ci starts bisection 2024-09-14 05:11:47.918930127 +0000 UTC m=+48.096391535 bisecting fixing commit since 753c8608f3e579307493a63b9242667aee35a751 building syzkaller on f819d6f7cb99737851dcaaa51f11190138fd48d5 ensuring issue is reproducible on original commit 753c8608f3e579307493a63b9242667aee35a751 testing commit 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 237f2a293c593ecaf65cc12da7db9ffe0affb2da2c38ef25b799e0b82c00fddd 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 sys_rt_sigaction run #3: crashed: INFO: rcu detected stall in sys_clone run #4: crashed: INFO: rcu detected stall in kernfs_fop_release run #5: crashed: INFO: rcu detected stall in sys_clone run #6: crashed: INFO: rcu detected stall in sys_clone run #7: crashed: INFO: rcu detected stall in sys_clone run #8: crashed: INFO: rcu detected stall in sys_getsockopt run #9: crashed: INFO: rcu detected stall in blkdev_release run #10: crashed: INFO: rcu detected stall in sys_newfstatat run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in worker_thread run #13: crashed: INFO: rcu detected stall in sys_exit_group run #14: crashed: INFO: rcu detected stall in sys_execve run #15: crashed: INFO: rcu detected stall in security_file_open run #16: crashed: INFO: rcu detected stall in sys_exit_group run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in sys_readlink run #19: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in sys_exit_group, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b63e3ab635007a30a243fe6d49ab55bd2b03d46f564da47c8570b79e8e2a0a2d run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in sys_clone 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 worker_thread run #6: crashed: INFO: rcu detected stall in sys_exit_group run #7: crashed: INFO: rcu detected stall in worker_thread 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 corrupted, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4045 full=7654 leaves diff=2013 split chunks (needed=false): <2013> split chunk #0 of len 2013 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0a945797be7cbfe1838d3134ee87e23505453c8334b34f44b616183ee59326d run #0: crashed: INFO: rcu detected stall in do_vmi_munmap run #1: crashed: INFO: rcu detected stall in do_vmi_munmap run #2: crashed: INFO: rcu detected stall in sys_mprotect run #3: crashed: INFO: rcu detected stall in worker_thread run #4: crashed: INFO: rcu detected stall in sys_clone run #5: crashed: INFO: rcu detected stall in validate_mm run #6: crashed: INFO: rcu detected stall in sys_exit_group run #7: crashed: INFO: rcu detected stall in worker_thread run #8: crashed: INFO: rcu detected stall in worker_thread run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_vmi_munmap, 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 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 29e83a594222f87e028cd44ee3b4456c0407d2d77d370dd83d3ab84d7a1cec37 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in sys_exit_group run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in worker_thread run #5: crashed: INFO: rcu detected stall in worker_thread run #6: crashed: INFO: rcu detected stall in worker_thread run #7: crashed: INFO: rcu detected stall in sys_bind 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 corrupted, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79ca9cfa8f00178a1d097ccde8a0371df1454ab6aede88ad5dcb497c6d0b688f 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 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c3c4b16f1f8c10bef5688b51886aca64fa7b4c247d2c2ee8a0cff7ef1deb95d4 run #0: crashed: INFO: rcu detected stall in corrupted 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 sys_openat run #5: crashed: INFO: rcu detected stall in proc_reg_release 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 sys_exit_group run #9: crashed: INFO: rcu detected stall in worker_thread representative crash: INFO: rcu detected stall in corrupted, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 753c8608f3e579307493a63b9242667aee35a751 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 07c0456a71a310f6ce6f28ca8367ab205a01b5fea7c934c33f75752ab7f81116 run #0: crashed: INFO: rcu detected stall in sys_epoll_pwait run #1: crashed: INFO: rcu detected stall in do_idle 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 worker_thread 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 do_idle run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in sys_epoll_pwait, types: [HANG] the chunk can be dropped minimized to 403 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_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 KALLSYMS_BASE_RELATIVE 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 MEMCG_KMEM 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_COMPRESS_NONE MODULE_SIG_KEY_TYPE_RSA 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 [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing current HEAD 34c44eb31de9cb7202ff070900463d6c706392c4 testing commit 34c44eb31de9cb7202ff070900463d6c706392c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 