ci2 starts bisection 2025-04-19 17:08:04.602485369 +0000 UTC m=+157331.764212433 bisecting fixing commit since 0a51d2d4527b43c5e467ffa6897deefeaf499358 building syzkaller on 689146651cb695ec7836080377ad32933a0b9bce ensuring issue is reproducible on original commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 testing commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c45b347e9124b66b4336d3d382cee7364650080111969b464392decd2e71e024 run #0: crashed: INFO: rcu detected stall in gc_worker run #1: crashed: INFO: rcu detected stall in gc_worker run #2: crashed: INFO: rcu detected stall in cleanup_net run #3: crashed: INFO: rcu detected stall in sys_syslog run #4: crashed: INFO: rcu detected stall in sys_execve 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 addrconf_dad_work run #8: crashed: INFO: rcu detected stall in sys_sendto run #9: crashed: INFO: rcu detected stall in sys_exit_group run #10: crashed: INFO: rcu detected stall in inet_rtm_newaddr run #11: crashed: INFO: rcu detected stall in batadv_nc_worker run #12: crashed: INFO: rcu detected stall in process_one_work run #13: crashed: INFO: rcu detected stall in linkwatch_event run #14: crashed: INFO: rcu detected stall in rtnl_newlink run #15: crashed: INFO: rcu detected stall in dput run #16: crashed: INFO: rcu detected stall in rtnl_newlink run #17: crashed: INFO: rcu detected stall in linkwatch_event run #18: crashed: no output from test machine run #19: crashed: no output from test machine representative crash: INFO: rcu detected stall in gc_worker, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b2f054f1967fd08d2765afe1aa2e3f8fd74d635d043fe0f06c24785176fa3f3 run #0: crashed: INFO: rcu detected stall in sys_execve run #1: crashed: INFO: rcu detected stall in gc_worker run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in sys_exit_group run #7: crashed: INFO: rcu detected stall in rtnl_newlink run #8: crashed: INFO: rcu detected stall in linkwatch_event run #9: crashed: INFO: rcu detected stall in linkwatch_event representative crash: INFO: rcu detected stall in sys_execve, types: [HANG] the bug reproduces without the instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed kconfig minimization: base=3705 full=7305 leaves diff=2039 split chunks (needed=false): <2039> split chunk #0 of len 2039 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 94a3b2ca157f811760dd0e5001911fcd927c39b42323a9ec16f58c123ae6992a run #0: crashed: INFO: rcu detected stall in wb_workfn run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in gc_worker run #3: crashed: INFO: rcu detected stall in sys_openat run #4: crashed: INFO: rcu detected stall in iterate_cleanup_work run #5: crashed: INFO: rcu detected stall in gc_worker run #6: crashed: INFO: rcu detected stall in linkwatch_event run #7: crashed: INFO: rcu detected stall in smp_call_function run #8: crashed: INFO: rcu detected stall in smp_call_function run #9: crashed: no output from test machine representative crash: INFO: rcu detected stall in wb_workfn, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bfad2ddf1f460ddb03e01136b9886707798353aa87fced247bbaa00bc04850a run #0: crashed: INFO: rcu detected stall in addrconf_dad_work run #1: crashed: INFO: rcu detected stall in sys_exit_group run #2: crashed: INFO: rcu detected stall in wb_workfn run #3: crashed: INFO: task hung in nsim_dev_trap_report_work run #4: crashed: INFO: rcu detected stall in iterate_cleanup_work run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in linkwatch_event run #7: crashed: BUG: soft lockup in sys_symlinkat run #8: crashed: INFO: rcu detected stall in security_file_open run #9: crashed: INFO: rcu detected stall in smp_call_function representative crash: INFO: rcu detected stall in addrconf_dad_work, 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 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d17bb3b38660c6c2d59380edc01f8cf14c168aa770c62fcf68c2785d44cc855c all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1fafb3260338e621caca645e112a092981a7dca50c5710d6d6337cdcb5866b59 run #0: crashed: INFO: rcu detected stall in wb_workfn run #1: crashed: INFO: rcu detected stall in addrconf_dad_work run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in cleanup_net run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: task hung in nsim_dev_trap_report_work run #6: crashed: INFO: task hung in nsim_dev_trap_report_work run #7: crashed: INFO: task hung in del_device_store run #8: crashed: INFO: task hung in nsim_dev_trap_report_work run #9: crashed: INFO: rcu detected stall in ieee80211_iface_work representative crash: INFO: rcu detected stall in