ci starts bisection 2023-10-22 00:54:06.55881429 +0000 UTC m=+89850.979679567 bisecting cause commit starting from a785fd28d31f76d50004712b6e0b409d5a8239d8 building syzkaller on 39990d513277ce9372a4cc89bdac23d9fc30b056 ensuring issue is reproducible on original commit a785fd28d31f76d50004712b6e0b409d5a8239d8 testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 690bdb924015ede35e2bd4c262776dd8127415a8273f612a087f394dc9c60f54 run #0: crashed: INFO: rcu detected stall in net_tx_action run #1: crashed: INFO: rcu detected stall in net_tx_action run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in net_tx_action run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in newfstatat run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in sys_futex run #8: crashed: INFO: rcu detected stall in sys_clock_nanosleep run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc run #10: crashed: INFO: rcu detected stall in sys_execve run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in process_one_work run #13: crashed: INFO: rcu detected stall in tc_modify_qdisc run #14: crashed: INFO: rcu detected stall in batadv_nc_worker run #15: crashed: INFO: rcu detected stall in sys_clock_nanosleep run #16: crashed: INFO: rcu detected stall in pipe_write run #17: crashed: INFO: rcu detected stall in hci_cmd_timeout run #18: OK run #19: OK representative crash: INFO: rcu detected stall in net_tx_action, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88020211c491abf4bad4d28b49fa118a07baca212b90cd2cece17d29567f2212 run #0: crashed: INFO: rcu detected stall in newfstatat run #1: crashed: INFO: rcu detected stall in cfg80211_wiphy_work run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: rcu detected stall in newfstatat, types: [HANG] kconfig minimization: base=3883 full=7652 leaves diff=1999 split chunks (needed=false): <1999> split chunk #0 of len 1999 into 5 parts testing without sub-chunk 1/5 testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 44704645803ae542b03b9affbdc34269dd99924d9a6b33e87a988bf2f2741861 run #0: crashed: INFO: rcu detected stall in net_tx_action run #1: crashed: INFO: rcu detected stall in net_tx_action run #2: crashed: INFO: rcu detected stall in schedule_timeout run #3: crashed: INFO: rcu detected stall in sys_getsockopt run #4: crashed: INFO: rcu detected stall in packet_release run #5: crashed: INFO: rcu detected stall in security_file_ioctl run #6: crashed: INFO: rcu detected stall in clone run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in prepare_to_swait_event run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in sys_clock_nanosleep run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in vma_expand run #13: crashed: INFO: rcu detected stall in worker_thread run #14: crashed: INFO: rcu detected stall in cfg80211_wiphy_work run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in net_tx_action, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d66f20d8b5add61c2b08b961d6abc57a104b018184e3b2f2ef299d701c327831 run #0: crashed: INFO: rcu detected stall in newfstatat run #1: crashed: INFO: rcu detected stall in newfstatat run #2: crashed: INFO: rcu detected stall in sys_clock_nanosleep run #3: crashed: INFO: rcu detected stall in sys_openat run #4: crashed: INFO: rcu detected stall in packet_release run #5: crashed: INFO: rcu detected stall in sys_getdents64 run #6: crashed: INFO: rcu detected stall in sys_unlink run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in nsim_dev_trap_report_work run #9: crashed: INFO: rcu detected stall in net_tx_action run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in schedule run #12: crashed: INFO: rcu detected stall in sys_clock_nanosleep run #13: crashed: INFO: rcu detected stall in newfstatat run #14: crashed: INFO: rcu detected stall in nsim_dev_trap_report_work run #15: crashed: INFO: rcu detected stall in schedule run #16: crashed: INFO: rcu detected stall in process_one_work run #17: crashed: INFO: rcu detected stall in cfg80211_wiphy_work run #18: OK run #19: OK representative crash: INFO: rcu detected stall in newfstatat, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 20ca147265814fd956db373f87df1c93d33105c1ee058a17c8f7abd1dbdc48f8 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c58a79506c63690f7e4a32347026c84eda8cd4d5962a08bff2116e855de0848 run #0: crashed: INFO: rcu detected stall in tcp_setsockopt run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in net_tx_action run #3: crashed: INFO: rcu detected stall in net_tx_action run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc run #5: crashed: INFO: rcu detected stall in net_tx_action run #6: crashed: INFO: rcu detected stall in schedule_timeout run #7: crashed: INFO: rcu detected stall in net_tx_action run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in