ci starts bisection 2024-07-11 01:17:37.829726963 +0000 UTC m=+117.233236783 bisecting fixing commit since fe46a7dd189e25604716c03576d05ac8a5209743 building syzkaller on ca620dd8f97f5b3a9134b687b5584203019518fb ensuring issue is reproducible on original commit fe46a7dd189e25604716c03576d05ac8a5209743 testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d02adb2c31ed37843a584d21023d99de2172839604f95d2a94267e2febbcf81 run #0: crashed: INFO: rcu detected stall in sys_unlink run #1: crashed: INFO: rcu detected stall in sys_symlinkat run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in sys_openat run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in sock_close run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in smp_call_function run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #11: crashed: INFO: rcu detected stall in sys_symlinkat run #12: crashed: INFO: rcu detected stall in worker_thread run #13: crashed: INFO: rcu detected stall in seq_read_iter run #14: crashed: INFO: rcu detected stall in do_vmi_munmap run #15: crashed: INFO: rcu detected stall in sys_unlinkat run #16: crashed: INFO: rcu detected stall in sys_mprotect run #17: crashed: INFO: rcu detected stall in sys_exit_group run #18: crashed: INFO: rcu detected stall in file_free run #19: crashed: INFO: rcu detected stall in refill_obj_stock representative crash: INFO: rcu detected stall in sys_unlink, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3c447f6b7e00190c9f2c12894b09d5b5d75ccca93f0405173490c45fd93ad9ad run #0: crashed: INFO: rcu detected stall in sys_exit_group run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in validate_mm run #3: crashed: INFO: rcu detected stall in sys_getdents64 run #4: crashed: INFO: rcu detected stall in pipe_read run #5: crashed: INFO: rcu detected stall in sys_newfstatat run #6: crashed: INFO: rcu detected stall in sys_mkdirat run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in worker_thread run #9: crashed: INFO: rcu detected stall in worker_thread representative crash: INFO: rcu detected stall in sys_exit_group, types: [HANG] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=4001 full=7986 leaves diff=2010 split chunks (needed=false): <2010> split chunk #0 of len 2010 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1dacba363ec1d3123f7d924e74831ffff8489713476ad1f0b677a79303b7b56 run #0: crashed: INFO: rcu detected stall in sys_unlink run #1: crashed: INFO: rcu detected stall in sys_getsockopt run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in sys_getsockopt run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in worker_thread run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in worker_thread run #8: crashed: INFO: rcu detected stall in sys_exit_group run #9: crashed: INFO: rcu detected stall in nf_setsockopt representative crash: INFO: rcu detected stall in sys_unlink, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46ffa7691c21445392ad1424b6711a0c161c62a0ff862f4ea24f7e7e5a4ce260 run #0: crashed: INFO: rcu detected stall in sys_unlink run #1: crashed: INFO: rcu detected stall in worker_thread run #2: crashed: INFO: rcu detected stall in security_file_open run #3: crashed: INFO: rcu detected stall in sys_execve run #4: crashed: INFO: rcu detected stall in sys_symlinkat run #5: crashed: INFO: rcu detected stall in sys_mkdirat run #6: crashed: INFO: rcu detected stall in sys_symlinkat run #7: crashed: INFO: rcu detected stall in sys_close run #8: crashed: INFO: rcu detected stall in sys_newfstatat run #9: crashed: INFO: rcu detected stall in sys_openat representative crash: INFO: rcu detected stall in sys_unlink, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5e74426d0c15f56eefbc57ade4d50276509a4a57e684a81296931b622b223200 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfe8b85915da140e45df77a592cd5cfb7a4f80688f9d311cefcc76af0dead23d run #0: crashed: INFO: rcu detected stall in sys_execve run #1: crashed: INFO: rcu detected stall in validate_mm run #2: crashed: INFO: rcu detected stall in sys_exit_group run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #5: crashed: INFO: rcu detected stall in worker_thread run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in sys_newfstatat run #8: crashed: INFO: rcu detected stall in sys_socket run #9: crashed: INFO: rcu detected stall in sys_openat representative crash: INFO: rcu detected stall in sys_execve, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0dac3e7045785e7adb63b33fc6dc737da444215e180311bf8b7cae54943e04e run #0: crashed: INFO: rcu detected stall in security_file_permission run #1: crashed: INFO: rcu detected stall in sys_clone run #2: crashed: INFO: rcu detected stall in sys_symlinkat run #3: crashed: INFO: rcu detected stall in sys_mkdirat run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #5: crashed: INFO: rcu detected stall in sys_mkdirat run #6: crashed: INFO: rcu detected stall in sys_clone run #7: crashed: INFO: rcu detected stall in sock_close run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in sys_clone representative crash: INFO: rcu detected stall in security_file_permission, types: [HANG] the chunk can be dropped minimized to 402 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB_CORE HAMRADIO HAVE_KVM HSR IMA IMA_APPRAISE IMA_APPRAISE_MODSIG INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_SIGNATURE 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_COMMON KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_GENERIC_HARDWARE_ENABLING KVM_GENERIC_MEMORY_ATTRIBUTES KVM_GENERIC_MMU_NOTIFIER KVM_GENERIC_PRIVATE_MEM KVM_HYPERV KVM_MMIO KVM_PRIVATE_MEM KVM_PROVE_MMU KVM_SW_PROTECTED_VM 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 LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB 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 MODULE_SIG_SHA256 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_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_V2 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_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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 9d9a2f29aefdadc86e450308ff056017a209c755 testing commit 9d9a2f29aefdadc86e450308ff056017a209c755 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1dcd9ab04dc89a47bc9074b648bdb9c45958eb3a913eaaab2bce89594feebd6 all runs: OK false negative chance: 0.000 # git bisect start 9d9a2f29aefdadc86e450308ff056017a209c755 fe46a7dd189e25604716c03576d05ac8a5209743 Bisecting: 11242 revisions left to test after this (roughly 13 steps) [b850dc206a57ae272c639e31ac202ec0c2f46960] Merge tag 'firewire-updates-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 determine whether the revision contains the guilty commit revision fe46a7dd189e25604716c03576d05ac8a5209743 crashed and is reachable testing commit b850dc206a57ae272c639e31ac202ec0c2f46960 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 34acc11ed49353a344ada33957d08e6c6727770d89f1ab9cc61ea6510e40d6f4 run #0: crashed: INFO: rcu detected stall in sys_openat run #1: crashed: INFO: rcu detected stall in sys_getdents64 run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in sys_openat run #5: crashed: INFO: rcu detected stall in sys_epoll_wait run #6: crashed: INFO: rcu detected stall in sys_umount run #7: crashed: INFO: rcu detected stall in sys_socket run #8: crashed: INFO: rcu detected stall in sys_clone run #9: crashed: INFO: rcu detected stall in sys_newfstatat representative crash: INFO: rcu detected stall in sys_openat, types: [HANG] # git bisect good b850dc206a57ae272c639e31ac202ec0c2f46960 Bisecting: 5658 revisions left to test after this (roughly 13 steps) [ff9a79307f89563da6d841da8b7cc4a0afceb0e2] Merge tag 'kbuild-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild determine whether the revision contains the guilty commit revision fe46a7dd189e25604716c03576d05ac8a5209743 crashed and is reachable testing commit ff9a79307f89563da6d841da8b7cc4a0afceb0e2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c1d243862a60f787ada3eacffb79585323b5cfe7fa6dd92a4997a56e8c816257 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in sys_newfstatat run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in security_file_open