* net-next boot error: WARNING: workqueue cpumask: online intersect > possible intersect (2)
@ 2019-07-23 6:38 syzbot
2019-07-24 17:35 ` Eric Biggers
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2019-07-23 6:38 UTC (permalink / raw)
To: linux-kernel, netdev, syzkaller-bugs
Hello,
syzbot found the following crash on:
HEAD commit: 7b5cf701 Merge branch 'sched-urgent-for-linus' of git://gi..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=145c4d34600000
kernel config: https://syzkaller.appspot.com/x/.config?x=9aec8cb13b5f7389
dashboard link: https://syzkaller.appspot.com/bug?extid=3055cb4fd9eb553bd76c
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+3055cb4fd9eb553bd76c@syzkaller.appspotmail.com
smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f,
stepping: 0x0)
Performance Events: unsupported p6 CPU model 63 no PMU driver, software
events only.
rcu: Hierarchical SRCU implementation.
NMI watchdog: Perf NMI watchdog permanently disabled
smp: Bringing up secondary CPUs ...
x86: Booting SMP configuration:
.... node #0, CPUs: #1
MDS CPU bug present and SMT on, data leak possible. See
https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for
more details.
smp: Brought up 2 nodes, 2 CPUs
smpboot: Max logical packages: 1
smpboot: Total of 2 processors activated (9200.00 BogoMIPS)
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns:
19112604462750000 ns
futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc)
xor: automatically using best checksumming function avx
PM: RTC time: 20:26:57, date: 2019-07-22
NET: Registered protocol family 16
audit: initializing netlink subsys (disabled)
cpuidle: using governor menu
ACPI: bus type PCI registered
dca service started, version 1.12.1
PCI: Using configuration type 1 for base access
WARNING: workqueue cpumask: online intersect > possible intersect
HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
cryptd: max_cpu_qlen set to 1000
raid6: avx2x4 gen() 10942 MB/s
raid6: avx2x4 xor() 6383 MB/s
raid6: avx2x2 gen() 6482 MB/s
raid6: avx2x2 xor() 3541 MB/s
raid6: avx2x1 gen() 3326 MB/s
raid6: avx2x1 xor() 1978 MB/s
raid6: sse2x4 gen() 5350 MB/s
raid6: sse2x4 xor() 3129 MB/s
raid6: sse2x2 gen() 3754 MB/s
raid6: sse2x2 xor() 1760 MB/s
raid6: sse2x1 gen() 1702 MB/s
raid6: sse2x1 xor() 988 MB/s
raid6: using algorithm avx2x4 gen() 10942 MB/s
raid6: .... xor() 6383 MB/s, rmw enabled
raid6: using avx2x2 recovery algorithm
ACPI: Added _OSI(Module Device)
ACPI: Added _OSI(Processor Device)
ACPI: Added _OSI(3.0 _SCP Extensions)
ACPI: Added _OSI(Processor Aggregator Device)
ACPI: Added _OSI(Linux-Dell-Video)
ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
ACPI: 2 ACPI AML tables successfully acquired and loaded
ACPI: Interpreter enabled
ACPI: (supports S0 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and
report a bug
ACPI: Enabled 16 GPEs in block 00 to 0F
ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3]
acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended
PCI configuration space under this bridge.
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window]
pci_bus 0000:00: root bus resource [bus 00-ff]
pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
pci 0000:00:01.0: [8086:7110] type 00 class 0x060100
pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000
pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f]
pci 0000:00:03.0: reg 0x14: [mem 0xfebfe000-0xfebfe07f]
pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000
pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f]
pci 0000:00:04.0: reg 0x14: [mem 0xfebff000-0xfebff07f]
ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
vgaarb: loaded
SCSI subsystem initialized
ACPI: bus type USB registered
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
mc: Linux media interface: v0.10
videodev: Linux video capture interface: v2.00
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
<giometti@linux.it>
PTP clock support registered
EDAC MC: Ver: 3.0.0
Advanced Linux Sound Architecture Driver Initialized.