tcp_setsockopt, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 testing commit a785fd28d31f76d50004712b6e0b409d5a8239d8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6e260c402cac6c49ef63a3c1b6b35f2c42529f979d766c6af6707734cace6f6b run #0: crashed: INFO: rcu detected stall in packet_release run #1: crashed: INFO: rcu detected stall in net_tx_action run #2: crashed: INFO: rcu detected stall in flock run #3: crashed: INFO: rcu detected stall in sys_unlinkat run #4: crashed: INFO: rcu detected stall in net_tx_action run #5: crashed: INFO: rcu detected stall in net_tx_action run #6: crashed: INFO: rcu detected stall in net_tx_action run #7: crashed: INFO: rcu detected stall in net_tx_action run #8: crashed: INFO: rcu detected stall in net_tx_action run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in packet_release, types: [HANG] the chunk can be dropped minimized to 400 configs; suspects: [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_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_UDP 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_GENERIC_HARDWARE_ENABLING 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 LOCALVERSION_AUTO 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_BPF_LINK NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XTABLES_COMPAT 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_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_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR 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_MQPRIO_LIB 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_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_OVS 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_OVS NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC 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] picked [v6.4 v6.3 v6.2 v6.0 v5.18 v5.16 v5.14 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 27 release tags testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0bbdc768b141995b3c56096d7e2e7169a352c946b0092cadd9bdfa516f78048 run #0: crashed: INFO: rcu detected stall in net_tx_action run #1: crashed: INFO: rcu detected stall in net_tx_action run #2: crashed: INFO: rcu detected stall in tc_modify_qdisc run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in sys_symlinkat run #5: crashed: INFO: rcu detected stall in tc_modify_qdisc run #6: crashed: INFO: rcu detected stall in net_tx_action run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in net_tx_action, types: [HANG] testing release v6.3 testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d7630e1d881ed4f42c04c08a913793011b19bd019c4cb62a8f0d89ff76c3213 run #0: crashed: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq run #1: crashed: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq run #2: crashed: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq run #3: crashed: INFO: rcu detected stall in tc_modify_qdisc run #4: crashed: INFO: rcu detected stall in wait4 run #5: crashed: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq run #6: crashed: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq run #7: crashed: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-out-of-bounds Read in taprio_dequeue_from_txq, types: [KASAN] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 683ec0e26c699b3a1ee42750bcd9d009ae446a00f22bfe49ec71049293450bc5 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd28b83741f367dc498db04083fdd7d2907d6c6455d354be75f48447c512aba8 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ff5d41ae607188ee326108886abcb4ae71827b1369765c109520600a8328794d all runs: OK false negative chance: 0.000 # git bisect start 4fe89d07dcc2804c8b562f6c7896a45643d34b2f 4b0986a3613c92f4ec1bdc7f60ec66fea135991f Bisecting: 16503 revisions left to test after this (roughly 14 steps) [0fac198def2b41138850867b6aa92044c76ff802] Merge tag 'fs.idmapped.overlay.acl.v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 0fac198def2b41138850867b6aa92044c76ff802 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12032e678690b175b8c8b9341e4635019f3c33a4a4f5a52bdda99e116af53a50 all runs: OK false negative chance: 0.000 # git bisect good 0fac198def2b41138850867b6aa92044c76ff802 Bisecting: 8189 revisions left to test after this (roughly 13 steps) [723c188d5cd42a07344f997b0b7e1d83b4173c8d] Merge tag 'staging-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit 723c188d5cd42a07344f997b0b7e1d83b4173c8d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 550138ec21990faaad9249053915b1dde32e77cbe8de9ce49ee4e6bf6728d644 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 723c188d5cd42a07344f997b0b7e1d83b4173c8d Bisecting: 5185 revisions left to test after this (roughly 12 steps) [526942b8134cc34d25d27f95dfff98b8ce2f6fcd] Merge tag 'ata-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata testing commit 526942b8134cc34d25d27f95dfff98b8ce2f6fcd gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6f7dcd51b1185bbc407f6b8c4399fa3d8b91986fa4934dcee59597b162528bb2 all runs: OK false negative chance: 0.000 # git bisect good 526942b8134cc34d25d27f95dfff98b8ce2f6fcd Bisecting: 2622 revisions left to test after this (roughly 11 steps) [12b68040a5e468068fd7f4af1150eab8f6e96235] Merge tag 'media/v5.