run #4: crashed: INFO: rcu detected stall in sys_mkdirat run #5: crashed: INFO: rcu detected stall in sys_openat run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in sys_openat representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good ff9a79307f89563da6d841da8b7cc4a0afceb0e2 Bisecting: 2787 revisions left to test after this (roughly 12 steps) [be81389c82e2c1ed0997629cb3d910f584666e33] Merge tag 'staging-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging determine whether the revision contains the guilty commit revision fe46a7dd189e25604716c03576d05ac8a5209743 crashed and is reachable testing commit be81389c82e2c1ed0997629cb3d910f584666e33 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4856cb55582a6521670e249f3b80cf6726a1b7bd8afe5f8391b54c6809b94fd9 run #0: crashed: INFO: rcu detected stall in sys_openat run #1: crashed: INFO: rcu detected stall in sys_sendmsg run #2: crashed: INFO: rcu detected stall in corrupted 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 do_idle run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #8: crashed: INFO: rcu detected stall in sys_getsockopt run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in sys_openat, types: [HANG] # git bisect good be81389c82e2c1ed0997629cb3d910f584666e33 Bisecting: 1393 revisions left to test after this (roughly 11 steps) [70b3c88cec7eed6080c8c37f0d2cc4bc46c08852] Merge branch 'mptcp-various-fixes' determine whether the revision contains the guilty commit revision ff9a79307f89563da6d841da8b7cc4a0afceb0e2 crashed and is reachable testing commit 70b3c88cec7eed6080c8c37f0d2cc4bc46c08852 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 106c70adcb98b6059664bddc1b01a16c99f2a6051e3972c0265d76b9261f18ec all runs: OK false negative chance: 0.000 # git bisect bad 70b3c88cec7eed6080c8c37f0d2cc4bc46c08852 Bisecting: 688 revisions left to test after this (roughly 10 steps) [56fb6f92854f29dcb6c3dc3ba92eeda1b615e88c] Merge tag 'drm-next-2024-05-25' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision fe46a7dd189e25604716c03576d05ac8a5209743 crashed and is reachable testing commit 56fb6f92854f29dcb6c3dc3ba92eeda1b615e88c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d63c5f86b80fbf46f65fef2abe18004be604cb69d678504ba11cc3769450fec run #0: crashed: INFO: rcu detected stall in security_file_open run #1: crashed: INFO: rcu detected stall in sys_socket run #2: crashed: INFO: rcu detected stall in security_file_open run #3: crashed: INFO: rcu detected stall in sys_newfstatat run #4: crashed: INFO: rcu detected stall in sys_newfstatat run #5: crashed: INFO: rcu detected stall in security_file_open run #6: crashed: INFO: rcu detected stall in sys_openat run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in sys_socket representative crash: INFO: rcu detected stall in security_file_open, types: [HANG] # git bisect good 56fb6f92854f29dcb6c3dc3ba92eeda1b615e88c Bisecting: 344 revisions left to test after this (roughly 9 steps) [b7087cb35a007245de172b0e05130d56f56248d5] Merge tag 'mailbox-fixes-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox determine whether the revision contains the guilty commit revision be81389c82e2c1ed0997629cb3d910f584666e33 crashed and is reachable testing commit b7087cb35a007245de172b0e05130d56f56248d5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e5fe480a1cb4aa701636da66cb338f5d3759a82cd3e9eecb98e40329a3d565f all runs: OK false negative chance: 0.000 # git bisect bad b7087cb35a007245de172b0e05130d56f56248d5 Bisecting: 189 revisions left to test after this (roughly 8 steps) [310fa3ec2859f1c094e6e9b5d2e1ca51738c409a] ALSA: seq: ump: Fix swapped song position pointer data determine whether the revision contains the guilty commit revision b850dc206a57ae272c639e31ac202ec0c2f46960 crashed and is reachable testing commit 310fa3ec2859f1c094e6e9b5d2e1ca51738c409a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 21729eda7f7e40000fe457e391df8e23b93404c20ad305596ca03b6f18f9f127 run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in sys_newfstatat run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in sys_openat run #4: crashed: INFO: rcu detected stall in mmap_region run #5: crashed: INFO: rcu detected stall in sys_exit_group run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in kernfs_fop_write_iter run #9: crashed: INFO: rcu detected stall in sys_unlink representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, types: [HANG] # git bisect good 310fa3ec2859f1c094e6e9b5d2e1ca51738c409a Bisecting: 85 revisions left to test after this (roughly 7 steps) [d8ec19857b095b39d114ae299713bd8ea6c1e66a] Merge tag 'net-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision ff9a79307f89563da6d841da8b7cc4a0afceb0e2 crashed and is reachable testing commit d8ec19857b095b39d114ae299713bd8ea6c1e66a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 574de0a917b5b80a4913f961ddfa75eee31da12ab5e9472c9f3fc587a1cb65cf all runs: OK false negative chance: 0.000 # git bisect bad d8ec19857b095b39d114ae299713bd8ea6c1e66a Bisecting: 51 revisions left to test after this (roughly 6 steps) [4b4647add7d3c8530493f7247d11e257ee425bf0] sock_map: avoid race between sock_map_close and sk_psock_put determine whether the revision contains the guilty commit revision ff9a79307f89563da6d841da8b7cc4a0afceb0e2 crashed and is reachable testing commit 4b4647add7d3c8530493f7247d11e257ee425bf0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 19cff1d23dcdd91f99cfbb7660d6731e9cdd4a3f97ebe7f97795a45d5fb8f45f run #0: crashed: INFO: rcu detected stall in sys_newfstatat run #1: crashed: INFO: rcu detected stall in sys_getdents64 run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in sys_getsockopt run #4: crashed: INFO: rcu detected stall in security_file_open run #5: crashed: INFO: rcu detected stall in sys_socket run #6: crashed: INFO: rcu detected stall in sys_clone run #7: crashed: INFO: rcu detected stall in sys_unlink run #8: crashed: INFO: rcu detected stall in sys_clone run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in sys_newfstatat, types: [HANG] # git bisect good 4b4647add7d3c8530493f7247d11e257ee425bf0 Bisecting: 25 revisions left to test after this (roughly 5 steps) [397a83ab978553ca2970ad1ccdbac0cdc732efd9] Merge tag '9p-for-6.10-rc2' of https://github.com/martinetd/linux determine whether the revision contains the guilty commit revision fe46a7dd189e25604716c03576d05ac8a5209743 crashed and is reachable testing commit 397a83ab978553ca2970ad1ccdbac0cdc732efd9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d15a6699bfaa88285ffbd284ff3a2b578a4fb485b03c651b8b830bfc0a33374d run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in sys_openat run #2: crashed: INFO: rcu detected stall in sys_newfstatat run #3: crashed: INFO: rcu detected stall in sys_newfstatat run #4: crashed: INFO: rcu detected stall in sys_newfstatat run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in sys_futex run #7: crashed: INFO: rcu detected stall in sys_newfstatat run #8: crashed: INFO: rcu detected stall in sys_getsockopt run #9: crashed: INFO: rcu detected stall in handle_softirqs representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 397a83ab978553ca2970ad1ccdbac0cdc732efd9 Bisecting: 12 revisions left to test after this (roughly 4 steps) [a51c9b1c9ab2351e62933357fcad5bfad27f2400] ice: check for unregistering correct number of devlink params determine whether the revision contains the guilty commit revision b850dc206a57ae272c639e31ac202ec0c2f46960 crashed and is reachable testing commit a51c9b1c9ab2351e62933357fcad5bfad27f2400 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0dc0b9a9a73a35e8e47789f28e111e1f5cdabf2899cf3393beba7e5285173ad all runs: OK false negative chance: 0.000 # git bisect bad a51c9b1c9ab2351e62933357fcad5bfad27f2400 Bisecting: 6 revisions left to test after this (roughly 3 steps) [92f1655aa2b2294d0b49925f3b875a634bd3b59e] net: fix __dst_negative_advice() race determine whether the revision contains the guilty commit revision 4b4647add7d3c8530493f7247d11e257ee425bf0 crashed and is reachable testing commit 92f1655aa2b2294d0b49925f3b875a634bd3b59e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53718a409935504ba2f4415ee4f2b209becdad13120c01f6a9ca4593cf1d3745 all runs: OK false negative chance: 0.000 # git bisect bad 92f1655aa2b2294d0b49925f3b875a634bd3b59e Bisecting: 2 revisions left to test after this (roughly 2 steps) [fb66df20a7201e60f2b13d7f95d031b31a8831d3] net/sched: taprio: extend minimum interval restriction to entire cycle too determine whether the revision contains the guilty commit revision b850dc206a57ae272c639e31ac202ec0c2f46960 crashed and is reachable testing commit fb66df20a7201e60f2b13d7f95d031b31a8831d3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7aa4040715df83a771a5bff8ade8c3c0f75f5bb32ffc4d203e0eaa9728c430d9 all runs: OK false negative chance: 0.000 # git bisect bad fb66df20a7201e60f2b13d7f95d031b31a8831d3 Bisecting: 0 revisions left to test after this (roughly 1 step) [e634134180885574d1fe7aa162777ba41e7fcd5b] net/sched: taprio: make q->picos_per_byte available to fill_sched_entry() determine whether the revision contains the guilty commit revision b850dc206a57ae272c639e31ac202ec0c2f46960 crashed and is reachable testing commit e634134180885574d1fe7aa162777ba41e7fcd5b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7f3fce8fae9bc962e4589c6597565348fef26bc08171c20d6c598a058d10b92b run #0: crashed: INFO: rcu detected stall in sys_clock_nanosleep run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in sys_unlink run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in sys_epoll_pwait run #6: crashed: INFO: rcu detected stall in __fsnotify_parent run #7: crashed: INFO: rcu detected stall in sys_mkdirat run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in sys_symlinkat representative crash: INFO: rcu detected stall in sys_clock_nanosleep, types: [HANG] # git bisect good e634134180885574d1fe7aa162777ba41e7fcd5b fb66df20a7201e60f2b13d7f95d031b31a8831d3 is the first bad commit commit fb66df20a7201e60f2b13d7f95d031b31a8831d3 Author: Vladimir Oltean Date: Mon May 27 18:39:55 2024 +0300 net/sched: taprio: extend minimum interval restriction to entire cycle too It is possible for syzbot to side-step the restriction imposed by the blamed commit in the Fixes: tag, because the taprio UAPI permits a cycle-time different from (and potentially shorter than) the sum of entry intervals. We need one more restriction, which is that the cycle time itself must be larger than N * ETH_ZLEN bit times, where N is the number of schedule entries. This restriction needs to apply regardless of whether the cycle time came from the user or was the implicit, auto-calculated value, so we move the existing "cycle == 0" check outside the "if "(!new->cycle_time)" branch. This way covers both conditions and scenarios. Add a selftest which illustrates the issue triggered by syzbot. Fixes: b5b73b26b3ca ("taprio: Fix allowing too small intervals") Reported-by: syzbot+a7d2b1d5d1af83035567@syzkaller.appspotmail.com Closes: https://lore.kernel.org/netdev/0000000000007d66bc06196e7c66@google.com/ Signed-off-by: Vladimir Oltean Link: https://lore.kernel.org/r/20240527153955.553333-2-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski net/sched/sch_taprio.c | 10 +++++----- .../tc-testing/tc-tests/qdiscs/taprio.json | 22 ++++++++++++++++++++++ 2 files changed, 27 insertions(+), 5 deletions(-) accumulated error probability: 0.00 culprit signature: 7aa4040715df83a771a5bff8ade8c3c0f75f5bb32ffc4d203e0eaa9728c430d9 parent signature: 7f3fce8fae9bc962e4589c6597565348fef26bc08171c20d6c598a058d10b92b revisions tested: 22, total time: 9h53m5.079126492s (build: 3h40m59.783277873s, test: 3h55m50.718349045s) first good commit: fb66df20a7201e60f2b13d7f95d031b31a8831d3 net/sched: taprio: extend minimum interval restriction to entire cycle too recipients (to): ["davem@davemloft.net" "edumazet@google.com" "jhs@mojatatu.com" "jiri@resnulli.us" "kuba@kernel.org" "kuba@kernel.org" "linux-kselftest@vger.kernel.org" "netdev@vger.kernel.org" "pabeni@redhat.com" "shuah@kernel.org" "vinicius.gomes@intel.com" "vladimir.oltean@nxp.com" "xiyou.wangcong@gmail.com"] recipients (cc): ["dcaratti@redhat.com" "linux-kernel@vger.kernel.org" "pctammela@mojatatu.com" "vladimir.oltean@nxp.com"]