PCI: Using ACPI for IRQ routing
Bluetooth: Core ver 2.22
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
NET: Registered protocol family 8
NET: Registered protocol family 20
NetLabel: Initializing
NetLabel: domain hash size = 128
NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
NetLabel: unlabeled traffic allowed by default
nfc: nfc_init: NFC Core ver 0.1
NET: Registered protocol family 39
clocksource: Switched to clocksource kvm-clock
VFS: Disk quotas dquot_6.6.0
VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
FS-Cache: Loaded
*** VALIDATE hugetlbfs ***
CacheFiles: Loaded
TOMOYO: 2.6.0
Mandatory Access Control activated.
AppArmor: AppArmor Filesystem Enabled
pnp: PnP ACPI init
pnp: PnP ACPI: found 7 devices
thermal_sys: Registered thermal governor 'step_wise'
thermal_sys: Registered thermal governor 'user_space'
clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns:
2085701024 ns
pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window]
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes,
vmalloc)
TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc)
TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, vmalloc)
TCP: Hash tables configured (established 65536 bind 65536)
UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc)
UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
NET: Registered protocol family 44
pci 0000:00:00.0: Limiting direct PCI/PCI transfers
PCI: CLS 0 bytes, default 64
PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
software IO TLB: mapped [mem 0xaa800000-0xae800000] (64MB)
RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl
timer
kvm: already loaded the other module
clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2,
max_idle_ns: 440795277976 ns
clocksource: Switched to clocksource tsc
mce: Machine check injector initialized
check: Scanning for low memory corruption every 60 seconds
Initialise system trusted keyrings
workingset: timestamp_bits=40 max_order=21 bucket_order=0
zbud: loaded
DLM installed
squashfs: version 4.0 (2009/01/31) Phillip Lougher
FS-Cache: Netfs 'nfs' registered for caching
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
nfs4filelayout_init: NFSv4 File Layout Driver Registering...
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
ntfs: driver 2.1.32 [Flags: R/W].
fuse: init (API version 7.31)
JFS: nTxBlock = 8192, nTxLock = 65536
SGI XFS with ACLs, security attributes, realtime, no debug enabled
9p: Installing v9fs 9p2000 file system support
FS-Cache: Netfs '9p' registered for caching
gfs2: GFS2 installed
FS-Cache: Netfs 'ceph' registered for caching
ceph: loaded (mds proto 32)
NET: Registered protocol family 38
async_tx: api initialized (async)
Key type asymmetric registered
Asymmetric key parser 'x509' registered
Asymmetric key parser 'pkcs8' registered
Key type pkcs7_test registered
Asymmetric key parser 'tpm_parser' registered
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
io scheduler mq-deadline registered
io scheduler kyber registered
io scheduler bfq registered
input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
ACPI: Power Button [PWRF]
input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1
ACPI: Sleep Button [SLPF]
ioatdma: Intel(R) QuickData Technology Driver 5.00
PCI Interrupt Link [LNKC] enabled at IRQ 11
virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver
PCI Interrupt Link [LNKD] enabled at IRQ 10
virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver
HDLC line discipline maxframe=4096
N_HDLC line discipline registered.
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A
00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A
Non-volatile memory driver v1.3
Linux agpgart interface v0.103
[drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[drm] Driver supports precise vblank timestamp query.
[drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
usbcore: registered new interface driver udl
brd: module loaded
loop: module loaded
zram: Added device: zram0
null: module loaded
nfcsim 0.2 initialized
Loading iSCSI transport class v2.0-870.
