ci2 starts bisection 2023-10-26 06:39:39.774857725 +0000 UTC m=+51539.561578170 bisecting fixing commit since b0ece631f84a3e70341496b000b094b7dfdf4e5f building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88 ensuring issue is reproducible on original commit b0ece631f84a3e70341496b000b094b7dfdf4e5f testing commit b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2fb372d1674613573808c280fd98d9c65ae311920b665953c9c3e1fa1e7c31f2 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 nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in virtual_nci_close 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 run #10: crashed: possible deadlock in virtual_nci_close run #11: crashed: possible deadlock in nci_start_poll run #12: crashed: possible deadlock in nci_start_poll run #13: crashed: possible deadlock in nci_start_poll run #14: crashed: possible deadlock in nci_start_poll run #15: crashed: possible deadlock in nci_start_poll run #16: crashed: possible deadlock in nci_start_poll run #17: crashed: possible deadlock in nci_start_poll run #18: crashed: possible deadlock in nci_start_poll run #19: 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cc52eca10012f5ca81401bb3911b4e4d409baa2e85c5114c6ff3bf4dbc59f0d7 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=3703 full=7272 leaves diff=1986 split chunks (needed=false): <1986> split chunk #0 of len 1986 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 b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 73de552275d44d06702ba144fd690604746b87b48983b12059e8ca81a2b16c41 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 [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e05bfcd5a9153176c68390c34ffdb872593b2e962379057dcd2b8f8c6aade276 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 [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: efde3b3bb7b84a6ea07db8881c8c53b853691e7be28cec22a14cac0349aa8544 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 925a567d44e98f4831827b51b4ff7f6bf06c703e53ddc77f59b225dd524c2840 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 [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit b0ece631f84a3e70341496b000b094b7dfdf4e5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c83204a607a4417c8bc44fe8dfd33db75bc77319c1b56dd5a57dbd123626874a 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 nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: boot failed: can't ssh into the instance run #7: boot failed: can't ssh into the instance run #8: boot failed: can't ssh into the instance run #9: boot failed: can't ssh into the instance representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] the chunk can be dropped minimized to 398 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 ISDN 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_INTEL 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 LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH 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 MEDIA_TUNER_XC2028 MEDIA_TUNER_XC5000 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_BLK 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 NETFS_SUPPORT 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_CGROUP 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_EGRESS 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 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_COUNTER 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_OBJREF 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_FLOW_TABLE_IPV4 NF_FLOW_TABLE_IPV6 NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 PARTITION_ADVANCED PSAMPLE RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV VIDEO_V4L2 WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32] disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed determining the merge base between b0ece631f84a3e70341496b000b094b7dfdf4e5f and 611da07b89fdd53f140d7b33013f255bf0ed8f34 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82df3c2a00dbfdd3ae1791d082f9f7160309528cfc47737a5214fb1c51168e1e all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] testing current HEAD 611da07b89fdd53f140d7b33013f255bf0ed8f34 testing commit 611da07b89fdd53f140d7b33013f255bf0ed8f34 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec7e9da88ce81dd749dd3557f9c81e46662639185c277f600c2493574f411576 all runs: OK false negative chance: 0.000 # git bisect start 611da07b89fdd53f140d7b33013f255bf0ed8f34 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 86042 revisions left to test after this (roughly 16 steps) [62e6e5940c0c09433efa52d0fa9a11623a4704b2] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 62e6e5940c0c09433efa52d0fa9a11623a4704b2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 733bc161a699caa01e85429232a04026afb0ed8c1978c98ecb4bb58d6715ebb2 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good 62e6e5940c0c09433efa52d0fa9a11623a4704b2 