From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 195309] New: qemu-system-x86_64: using __this_cpu_read() in
preemptible
Date: Mon, 10 Apr 2017 08:27:04 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=195309
Bug ID: 195309
Summary: qemu-system-x86_64: using __this_cpu_read() in
preemptible
Product: Virtualization
Version: unspecified
Kernel Version: 4.9.18-rt-rt14
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: kvm
Assignee: virtualization_kvm@kernel-bugs.osdl.org
Reporter: thiemel@centrum.cz
Regression: No
OS: Gentoo x86_64
Preemptive kernel with RealTime patch:
CONFIG_PREEMPT_RCU=y
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PREEMPT=y
CONFIG_PREEMPT_RT_BASE=y
CONFIG_HAVE_PREEMPT_LAZY=y
CONFIG_PREEMPT_LAZY=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT__LL is not set
# CONFIG_PREEMPT_RTB is not set
CONFIG_PREEMPT_RT_FULL=y
CONFIG_PREEMPT_COUNT=y
CONFIG_DEBUG_PREEMPT=y
DMESG OUTPUTs:
[64005.914848] BUG: using __this_cpu_read() in preemptible [00000000 00000000]
code: qemu-system-x86/6915
[64005.914853] caller is __this_cpu_preempt_check+0x13/0x20
[64005.914856] CPU: 5 PID: 6915 Comm: qemu-system-x86 Not tainted
4.9.18-rt-rt14-xeon #4
[64005.914857] Hardware name: MSI MS-7759/Z77MA-G45 (MS-7759), BIOS V1.9
03/01/2013
[64005.914861] ffffc9001de3fb00 ffffffff813deaf4 0000000000000005
ffffffff819e4bd5
[64005.914864] ffffc9001de3fb30 ffffffff814028a6 ffffc90000001b03
ffff8807ee93c000
[64005.914866] ffff8807ee93f438 ffffc9001de3fc50 ffffc9001de3fb40
ffffffff814028e3
[64005.914867] Call Trace:
[64005.914873] [] dump_stack+0x4f/0x6b
[64005.914876] [] check_preemption_disabled+0x116/0x120
[64005.914878] [] __this_cpu_preempt_check+0x13/0x20
[64005.914896] [] __get_kvmclock_ns+0x6a/0x100 [kvm]
[64005.914909] [] get_kvmclock_ns+0xd/0x20 [kvm]
[64005.914923] [] get_time_ref_counter+0x4a/0x70 [kvm]
[64005.914935] [] kvm_hv_get_msr_common+0x351/0x4b0 [kvm]
[64005.914948] [] kvm_get_msr_common+0x44f/0x650 [kvm]
[64005.914954] [] vmx_get_msr+0xa6/0x480 [kvm_intel]
[64005.914958] [] handle_rdmsr+0x32/0x90 [kvm_intel]
[64005.914962] [] vmx_handle_exit+0xe3/0x12d0 [kvm_intel]
[64005.914976] [] kvm_arch_vcpu_ioctl_run+0xc8e/0x18b0 [kvm]
[64005.914987] [] ? kvm_arch_vcpu_ioctl_run+0xc2b/0x18b0
[kvm]
[64005.914995] [] ? kvm_arch_vcpu_load+0x52/0x220 [kvm]
[64005.915002] [] kvm_vcpu_ioctl+0x337/0x590 [kvm]
[64005.915005] [] do_vfs_ioctl+0x9a/0x5f0
[64005.915007] [] ? __fget+0xc4/0x100
[64005.915009] [] ? expand_files+0x210/0x210
[64005.915010] [] SyS_ioctl+0x3c/0x70
[64005.915012] [] do_syscall_64+0x75/0x190
[64005.915015] [] entry_SYSCALL64_slow_path+0x25/0x25
[291105.373894] BUG: using __this_cpu_read() in preemptible [00000000 00000000]
code: qemu-system-x86/6915
[291105.373899] caller is __this_cpu_preempt_check+0x13/0x20
[291105.373902] CPU: 2 PID: 6915 Comm: qemu-system-x86 Not tainted
4.9.18-rt-rt14-xeon #4
[291105.373902] Hardware name: MSI MS-7759/Z77MA-G45 (MS-7759), BIOS V1.9
03/01/2013
[291105.373907] ffffc9001de3fb00 ffffffff813deaf4 0000000000000002
ffffffff819e4bd5