scsi host0: Virtio SCSI HBA
st: Version 20160209, fixed bufsize 32768, s/g segs 256
kobject: 'st' (000000004c8d7e58): fill_kobj_path: path
= '/bus/scsi/drivers/st'
kobject: 'scsi_disk' (00000000bdfbce9c): kobject_add_internal:
parent: 'class', set: 'class'
kobject: 'scsi_disk' (00000000bdfbce9c): kobject_uevent_env
kobject: 'scsi_disk' (00000000bdfbce9c): fill_kobj_path: path
= '/class/scsi_disk'
kobject: 'sd' (0000000055985a2d): kobject_add_internal: parent: 'drivers',
set: 'drivers'
kobject: 'sd' (0000000055985a2d): kobject_uevent_env
kobject: 'sd' (0000000055985a2d): fill_kobj_path: path
= '/bus/scsi/drivers/sd'
kobject: 'sr' (000000004054170b): kobject_add_internal: parent: 'drivers',
set: 'drivers'
kobject: 'sr' (000000004054170b): kobject_uevent_env
kobject: 'sr' (000000004054170b): fill_kobj_path: path
= '/bus/scsi/drivers/sr'
kobject: 'scsi_generic' (0000000098f3b229): kobject_add_internal:
parent: 'class', set: 'class'
kobject: 'scsi_generic' (0000000098f3b229): kobject_uevent_env
kobject: 'scsi_generic' (0000000098f3b229): fill_kobj_path: path
= '/class/scsi_generic'
kobject: 'nvme-wq' (00000000270c2331): kobject_add_internal:
parent: 'workqueue', set: 'devices'
kobject: 'nvme-wq' (00000000270c2331): kobject_uevent_env
kobject: 'nvme-wq' (00000000270c2331): kobject_uevent_env: uevent_suppress
caused the event to drop!
kobject: 'nvme-wq' (00000000270c2331): kobject_uevent_env
kobject: 'nvme-wq' (00000000270c2331): fill_kobj_path: path
= '/devices/virtual/workqueue/nvme-wq'
kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_add_internal:
parent: 'workqueue', set: 'devices'
kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_uevent_env
kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_uevent_env:
uevent_suppress caused the event to drop!
kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_uevent_env
kobject: 'nvme-reset-wq' (000000003e1ba3d5): fill_kobj_path: path
= '/devices/virtual/workqueue/nvme-reset-wq'
kobject: 'nvme-delete-wq' (000000005497d244): kobject_add_internal:
parent: 'workqueue', set: 'devices'
kobject: 'nvme-delete-wq' (000000005497d244): kobject_uevent_env
kobject: 'nvme-delete-wq' (000000005497d244): kobject_uevent_env:
uevent_suppress caused the event to drop!
kobject: 'nvme-delete-wq' (000000005497d244): kobject_uevent_env
kobject: 'nvme-delete-wq' (000000005497d244): fill_kobj_path: path
= '/devices/virtual/workqueue/nvme-delete-wq'
kobject: 'nvme' (000000008e6a29d7): kobject_add_internal: parent: 'class',
set: 'class'
kobject: 'nvme' (000000008e6a29d7): kobject_uevent_env
kobject: 'nvme' (000000008e6a29d7): fill_kobj_path: path = '/class/nvme'
kobject: 'nvme-subsystem' (000000001563dbee): kobject_add_internal:
parent: 'class', set: 'class'
kobject: 'nvme-subsystem' (000000001563dbee): kobject_uevent_env
kobject: 'nvme-subsystem' (000000001563dbee): fill_kobj_path: path
= '/class/nvme-subsystem'
kobject: 'nvme' (00000000c52b7e0e): kobject_add_internal:
parent: 'drivers', set: 'drivers'
kobject: 'drivers' (00000000f6d3710d): kobject_add_internal:
parent: 'nvme', set: '<NULL>'
kobject: 'nvme' (00000000c52b7e0e): kobject_uevent_env
kobject: 'nvme' (00000000c52b7e0e): fill_kobj_path: path
= '/bus/pci/drivers/nvme'
kobject: 'ahci' (00000000a29e777d): kobject_add_internal:
parent: 'drivers', set: 'drivers'
kobject: 'drivers' (000000003ed63ce6): kobject_add_internal:
parent: 'ahci', set: '<NULL>'
kobject: 'ahci' (00000000a29e777d): kobject_uevent_env
kobject: 'ahci' (00000000a29e777d): fill_kobj_path: path
= '/bus/pci/drivers/ahci'
kobject: 'ata_piix' (0000000087185d26): kobject_add_internal:
parent: 'drivers', set: 'drivers'
kobject: 'drivers' (000000004a065e79): kobject_add_internal:
parent: 'ata_piix', set: '<NULL>'
kobject: 'ata_piix' (0000000087185d26): kobject_uevent_env
kobject: 'ata_piix' (0000000087185d26): fill_kobj_path: path
= '/bus/pci/drivers/ata_piix'
kobject: 'pata_amd' (00000000519c7b49): kobject_add_internal:
