ci starts bisection 2024-07-27 04:29:50.552629261 +0000 UTC m=+19893.546694348 bisecting fixing commit since 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a building syzkaller on 3ad490ea48468e50fe91f6f6b2ca4cbc74d924bf ensuring issue is reproducible on original commit 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a testing commit 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd82d075223c39abc64372db65a453cfe54ca0c3a4870786b47d5b0653e8de86 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 tc_modify_qdisc run #3: crashed: INFO: rcu detected stall in __do_softirq run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc run #5: crashed: INFO: rcu detected stall in debug_check_no_obj_freed run #6: crashed: INFO: rcu detected stall in tc_modify_qdisc run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc run #10: crashed: INFO: rcu detected stall in tc_modify_qdisc run #11: crashed: INFO: rcu detected stall in tc_modify_qdisc run #12: crashed: INFO: rcu detected stall in tc_modify_qdisc run #13: crashed: INFO: rcu detected stall in tc_modify_qdisc run #14: crashed: INFO: rcu detected stall in tc_modify_qdisc run #15: crashed: INFO: rcu detected stall in tc_modify_qdisc run #16: crashed: INFO: rcu detected stall in tc_modify_qdisc run #17: crashed: INFO: rcu detected stall in tc_modify_qdisc run #18: crashed: INFO: rcu detected stall in tc_modify_qdisc run #19: crashed: INFO: rcu detected stall in do_vmi_munmap representative crash: INFO: rcu detected stall in tc_modify_qdisc, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f2c49bd0ebc849af85f5192f6d6535781640cbc71757581ebc7cc6d21f40c6ae run #0: crashed: INFO: rcu detected stall in __run_timers run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in worker_thread run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in tc_modify_qdisc run #6: crashed: INFO: rcu detected stall in rtnetlink_rcv_msg run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in tc_modify_qdisc run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in __run_timers, 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=7658 leaves diff=2017 split chunks (needed=false): <2017> split chunk #0 of len 2017 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 917e18911a5e71c54df0ceedee49b5b5ef3b723cfc91885a69372a1455bccadf run #0: crashed: INFO: rcu detected stall in sys_sendmsg run #1: crashed: INFO: rcu detected stall in sys_futex run #2: crashed: INFO: rcu detected stall in sys_futex run #3: crashed: INFO: rcu detected stall in netdev_run_todo run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc run #5: crashed: INFO: rcu detected stall in __do_softirq run #6: crashed: INFO: rcu detected stall in sys_sendmsg 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 sys_sendmsg representative crash: INFO: rcu detected stall in sys_sendmsg, 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 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25351cf1943a5f732318bccd0d450d3cbdc3ad5eb9fc822d9eafed04501b0090 run #0: crashed: INFO: rcu detected stall in sys_sendmsg run #1: crashed: INFO: rcu detected stall in sys_futex run #2: crashed: INFO: rcu detected stall in sys_sendmsg run #3: crashed: INFO: rcu detected stall in call_timer_fn run #4: crashed: INFO: rcu detected stall in worker_thread run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in net_tx_action run #8: crashed: INFO: rcu detected stall in netdev_run_todo run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in sys_sendmsg, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b441c3e16cb56e7ccb92a1f11ece87987a16154b74787ad36e6ae2609cd5e8f 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 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 35da7b0ca0bd54537e9729f7a74d2bb6dcfa24d427bf6dec3fc776f42ce8b7ee run #0: crashed: INFO: rcu detected stall in worker_thread run #1: crashed: INFO: rcu detected stall in worker_thread run #2: crashed: INFO: rcu detected stall in schedule_timeout run #3: crashed: INFO: rcu detected stall in worker_thread 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 tc_modify_qdisc run #7: crashed: INFO: rcu detected stall in syscall_enter_from_user_mode run #8: crashed: INFO: rcu