Messages in this thread | | | From | Dmitry Vyukov <> | Date | Fri, 8 Nov 2019 13:45:45 +0100 | Subject | Re: bpf boot error: WARNING: workqueue cpumask: online intersect > possible intersect (2) |
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On Sat, Jul 27, 2019 at 5:58 PM syzbot <syzbot+40f581848b1c5452b5ed@syzkaller.appspotmail.com> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: 5d01ab7b libbpf: fix erroneous multi-closing of BTF FD > git tree: bpf > console output: https://syzkaller.appspot.com/x/log.txt?x=110318b4600000 > kernel config: https://syzkaller.appspot.com/x/.config?x=6efd5962fd8c1d39 > dashboard link: https://syzkaller.appspot.com/bug?extid=40f581848b1c5452b5ed > 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+40f581848b1c5452b5ed@syzkaller.appspotmail.com
+workqueue maintainers
syzkaller will now ignore this warning as it happens on every boot and masks all other boot problems: https://github.com/google/syzkaller/commit/31b7aac4626757ae0862971db78aaa1338541227
#syz invalid
> 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: 01:04:45, date: 2019-07-27 > 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() 11248 MB/s > raid6: avx2x4 xor() 6695 MB/s > raid6: avx2x2 gen() 6687 MB/s > raid6: avx2x2 xor() 3654 MB/s > raid6: avx2x1 gen() 3443 MB/s > raid6: avx2x1 xor() 2027 MB/s > raid6: sse2x4 gen() 5758 MB/s > raid6: sse2x4 xor() 3294 MB/s > raid6: sse2x2 gen() 3924 MB/s > raid6: sse2x2 xor() 1858 MB/s > raid6: sse2x1 gen() 1745 MB/s > raid6: sse2x1 xor() 1019 MB/s > raid6: using algorithm avx2x4 gen() 11248 MB/s > raid6: .... xor() 6695 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: 'sd' (0000000040ee4d1b): kobject_add_internal: parent: 'drivers', > set: 'drivers' > kobject: 'sd' (0000000040ee4d1b): kobject_uevent_env > kobject: 'sd' (0000000040ee4d1b): fill_kobj_path: path > = '/bus/scsi/drivers/sd' > kobject: 'sr' (00000000e7d12427): kobject_add_internal: parent: 'drivers', > set: 'drivers' > kobject: 'sr' (00000000e7d12427): kobject_uevent_env > kobject: 'sr' (00000000e7d12427): fill_kobj_path: path > = '/bus/scsi/drivers/sr' > kobject: 'scsi_generic' (000000000443366b): kobject_add_internal: > parent: 'class', set: 'class' > kobject: 'scsi_generic' (000000000443366b): kobject_uevent_env > kobject: 'scsi_generic' (000000000443366b): fill_kobj_path: path > = '/class/scsi_generic' > kobject: 'nvme-wq' (0000000010fea8b9): kobject_add_internal: > parent: 'workqueue', set: 'devices' > kobject: 'nvme-wq' (0000000010fea8b9): kobject_uevent_env > kobject: 'nvme-wq' (0000000010fea8b9): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'nvme-wq' (0000000010fea8b9): kobject_uevent_env > kobject: 'nvme-wq' (0000000010fea8b9): fill_kobj_path: path > = '/devices/virtual/workqueue/nvme-wq' > kobject: 'nvme-reset-wq' (00000000a7f5b0c8): kobject_add_internal: > parent: 'workqueue', set: 'devices' > kobject: 'nvme-reset-wq' (00000000a7f5b0c8): kobject_uevent_env > kobject: 'nvme-reset-wq' (00000000a7f5b0c8): kobject_uevent_env: > uevent_suppress caused the event to drop! > kobject: 'nvme-reset-wq' (00000000a7f5b0c8): kobject_uevent_env > kobject: 'nvme-reset-wq' (00000000a7f5b0c8): fill_kobj_path: path > = '/devices/virtual/workqueue/nvme-reset-wq' > kobject: 'nvme-delete-wq' (00000000dc28d66f): kobject_add_internal: > parent: 'workqueue', set: 'devices' > kobject: 'nvme-delete-wq' (00000000dc28d66f): kobject_uevent_env > kobject: 'nvme-delete-wq' (00000000dc28d66f): kobject_uevent_env: > uevent_suppress caused the event to drop! > kobject: 'nvme-delete-wq' (00000000dc28d66f): kobject_uevent_env > kobject: 'nvme-delete-wq' (00000000dc28d66f): fill_kobj_path: path > = '/devices/virtual/workqueue/nvme-delete-wq' > kobject: 'nvme' (00000000d7d8a11c): kobject_add_internal: parent: 'class', > set: 'class' > kobject: 'nvme' (00000000d7d8a11c): kobject_uevent_env > kobject: 'nvme' (00000000d7d8a11c): fill_kobj_path: path = '/class/nvme' > kobject: 'nvme-subsystem' (00000000f9b59088): kobject_add_internal: > parent: 'class', set: 'class' > kobject: 'nvme-subsystem' (00000000f9b59088): kobject_uevent_env > kobject: 'nvme-subsystem' (00000000f9b59088): fill_kobj_path: path > = '/class/nvme-subsystem' > kobject: 'nvme' (000000005b8830cb): kobject_add_internal: > parent: 'drivers', set: 'drivers' > kobject: 'drivers' (00000000f79b6140): kobject_add_internal: > parent: 'nvme', set: '<NULL>' > kobject: 'nvme' (000000005b8830cb): kobject_uevent_env > kobject: 'nvme' (000000005b8830cb): fill_kobj_path: path > = '/bus/pci/drivers/nvme' > kobject: 'ahci' (000000005bbce619): kobject_add_internal: > parent: 'drivers', set: 'drivers' > kobject: 'drivers' (000000000440468e): kobject_add_internal: > parent: 'ahci', set: '<NULL>' > kobject: 'ahci' (000000005bbce619): kobject_uevent_env > kobject: 'ahci' (000000005bbce619): fill_kobj_path: path > = '/bus/pci/drivers/ahci' > kobject: 'ata_piix' (00000000b703d945): kobject_add_internal: > parent: 'drivers', set: 'drivers' > kobject: 'drivers' (000000008d5db480): kobject_add_internal: > parent: 'ata_piix', set: '<NULL>' > kobject: 'ata_piix' (00000000b703d945): 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. > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/0000000000007246fb058eabb9fb%40google.com.
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