wb_workfn, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 0a51d2d4527b43c5e467ffa6897deefeaf499358 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 015dac90848f3515770def7ea23cabc1ffca54bd6532d87a70db572877b2b27a run #0: crashed: INFO: rcu detected stall in inet_release run #1: crashed: BUG: soft lockup in smp_call_function run #2: crashed: INFO: rcu detected stall in do_dentry_open run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in ieee80211_iface_work run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: BUG: soft lockup in smp_call_function run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: BUG: soft lockup in gc_worker representative crash: INFO: rcu detected stall in inet_release, types: [HANG] the chunk can be dropped minimized to 408 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 IR_TOY 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_PXRC 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 LD_IS_BFD 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 MDIO_MVUSB 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 MOST_USB_HDM 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_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_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_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_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 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV VIDEO_V4L2 WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32] disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed determining the merge base between 0a51d2d4527b43c5e467ffa6897deefeaf499358 and 8560697b23dc2f405cb463af2b17256a9888129d 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: ceb264d5dfe84f49c7bc45889fff1db29dac1c993075468fb1b54b1164f67dee run #0: crashed: INFO: rcu detected stall in net_tx_action run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc 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 __do_munmap run #5: crashed: BUG: soft lockup in smp_call_function run #6: crashed: BUG: soft lockup in do_idle run #7: crashed: INFO: rcu detected stall in bpf_prog_free_deferred run #8: crashed: no output from test machine run #9: crashed: no output from test machine representative crash: INFO: rcu detected stall in net_tx_action, types: [HANG] testing current HEAD 8560697b23dc2f405cb463af2b17256a9888129d testing commit 8560697b23dc2f405cb463af2b17256a9888129d gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: f367b79cbcdce8c4e050543983bcb6af1a7b7ed8ddf80fb6dc2343667359c6ed all runs: OK false negative chance: 0.000 # git bisect start 8560697b23dc2f405cb463af2b17256a9888129d 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 153574 revisions left to test after this (roughly 17 steps) [56cbceab928d7ac3702de172ff8dcc1da2a6aaeb] Merge tag 'usb-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 56cbceab928d7ac3702de172ff8dcc1da2a6aaeb gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: aad8813cc665767b734f88c8caa79cc25764e0d9dc4d8b7d349b31a4ac0d5ca3 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in smp_call_function run #2: crashed: INFO: rcu detected stall in newfstatat run #3: crashed: INFO: rcu detected stall in sock_write_iter run #4: crashed: INFO: rcu detected stall in smp_call_function run #5: crashed: INFO: rcu detected stall in smp_call_function run #6: crashed: BUG: soft lockup in do_idle run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in vma_interval_tree_insert run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 56cbceab928d7ac3702de172ff8dcc1da2a6aaeb Bisecting: 76820 revisions left to test after this (roughly 16 steps) [6fd600d742744dc7ef7fc65ca26daa2b1163158a] Merge tag 'media/v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media determine whether the revision contains the guilty commit revision 56cbceab928d7ac3702de172ff8dcc1da2a6aaeb crashed and is reachable testing commit 6fd600d742744dc7ef7fc65ca26daa2b1163158a gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 509c05d2be4a6d2d3eeeb6c747c8cdc86fb1bd90a1a6f93f0f1e1cd793870c54 run #0: crashed: INFO: rcu detected stall in tc_modify_qdisc run #1: crashed: INFO: rcu detected stall in sys_exit_group 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 do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: BUG: soft lockup in do_idle run #7: crashed: INFO: rcu detected stall in worker_thread run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: BUG: soft lockup in do_idle representative crash: INFO: rcu detected stall in tc_modify_qdisc, types: [HANG] # git bisect good 6fd600d742744dc7ef7fc65ca26daa2b1163158a Bisecting: 38419 revisions left to test after this (roughly 15 