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit 12b68040a5e468068fd7f4af1150eab8f6e96235 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 749aa718445bddf22ec8b680d96707a575db8e019fcf11fc56d51f8579d7225f run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 12b68040a5e468068fd7f4af1150eab8f6e96235 Bisecting: 1281 revisions left to test after this (roughly 10 steps) [b945804d993072e24138741ab67e28f6b09b2502] Merge tag 'linux-can-next-for-5.20-20220721' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next testing commit b945804d993072e24138741ab67e28f6b09b2502 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 336bffd0618a51c72c2c85de8541d00506d4c6bd352c6b1bb5010c7128b20de0 all runs: basic kernel testing failed: INFO: trying to register non-static key in ieee80211_do_stop unable to determine the verdict: 0 good runs (wanted 15), for bad wanted 10 in total, got 0 # git bisect skip b945804d993072e24138741ab67e28f6b09b2502 Bisecting: 1281 revisions left to test after this (roughly 10 steps) [0b4de2523f281b0492de3427da82495bfca6f263] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode testing commit 0b4de2523f281b0492de3427da82495bfca6f263 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 174733129b5b46a370d4a64def0505bafeaa12e5749b04603916d3fc6d42562a all runs: basic kernel testing failed: INFO: trying to register non-static key in ieee80211_do_stop unable to determine the verdict: 0 good runs (wanted 15), for bad wanted 10 in total, got 0 # git bisect skip 0b4de2523f281b0492de3427da82495bfca6f263 Bisecting: 1281 revisions left to test after this (roughly 10 steps) [dde06aaa89b76275407b78108b57f94838287dab] tls: rx: release the sock lock on locking timeout testing commit dde06aaa89b76275407b78108b57f94838287dab gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 460c4500dad54c7fbd6dbf12a4d5249ec8b66932dd091a00806af50a13b6a234 all runs: basic kernel testing failed: INFO: trying to register non-static key in ieee80211_do_stop unable to determine the verdict: 0 good runs (wanted 15), for bad wanted 10 in total, got 0 # git bisect skip dde06aaa89b76275407b78108b57f94838287dab Bisecting: 1281 revisions left to test after this (roughly 10 steps) [7bb7071568e3faec8f5a59c52c15ff9ec879ddb7] net/mlx5e: Add mdev to flow_steering struct testing commit 7bb7071568e3faec8f5a59c52c15ff9ec879ddb7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ab7acc65aee4d7257c518c2874b7b9246e39424ac1292edcc9e5f9698b54fc4 all runs: OK false negative chance: 0.000 # git bisect good 7bb7071568e3faec8f5a59c52c15ff9ec879ddb7 Bisecting: 372 revisions left to test after this (roughly 9 steps) [3c8e19d3d3f9a20cde987fa73fd83b13dcc8604f] media: Add P010 tiled format testing commit 3c8e19d3d3f9a20cde987fa73fd83b13dcc8604f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f52d5570e819d12de2831571cfa4bbea562c0e36c8cf4835c7dc64d3a20808ff all runs: OK false negative chance: 0.000 # git bisect good 3c8e19d3d3f9a20cde987fa73fd83b13dcc8604f Bisecting: 178 revisions left to test after this (roughly 8 steps) [b7d8912cfd1b72c970f727d7da1c8274d5b18803] Merge tag 'linux-can-next-for-5.20-20220731' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: testing commit b7d8912cfd1b72c970f727d7da1c8274d5b18803 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee9d23cfaecd7c9a9f019734e30aa25377ad7f502044793c0f36576510e33b9d all runs: OK false negative chance: 0.000 # git bisect good b7d8912cfd1b72c970f727d7da1c8274d5b18803 Bisecting: 73 revisions left to test after this (roughly 7 steps) [80dc75932ff231b05e0adbf5054bf4c9f0fb468c] Merge tag 'i2c-for-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux testing commit 80dc75932ff231b05e0adbf5054bf4c9f0fb468c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e7de8542eeee7e373327ae6d972f5e5c09b0747f63bd3908e620ddb1792d839 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 80dc75932ff231b05e0adbf5054bf4c9f0fb468c Bisecting: 38 revisions left to test after this (roughly 6 steps) [7c6327c77d509e78bff76f2a4551fcfee851682e] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 7c6327c77d509e78bff76f2a4551fcfee851682e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 815a29f229307519d6b5175c24cdfa1c601f8f3caed86675081e5fd35a4257f7 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 7c6327c77d509e78bff76f2a4551fcfee851682e Bisecting: 32 revisions left to test after this (roughly 5 