detected stall in tc_modify_qdisc run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in worker_thread, 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 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4836618190e16fabbe992b2e321e1a3b72a4e39079b1d1bdf89000893cca2ea7 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in put_cpu_partial run #2: crashed: INFO: rcu detected stall in do_idle 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 corrupted run #6: crashed: INFO: rcu detected stall in __sk_destruct run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in tc_modify_qdisc run #9: crashed: INFO: rcu detected stall in __do_softirq representative crash: INFO: rcu detected stall in do_idle, types: [HANG] the chunk can be dropped minimized to 404 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CC_IS_GCC CFG80211 CHECKPOINT_RESTORE DVB_CORE FB_CORE FSCACHE 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_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_NQ 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_PROVE_MMU 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_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 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_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_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_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 3a7e02c040b130b5545e4b115aada7bacd80a2b6 testing commit 3a7e02c040b130b5545e4b115aada7bacd80a2b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea5a9ca552adf999bb53019de2b1046a83e4ca6d0282550fbc808bf41078dfe2 all runs: OK false negative chance: 0.000 # git bisect start 3a7e02c040b130b5545e4b115aada7bacd80a2b6 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a Bisecting: 29553 revisions left to test after this (roughly 15 steps) [50108c352db70405b3d71d8099d0b3adc3b3352c] Merge tag 'net-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a crashed and is reachable testing commit 50108c352db70405b3d71d8099d0b3adc3b3352c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3437958f8bcf01b3ea9873fc841080ad939751623ede91b1001c4085d2459627 run #0: crashed: INFO: rcu detected stall in __do_softirq run #1: crashed: INFO: rcu detected stall in free_unref_page run #2: crashed: INFO: rcu detected stall in debug_check_no_obj_freed run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: rcu detected stall in worker_thread run #5: crashed: INFO: rcu detected stall in netdev_run_todo run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in do_syscall_64 run #8: crashed: INFO: rcu detected stall in sys_futex run #9: crashed: INFO: rcu detected stall in dst_destroy representative crash: INFO: rcu detected stall in __do_softirq, types: [HANG] # git bisect good 50108c352db70405b3d71d8099d0b3adc3b3352c Bisecting: 14764 revisions left to test after this (roughly 14 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 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a 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: 35cdac3d416124056213091d43e443a28ebdba035857b1b641e7f03f2fdc8e63 all runs: OK false negative chance: 0.000 # git bisect bad d8ec19857b095b39d114ae299713bd8ea6c1e66a Bisecting: 7354 revisions left to test after this (roughly 13 steps) [1b294a1f35616977caddaddf3e9d28e576a1adbc] Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next determine whether the revision contains the guilty commit revision 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a crashed and is reachable testing commit 1b294a1f35616977caddaddf3e9d28e576a1adbc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d0bed630a60ea5365888c2b8ec7948b8e4d3c9500f7a92fb77d1ab7f74bc38a2 run #0: crashed: INFO: rcu detected stall in netdev_run_todo run #1: crashed: INFO: rcu detected stall in worker_thread run #2: crashed: INFO: rcu detected stall in schedule run #3: crashed: INFO: rcu detected stall in handle_softirqs run #4: crashed: INFO: rcu detected stall in worker_thread run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall 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: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in netdev_run_todo, types: [HANG] # git bisect good 