steps) [131561f2ca075f3737c2b4821c4d067dfba0f55f] Merge tag 'gpio-updates-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 131561f2ca075f3737c2b4821c4d067dfba0f55f gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 9796d46b9a88c49b8ac8c2e22bd9496c2592d3f275a9d5b199d0f12bbbf62bc5 all runs: OK false negative chance: 0.000 # git bisect bad 131561f2ca075f3737c2b4821c4d067dfba0f55f Bisecting: 19200 revisions left to test after this (roughly 14 steps) [eb966e0c5f238ffeacc15543f1d25fb06a5100c2] Merge tag 'sound-fix-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision 56cbceab928d7ac3702de172ff8dcc1da2a6aaeb crashed and is reachable testing commit eb966e0c5f238ffeacc15543f1d25fb06a5100c2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 8d6e60d00d515fb1cfba1924f34a42ed1c47f905617821657996a90d6230e64f all runs: OK false negative chance: 0.000 # git bisect bad eb966e0c5f238ffeacc15543f1d25fb06a5100c2 Bisecting: 9989 revisions left to test after this (roughly 13 steps) [0434dbe32053d07d658165be681505120c6b1abc] Merge tag 'linux_kselftest-next-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 0434dbe32053d07d658165be681505120c6b1abc gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ddece67e8746dd72e5916391591b2f2553ec49e82e513dca4411560254263eeb all runs: OK false negative chance: 0.000 # git bisect bad 0434dbe32053d07d658165be681505120c6b1abc Bisecting: 4602 revisions left to test after this (roughly 12 steps) [cc8ed4d0a8486c7472cd72ec3c19957e509dc68c] Merge tag 'drm-fixes-2024-06-01' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit cc8ed4d0a8486c7472cd72ec3c19957e509dc68c gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 55ef9493e974c9f233bf71916107ac62d146b006e145153bb1614ce99a6696e5 all runs: OK false negative chance: 0.000 # git bisect bad cc8ed4d0a8486c7472cd72ec3c19957e509dc68c Bisecting: 2310 revisions left to test after this (roughly 11 steps) [fa8151cabfaa4166feeb6e8a4df428d7c3d9fecd] Merge tag 'keys-trusted-next-6.10-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd determine whether the revision contains the guilty commit revision 6fd600d742744dc7ef7fc65ca26daa2b1163158a crashed and is reachable testing commit fa8151cabfaa4166feeb6e8a4df428d7c3d9fecd gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: b366ca2d27f717e2bc2606d8bf49100203b8fa6609a4921cbecd754501e78aeb run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc run #2: crashed: INFO: rcu detected stall in rtnetlink_rcv_msg run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: task hung in rtnetlink_rcv_msg run #5: crashed: INFO: rcu detected stall in security_file_open run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: BUG: soft lockup in read run #8: crashed: BUG: soft lockup in do_idle run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect good fa8151cabfaa4166feeb6e8a4df428d7c3d9fecd Bisecting: 1196 revisions left to test after this (roughly 10 steps) [f6b8e86b7a65495d3947a1d1fc22183c52f786f6] Merge tag 'tty-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty determine whether the revision contains the guilty commit revision 6fd600d742744dc7ef7fc65ca26daa2b1163158a crashed and is reachable testing commit f6b8e86b7a65495d3947a1d1fc22183c52f786f6 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: cd4a3d9b49d549692ab4ce1ea2e85eb544f395661d6807824075425723614192 run #0: crashed: INFO: rcu detected stall in sys_exit_group run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in smp_call_function run #3: crashed: BUG: soft lockup in do_idle run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: BUG: soft lockup in enqueue_hrtimer run #7: crashed: INFO: rcu detected stall in chrdev_open run #8: crashed: INFO: rcu detected stall in smp_call_function run #9: crashed: BUG: soft lockup in do_idle representative crash: INFO: rcu detected stall in sys_exit_group, types: [HANG] # git bisect good f6b8e86b7a65495d3947a1d1fc22183c52f786f6 Bisecting: 597 revisions left to test after this (roughly 9 steps) [66ad4829ddd0b5540dc0b076ef2818e89c8f720e] Merge tag 'net-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision f6b8e86b7a65495d3947a1d1fc22183c52f786f6 crashed and is reachable testing commit 66ad4829ddd0b5540dc0b076ef2818e89c8f720e gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 67a70c7e2e1a9d941094f412aec1271b7fdc4b0f7e32dd4b53d23442887db950 run #0: crashed: INFO: rcu detected stall in tc_modify_qdisc run #1: crashed: INFO: rcu detected stall in sys_exit_group run #2: crashed: INFO: rcu detected stall in sys_exit_group run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: BUG: soft lockup in smp_call_function run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in