Bisecting: 43563 revisions left to test after this (roughly 15 steps) [c034203b6a9dae6751ef4371c18cb77983e30c28] nfsd: fix double fget() bug in __write_ports_addfd() determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit c034203b6a9dae6751ef4371c18cb77983e30c28 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46e5330c6bff18901a11f2d03b2cc146783ff4b95d6db81689cb0377722540c5 all runs: OK false negative chance: 0.000 # git bisect bad c034203b6a9dae6751ef4371c18cb77983e30c28 Bisecting: 21245 revisions left to test after this (roughly 14 steps) [b8fd76f41820951d8a6e2521c25f54afadf338bd] Merge tag 'iommu-updates-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit b8fd76f41820951d8a6e2521c25f54afadf338bd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c8e7512fa49b89c625b83dd76d8af442cb23d6bba51ce25d50cd65425fd4bdd2 all runs: OK false negative chance: 0.000 # git bisect bad b8fd76f41820951d8a6e2521c25f54afadf338bd Bisecting: 10625 revisions left to test after this (roughly 13 steps) [07d7a4d6961a221af7023d08c89da8ed12fa7dda] Merge tag 'fs.xattr.simple.noaudit.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 07d7a4d6961a221af7023d08c89da8ed12fa7dda gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e52a9512230c54cc70c56795b3f9b2a49c33ce3796ec32c7292da736fbee96f5 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good 07d7a4d6961a221af7023d08c89da8ed12fa7dda Bisecting: 6075 revisions left to test after this (roughly 12 steps) [1ca06f1c1acecbe02124f14a37cce347b8c1a90c] Merge tag 'xtensa-20221213' of https://github.com/jcmvbkbc/linux-xtensa determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 1ca06f1c1acecbe02124f14a37cce347b8c1a90c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f03d9a24e7a4168005ea50b91955c328524f1a5c872495b5ace29e7f3194e420 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 nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in virtual_nci_close 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 1ca06f1c1acecbe02124f14a37cce347b8c1a90c Bisecting: 3029 revisions left to test after this (roughly 12 steps) [87be949912eedb73690d8eaeb086f24bfe17438d] Merge tag 'xfs-6.2-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux determine whether the revision contains the guilty commit revision 07d7a4d6961a221af7023d08c89da8ed12fa7dda crashed and is reachable testing commit 87be949912eedb73690d8eaeb086f24bfe17438d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dbad3f549b67ce6ec478a19a9592bb2ce9e229ffb95051c70c630eb518e96448 all runs: OK false negative chance: 0.000 # git bisect bad 87be949912eedb73690d8eaeb086f24bfe17438d Bisecting: 1535 revisions left to test after this (roughly 11 steps) [dbadae92728788d61e910506b0cb61986c7fdb4a] tsnep: Rework RX buffer allocation determine whether the revision contains the guilty commit revision 62e6e5940c0c09433efa52d0fa9a11623a4704b2 crashed and is reachable testing commit dbadae92728788d61e910506b0cb61986c7fdb4a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c4877175caf2da954ee5b3ea1def9c6970feab65c9ca14594f817e3d5b7c14b all runs: OK false negative chance: 0.000 # git bisect bad dbadae92728788d61e910506b0cb61986c7fdb4a Bisecting: 760 revisions left to test after this (roughly 10 steps) [edaf5df22cb8e7e849773ce69fcc9bc20ca92160] ethtool: ethtool_get_drvinfo: populate drvinfo fields even if callback exits determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit edaf5df22cb8e7e849773ce69fcc9bc20ca92160 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0dbe4d54fe761526b63a646d0deb4acd63c934c68b70fe38fec9aa14b4294fc6 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] # git bisect good edaf5df22cb8e7e849773ce69fcc9bc20ca92160 Bisecting: 380 revisions left to test after this (roughly 9 steps) [d169ecb536e46985e3e2acf5f2b39efae3953c2d] net: dsa: tag_mtk: assign per-port queues determine whether the revision contains the guilty commit revision edaf5df22cb8e7e849773ce69fcc9bc20ca92160 crashed and is reachable testing commit d169ecb536e46985e3e2acf5f2b39efae3953c2d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01fdfbf70ca42276a9e9634d88147316e3e5fa249f6abeb5524cbf2c3e8dfa84 all runs: OK false negative chance: 0.000 # git bisect bad d169ecb536e46985e3e2acf5f2b39efae3953c2d Bisecting: 189 revisions left to test after this (roughly 8 steps) [2e0f1eb05692b489bb9fdd30617b52022a93b2e3] sfc: attach an MAE counter to TC actions that need it determine whether the revision contains the guilty commit revision edaf5df22cb8e7e849773ce69fcc9bc20ca92160 crashed and is reachable testing commit 2e0f1eb05692b489bb9fdd30617b52022a93b2e3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 32e2832b2031141a8fb29d8e417b8529e87ca17fc6ea5801f6a9a045e4df7c9e all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good 2e0f1eb05692b489bb9fdd30617b52022a93b2e3 Bisecting: 94 revisions left to test after this (roughly 7 