1b294a1f35616977caddaddf3e9d28e576a1adbc Bisecting: 3670 revisions left to test after this (roughly 12 steps) [619b92b9c8fe5369503ae948ad4e0a9c195c2c4a] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux determine whether the revision contains the guilty commit revision 50108c352db70405b3d71d8099d0b3adc3b3352c crashed and is reachable testing commit 619b92b9c8fe5369503ae948ad4e0a9c195c2c4a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 87f14dfb5dfe2b5f557571fc7ce187e71d2b9128897e4348135cc5d841d7ade1 run #0: crashed: INFO: rcu detected stall in sys_futex run #1: crashed: INFO: rcu detected stall in sys_sendmsg run #2: crashed: INFO: rcu detected stall in do_syscall_64 run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: rcu detected stall in sys_futex run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in worker_thread representative crash: INFO: rcu detected stall in sys_futex, types: [HANG] # git bisect good 619b92b9c8fe5369503ae948ad4e0a9c195c2c4a Bisecting: 1834 revisions left to test after this (roughly 11 steps) [5499315668dae0e0935489075aadac4a91ff04ff] Merge tag 'efi-fixes-for-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi determine whether the revision contains the guilty commit revision 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a crashed and is reachable testing commit 5499315668dae0e0935489075aadac4a91ff04ff gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c86413f3261fd31e7e3ce5ae3fb99344a90d3e0b3d2eaf600ba43b873097562 run #0: crashed: INFO: rcu detected stall in sys_futex run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc run #2: crashed: INFO: rcu detected stall in sys_futex run #3: crashed: INFO: rcu detected stall in sys_futex run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in sys_futex run #6: crashed: INFO: rcu detected stall in tc_modify_qdisc run #7: crashed: INFO: rcu detected stall in do_syscall_64 run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in sys_futex, types: [HANG] # git bisect good 5499315668dae0e0935489075aadac4a91ff04ff Bisecting: 919 revisions left to test after this (roughly 10 steps) [d90be6e4aaf23cd4a2c202891399cbafe669aaab] Merge tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core determine whether the revision contains the guilty commit revision 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a crashed and is reachable testing commit d90be6e4aaf23cd4a2c202891399cbafe669aaab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9438d3634eb51c9eee25177a5695b93e5f0bdc22aa8da08284659d16bf06b85 run #0: crashed: INFO: rcu detected stall in sys_futex run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in sys_futex run #4: crashed: INFO: rcu detected stall in sys_futex run #5: crashed: INFO: rcu detected stall in netdev_run_todo run #6: crashed: INFO: rcu detected stall in do_syscall_64 run #7: crashed: INFO: rcu detected stall in ieee80211_tasklet_handler run #8: crashed: INFO: rcu detected stall in handle_softirqs run #9: crashed: INFO: rcu detected stall in worker_thread representative crash: INFO: rcu detected stall in sys_futex, types: [HANG] # git bisect good d90be6e4aaf23cd4a2c202891399cbafe669aaab Bisecting: 462 revisions left to test after this (roughly 9 steps) [404001ddf3e40369510a08b8b7e895c2da692b79] Merge tag 'trace-fixes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace determine whether the revision contains the guilty commit revision 619b92b9c8fe5369503ae948ad4e0a9c195c2c4a crashed and is reachable testing commit 404001ddf3e40369510a08b8b7e895c2da692b79 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5db1ddac4154af7ca4c596849af8793d1c101c12b70cf9eb0f7e7cbc9bfe8fd7 run #0: crashed: INFO: rcu detected stall in sys_futex 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 do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in handle_softirqs run #6: crashed: INFO: rcu detected stall in tc_modify_qdisc run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in worker_thread run #9: crashed: INFO: rcu detected stall in handle_softirqs representative crash: INFO: rcu detected stall in sys_futex, types: [HANG] # git bisect good 404001ddf3e40369510a08b8b7e895c2da692b79 Bisecting: 228 revisions left to test after this (roughly 8 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 50108c352db70405b3d71d8099d0b3adc3b3352c 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: 6d04588c42729a5c26291fa1f94ec6e617ba25131528b1ccbcfc9b1f3c06dffa run #0: crashed: INFO: rcu detected stall in handle_softirqs run #1: crashed: INFO: rcu detected stall in worker_thread run #2: crashed: INFO: rcu detected stall in tc_modify_qdisc run #3: crashed: INFO: rcu detected stall in tc_modify_qdisc run #4: crashed: INFO: rcu detected stall in sys_futex run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in worker_thread run #7: crashed: INFO: rcu detected stall in worker_thread run #8: crashed: INFO: rcu detected stall in tc_modify_qdisc run #9: crashed: INFO: rcu detected stall in sys_futex representative crash: INFO: rcu detected stall in handle_softirqs, types: [HANG] # git bisect good 56fb6f92854f29dcb6c3dc3ba92eeda1b615e88c Bisecting: 112 revisions left to test after this (roughly 7 steps) [9b62e02e63363f5678d5598ee7372064301587f7] Merge tag 'mm-hotfixes-stable-2024-05-25-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision 56fb6f92854f29dcb6c3dc3ba92eeda1b615e88c crashed and is reachable testing commit 9b62e02e63363f5678d5598ee7372064301587f7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e9b3ccd313d4ff984b7fcc87f9a96b7e7bc256582ba7cf9946a477bcda06d10d run #0: crashed: INFO: rcu detected stall in sys_sendmsg run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc run #2: crashed: INFO: rcu detected stall in handle_softirqs run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in handle_softirqs run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in worker_thread run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in sys_sendmsg, types: [HANG] # git bisect good 9b62e02e63363f5678d5598ee7372064301587f7 Bisecting: 56 revisions left to test after this (roughly 6 steps) [e9022b31db80019025967b03df1d059433e9f26d] MAINTAINERS: dwmac: starfive: update Maintainer determine whether the revision contains the guilty commit revision 50108c352db70405b3d71d8099d0b3adc3b3352c crashed and is reachable testing commit e9022b31db80019025967b03df1d059433e9f26d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7490d592e2aaa6b44f6ca17bfac09c04b35744601b0332349927b5611fa7e346 all runs: OK false negative chance: 0.000 # git bisect bad e9022b31db80019025967b03df1d059433e9f26d Bisecting: 21 revisions left to test after this (roughly 5 steps) [2786ae339ef504f480753b54219b65471aaf98e8] Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf determine whether the revision contains the guilty commit revision 50108c352db70405b3d71d8099d0b3adc3b3352c crashed and is reachable testing commit 2786ae339ef504f480753b54219b65471aaf98e8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6823839b487102dc3a3f33efa49ee29657432b93bdbc3545c7501b32da7c10fd run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in handle_softirqs run #2: crashed: INFO: rcu detected stall in worker_thread run #3: crashed: INFO: rcu detected stall in tc_modify_qdisc run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in sys_futex run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in handle_softirqs run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect good 2786ae339ef504f480753b54219b65471aaf98e8 Bisecting: 10 revisions left to test after this (roughly 4 steps) [7a8cc96ebefaab3db0477a54b217214ad70990d1] Merge branch 'intel-wired-lan-driver-updates-2024-05-23-ice-idpf' determine whether the revision contains the guilty commit revision 5499315668dae0e0935489075aadac4a91ff04ff crashed and is reachable testing commit 7a8cc96ebefaab3db0477a54b217214ad70990d1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ee39a7bf43cc63d9ee767e05bef2736a80572090aeeb82804991124da7386d5 run #0: crashed: INFO: rcu detected stall in worker_thread 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 worker_thread run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc run #5: crashed: INFO: rcu detected stall in handle_softirqs run #6: crashed: INFO: rcu detected stall in sys_futex run #7: crashed: INFO: rcu detected stall in handle_softirqs run #8: crashed: INFO: rcu detected stall in handle_softirqs run #9: crashed: INFO: rcu detected stall in sys_futex representative crash: INFO: rcu detected stall in worker_thread, types: [HANG] # git bisect good 7a8cc96ebefaab3db0477a54b217214ad70990d1 Bisecting: 5 revisions left to test after this (roughly 3 steps) [6e15774d92056f7e4d226b2fc758124a6c803f99] Merge branch 'selftests-mptcp-mark-unstable-subtests-as-flaky' determine whether the revision contains the guilty commit revision 1b294a1f35616977caddaddf3e9d28e576a1adbc crashed and is reachable testing commit 6e15774d92056f7e4d226b2fc758124a6c803f99 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d3a8abfb47759f8ddbb8050b3625c5c23ff088562a0578a23d6429b4b1765bf7 run #0: crashed: INFO: rcu detected stall in worker_thread run #1: crashed: INFO: rcu detected stall in module_put run #2: crashed: INFO: rcu detected stall in tc_modify_qdisc run #3: crashed: INFO: rcu detected stall in handle_softirqs run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in schedule_timeout run #7: crashed: INFO: rcu detected stall in tc_modify_qdisc run #8: crashed: INFO: rcu detected stall in worker_thread run #9: crashed: INFO: rcu detected stall in tc_modify_qdisc representative crash: INFO: rcu detected stall in worker_thread, types: [HANG] # git bisect good 6e15774d92056f7e4d226b2fc758124a6c803f99 Bisecting: 2 revisions left to test after this (roughly 2 steps) [56a5cf538c3f2d935b0d81040a8303b6e7fc5fd8] net: ti: icssg-prueth: Fix start counter for ft1 filter determine whether the revision contains the guilty commit revision 2786ae339ef504f480753b54219b65471aaf98e8 crashed and is reachable testing commit 56a5cf538c3f2d935b0d81040a8303b6e7fc5fd8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01c32b313f41c513c0ac80c029fe74b9deccac97ff13ed515ec1ee98be260b87 run #0: crashed: INFO: rcu detected stall in handle_softirqs run #1: crashed: INFO: rcu detected stall in sys_futex run #2: crashed: INFO: rcu detected stall in handle_softirqs run #3: crashed: INFO: rcu detected stall in sys_futex run #4: crashed: INFO: rcu detected stall in handle_softirqs run #5: crashed: INFO: rcu detected stall in handle_softirqs run #6: crashed: INFO: rcu detected stall in worker_thread run #7: crashed: INFO: rcu detected stall in sys_syslog run #8: crashed: INFO: rcu detected stall in worker_thread run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in handle_softirqs, types: [HANG] # git bisect good 56a5cf538c3f2d935b0d81040a8303b6e7fc5fd8 Bisecting: 0 revisions left to test after this (roughly 1 step) [fb66df20a7201e60f2b13d7f95d031b31a8831d3] net/sched: taprio: extend minimum interval restriction to entire cycle too determine whether the revision contains the guilty commit revision 50108c352db70405b3d71d8099d0b3adc3b3352c 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: 660cdb74de94f54d8a5b09032c4b1dccb76580fed2f31ea2ef58ee93593bc486 all runs: OK false negative chance: 0.000 # git bisect bad fb66df20a7201e60f2b13d7f95d031b31a8831d3 Bisecting: 0 revisions left to test after this (roughly 0 steps) [e634134180885574d1fe7aa162777ba41e7fcd5b] net/sched: taprio: make q->picos_per_byte available to fill_sched_entry() determine whether the revision contains the guilty commit revision 6e15774d92056f7e4d226b2fc758124a6c803f99 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: a9bfa536e1d3995b0cab00e4f4048eba96df5ea0939c057c32638e3ffe7b5aae run #0: crashed: INFO: rcu detected stall in worker_thread run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in tc_modify_qdisc run #3: crashed: INFO: rcu detected stall in sys_futex run #4: crashed: INFO: rcu detected stall in sys_futex run #5: crashed: INFO: rcu detected stall in sys_futex run #6: crashed: INFO: rcu detected stall in worker_thread 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 do_idle representative crash: INFO: rcu detected stall in worker_thread, 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: 660cdb74de94f54d8a5b09032c4b1dccb76580fed2f31ea2ef58ee93593bc486 parent signature: a9bfa536e1d3995b0cab00e4f4048eba96df5ea0939c057c32638e3ffe7b5aae revisions tested: 24, total time: 4h45m43.193730973s (build: 2h7m42.531710493s, test: 2h24m17.209016939s) 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"]