Bug#877338: linux-image-4.11.0-0.bpo.1-rt-amd64: Warning loop in unpin_current_cpu
Package: src:linux
Version: 4.11.6-1~bpo9+1
Severity: important
RT kernel ran into warning loop, consuming most of the cpu time
running under KVM/QEMU 1 cpu
I dont know whats happening on the host because I'm just vps user
-- Package-specific info:
** Version:
Linux version 4.11.0-0.bpo.1-rt-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 6.3.0-18) ) #1 SMP PREEMPT RT Debian 4.11.6-1~bpo9+1 (2017-07-09)
** Command line:
BOOT_IMAGE=/vmlinuz-4.11.0-0.bpo.1-rt-amd64 root=/dev/mapper/main--vg-root ro net.ifnames=0 biosdevname=0 cpu0_hotplug=0
** Tainted: O (4096)
* Out-of-tree module has been loaded.
** Kernel log:
[10220.468495] CPU: 0 PID: 1992 Comm: systemd-journal Tainted: G W O 4.11.0-0.bpo.1-rt-amd64 #1 Debian 4.11.6-1~bpo9+1
[10220.468496] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
[10220.468496] Call Trace:
[10220.468497] ? dump_stack+0x5c/0x81
[10220.468499] ? __warn+0xd7/0xf0
[10220.468500] ? unpin_current_cpu+0x5c/0x70
[10220.468502] ? migrate_enable+0x1cf/0x310
[10220.468503] ? migrate_disable+0xbe/0x130
[10220.468505] ? ep_scan_ready_list.constprop.14+0x24f/0x270
[10220.468506] ? unpin_current_cpu+0x5c/0x70
[10220.468508] ? ep_poll+0x1c8/0x430
[10220.468509] ? devkmsg_read+0x1b4/0x450
[10220.468512] ? SyS_epoll_wait+0xc1/0xe0
[10220.468513] ? do_syscall_64+0x7c/0xf0
[10220.468515] ? entry_SYSCALL64_slow_path+0x25/0x25
[10220.468516] ---[ end trace 0000000000f41235 ]---
[10220.468529] ------------[ cut here ]------------
[10220.468531] WARNING: CPU: 0 PID: 1992 at /build/linux-hoqvEn/linux-4.11.6/debian/build/source_rt/kernel/cpu.c:341 unpin_current_cpu+0x5c/0x70
[10220.468531] Modules linked in: xt_nat ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_TCPMSS ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_tcpudp ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_filter wireguard(O) ip6_udp_tunnel udp_tunnel sit tunnel4 ip_tunnel hid_generic ppdev bochs_drm ttm drm_kms_helper usbhid pcspkr hid serio_raw drm shpchp virtio_balloon evdev parport button ip_tables x_tables autofs4 ext4 crc16 jbd2 crc32c_generic fscrypto ecb crypto_simd cryptd glue_helper aes_x86_64 mbcache dm_mod virtio_blk uhci_hcd ehci_hcd e1000 virtio_pci virtio_ring virtio usbcore usb_common i2c_piix4 [last unloaded: joydev]
[10220.468544] CPU: 0 PID: 1992 Comm: systemd-journal Tainted: G W O 4.11.0-0.bpo.1-rt-amd64 #1 Debian 4.11.6-1~bpo9+1
[10220.468545] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
[10220.468545] Call Trace:
[10220.468547] ? dump_stack+0x5c/0x81
[10220.468549] ? __warn+0xd7/0xf0
[10220.468550] ? unpin_current_cpu+0x5c/0x70
[10220.468552] ? migrate_enable+0x1cf/0x310
[10220.468553] ? migrate_disable+0xbe/0x130
[10220.468555] ? ep_poll+0x19f/0x430
[10220.468556] ? devkmsg_read+0x1b4/0x450
[10220.468559] ? SyS_epoll_wait+0xc1/0xe0
[10220.468560] ? do_syscall_64+0x7c/0xf0
[10220.468562] ? entry_SYSCALL64_slow_path+0x25/0x25
[10220.468563] ---[ end trace 0000000000f41236 ]---
** Model information
sys_vendor: QEMU
product_name: Standard PC (i440FX + PIIX, 1996)
product_version: pc-i440fx-2.9
chassis_vendor: QEMU
chassis_version: pc-i440fx-2.9
bios_vendor: SeaBIOS
bios_version: rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org
** Loaded modules:
xt_nat
ipt_REJECT
nf_reject_ipv4
ip6t_REJECT
nf_reject_ipv6
xt_TCPMSS
ipt_MASQUERADE
nf_nat_masquerade_ipv4
xt_tcpudp
ip6table_filter
ip6_tables
iptable_nat
nf_conntrack_ipv4
nf_defrag_ipv4
nf_nat_ipv4
nf_nat
nf_conntrack
libcrc32c
iptable_filter
wireguard(O)
ip6_udp_tunnel
udp_tunnel
sit
tunnel4
ip_tunnel
joydev
hid_generic
ppdev
usbhid
hid
evdev
bochs_drm
serio_raw
ttm
drm_kms_helper
pcspkr
shpchp
drm
virtio_balloon
parport_pc
parport