parent: 'drivers', set: 'drivers'
kobject: 'drivers' (00000000cb24f8fd): kobject_add_internal:
parent: 'pata_amd', set: '<NULL>'
kobject: 'pata_amd' (00000000519c7b49): kobject_uevent_env
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: net-next boot error: WARNING: workqueue cpumask: online intersect > possible intersect (2)
2019-07-23 6:38 net-next boot error: WARNING: workqueue cpumask: online intersect > possible intersect (2) syzbot
@ 2019-07-24 17:35 ` Eric Biggers
0 siblings, 0 replies; 2+ messages in thread
From: Eric Biggers @ 2019-07-24 17:35 UTC (permalink / raw)
To: syzbot; +Cc: linux-kernel, netdev, syzkaller-bugs
On Mon, Jul 22, 2019 at 11:38:06PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 7b5cf701 Merge branch 'sched-urgent-for-linus' of git://gi..
> git tree: net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=145c4d34600000
> kernel config: https://syzkaller.appspot.com/x/.config?x=9aec8cb13b5f7389
> dashboard link: https://syzkaller.appspot.com/bug?extid=3055cb4fd9eb553bd76c
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
>
> Unfortunately, I don't have any reproducer for this crash yet.
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+3055cb4fd9eb553bd76c@syzkaller.appspotmail.com
>
> smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f,
> stepping: 0x0)
> Performance Events: unsupported p6 CPU model 63 no PMU driver, software
> events only.
> rcu: Hierarchical SRCU implementation.
> NMI watchdog: Perf NMI watchdog permanently disabled
> smp: Bringing up secondary CPUs ...
> x86: Booting SMP configuration:
> .... node #0, CPUs: #1
> MDS CPU bug present and SMT on, data leak possible. See
> https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more
> details.
> smp: Brought up 2 nodes, 2 CPUs
> smpboot: Max logical packages: 1
> smpboot: Total of 2 processors activated (9200.00 BogoMIPS)
> devtmpfs: initialized
> clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns:
> 19112604462750000 ns
> futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc)
> xor: automatically using best checksumming function avx
> PM: RTC time: 20:26:57, date: 2019-07-22
> NET: Registered protocol family 16
> audit: initializing netlink subsys (disabled)
> cpuidle: using governor menu
> ACPI: bus type PCI registered
> dca service started, version 1.12.1
> PCI: Using configuration type 1 for base access
> WARNING: workqueue cpumask: online intersect > possible intersect
> HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
> HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
> cryptd: max_cpu_qlen set to 1000
> raid6: avx2x4 gen() 10942 MB/s
> raid6: avx2x4 xor() 6383 MB/s
> raid6: avx2x2 gen() 6482 MB/s
> raid6: avx2x2 xor() 3541 MB/s
> raid6: avx2x1 gen() 3326 MB/s
> raid6: avx2x1 xor() 1978 MB/s
> raid6: sse2x4 gen() 5350 MB/s
> raid6: sse2x4 xor() 3129 MB/s
> raid6: sse2x2 gen() 3754 MB/s
> raid6: sse2x2 xor() 1760 MB/s
> raid6: sse2x1 gen() 1702 MB/s
> raid6: sse2x1 xor() 988 MB/s
> raid6: using algorithm avx2x4 gen() 10942 MB/s
> raid6: .... xor() 6383 MB/s, rmw enabled
> raid6: using avx2x2 recovery algorithm
> ACPI: Added _OSI(Module Device)
> ACPI: Added _OSI(Processor Device)
> ACPI: Added _OSI(3.0 _SCP Extensions)
> ACPI: Added _OSI(Processor Aggregator Device)
> ACPI: Added _OSI(Linux-Dell-Video)
> ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
> ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
> ACPI: 2 ACPI AML tables successfully acquired and loaded
> ACPI: Interpreter enabled
> ACPI: (supports S0 S3 S4 S5)
> ACPI: Using IOAPIC for interrupt routing
> PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and
> report a bug
> ACPI: Enabled 16 GPEs in block 00 to 0F
> ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
> acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3]
> acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI
> configuration space under this bridge.
