ci2 starts bisection 2023-11-12 21:36:37.343905527 +0000 UTC m=+125957.120286216 bisecting fixing commit since ca48fc16c49388400eddd6c6614593ebf7c7726a building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88 ensuring issue is reproducible on original commit ca48fc16c49388400eddd6c6614593ebf7c7726a testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78721a6b18a4ace034621ed63e036c9f8d3f2b27ebf5d828daae7bae8f449e1d all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46b5ed72bae7a7c3bfb6746b311ec6e303c9f9a4c4848f9529ac38f451582d66 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed kconfig minimization: base=3820 full=7524 leaves diff=1994 split chunks (needed=false): <1994> split chunk #0 of len 1994 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bb5d20ac23fa7ccba9d041ade3d06ef66350f200e1d220d9dea10d883f9d9fb4 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: acb66ab30e0318ffba3b6835999a79cc311b8a98abb7205b48c14c7b1ec8e976 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6cedee8a5005f72740418e256b049c3cd31b60021fa61fb0e1638f12718ec681 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b3fc38e515be64709e54144d490f5505e7021b67b2ba9a00d14dfe20c6d950b all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5935fb0fc1bae7e87219e6ca8c8e9e6d7843fb2bca6ef251f2616364ce0bf43f run #0: crashed: possible deadlock in nci_start_poll run #1: crashed: possible deadlock in virtual_nci_close run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] the chunk can be dropped minimized to 399 configs; suspects: [ATM AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LRU_GEN LRU_GEN_ENABLED LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_CLS_RSVP NET_CLS_RSVP6 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_ATM NET_SCH_CAKE NET_SCH_CBQ NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_DSMARK NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V2_ACL NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI] disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed determining the merge base between ca48fc16c49388400eddd6c6614593ebf7c7726a and e257da5715365b853439243f89cf5d8a9d382355 830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 209dfcb498a73fd60cf78fa10b7b9ed951339619727bdbfe4d90c42b9128f9a4 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] testing current HEAD e257da5715365b853439243f89cf5d8a9d382355 testing commit e257da5715365b853439243f89cf5d8a9d382355 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4275e6efa469fef96bb3f6258227a61078a547158bb6001f8b55c0aa440548cb all runs: OK false negative chance: 0.000 # git bisect start e257da5715365b853439243f89cf5d8a9d382355 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 Bisecting: 47370 revisions left to test after this (roughly 16 steps) [f8b2507c263d6c1478d179c7c260064a61f14542] Merge tag 'x86-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit f8b2507c263d6c1478d179c7c260064a61f14542 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b03e6b11341ecf821f9a10291a8e35f8af800e0788e70f08536ed87b17d42f83 all runs: OK false negative chance: 0.000 # git bisect bad f8b2507c263d6c1478d179c7c260064a61f14542 Bisecting: 23699 revisions left to test after this (roughly 15 steps) [307e14c039063f0c9bd7a18a7add8f940580dcc9] Merge tag '6.3-rc-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 307e14c039063f0c9bd7a18a7add8f940580dcc9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a0ae7c3139262b4f80acb6fcf22af93a8228b24cbf0d86a36f087e8e2bcc96b4 all runs: OK false negative chance: 0.000 # git bisect bad 307e14c039063f0c9bd7a18a7add8f940580dcc9 Bisecting: 11748 revisions left to test after this (roughly 14 steps) [58bcac11fd94f950abc7b8466c5ceac7be07a00e] Merge tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 58bcac11fd94f950abc7b8466c5ceac7be07a00e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5d8a61bafaad5ff4b13fa6fed6f1263f471275d041c45e91c9a0030dcfff1b6d all runs: OK false negative chance: 0.000 # git bisect bad 58bcac11fd94f950abc7b8466c5ceac7be07a00e Bisecting: 5718 revisions left to test after this (roughly 13 steps) [a594533df0f6ca391da003f43d53b336a2d23ffa] Merge tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit a594533df0f6ca391da003f43d53b336a2d23ffa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 802f55db3782d3abf6bb8b073dc1f2518eddb454a1d67e4b270b5c612f9e2da9 run #0: crashed: possible deadlock in virtual_nci_close run #1: crashed: possible deadlock in virtual_nci_close run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in virtual_nci_close run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in virtual_nci_close, types: [LOCKDEP] # git bisect good