rtnetlink_rcv_msg run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: no output from test machine representative crash: INFO: rcu detected stall in tc_modify_qdisc, types: [HANG] # git bisect good 66ad4829ddd0b5540dc0b076ef2818e89c8f720e Bisecting: 296 revisions left to test after this (roughly 8 steps) [3a390f24b77328395cb7dfe05739889aff6897a6] Merge tag 'x86-urgent-2024-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 3a390f24b77328395cb7dfe05739889aff6897a6 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ced687d9a45b7c632998112c6a6132b9eb7535e6de2b3baa37bd7b81527d1c34 run #0: crashed: INFO: rcu detected stall in sock_close run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in sys_openat run #3: crashed: INFO: rcu detected stall in sys_execve run #4: crashed: BUG: soft lockup in __hrtimer_run_queues run #5: crashed: BUG: soft lockup in smp_call_function run #6: crashed: BUG: soft lockup in smp_call_function run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in sys_exit_group run #9: crashed: BUG: soft lockup in do_idle representative crash: INFO: rcu detected stall in sock_close, types: [HANG] # git bisect good 3a390f24b77328395cb7dfe05739889aff6897a6 Bisecting: 140 revisions left to test after this (roughly 7 steps) [ff9bce3d06fbdd12bcc74657516757b66aca9e43] Merge tag 'bcachefs-2024-05-30' of https://evilpiepirate.org/git/bcachefs determine whether the revision contains the guilty commit revision 6fd600d742744dc7ef7fc65ca26daa2b1163158a crashed and is reachable testing commit ff9bce3d06fbdd12bcc74657516757b66aca9e43 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: d9cc64206355c9cf16e10e51fb55ad883cc85cb525da452ea3dbf6e7ca7397e9 all runs: OK false negative chance: 0.000 # git bisect bad ff9bce3d06fbdd12bcc74657516757b66aca9e43 Bisecting: 79 revisions left to test after this (roughly 6 steps) [13c7c941e72908b8cce5a84b45a7b5e485ca12ed] netdev: add qstat for csum complete determine whether the revision contains the guilty commit revision 66ad4829ddd0b5540dc0b076ef2818e89c8f720e crashed and is reachable testing commit 13c7c941e72908b8cce5a84b45a7b5e485ca12ed gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: b53b1b193ed5a957b7b4b8644d48bef9714ff6a54ed3980f1d97137934ec20eb all runs: OK false negative chance: 0.000 # git bisect bad 13c7c941e72908b8cce5a84b45a7b5e485ca12ed Bisecting: 37 revisions left to test after this (roughly 5 steps) [0fe53c0ab018b3399b8d4be95f32fd017c9719e1] dt-bindings: net: pse-pd: microchip,pd692x0: Fix missing "additionalProperties" constraints determine whether the revision contains the guilty commit revision fa8151cabfaa4166feeb6e8a4df428d7c3d9fecd crashed and is reachable testing commit 0fe53c0ab018b3399b8d4be95f32fd017c9719e1 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 42d15e16fc6412fd685ec084fe0b37ed59e01a232cbfa93908eb819dd9e803cb run #0: crashed: INFO: rcu detected stall in sys_openat run #1: crashed: INFO: rcu detected stall in worker_thread run #2: crashed: INFO: rcu detected stall in sys_clone run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: rcu detected stall in security_file_open run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: BUG: soft lockup in sys_exit_group run #8: crashed: BUG: soft lockup in __hrtimer_run_queues run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in sys_openat, types: [HANG] # git bisect good 0fe53c0ab018b3399b8d4be95f32fd017c9719e1 Bisecting: 18 revisions left to test after this (roughly 4 steps) [068648aab72c9ba7b0597354ef4d81ffaac7b979] nfc/nci: Add the inconsistency check between the input data length and count determine whether the revision contains the guilty commit revision f6b8e86b7a65495d3947a1d1fc22183c52f786f6 crashed and is reachable testing commit 068648aab72c9ba7b0597354ef4d81ffaac7b979 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 0f322a7c65fd20e2b30f7197f8806eb72e3aa230210fe188bba2fd90ac6dab52 all runs: OK false negative chance: 0.000 # git bisect bad 068648aab72c9ba7b0597354ef4d81ffaac7b979 Bisecting: 9 revisions left to test after this (roughly 3 steps) [cc73a6577ae64247898269d138dee6b73ff710cc] selftests: mptcp: simult flows: mark 'unbalanced' tests as flaky determine whether the revision contains the guilty commit revision fa8151cabfaa4166feeb6e8a4df428d7c3d9fecd crashed and is reachable testing commit cc73a6577ae64247898269d138dee6b73ff710cc gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 1cf5ea47b08c286b5b647bbd60cae1580f0476384de9e67aa57451228c5f959f run #0: crashed: INFO: rcu detected stall in tc_modify_qdisc run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc run #2: crashed: INFO: rcu detected stall in worker_thread run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: BUG: soft lockup in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in sys_openat run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in rtnetlink_rcv_msg run #9: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode representative crash: INFO: rcu detected stall in tc_modify_qdisc, types: [HANG] # git bisect good cc73a6577ae64247898269d138dee6b73ff710cc Bisecting: 4 revisions left to test after this (roughly 2 steps) [4b4647add7d3c8530493f7247d11e257ee425bf0] sock_map: avoid race between sock_map_close and sk_psock_put determine whether the revision contains the guilty commit revision 6fd600d742744dc7ef7fc65ca26daa2b1163158a crashed and is reachable testing commit 4b4647add7d3c8530493f7247d11e257ee425bf0 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 74328615e117924adb66a5a746e684d7c5732887786cc5bcb956b17cdf96430b run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc 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 corrupted run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_vmi_munmap run #7: crashed: BUG: soft lockup in worker_thread run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 4b4647add7d3c8530493f7247d11e257ee425bf0 Bisecting: 2 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 cc73a6577ae64247898269d138dee6b73ff710cc crashed and is reachable testing commit e634134180885574d1fe7aa162777ba41e7fcd5b gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 35081da98493ddd4f042c9a5d238d9f4462debc1c4ecf4103c57e178f4d3dea2 all runs: OK false negative chance: 0.000 # git bisect bad e634134180885574d1fe7aa162777ba41e7fcd5b Bisecting: 0 revisions left to test after this (roughly 0 steps) [56a5cf538c3f2d935b0d81040a8303b6e7fc5fd8] net: ti: icssg-prueth: Fix start counter for ft1 filter determine whether the revision contains the guilty commit revision fa8151cabfaa4166feeb6e8a4df428d7c3d9fecd crashed and is reachable testing commit 56a5cf538c3f2d935b0d81040a8303b6e7fc5fd8 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 8030d3bf071252fd8565d2e9b8fc5b696941f449c09f59be9792651d17481caf run #0: crashed: INFO: rcu detected stall in sys_exit_group run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: BUG: soft lockup in debug_check_no_obj_freed run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in sys_sendto run #6: crashed: INFO: rcu detected stall in smp_call_function run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: BUG: soft lockup in sys_unshare run #9: crashed: BUG: soft lockup in do_idle representative crash: INFO: rcu detected stall in sys_exit_group, types: [HANG] # git bisect good 56a5cf538c3f2d935b0d81040a8303b6e7fc5fd8 e634134180885574d1fe7aa162777ba41e7fcd5b is the first bad commit commit e634134180885574d1fe7aa162777ba41e7fcd5b Author: Vladimir Oltean Date: Mon May 27 18:39:54 2024 +0300 net/sched: taprio: make q->picos_per_byte available to fill_sched_entry() In commit b5b73b26b3ca ("taprio: Fix allowing too small intervals"), a comparison of user input against length_to_duration(q, ETH_ZLEN) was introduced, to avoid RCU stalls due to frequent hrtimers. The implementation of length_to_duration() depends on q->picos_per_byte being set for the link speed. The blamed commit in the Fixes: tag has moved this too late, so the checks introduced above are ineffective. The q->picos_per_byte is zero at parse_taprio_schedule() -> parse_sched_list() -> parse_sched_entry() -> fill_sched_entry() time. Move the taprio_set_picos_per_byte() call as one of the first things in taprio_change(), before the bulk of the netlink attribute parsing is done. That's because it is needed there. Add a selftest to make sure the issue doesn't get reintroduced. Fixes: 09dbdf28f9f9 ("net/sched: taprio: fix calculation of maximum gate durations") Signed-off-by: Vladimir Oltean Reviewed-by: Eric Dumazet Link: https://lore.kernel.org/r/20240527153955.553333-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski net/sched/sch_taprio.c | 4 +++- .../tc-testing/tc-tests/qdiscs/taprio.json | 22 ++++++++++++++++++++++ 2 files changed, 25 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 35081da98493ddd4f042c9a5d238d9f4462debc1c4ecf4103c57e178f4d3dea2 parent signature: 8030d3bf071252fd8565d2e9b8fc5b696941f449c09f59be9792651d17481caf revisions tested: 27, total time: 8h37m57.018227968s (build: 2h54m16.848322874s, test: 5h28m20.456237862s) first good commit: e634134180885574d1fe7aa162777ba41e7fcd5b net/sched: taprio: make q->picos_per_byte available to fill_sched_entry() recipients (to): ["edumazet@google.com" "kuba@kernel.org" "vladimir.oltean@nxp.com"] recipients (cc): []