> PCI host bridge to bus 0000:00
> pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
> pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
> pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
> pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window]
> pci_bus 0000:00: root bus resource [bus 00-ff]
> pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
> pci 0000:00:01.0: [8086:7110] type 00 class 0x060100
> pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
> pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
> pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000
> pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f]
> pci 0000:00:03.0: reg 0x14: [mem 0xfebfe000-0xfebfe07f]
> pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000
> pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f]
> pci 0000:00:04.0: reg 0x14: [mem 0xfebff000-0xfebff07f]
> ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
> ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
> ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
> ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
> ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
> vgaarb: loaded
> SCSI subsystem initialized
> ACPI: bus type USB registered
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> mc: Linux media interface: v0.10
> videodev: Linux video capture interface: v2.00
> pps_core: LinuxPPS API ver. 1 registered
> pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
> <giometti@linux.it>
> PTP clock support registered
> EDAC MC: Ver: 3.0.0
> Advanced Linux Sound Architecture Driver Initialized.
> PCI: Using ACPI for IRQ routing
> Bluetooth: Core ver 2.22
> NET: Registered protocol family 31
> Bluetooth: HCI device and connection manager initialized
> Bluetooth: HCI socket layer initialized
> Bluetooth: L2CAP socket layer initialized
> Bluetooth: SCO socket layer initialized
> NET: Registered protocol family 8
> NET: Registered protocol family 20
> NetLabel: Initializing
> NetLabel: domain hash size = 128
> NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
> NetLabel: unlabeled traffic allowed by default
> nfc: nfc_init: NFC Core ver 0.1
> NET: Registered protocol family 39
> clocksource: Switched to clocksource kvm-clock
> VFS: Disk quotas dquot_6.6.0
> VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> FS-Cache: Loaded
> *** VALIDATE hugetlbfs ***
> CacheFiles: Loaded
> TOMOYO: 2.6.0
> Mandatory Access Control activated.
> AppArmor: AppArmor Filesystem Enabled
> pnp: PnP ACPI init
> pnp: PnP ACPI: found 7 devices
> thermal_sys: Registered thermal governor 'step_wise'
> thermal_sys: Registered thermal governor 'user_space'
> clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns:
> 2085701024 ns
> pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
> pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
> pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
> pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window]
> NET: Registered protocol family 2
> tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes,
> vmalloc)
> TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc)
> TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, vmalloc)
> TCP: Hash tables configured (established 65536 bind 65536)
> UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc)
> UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc)
> NET: Registered protocol family 1
> RPC: Registered named UNIX socket transport module.
> RPC: Registered udp transport module.
> RPC: Registered tcp transport module.
> RPC: Registered tcp NFSv4.1 backchannel transport module.