a594533df0f6ca391da003f43d53b336a2d23ffa Bisecting: 3505 revisions left to test after this (roughly 12 steps) [7c4a6309e27f411743817fe74a832ec2d2798a4b] ipvs: fix type warning in do_div() on 32 bit determine whether the revision contains the guilty commit checking the merge base 010b6761a9fc5006267d99abb6f9f196bf5d3d13 no existing result, test the revision testing commit 010b6761a9fc5006267d99abb6f9f196bf5d3d13 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b411f85b92f96f91aed4130d4f17e0d6c5225c5d9ff2086763e536e36feb564 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] testing commit 7c4a6309e27f411743817fe74a832ec2d2798a4b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 47324dd77d1b8f5be6561dee8936b87c3dde53e67e2b71d7062526484e49473f all runs: OK false negative chance: 0.000 # git bisect bad 7c4a6309e27f411743817fe74a832ec2d2798a4b Bisecting: 1101 revisions left to test after this (roughly 10 steps) [c609d739947894d7370eae4cf04eb2c49e910bcf] Merge tag 'wireless-next-2022-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next determine whether the revision contains the guilty commit checking the merge base 847ccab8fdcf4a0cd85a278480fab1ccdc9f6136 no existing result, test the revision testing commit 847ccab8fdcf4a0cd85a278480fab1ccdc9f6136 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c915226b23fb53bd7a4dde81e2fb21cd3959680ecc754208c13c9c44726f4a3d run #0: crashed: possible deadlock in nci_start_poll run #1: crashed: possible deadlock in nci_start_poll run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in virtual_nci_close run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] testing commit c609d739947894d7370eae4cf04eb2c49e910bcf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d254f43fc35fea6110ddbb873519a42a14b6cd42c01c296dc1bc5b5e0a0ff55 all runs: OK false negative chance: 0.000 # git bisect bad c609d739947894d7370eae4cf04eb2c49e910bcf Bisecting: 554 revisions left to test after this (roughly 9 steps) [d3a4706339da26633316357efe7ab9a92ff29b2a] Merge branch 'rocker-two-small-changes' determine whether the revision contains the guilty commit checking the merge base 23758867219c8d84c8363316e6dd2f9fd7ae3049 no existing result, test the revision testing commit 23758867219c8d84c8363316e6dd2f9fd7ae3049 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d02a356b4acc9cb42a9dd2f0ecc8a5573d056e35bb61c5eab8caa6a4ab9ddcf4 run #0: crashed: possible deadlock in nci_start_poll run #1: crashed: possible deadlock in nci_start_poll run #2: crashed: possible deadlock in virtual_nci_close run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in virtual_nci_close run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] testing commit d3a4706339da26633316357efe7ab9a92ff29b2a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 690a99bbdc37bc0d80ac0adcb080bd4659a544e759ba32e034318efc8634caa2 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good d3a4706339da26633316357efe7ab9a92ff29b2a Bisecting: 304 revisions left to test after this (roughly 8 steps) [f1a7178b44f3d82c21ee9d8a145ce5edbd5d3b99] Merge branch 'net-vlan-claim-one-bit-from-sk_buff' determine whether the revision contains the guilty commit revision 23758867219c8d84c8363316e6dd2f9fd7ae3049 crashed and is reachable testing commit f1a7178b44f3d82c21ee9d8a145ce5edbd5d3b99 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 57665459e2438d689e53964b832d3401ecfba63ad7566552b6a1fd1e559c4e35 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good f1a7178b44f3d82c21ee9d8a145ce5edbd5d3b99 Bisecting: 152 revisions left to test after this (roughly 7 steps) [cb34b7cf17ecf33499c9298943f85af247abc1e9] ipv6/sit: use DEV_STATS_INC() to avoid data-races determine whether the revision contains the guilty commit revision f1a7178b44f3d82c21ee9d8a145ce5edbd5d3b99 crashed and is reachable testing commit cb34b7cf17ecf33499c9298943f85af247abc1e9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cd5fb006d574481efcfa5c2406827b523af9012ee20ee8a6ca1133d707a50cd2 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good cb34b7cf17ecf33499c9298943f85af247abc1e9 Bisecting: 76 revisions left to test after this (roughly 6 steps) [06463f6e98df34908c26aa8e7a31a279646b1f51] wifi: wl1251: drop support for platform data determine whether the revision contains the guilty commit revision 23758867219c8d84c8363316e6dd2f9fd7ae3049 crashed and is reachable testing commit 06463f6e98df34908c26aa8e7a31a279646b1f51 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 26b180dd74fa92488a0e9eca6ded140e631bac221752e413a3af2616f0f5053f all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good 06463f6e98df34908c26aa8e7a31a279646b1f51 Bisecting: 37 revisions left to test