steps) [2a8f91d2898edf84166976112837f4996c68f706] wireguard: selftests: update config fragments testing commit 2a8f91d2898edf84166976112837f4996c68f706 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 889905fada05e030310943ef06d1d82bcc3a7c9bca7563e91bb357d19702c78f run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 2a8f91d2898edf84166976112837f4996c68f706 Bisecting: 12 revisions left to test after this (roughly 4 steps) [9936e07eaf5b764ff36c5677644bb5d556fb7e45] Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue testing commit 9936e07eaf5b764ff36c5677644bb5d556fb7e45 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5731363214e7baf634044cd8db62051e16d8f64d0fdc5ffb4a7e3690e8a58d46 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #11: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #12: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 9936e07eaf5b764ff36c5677644bb5d556fb7e45 Bisecting: 9 revisions left to test after this (roughly 3 steps) [8b684570eeaa258d7878c6962a50ed7cce690f9c] net/funeth: Tx handling of XDP with fragments. testing commit 8b684570eeaa258d7878c6962a50ed7cce690f9c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46dbb06728ee153fa73774a2ed26a723e777cfed778e6d880068e3cd7fe5e4da run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 8b684570eeaa258d7878c6962a50ed7cce690f9c Bisecting: 4 revisions left to test after this (roughly 2 steps) [09b278462f16569c63dd78ffa29bbfe048b4e604] net: devlink: enable parallel ops on netlink interface testing commit 09b278462f16569c63dd78ffa29bbfe048b4e604 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd52cda1747bae96e9ce94f9e409d586e4e23a464343562acb9f3159e9b7ac13 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #6: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #7: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 09b278462f16569c63dd78ffa29bbfe048b4e604 Bisecting: 1 revision left to test after this (roughly 1 step) [644a66c60f02f302d82c3008ae2ffe67cf495383] net: devlink: convert reload command to take implicit devlink->lock testing commit 644a66c60f02f302d82c3008ae2ffe67cf495383 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fea9e9633389cf7ad94662944024e0eac9f138dc118175aabcedfed0908e3f58 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in corrupted run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 644a66c60f02f302d82c3008ae2ffe67cf495383 Bisecting: 1 revision left to test after this (roughly 1 step) [02a7cb2866dd6e3ac7645b594289e1c308b68c4e] udp: Remove redundant __udp_sysctl_init() call from udp_init(). testing commit 02a7cb2866dd6e3ac7645b594289e1c308b68c4e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c62e35924a5fec72555b9f95f34d9313111bc0f8a61a4c9dcdd03556452a69a4 all runs: OK false negative chance: 0.000 # git bisect good 02a7cb2866dd6e3ac7645b594289e1c308b68c4e Bisecting: 0 revisions left to test after this (roughly 0 steps) [c2368b19807affd7621f7c4638cd2e17fec13021] net: devlink: introduce "unregistering" mark and use it during devlinks iteration testing commit c2368b19807affd7621f7c4638cd2e17fec13021 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f6cdd35fd639cf086c56659634d070558c3c1c6509745eee1c9439dbf9b50f5 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad c2368b19807affd7621f7c4638cd2e17fec13021 c2368b19807affd7621f7c4638cd2e17fec13021 is the first bad commit commit c2368b19807affd7621f7c4638cd2e17fec13021 Author: Jiri Pirko Date: Fri Jul 29 09:10:35 2022 +0200 net: devlink: introduce "unregistering" mark and use it during devlinks iteration Add new mark called "unregistering" to be set at the beginning of devlink_unregister() function. Check this mark during devlinks iteration in order to prevent getting a reference of devlink which is being currently unregistered. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller net/core/devlink.c | 11 +++++++++++ 1 file changed, 11 insertions(+) accumulated error probability: 0.00 culprit signature: 3f6cdd35fd639cf086c56659634d070558c3c1c6509745eee1c9439dbf9b50f5 parent signature: c62e35924a5fec72555b9f95f34d9313111bc0f8a61a4c9dcdd03556452a69a4 reproducer is flaky (0.35 repro chance estimate) revisions tested: 31, total time: 10h56m41.742998029s (build: 5h43m25.046679924s, test: 4h56m0.16298284s) first bad commit: c2368b19807affd7621f7c4638cd2e17fec13021 net: devlink: introduce "unregistering" mark and use it during devlinks iteration recipients (to): ["davem@davemloft.net" "davem@davemloft.net" "edumazet@google.com" "jiri@nvidia.com" "jiri@nvidia.com" "kuba@kernel.org" "netdev@vger.kernel.org" "pabeni@redhat.com"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 2643 jiffies s: 877 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Task dump for CPU 0: task:syz-executor.4 state:R running task stack:25712 pid: 2119 ppid: 2111 flags:0x00000008 Call Trace: