Package: src:linux
Version: 4.9.30-2+deb9u2
Followup-For: Bug #851577
Dear Maintainer,
I hit same bug during hotpug cpu in a debian VM, kernel panic with NULL
pointer deref in rapl_cpu_online+0x5d.
apply commit dd86e373e (perf/x86/intel/rapl: Make package handling
robust) fixes the bug.
I've push the fix into 4.9.46, so debian will include the fix when
rebase to 4.9.46+
Jack Wang
Linux Kernel Developer
ProfitBricks GmbH
-- Package-specific info:
** Version:
Linux version 4.9.0-3-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0
20170516 (Debian 6.3.0-18) ) #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26)
** Command line:
BOOT_IMAGE=/boot/vmlinuz-4.9.0-3-amd64
root=UUID=065baf81-db99-4f78-a190-92614944c2e2 ro consoleblank=0 net.ifnames=0
quiet crashkernel=384M-:128M
** Not tainted
** Kernel log:
[ 270.876510] CPU10 has been hot-added
[ 270.891832] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 270.887997] kvm-clock: cpu 10, msr 1:3fff0281, secondary cpu clock
[ 270.990904] TSC synchronization [CPU#4 -> CPU#10]:
[ 270.990906] Measured 713133966959 cycles TSC warp between CPUs, turning off
TSC clock.
[ 270.990910] tsc: Marking TSC unstable due to check_tsc_sync_source failed
[ 270.990978] BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
[ 270.991503] IP: [<ffffffffc050f6dd>] rapl_cpu_online+0x5d/0x69
[intel_rapl_perf]
[ 270.992036] PGD 0
[ 270.992047]
[ 270.992366] Oops: 0002 [#1] SMP
[ 270.992782] Modules linked in: qxl ttm drm_kms_helper drm kvm_intel kvm
irqbypass crct10dif_pclmul crc32_pclmul hid_generic joydev ghash_clmulni_intel
serio_raw pcspkr intel_rapl_perf ppdev evdev parport_pc parport usbhid hid
acpi_cpufreq button ip_tables x_tables autofs4 ext4 crc16 jbd2 crc32c_generic
fscrypto ecb mbcache ata_generic virtio_net virtio_blk crc32c_intel aesni_intel
aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd ata_piix libata uhci_hcd
ehci_hcd psmouse virtio_pci virtio_ring usbcore virtio i2c_piix4 scsi_mod
usb_common floppy
[ 270.995252] CPU: 10 PID: 628 Comm: cpuhp/10 Not tainted 4.9.0-3-amd64 #1
Debian 4.9.30-2+deb9u2
[ 270.995650] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
?-20160812_114322-buildbot 04/01/2014
[ 270.996184] task: ffff9d5b73e6d140 task.stack: ffffb7f600f58000
[ 270.996538] RIP: 0010:[<ffffffffc050f6dd>] [<ffffffffc050f6dd>]
rapl_cpu_online+0x5d/0x69 [intel_rapl_perf]
[ 270.997131] RSP: 0000:ffffb7f600f5bde8 EFLAGS: 00010206
[ 270.997491] RAX: 0000000000000200 RBX: 000000000000000a RCX: 0000000000000000
[ 270.998091] RDX: 0000000000000200 RSI: 0000000000000200 RDI: 0000000000000200
[ 270.998459] RBP: 000000000000000a R08: fffffffffffffe00 R09: 0000000000000155
[ 270.999064] R10: 00000000000001b6 R11: 000000000047f4d8 R12: 0000000000000000
[ 270.999438] R13: ffffffffc050f680 R14: 0000000000000000 R15: 0000000000000000
[ 271.000043] FS: 0000000000000000(0000) GS:ffff9d5b7a880000(0000)
knlGS:0000000000000000
[ 271.000421] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 271.001052] CR2: 0000000000000008 CR3: 000000006fc07000 CR4: 00000000001406e0
[ 271.001431] Stack:
[ 271.002212] 000000000000000a 000000000000006a 0000000000000062
ffffffff95278008
[ 271.002927] ffff9d5b7a88dae0 ffffffff95e33ad0 000000017a618240
ffff9d5b73e6d140
[ 271.003546] ffff9d5b7a88dae0 000000000000000a 0000000000000062
0000000000000097
[ 271.004393] Call Trace:
[ 271.005200] [<ffffffff95278008>] ? cpuhp_invoke_callback+0x78/0x3a0
[ 271.006015] [<ffffffff9527bb0a>] ? do_group_exit+0x3a/0xa0
[ 271.006584] [<ffffffff95278470>] ? cpuhp_up_callbacks+0x30/0xb0
[ 271.007339] [<ffffffff95299d30>] ? sort_range+0x20/0x20
[ 271.008143] [<ffffffff95278674>] ? cpuhp_thread_fun+0xf4/0x100
[ 271.008937] [<ffffffff95299e2e>] ? smpboot_thread_fn+0xfe/0x150
[ 271.009742] [<ffffffff952965d7>] ? kthread+0xd7/0xf0
[ 271.010272] [<ffffffff95296500>] ? kthread_park+0x60/0x60
[ 271.011012] [<ffffffff958064f5>] ? ret_from_fork+0x25/0x30
[ 271.011496] Code: 24 00 00 4c 8b a4 d0 10 01 00 00 48 c7 c2 80 a0 00 00 48
01 ca e8 44 8b 01 d5 3b 05 92 40 a0 d5 7c 0e f0 48 0f ab 2d c3 23 00 00 <41> 89
6c 24 08 5b 31 c0 5d 41 5c c3 0f 1f 44 00 00 53 31 db 48
[ 271.012776] RIP [<ffffffffc050f6dd>] rapl_cpu_online+0x5d/0x69
[intel_rapl_perf]
[ 271.013301] RSP <ffffb7f600f5bde8>
[ 271.013794] CR2: 0000000000000008
** Model information
sys_vendor: QEMU
product_name: Standard PC (i440FX + PIIX, 1996)
product_version: pc-i440fx-2.7
chassis_vendor: QEMU
chassis_version: pc-i440fx-2.7
bios_vendor: SeaBIOS
bios_version: ?-20160812_114322-buildbot
** Loaded modules:
kvm_intel
kvm
irqbypass
crct10dif_pclmul
crc32_pclmul
ghash_clmulni_intel
ppdev
intel_rapl_perf
serio_raw
parport_pc
parport
qxl
ttm
drm_kms_helper
pcspkr
drm
acpi_cpufreq