button
ip_tables
x_tables
autofs4
ext4
crc16
jbd2
crc32c_generic
fscrypto
ecb
crypto_simd
cryptd
glue_helper
aes_x86_64
mbcache
dm_mod
virtio_blk
uhci_hcd
ehci_hcd
e1000
virtio_pci
virtio_ring
virtio
i2c_piix4
usbcore
usb_common
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master])
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable)
Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable)
Region 4: I/O ports at c0c0 [size=16]
Kernel modules: ata_piix, ata_generic
00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI])
Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at c080 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03)
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 9
Kernel driver in use: piix4_smbus
Kernel modules: i2c_piix4
00:02.0 VGA compatible controller [0300]: Device [1234:1111] (rev 02) (prog-if 00 [VGA controller])
Subsystem: Red Hat, Inc Device [1af4:1100]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: Memory at fd000000 (32-bit, prefetchable) [size=16M]
Region 2: Memory at fea70000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at 000c0000 [disabled] [size=128K]
Kernel driver in use: bochs-drm
Kernel modules: bochs_drm
00:03.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon [1af4:1002]
Subsystem: Red Hat, Inc Virtio memory balloon [1af4:0005]
Physical Slot: 3
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at c0a0 [size=32]
Region 4: Memory at fe000000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:0a.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
Subsystem: Red Hat, Inc Virtio block device [1af4:0002]
Physical Slot: 10
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at c000 [size=64]
Region 1: Memory at fea71000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fe004000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:12.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 03)
Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100]
Physical Slot: 18
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 10
Region 0: Memory at fea40000 (32-bit, non-prefetchable) [size=128K]
Region 1: I/O ports at c040 [size=64]
Expansion ROM at fea00000 [disabled] [size=256K]
Kernel driver in use: e1000
Kernel modules: e1000
00:1e.0 PCI bridge [0604]: Red Hat, Inc. QEMU PCI-PCI bridge [1b36:0001] (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel modules: shpchp
00:1f.0 PCI bridge [0604]: Red Hat, Inc. QEMU PCI-PCI bridge [1b36:0001] (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel modules: shpchp
** USB devices:
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-- System Information:
Debian Release: 9.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.11.0-0.bpo.1-rt-amd64 (SMP w/1 CPU core; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages linux-image-4.11.0-0.bpo.1-rt-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.130
ii kmod 23-2
ii linux-base 4.5
Versions of packages linux-image-4.11.0-0.bpo.1-rt-amd64 recommends:
pn firmware-linux-free <none>
pn irqbalance <none>
Versions of packages linux-image-4.11.0-0.bpo.1-rt-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-pc 2.02~beta3-5
pn linux-doc-4.11 <none>
Versions of packages linux-image-4.11.0-0.bpo.1-rt-amd64 is related to:
pn firmware-amd-graphics <none>
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-cavium <none>
pn firmware-intel-sound <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
pn firmware-iwlwifi <none>
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
pn firmware-misc-nonfree <none>
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
pn firmware-realtek <none>
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
-- no debconf information
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