62573f61ced8bf9866647b3447d39e8dc6328d67cd9ba7302fe08a870974409c all runs: OK false negative chance: 0.000 # git bisect start 34c44eb31de9cb7202ff070900463d6c706392c4 753c8608f3e579307493a63b9242667aee35a751 Bisecting: 31628 revisions left to test after this (roughly 15 steps) [5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02] Merge tag 'soc-fixes-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fa09728e24f6a2758b4ba0529fe0b44f79bad1a6dfa7223a9130d8ee3fcbfdf6 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in worker_thread run #2: crashed: INFO: rcu detected stall in worker_thread 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 do_idle 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 do_idle run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 Bisecting: 15825 revisions left to test after this (roughly 14 steps) [98e05e40e9900818346adfcf0c6ef98664224dea] Merge tag 'exynos-drm-fixes-for-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into exynos-drm-next determine whether the revision contains the guilty commit revision 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 98e05e40e9900818346adfcf0c6ef98664224dea gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8213ef796ee8dd1fde9ce62a7cfbae40d51cd98125cdbe42ae52d00f8b793cf9 all runs: OK false negative chance: 0.000 # git bisect bad 98e05e40e9900818346adfcf0c6ef98664224dea Bisecting: 7848 revisions left to test after this (roughly 13 steps) [33e02dc69afbd8f1b85a51d74d72f139ba4ca623] Merge tag 'sound-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 crashed and is reachable testing commit 33e02dc69afbd8f1b85a51d74d72f139ba4ca623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 919319a6ef81d6abe73d63c2b362cfad3a5d08020368acd59bfc4c551b18e26a run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle 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 do_idle 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 do_idle run #8: crashed: BUG: soft lockup in smp_call_function run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 33e02dc69afbd8f1b85a51d74d72f139ba4ca623 Bisecting: 3861 revisions left to test after this (roughly 12 steps) [89601f675b008ed0fd66c060fb23354a106436bb] Merge tag 'usb-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb determine whether the revision contains the guilty commit revision 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 89601f675b008ed0fd66c060fb23354a106436bb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: addcb996dab7adbae85cff11db9cbf0b787b407278c703927c3cb5f5870fb5a4 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in worker_thread run #3: crashed: INFO: rcu detected stall in do_idle 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: BUG: soft lockup in smp_call_function run #8: crashed: BUG: soft lockup in smp_call_function run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 89601f675b008ed0fd66c060fb23354a106436bb Bisecting: 1873 revisions left to test after this (roughly 11 steps) [7957066ca614b63aa6687e825ccbc215fa4584ea] Merge tag 'drm-xe-next-2024-06-06' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next determine whether the revision contains the guilty commit revision 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 7957066ca614b63aa6687e825ccbc215fa4584ea gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c659815785a9e23d4a3834645ed3d949a6d3bc5cbe25590e42f92970f92401ac run #0: crashed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: lost connection to test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip 7957066ca614b63aa6687e825ccbc215fa4584ea Bisecting: 1873 revisions left to test after this (roughly 11 steps) [8d6b029e15ab47986e486f52b2b768ca6faa5cbe] Merge tag 's390-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux determine whether the revision contains the guilty commit revision 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 8d6b029e15ab47986e486f52b2b768ca6faa5cbe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 39150794a8b4391664738b4adc5fdc6ae6dc50c98581a2209be6ce5487d2d27e all runs: OK false negative chance: 0.000 # git bisect bad 8d6b029e15ab47986e486f52b2b768ca6faa5cbe Bisecting: 813 revisions left to test after this (roughly 10 steps) [9ea370f3416ecc4b22d49b24e2c7fdc9c9ba3a0e] Merge tag 'input-for-v6.10-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input determine whether the revision contains the guilty commit revision 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 9ea370f3416ecc4b22d49b24e2c7fdc9c9ba3a0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 269b6b179d5b3840352aaf402ce2f1025bad386168ae96f23a7ae5cfe4bab98c run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle 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 do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: BUG: soft lockup in smp_call_function run #8: crashed: BUG: soft lockup in smp_call_function run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 9ea370f3416ecc4b22d49b24e2c7fdc9c9ba3a0e Bisecting: 406 revisions left to test after