after this (roughly 5 steps) [24f627a3a85f2b3c71e0e975a641e4f6df5df4a2] Merge branch 'implement-devlink-rate-api-and-extend-it' determine whether the revision contains the guilty commit revision 23758867219c8d84c8363316e6dd2f9fd7ae3049 crashed and is reachable testing commit 24f627a3a85f2b3c71e0e975a641e4f6df5df4a2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f39bd4579dae11229bbcd5146577fa22b8015f4c05c274b34ce45db4f754f007 all runs: OK false negative chance: 0.000 # git bisect bad 24f627a3a85f2b3c71e0e975a641e4f6df5df4a2 Bisecting: 19 revisions left to test after this (roughly 4 steps) [e50c50367d98297703f8a02e3c9241e8b4c37b8f] dt-bindings: net: ipq4019-mdio: require and validate clocks determine whether the revision contains the guilty commit revision f1a7178b44f3d82c21ee9d8a145ce5edbd5d3b99 crashed and is reachable testing commit e50c50367d98297703f8a02e3c9241e8b4c37b8f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b33631bc2a745522f3e19231e90f41f44567857ce41fb5728ece3395878565e6 all runs: OK false negative chance: 0.000 # git bisect bad e50c50367d98297703f8a02e3c9241e8b4c37b8f Bisecting: 9 revisions left to test after this (roughly 3 steps) [b2e44aac91b25abbed57d785089c4b7af926a7bd] NFC: nci: Allow to create multiple virtual nci devices determine whether the revision contains the guilty commit revision f1a7178b44f3d82c21ee9d8a145ce5edbd5d3b99 crashed and is reachable testing commit b2e44aac91b25abbed57d785089c4b7af926a7bd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 206d73d00c47fd93e29e6fc44c93e4fc175cf40e4fa7c04a31184377754c07be all runs: OK false negative chance: 0.000 # git bisect bad b2e44aac91b25abbed57d785089c4b7af926a7bd Bisecting: 4 revisions left to test after this (roughly 2 steps) [1d7322f28fde3f90f2a2ed0b62fafc004b3f822a] ax25: af_ax25: Remove unnecessary (void*) conversions determine whether the revision contains the guilty commit revision d3a4706339da26633316357efe7ab9a92ff29b2a crashed and is reachable testing commit 1d7322f28fde3f90f2a2ed0b62fafc004b3f822a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb3626a63b3bf53967ed6bc3430dc0c12b35804d124c4627f6c21779a23a6dac run #0: crashed: possible deadlock in virtual_nci_close run #1: crashed: possible deadlock in nci_start_poll run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in virtual_nci_close, types: [LOCKDEP] # git bisect good 1d7322f28fde3f90f2a2ed0b62fafc004b3f822a Bisecting: 2 revisions left to test after this (roughly 1 step) [d82303df06481235fe7cbaf605075e0c2c87e99b] mlxsw: update adjfine to use adjust_by_scaled_ppm determine whether the revision contains the guilty commit revision 23758867219c8d84c8363316e6dd2f9fd7ae3049 crashed and is reachable testing commit d82303df06481235fe7cbaf605075e0c2c87e99b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 750c26b9c979fc8a63da949894430f4088f0f7dd75d876f3c2d1c31d1db8c9e7 run #0: crashed: possible deadlock in nci_start_poll run #1: crashed: possible deadlock in nci_start_poll run #2: crashed: possible deadlock in virtual_nci_close run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good d82303df06481235fe7cbaf605075e0c2c87e99b Bisecting: 0 revisions left to test after this (roughly 1 step) [710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9] sundance: remove unused variable cnt determine whether the revision contains the guilty commit revision d3a4706339da26633316357efe7ab9a92ff29b2a crashed and is reachable testing commit 710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a003be1fd8821354c9b137a5e6a134f4fea9b47b27877c192a2972381e64bd99 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good 710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9 b2e44aac91b25abbed57d785089c4b7af926a7bd is the first bad commit commit b2e44aac91b25abbed57d785089c4b7af926a7bd Author: Dmitry Vyukov Date: Tue Nov 15 11:00:17 2022 +0100 NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov Reviewed-by: Bongsu Jeon Cc: Bongsu Jeon Cc: Krzysztof Kozlowski Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni drivers/nfc/virtual_ncidev.c | 147 +++++++++++++++++++++---------------------- 1 file changed, 71 insertions(+), 76 deletions(-) accumulated error probability: 0.00 culprit signature: 206d73d00c47fd93e29e6fc44c93e4fc175cf40e4fa7c04a31184377754c07be parent signature: a003be1fd8821354c9b137a5e6a134f4fea9b47b27877c192a2972381e64bd99 revisions tested: 28, total time: 4h43m45.804525209s (build: 1h38m20.155563265s, test: 2h54m10.140240594s) first good commit: b2e44aac91b25abbed57d785089c4b7af926a7bd NFC: nci: Allow to create multiple virtual nci devices recipients (to): ["bongsu.jeon@samsung.com" "dvyukov@google.com" "pabeni@redhat.com"] recipients (cc): []