> NET: Registered protocol family 44
> pci 0000:00:00.0: Limiting direct PCI/PCI transfers
> PCI: CLS 0 bytes, default 64
> PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
> software IO TLB: mapped [mem 0xaa800000-0xae800000] (64MB)
> RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl
> timer
> kvm: already loaded the other module
> clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2,
> max_idle_ns: 440795277976 ns
> clocksource: Switched to clocksource tsc
> mce: Machine check injector initialized
> check: Scanning for low memory corruption every 60 seconds
> Initialise system trusted keyrings
> workingset: timestamp_bits=40 max_order=21 bucket_order=0
> zbud: loaded
> DLM installed
> squashfs: version 4.0 (2009/01/31) Phillip Lougher
> FS-Cache: Netfs 'nfs' registered for caching
> NFS: Registering the id_resolver key type
> Key type id_resolver registered
> Key type id_legacy registered
> nfs4filelayout_init: NFSv4 File Layout Driver Registering...
> Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> ntfs: driver 2.1.32 [Flags: R/W].
> fuse: init (API version 7.31)
> JFS: nTxBlock = 8192, nTxLock = 65536
> SGI XFS with ACLs, security attributes, realtime, no debug enabled
> 9p: Installing v9fs 9p2000 file system support
> FS-Cache: Netfs '9p' registered for caching
> gfs2: GFS2 installed
> FS-Cache: Netfs 'ceph' registered for caching
> ceph: loaded (mds proto 32)
> NET: Registered protocol family 38
> async_tx: api initialized (async)
> Key type asymmetric registered
> Asymmetric key parser 'x509' registered
> Asymmetric key parser 'pkcs8' registered
> Key type pkcs7_test registered
> Asymmetric key parser 'tpm_parser' registered
> Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
> io scheduler mq-deadline registered
> io scheduler kyber registered
> io scheduler bfq registered
> input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
> ACPI: Power Button [PWRF]
> input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1
> ACPI: Sleep Button [SLPF]
> ioatdma: Intel(R) QuickData Technology Driver 5.00
> PCI Interrupt Link [LNKC] enabled at IRQ 11
> virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver
> PCI Interrupt Link [LNKD] enabled at IRQ 10
> virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver
> HDLC line discipline maxframe=4096
> N_HDLC line discipline registered.
> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
> 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
> 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A
> 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A
> Non-volatile memory driver v1.3
> Linux agpgart interface v0.103
> [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
> [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [drm] Driver supports precise vblank timestamp query.
> [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
> usbcore: registered new interface driver udl
> brd: module loaded
> loop: module loaded
> zram: Added device: zram0
> null: module loaded
> nfcsim 0.2 initialized
> Loading iSCSI transport class v2.0-870.
> scsi host0: Virtio SCSI HBA
> st: Version 20160209, fixed bufsize 32768, s/g segs 256
> kobject: 'st' (000000004c8d7e58): fill_kobj_path: path =
> '/bus/scsi/drivers/st'
> kobject: 'scsi_disk' (00000000bdfbce9c): kobject_add_internal: parent:
> 'class', set: 'class'
> kobject: 'scsi_disk' (00000000bdfbce9c): kobject_uevent_env
> kobject: 'scsi_disk' (00000000bdfbce9c): fill_kobj_path: path =
> '/class/scsi_disk'
> kobject: 'sd' (0000000055985a2d): kobject_add_internal: parent: 'drivers',
> set: 'drivers'
> kobject: 'sd' (0000000055985a2d): kobject_uevent_env
> kobject: 'sd' (0000000055985a2d): fill_kobj_path: path =
> '/bus/scsi/drivers/sd'
> kobject: 'sr' (000000004054170b): kobject_add_internal: parent: 'drivers',
> set: 'drivers'
> kobject: 'sr' (000000004054170b): kobject_uevent_env