this (roughly 9 steps) [886bf9172da06a85de3c68a651477d7d625fd6cc] 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 753c8608f3e579307493a63b9242667aee35a751 crashed and is reachable testing commit 886bf9172da06a85de3c68a651477d7d625fd6cc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bbfd2b5da1563f119770d08794ab3b027438dfaa80533f3ffb122e5781170af all runs: OK false negative chance: 0.000 # git bisect bad 886bf9172da06a85de3c68a651477d7d625fd6cc Bisecting: 199 revisions left to test after this (roughly 8 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 9ea370f3416ecc4b22d49b24e2c7fdc9c9ba3a0e 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: 34dc8021ff8c9264360043b7979ca14bbd4e173b6087bc1c2dcad7760f533a52 all runs: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 9b62e02e63363f5678d5598ee7372064301587f7 Bisecting: 86 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 89601f675b008ed0fd66c060fb23354a106436bb 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: 1b44d9dc85df37d00b55935f4b3994c24b1858fd6e715c2028471009acd3a28d all runs: OK false negative chance: 0.000 # git bisect bad d8ec19857b095b39d114ae299713bd8ea6c1e66a Bisecting: 55 revisions left to test after this (roughly 6 steps) [068648aab72c9ba7b0597354ef4d81ffaac7b979] nfc/nci: Add the inconsistency check between the input data length and count determine whether the revision contains the guilty commit revision 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 crashed and is reachable testing commit 068648aab72c9ba7b0597354ef4d81ffaac7b979 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 55f3290045320b79ac976fd640920abbab6b2d8d1d94f0e967ec49df063a57e4 all runs: OK false negative chance: 0.000 # git bisect bad 068648aab72c9ba7b0597354ef4d81ffaac7b979 Bisecting: 22 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 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 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: e7ad4ae4b8d57c603b24305d61cf03ce0f6ac8e7bc71a928179c88add2dbf85e run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle 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 do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: BUG: soft lockup in smp_call_function run #8: crashed: BUG: soft lockup in smp_call_function run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 2786ae339ef504f480753b54219b65471aaf98e8 Bisecting: 10 revisions left to test after this (roughly 4 steps) [5597613fb3cf0e36d26cfd8fb2a63196da249333] selftests: mptcp: lib: support flaky subtests determine whether the revision contains the guilty commit revision 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 crashed and is reachable testing commit 5597613fb3cf0e36d26cfd8fb2a63196da249333 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1278147bf81f4922f3b4c89715e827a4356067d40eb865c86be03e5c7898d2b3 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle 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 do_idle 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 do_idle run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 5597613fb3cf0e36d26cfd8fb2a63196da249333 Bisecting: 4 revisions left to test after this (roughly 3 steps) [4b4647add7d3c8530493f7247d11e257ee425bf0] sock_map: avoid race between sock_map_close and sk_psock_put determine whether the revision contains the guilty commit revision 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 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: d6efb6b22248721cae4fe1978d8eee0ae238afb84a04719448967d7d9850ae88 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle 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 do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: BUG: soft lockup in smp_call_function run #8: crashed: BUG: soft lockup in smp_call_function run #9: crashed: BUG: soft lockup in smp_call_function 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 33e02dc69afbd8f1b85a51d74d72f139ba4ca623 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: f27b667266b71f8f20073404169bd989d632c6e60b737a66406613be5bb534a7 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 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: 8651031dbfd56821140b48508561b7ee5c9d65a51350ab32150902b223879d08 run #0: crashed: INFO: rcu detected stall in worker_thread run #1: crashed: INFO: rcu detected stall in do_idle 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 do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in sys_symlinkat run #7: crashed: BUG: soft lockup in smp_call_function run #8: crashed: BUG: soft lockup in smp_call_function run #9: crashed: BUG: soft lockup in smp_call_function representative crash: INFO: rcu detected stall in worker_thread, 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: f27b667266b71f8f20073404169bd989d632c6e60b737a66406613be5bb534a7 parent signature: 8651031dbfd56821140b48508561b7ee5c9d65a51350ab32150902b223879d08 revisions tested: 24, total time: 11h0m0.267732072s (build: 3h41m53.341168737s, test: 3h44m15.169742585s) 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): []