[291105.373910] ffffc9001de3fb30 ffffffff814028a6 ffffc90000001b03
ffff8807ee93c000
[291105.373912] ffff8807ee93f438 ffffc9001de3fc50 ffffc9001de3fb40
ffffffff814028e3
[291105.373913] Call Trace:
[291105.373918] [] dump_stack+0x4f/0x6b
[291105.373920] [] check_preemption_disabled+0x116/0x120
[291105.373922] [] __this_cpu_preempt_check+0x13/0x20
[291105.373935] [] __get_kvmclock_ns+0x6a/0x100 [kvm]
[291105.373944] [] get_kvmclock_ns+0xd/0x20 [kvm]
[291105.373953] [] get_time_ref_counter+0x4a/0x70 [kvm]
[291105.373961] [] kvm_hv_get_msr_common+0x351/0x4b0 [kvm]
[291105.373971] [] kvm_get_msr_common+0x44f/0x650 [kvm]
[291105.373977] [] vmx_get_msr+0xa6/0x480 [kvm_intel]
[291105.373981] [] handle_rdmsr+0x32/0x90 [kvm_intel]
[291105.373986] [] vmx_handle_exit+0xe3/0x12d0 [kvm_intel]
[291105.373995] [] kvm_arch_vcpu_ioctl_run+0xc8e/0x18b0
[kvm]
[291105.374003] [] ? kvm_arch_vcpu_ioctl_run+0xc2b/0x18b0
[kvm]
[291105.374011] [] ? kvm_arch_vcpu_load+0x52/0x220 [kvm]
[291105.374018] [] kvm_vcpu_ioctl+0x337/0x590 [kvm]
[291105.374021] [] do_vfs_ioctl+0x9a/0x5f0
[291105.374023] [] ? __fget+0xc4/0x100
[291105.374025] [] ? expand_files+0x210/0x210
[291105.374026] [] SyS_ioctl+0x3c/0x70
[291105.374028] [] do_syscall_64+0x75/0x190
[291105.374031] [] entry_SYSCALL64_slow_path+0x25/0x25
[294382.416686] BUG: using __this_cpu_read() in preemptible [00000000 00000000]
code: qemu-system-x86/6891
[294382.416691] caller is __this_cpu_preempt_check+0x13/0x20
[294382.416693] CPU: 4 PID: 6891 Comm: qemu-system-x86 Not tainted
4.9.18-rt-rt14-xeon #4
[294382.416694] Hardware name: MSI MS-7759/Z77MA-G45 (MS-7759), BIOS V1.9
03/01/2013
[294382.416696] ffffc90013e43b00 ffffffff813deaf4 0000000000000004
ffffffff819e4bd5
[294382.416698] ffffc90013e43b30 ffffffff814028a6 ffffc90000001aeb
ffff8807e6594000
[294382.416699] ffff8807e6597438 ffffc90013e43c50 ffffc90013e43b40
ffffffff814028e3
[294382.416700] Call Trace:
[294382.416705] [] dump_stack+0x4f/0x6b
[294382.416708] [] check_preemption_disabled+0x116/0x120
[294382.416709] [] __this_cpu_preempt_check+0x13/0x20
[294382.416723] [] __get_kvmclock_ns+0x6a/0x100 [kvm]
[294382.416733] [] get_kvmclock_ns+0xd/0x20 [kvm]
[294382.416742] [] get_time_ref_counter+0x4a/0x70 [kvm]
[294382.416750] [] kvm_hv_get_msr_common+0x351/0x4b0 [kvm]
[294382.416758] [] kvm_get_msr_common+0x44f/0x650 [kvm]
[294382.416762] [] vmx_get_msr+0xa6/0x480 [kvm_intel]
[294382.416765] [] handle_rdmsr+0x32/0x90 [kvm_intel]
[294382.416768] [] vmx_handle_exit+0xe3/0x12d0 [kvm_intel]
[294382.416777] [] kvm_arch_vcpu_ioctl_run+0xc8e/0x18b0
[kvm]
[294382.416786] [] ? kvm_arch_vcpu_ioctl_run+0xc2b/0x18b0
[kvm]
[294382.416794] [] ? kvm_arch_vcpu_load+0x52/0x220 [kvm]
[294382.416801] [] kvm_vcpu_ioctl+0x337/0x590 [kvm]
[294382.416803] [] do_vfs_ioctl+0x9a/0x5f0
[294382.416805] [] ? __fget+0xc4/0x100
[294382.416807] [] ? expand_files+0x210/0x210
[294382.416808] [] SyS_ioctl+0x3c/0x70
[294382.416810] [] do_syscall_64+0x75/0x190
[294382.416813] [] entry_SYSCALL64_slow_path+0x25/0x25
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