button
evdev
joydev
hid_generic
usbhid
hid
ip_tables
x_tables
autofs4
ext4
crc16
jbd2
crc32c_generic
fscrypto
ecb
mbcache
ata_generic
virtio_net
virtio_blk
crc32c_intel
aesni_intel
aes_x86_64
glue_helper
lrw
gf128mul
ablk_helper
cryptd
ata_piix
psmouse
i2c_piix4
uhci_hcd
libata
ehci_hcd
virtio_pci
virtio_ring
usbcore
virtio
scsi_mod
usb_common
floppy
** 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-
Latency: 0
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 c0e0 [size=16]
Kernel driver in use: ata_piix
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]: Red Hat, Inc. QXL paravirtual graphic
card [1b36:0100] (rev 04) (prog-if 00 [VGA controller])
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-
Interrupt: pin A routed to IRQ 10
Region 0: Memory at f4000000 (32-bit, non-prefetchable) [size=64M]
Region 1: Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
Region 2: Memory at fc050000 (32-bit, non-prefetchable) [size=8K]
Region 3: I/O ports at c0a0 [size=32]
Expansion ROM at 000c0000 [disabled] [size=128K]
Kernel driver in use: qxl
Kernel modules: qxl
00:05.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device
[1af4:1001]
Subsystem: Red Hat, Inc Virtio block device [1af4:0002]
Physical Slot: 5
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 fc052000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fd000000 (64-bit, prefetchable) [size=8M]
Capabilities: [98] MSI-X: Enable+ Count=2 Masked-
Vector table: BAR=1 offset=00000000
PBA: BAR=1 offset=00000800
Capabilities: [84] Vendor Specific Information: VirtIO: <unknown>
BAR=0 offset=00000000 size=00000000
Capabilities: [70] Vendor Specific Information: VirtIO: Notify
BAR=4 offset=00003000 size=00400000 multiplier=00001000
Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg
BAR=4 offset=00002000 size=00001000
Capabilities: [50] Vendor Specific Information: VirtIO: ISR
BAR=4 offset=00001000 size=00001000
Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg
BAR=4 offset=00000000 size=00001000
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:06.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device
[1af4:1000]
Subsystem: Red Hat, Inc Virtio network device [1af4:0001]
Physical Slot: 6
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 c0c0 [size=32]
Region 1: Memory at fc053000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fd800000 (64-bit, prefetchable) [size=8M]
Expansion ROM at fc000000 [disabled] [size=256K]
Capabilities: [98] MSI-X: Enable+ Count=3 Masked-
Vector table: BAR=1 offset=00000000
PBA: BAR=1 offset=00000800
Capabilities: [84] Vendor Specific Information: VirtIO: <unknown>
BAR=0 offset=00000000 size=00000000
Capabilities: [70] Vendor Specific Information: VirtIO: Notify
BAR=4 offset=00003000 size=00400000 multiplier=00001000
Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg
BAR=4 offset=00002000 size=00001000
Capabilities: [50] Vendor Specific Information: VirtIO: ISR
BAR=4 offset=00001000 size=00001000
Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg
BAR=4 offset=00000000 size=00001000
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:07.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device
[1af4:1001]
Subsystem: Red Hat, Inc Virtio block device [1af4:0002]
Physical Slot: 7
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 11
Region 0: I/O ports at c040 [size=64]
Region 1: Memory at fc054000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fe000000 (64-bit, prefetchable) [size=8M]
Capabilities: [98] MSI-X: Enable+ Count=2 Masked-
Vector table: BAR=1 offset=00000000
PBA: BAR=1 offset=00000800
Capabilities: [84] Vendor Specific Information: VirtIO: <unknown>
BAR=0 offset=00000000 size=00000000
Capabilities: [70] Vendor Specific Information: VirtIO: Notify
BAR=4 offset=00003000 size=00400000 multiplier=00001000
Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg
BAR=4 offset=00002000 size=00001000
Capabilities: [50] Vendor Specific Information: VirtIO: ISR
BAR=4 offset=00001000 size=00001000
Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg
BAR=4 offset=00000000 size=00001000
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
** USB devices:
not available
-- System Information:
Debian Release: 9.1
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
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-4.9.0-3-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-4.9.0-3-amd64 recommends:
pn firmware-linux-free <none>
pn irqbalance <none>
Versions of packages linux-image-4.9.0-3-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-pc 2.02~beta3-5
pn linux-doc-4.9 <none>
Versions of packages linux-image-4.9.0-3-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
