = value;
/* update jump label if enable bit changes */
- if ((vcpu-arch.apic_base ^ value) MSR_IA32_APICBASE_ENABLE) {
+ if ((old_value ^ value) MSR_IA32_APICBASE_ENABLE) {
if (value MSR_IA32_APICBASE_ENABLE)
static_key_slow_dec_deferred(apic_hw_disabled);
else
Paolo
--
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux
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Re: 3.10.X kernel/jump_label kvm
Am 04.03.2014 11:01, schrieb Jan Kiszka:
On 2014-03-03 19:17, Stefan Priebe wrote:
Am 03.03.2014 17:36, schrieb Paolo Bonzini:
Il 28/02/2014 20:47, Stefan Priebe ha scritto:
Hello,
i got this stack trace multiple times while using a vanilla 3.10.32
kernel and already sent it to the list in december but got no replies.
Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346:
Thanks - will try it. So this one should also go into 3.10.X
It's part of 3.10.29. Only .26..28 were affected by the regression below.
Jan
HI Jan,
but i'm using 3.10.32. So it is another bug i'm seeing?
Stefan
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1673940cf9c3..775702f649ca 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1355,7 +1355,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64
value)
vcpu-arch.apic_base = value;
/* update jump label if enable bit changes */
- if ((vcpu-arch.apic_base ^ value) MSR_IA32_APICBASE_ENABLE) {
+ if ((old_value ^ value) MSR_IA32_APICBASE_ENABLE) {
if (value MSR_IA32_APICBASE_ENABLE)
static_key_slow_dec_deferred(apic_hw_disabled);
else
Paolo
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Re: 3.10.X kernel/jump_label kvm
On 2014-03-04 11:26, Stefan Priebe - Profihost AG wrote: Am 04.03.2014 11:01, schrieb Jan Kiszka: On 2014-03-03 19:17, Stefan Priebe wrote: Am 03.03.2014 17:36, schrieb Paolo Bonzini: Il 28/02/2014 20:47, Stefan Priebe ha scritto: Hello, i got this stack trace multiple times while using a vanilla 3.10.32 kernel and already sent it to the list in december but got no replies. Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346: Thanks - will try it. So this one should also go into 3.10.X It's part of 3.10.29. Only .26..28 were affected by the regression below. Jan HI Jan, but i'm using 3.10.32. So it is another bug i'm seeing? Yes, that's the logical consequence. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SES-DE Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: 3.10.X kernel/jump_label kvm
Il 28/02/2014 20:47, Stefan Priebe ha scritto:
Hello,
i got this stack trace multiple times while using a vanilla 3.10.32
kernel and already sent it to the list in december but got no replies.
Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346:
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1673940cf9c3..775702f649ca 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1355,7 +1355,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64
value)
vcpu-arch.apic_base = value;
/* update jump label if enable bit changes */
- if ((vcpu-arch.apic_base ^ value) MSR_IA32_APICBASE_ENABLE) {
+ if ((old_value ^ value) MSR_IA32_APICBASE_ENABLE) {
if (value MSR_IA32_APICBASE_ENABLE)
static_key_slow_dec_deferred(apic_hw_disabled);
else
Paolo
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Re: 3.10.X kernel/jump_label kvm
Am 03.03.2014 17:36, schrieb Paolo Bonzini:
Il 28/02/2014 20:47, Stefan Priebe ha scritto:
Hello,
i got this stack trace multiple times while using a vanilla 3.10.32
kernel and already sent it to the list in december but got no replies.
Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346:
Thanks - will try it. So this one should also go into 3.10.X
Stefan
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1673940cf9c3..775702f649ca 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1355,7 +1355,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64
value)
vcpu-arch.apic_base = value;
/* update jump label if enable bit changes */
- if ((vcpu-arch.apic_base ^ value) MSR_IA32_APICBASE_ENABLE) {
+ if ((old_value ^ value) MSR_IA32_APICBASE_ENABLE) {
if (value MSR_IA32_APICBASE_ENABLE)
static_key_slow_dec_deferred(apic_hw_disabled);
else
Paolo
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Re: 3.10.X kernel/jump_label kvm
Il 03/03/2014 19:17, Stefan Priebe ha scritto: Am 03.03.2014 17:36, schrieb Paolo Bonzini: Il 28/02/2014 20:47, Stefan Priebe ha scritto: Hello, i got this stack trace multiple times while using a vanilla 3.10.32 kernel and already sent it to the list in december but got no replies. Please try the patch of commit 0dce7cd67fd9055c4a2ff278f8af1431e646d346: Thanks - will try it. So this one should also go into 3.10.X Yes, I've sent it to sta...@vger.kernel.org already. Paolo -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: 3.10.X kernel/jump_label kvm
On 02/28/2014 11:47 PM, Stefan Priebe wrote: Hello, i got this stack trace multiple times while using a vanilla 3.10.32 kernel and already sent it to the list in december but got no replies. Hi, What kind of workload the host system is experiencing at same time? Does this event correlate with high memory pressure? [78136.551061] WARNING: at kernel/jump_label.c:80 __static_key_slow_dec+0xb6/0xc0() [78136.551062] jump label: negative count! [78136.551063] Modules linked in: sch_htb act_police cls_u32 sch_ingress vhost_net tun macvtap macvlan netconsole ipt_REJECT dlm sctp iptable_filter ip_tables x_tables iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd auth_rpcgss oid_registry bonding ext2 8021q garp fuse mperf coretemp kvm_intel kvm crc32_pclmul ghash_clmulni_intel microcode i2c_i801 button dm_mod raid1 md_mod usbhid usb_storage ohci_hcd sg sd_mod ehci_pci ahci ehci_hcd igb libahci i2c_algo_bit isci usbcore i2c_core usb_common libsas ptp ixgbe(O) scsi_transport_sas pps_core [78136.551080] CPU: 21 PID: 47183 Comm: kvm Tainted: GW O 3.10.32+68-ph #1 [78136.551081] Hardware name: Supermicro X9DRW-3LN4F+/X9DRW-3TF+/X9DRW-3LN4F+/X9DRW-3TF+, BIOS 3.00 07/05/2013 [78136.551081] 0009 882f4a669be8 81524606 882f4a669c28 [78136.551085] 8104853b 4a669c08 a045cc40 00fa [78136.551088] a045cc60 882f51460160 882f74ab8110 882f4a669c88 [78136.551091] Call Trace: [78136.551093] [81524606] dump_stack+0x19/0x1b [78136.551095] [8104853b] warn_slowpath_common+0x6b/0xa0 [78136.551098] [81048611] warn_slowpath_fmt+0x41/0x50 [78136.551100] [810e05f6] __static_key_slow_dec+0xb6/0xc0 [78136.551102] [810e0631] static_key_slow_dec_deferred+0x11/0x20 [78136.551110] [a043ff60] kvm_free_lapic+0x90/0xa0 [kvm] [78136.551116] [a0429ef3] kvm_arch_vcpu_uninit+0x23/0x90 [kvm] [78136.551122] [a0410a20] kvm_vcpu_uninit+0x20/0x40 [kvm] [78136.551125] [a021fc12] vmx_free_vcpu+0x52/0x70 [kvm_intel] [78136.551132] [a04295ef] kvm_arch_vcpu_free+0x4f/0x60 [kvm] [78136.551138] [a042a112] kvm_arch_destroy_vm+0xf2/0x1f0 [kvm] [78136.551141] [81071048] ? synchronize_srcu+0x18/0x20 [78136.551143] [8112677a] ? mmu_notifier_unregister+0xaa/0xe0 [78136.551149] [a041380e] kvm_put_kvm+0x10e/0x1b0 [kvm] [78136.551155] [a0413a33] kvm_vcpu_release+0x13/0x20 [kvm] [78136.551157] [811452d1] __fput+0xe1/0x230 [78136.551160] [81145429] fput+0x9/0x10 [78136.551162] [81068de5] task_work_run+0xb5/0xd0 [78136.551164] [8104da1c] do_exit+0x2ac/0xa30 [78136.551166] [8107a89b] ? wake_up_state+0xb/0x10 [78136.551169] [81059fad] ? signal_wake_up_state+0x1d/0x30 [78136.551171] [8105b1c3] ? zap_other_threads+0x83/0xa0 [78136.551173] [8104e21a] do_group_exit+0x3a/0xa0 [78136.551175] [8104e292] SyS_exit_group+0x12/0x20 [78136.551177] [81529fd2] system_call_fastpath+0x16/0x1b [78136.551178] ---[ end trace b9ebb6de9753ef4c ]--- Thanks! Stefan -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: 3.10.X kernel/jump_label kvm
Am 01.03.2014 15:27, schrieb Andrey Korolyov: On 02/28/2014 11:47 PM, Stefan Priebe wrote: Hello, i got this stack trace multiple times while using a vanilla 3.10.32 kernel and already sent it to the list in december but got no replies. Hi, What kind of workload the host system is experiencing at same time? Does this event correlate with high memory pressure? Running around 40 virtual machines. It had 240GB of 378GB free so i think no memory pressure. Stefan [78136.551061] WARNING: at kernel/jump_label.c:80 __static_key_slow_dec+0xb6/0xc0() [78136.551062] jump label: negative count! [78136.551063] Modules linked in: sch_htb act_police cls_u32 sch_ingress vhost_net tun macvtap macvlan netconsole ipt_REJECT dlm sctp iptable_filter ip_tables x_tables iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd auth_rpcgss oid_registry bonding ext2 8021q garp fuse mperf coretemp kvm_intel kvm crc32_pclmul ghash_clmulni_intel microcode i2c_i801 button dm_mod raid1 md_mod usbhid usb_storage ohci_hcd sg sd_mod ehci_pci ahci ehci_hcd igb libahci i2c_algo_bit isci usbcore i2c_core usb_common libsas ptp ixgbe(O) scsi_transport_sas pps_core [78136.551080] CPU: 21 PID: 47183 Comm: kvm Tainted: GW O 3.10.32+68-ph #1 [78136.551081] Hardware name: Supermicro X9DRW-3LN4F+/X9DRW-3TF+/X9DRW-3LN4F+/X9DRW-3TF+, BIOS 3.00 07/05/2013 [78136.551081] 0009 882f4a669be8 81524606 882f4a669c28 [78136.551085] 8104853b 4a669c08 a045cc40 00fa [78136.551088] a045cc60 882f51460160 882f74ab8110 882f4a669c88 [78136.551091] Call Trace: [78136.551093] [81524606] dump_stack+0x19/0x1b [78136.551095] [8104853b] warn_slowpath_common+0x6b/0xa0 [78136.551098] [81048611] warn_slowpath_fmt+0x41/0x50 [78136.551100] [810e05f6] __static_key_slow_dec+0xb6/0xc0 [78136.551102] [810e0631] static_key_slow_dec_deferred+0x11/0x20 [78136.551110] [a043ff60] kvm_free_lapic+0x90/0xa0 [kvm] [78136.551116] [a0429ef3] kvm_arch_vcpu_uninit+0x23/0x90 [kvm] [78136.551122] [a0410a20] kvm_vcpu_uninit+0x20/0x40 [kvm] [78136.551125] [a021fc12] vmx_free_vcpu+0x52/0x70 [kvm_intel] [78136.551132] [a04295ef] kvm_arch_vcpu_free+0x4f/0x60 [kvm] [78136.551138] [a042a112] kvm_arch_destroy_vm+0xf2/0x1f0 [kvm] [78136.551141] [81071048] ? synchronize_srcu+0x18/0x20 [78136.551143] [8112677a] ? mmu_notifier_unregister+0xaa/0xe0 [78136.551149] [a041380e] kvm_put_kvm+0x10e/0x1b0 [kvm] [78136.551155] [a0413a33] kvm_vcpu_release+0x13/0x20 [kvm] [78136.551157] [811452d1] __fput+0xe1/0x230 [78136.551160] [81145429] fput+0x9/0x10 [78136.551162] [81068de5] task_work_run+0xb5/0xd0 [78136.551164] [8104da1c] do_exit+0x2ac/0xa30 [78136.551166] [8107a89b] ? wake_up_state+0xb/0x10 [78136.551169] [81059fad] ? signal_wake_up_state+0x1d/0x30 [78136.551171] [8105b1c3] ? zap_other_threads+0x83/0xa0 [78136.551173] [8104e21a] do_group_exit+0x3a/0xa0 [78136.551175] [8104e292] SyS_exit_group+0x12/0x20 [78136.551177] [81529fd2] system_call_fastpath+0x16/0x1b [78136.551178] ---[ end trace b9ebb6de9753ef4c ]--- Thanks! Stefan -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