steps) [e7e40cc6555ca0b395a09fc6b9a036e4a8ac6f41] Merge tag 'iwlwifi-next-for-kalle-2022-11-06-v2' of http://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit e7e40cc6555ca0b395a09fc6b9a036e4a8ac6f41 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 826d6a9676598a6e9063879efa26eba6a125fcefe5ea14711c9f52d5e4b2d707 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 nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in virtual_nci_close 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 e7e40cc6555ca0b395a09fc6b9a036e4a8ac6f41 Bisecting: 47 revisions left to test after this (roughly 6 steps) [cd502236835b678738810ecd501c85a3a7a11150] devlink: Introduce new attribute 'tx_priority' to devlink-rate determine whether the revision contains the guilty commit revision 2e0f1eb05692b489bb9fdd30617b52022a93b2e3 crashed and is reachable testing commit cd502236835b678738810ecd501c85a3a7a11150 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 084954cb90f04d3a9855952949c0c8fc6c35f80b24906dcb44858726d86f893e all runs: OK false negative chance: 0.000 # git bisect bad cd502236835b678738810ecd501c85a3a7a11150 Bisecting: 23 revisions left to test after this (roughly 5 steps) [1d7322f28fde3f90f2a2ed0b62fafc004b3f822a] ax25: af_ax25: Remove unnecessary (void*) conversions determine whether the revision contains the guilty commit revision 2e0f1eb05692b489bb9fdd30617b52022a93b2e3 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: bb07b606e974e18aa2749c318b87416f4fd4ba69ecbafa0c86c0afabbe57c968 all runs: crashed: possible deadlock in nci_start_poll representative crash: possible deadlock in nci_start_poll, types: [LOCKDEP] # git bisect good 1d7322f28fde3f90f2a2ed0b62fafc004b3f822a Bisecting: 11 revisions left to test after this (roughly 4 steps) [2ffff1449ddd35cad113614fce2424da235f7560] Merge branch 'net-dsa-use-more-appropriate-net_name_-constants-for-user-ports' determine whether the revision contains the guilty commit revision 1d7322f28fde3f90f2a2ed0b62fafc004b3f822a crashed and is reachable testing commit 2ffff1449ddd35cad113614fce2424da235f7560 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0fdd59a8204ae789e6a1a8743c8e53f1caee8dcf09d6ec80b962a17152bf60ce all runs: OK false negative chance: 0.000 # git bisect bad 2ffff1449ddd35cad113614fce2424da235f7560 Bisecting: 5 revisions left to test after this (roughly 3 steps) [b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7] net: ethernet: renesas: Fix return type in rswitch_etha_wait_link_verification() determine whether the revision contains the guilty commit revision 1d7322f28fde3f90f2a2ed0b62fafc004b3f822a crashed and is reachable testing commit b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ae147612d7c61739be7d01e1fd1e10e81c1152675f7ca667371a2d662907ef84 all runs: OK false negative chance: 0.000 # git bisect bad b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7 Bisecting: 2 revisions left to test after this (roughly 2 steps) [b0798310f84c97d91e02c950d54677cad91ec5dd] sctp: sm_statefuns: Remove pointer casts of the same type determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit b0798310f84c97d91e02c950d54677cad91ec5dd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3b71a7a3aee35145ac480bf85a7d83e8c15dbce9bb2943d8ae173b027df8cb4b 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 nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in virtual_nci_close 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 b0798310f84c97d91e02c950d54677cad91ec5dd Bisecting: 0 revisions left to test after this (roughly 1 step) [b2e44aac91b25abbed57d785089c4b7af926a7bd] NFC: nci: Allow to create multiple virtual nci devices determine whether the revision contains the guilty commit revision edaf5df22cb8e7e849773ce69fcc9bc20ca92160 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: 0d2403699aaadbf9a7d3792ddd564e66da9643df4f7bc31b8623255cf73cb1fb all runs: OK false negative chance: 0.000 # git bisect bad b2e44aac91b25abbed57d785089c4b7af926a7bd Bisecting: 0 revisions left to test after this (roughly 0 steps) [710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9] sundance: remove unused variable cnt determine whether the revision contains the guilty commit revision 62e6e5940c0c09433efa52d0fa9a11623a4704b2 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: 1fc851e273ef98c3821ff250b115dfe051e2b686114749d1ab11a4f1a86f1750 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 nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in virtual_nci_close 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 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: 0d2403699aaadbf9a7d3792ddd564e66da9643df4f7bc31b8623255cf73cb1fb parent signature: 1fc851e273ef98c3821ff250b115dfe051e2b686114749d1ab11a4f1a86f1750 revisions tested: 27, total time: 4h41m15.16856885s (build: 1h25m40.785201676s, test: 3h6m39.408233523s) 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): []