> kobject: 'sr' (000000004054170b): fill_kobj_path: path =
> '/bus/scsi/drivers/sr'
> kobject: 'scsi_generic' (0000000098f3b229): kobject_add_internal: parent:
> 'class', set: 'class'
> kobject: 'scsi_generic' (0000000098f3b229): kobject_uevent_env
> kobject: 'scsi_generic' (0000000098f3b229): fill_kobj_path: path =
> '/class/scsi_generic'
> kobject: 'nvme-wq' (00000000270c2331): kobject_add_internal: parent:
> 'workqueue', set: 'devices'
> kobject: 'nvme-wq' (00000000270c2331): kobject_uevent_env
> kobject: 'nvme-wq' (00000000270c2331): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'nvme-wq' (00000000270c2331): kobject_uevent_env
> kobject: 'nvme-wq' (00000000270c2331): fill_kobj_path: path =
> '/devices/virtual/workqueue/nvme-wq'
> kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_add_internal: parent:
> 'workqueue', set: 'devices'
> kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_uevent_env
> kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'nvme-reset-wq' (000000003e1ba3d5): kobject_uevent_env
> kobject: 'nvme-reset-wq' (000000003e1ba3d5): fill_kobj_path: path =
> '/devices/virtual/workqueue/nvme-reset-wq'
> kobject: 'nvme-delete-wq' (000000005497d244): kobject_add_internal: parent:
> 'workqueue', set: 'devices'
> kobject: 'nvme-delete-wq' (000000005497d244): kobject_uevent_env
> kobject: 'nvme-delete-wq' (000000005497d244): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'nvme-delete-wq' (000000005497d244): kobject_uevent_env
> kobject: 'nvme-delete-wq' (000000005497d244): fill_kobj_path: path =
> '/devices/virtual/workqueue/nvme-delete-wq'
> kobject: 'nvme' (000000008e6a29d7): kobject_add_internal: parent: 'class',
> set: 'class'
> kobject: 'nvme' (000000008e6a29d7): kobject_uevent_env
> kobject: 'nvme' (000000008e6a29d7): fill_kobj_path: path = '/class/nvme'
> kobject: 'nvme-subsystem' (000000001563dbee): kobject_add_internal: parent:
> 'class', set: 'class'
> kobject: 'nvme-subsystem' (000000001563dbee): kobject_uevent_env
> kobject: 'nvme-subsystem' (000000001563dbee): fill_kobj_path: path =
> '/class/nvme-subsystem'
> kobject: 'nvme' (00000000c52b7e0e): kobject_add_internal: parent: 'drivers',
> set: 'drivers'
> kobject: 'drivers' (00000000f6d3710d): kobject_add_internal: parent: 'nvme',
> set: '<NULL>'
> kobject: 'nvme' (00000000c52b7e0e): kobject_uevent_env
> kobject: 'nvme' (00000000c52b7e0e): fill_kobj_path: path =
> '/bus/pci/drivers/nvme'
> kobject: 'ahci' (00000000a29e777d): kobject_add_internal: parent: 'drivers',
> set: 'drivers'
> kobject: 'drivers' (000000003ed63ce6): kobject_add_internal: parent: 'ahci',
> set: '<NULL>'
> kobject: 'ahci' (00000000a29e777d): kobject_uevent_env
> kobject: 'ahci' (00000000a29e777d): fill_kobj_path: path =
> '/bus/pci/drivers/ahci'
> kobject: 'ata_piix' (0000000087185d26): kobject_add_internal: parent:
> 'drivers', set: 'drivers'
> kobject: 'drivers' (000000004a065e79): kobject_add_internal: parent:
> 'ata_piix', set: '<NULL>'
> kobject: 'ata_piix' (0000000087185d26): kobject_uevent_env
> kobject: 'ata_piix' (0000000087185d26): fill_kobj_path: path =
> '/bus/pci/drivers/ata_piix'
> kobject: 'pata_amd' (00000000519c7b49): kobject_add_internal: parent:
> 'drivers', set: 'drivers'
> kobject: 'drivers' (00000000cb24f8fd): kobject_add_internal: parent:
> 'pata_amd', set: '<NULL>'
> kobject: 'pata_amd' (00000000519c7b49): kobject_uevent_env
>
>
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>
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#syz dup: linux-next boot error: WARNING: workqueue cpumask: online intersect > possible intersect
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2019-07-23 6:38 net-next boot error: WARNING: workqueue cpumask: online intersect > possible intersect (2) syzbot
2019-07-24 17:35 ` Eric Biggers
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