ci starts bisection 2024-11-13 08:01:22.603982146 +0000 UTC m=+30371.028004874 bisecting fixing commit since 7a396820222d6d4c02057f41658b162bdcdadd0e building syzkaller on 9bd8dcda8c7c494d59bd3132a668f4784ea835c6 ensuring issue is reproducible on original commit 7a396820222d6d4c02057f41658b162bdcdadd0e testing commit 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 461bb80a1a920180e0ebfc4ff270de98d986563f2682a38d02b238267c00dc51 run #0: crashed: INFO: task hung in blk_trace_setup run #1: crashed: INFO: task hung in blk_trace_setup run #2: crashed: INFO: task hung in blk_trace_setup run #3: crashed: INFO: task hung in blk_trace_setup run #4: crashed: INFO: task hung in blk_trace_setup run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_setup run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_setup run #9: crashed: INFO: task hung in blk_trace_setup run #10: crashed: INFO: task hung in blk_trace_setup run #11: crashed: INFO: task hung in blk_trace_setup run #12: crashed: INFO: task hung in blk_trace_setup run #13: crashed: INFO: task hung in blk_trace_remove run #14: crashed: INFO: task hung in blk_trace_remove run #15: crashed: INFO: task hung in blk_trace_setup run #16: crashed: INFO: task hung in blk_trace_setup run #17: crashed: INFO: task hung in blk_trace_setup run #18: crashed: INFO: task hung in blk_trace_remove run #19: crashed: INFO: task hung in blk_trace_setup representative crash: INFO: task hung in blk_trace_setup, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84451e4c6ed877314a94b560c9ceb02a286ebed02868c5083987402d8db62a9e run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, 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=4045 full=7685 leaves diff=2009 split chunks (needed=false): <2009> split chunk #0 of len 2009 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 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9e837537fcf1648a38ca8b8637c27f869592d07d4d5384f52ce8eeadff426162 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_setup run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, 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 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9856c65dbe7c7094146cdeb084fa7efc7283747e207b0425c52797c2c3d54d04 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_setup run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d0150cc4a91321f4c99c9c62693ab23dc3f7527f66044f4323befa75f7da8807 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 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0891c4f69f280f086278cf6c5a46c8f9f7827e7253686203bc1efdf521aae92a run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_setup run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_setup run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in blk_trace_remove, 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 7a396820222d6d4c02057f41658b162bdcdadd0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ffd593ec1f05762b92215e6755367d5354f113d10b57e95d34572aa8f087578 run #0: crashed: INFO: task hung in blk_trace_setup run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_setup run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_setup run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_remove run #9: OK representative crash: INFO: task hung in blk_trace_setup, types: [HANG] the chunk can be dropped minimized to 402 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CC_IS_GCC CFG80211 CHECKPOINT_RESTORE DVB_CORE FB_CORE HAMRADIO HAVE_KVM HSR IMA IMA_APPRAISE IMA_APPRAISE_MODSIG INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_SIGNATURE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP 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_COMMON KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_GENERIC_HARDWARE_ENABLING KVM_GENERIC_MMU_NOTIFIER KVM_HYPERV 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_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 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_NAT_TFTP 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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing current HEAD f1b785f4c7870c42330b35522c2514e39a1e28e7 testing commit f1b785f4c7870c42330b35522c2514e39a1e28e7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: afbd0008f379eb4cd467ffa927515e050f733108663e4a49c4047a51d19ba2d3 all runs: OK false negative chance: 0.000 # git bisect start f1b785f4c7870c42330b35522c2514e39a1e28e7 7a396820222d6d4c02057f41658b162bdcdadd0e Bisecting: 31221 revisions left to test after this (roughly 15 steps) [afeea2758b4f1210361ce2a91d8fa3e7df606ad2] Merge drm-misc-next-2024-07-04 into drm-misc-next-fixes determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit afeea2758b4f1210361ce2a91d8fa3e7df606ad2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd94d4750f5e02aa82c5f226d783752a8d2ea5d8c344bc71f2f46c09e5911c86 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_setup run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good afeea2758b4f1210361ce2a91d8fa3e7df606ad2 Bisecting: 15609 revisions left to test after this (roughly 14 steps) [c3f2d783a459980eafd24c5af94ccd56a615961f] Merge tag 'mm-hotfixes-stable-2024-08-17-19-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit c3f2d783a459980eafd24c5af94ccd56a615961f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b91cce30114954a741403633d8631c92f10d596edad8119f05fbee080752dd7 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_setup run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good c3f2d783a459980eafd24c5af94ccd56a615961f Bisecting: 7296 revisions left to test after this (roughly 13 steps) [de848da12f752170c2ebe114804a985314fd5a6a] Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision c3f2d783a459980eafd24c5af94ccd56a615961f crashed and is reachable testing commit de848da12f752170c2ebe114804a985314fd5a6a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4c6a76d059ce40c8d03f6c9820349e01c3bac05dd2070b619334f0f4a845f03c all runs: OK false negative chance: 0.000 # git bisect bad de848da12f752170c2ebe114804a985314fd5a6a Bisecting: 4215 revisions left to test after this (roughly 12 steps) [303ba85c60442ecdca77231f227126a83ba39bd3] Merge tag 'spi-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi determine whether the revision contains the guilty commit revision c3f2d783a459980eafd24c5af94ccd56a615961f crashed and is reachable testing commit 303ba85c60442ecdca77231f227126a83ba39bd3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dc5866a234e0a77c39bc5ff83bd2a8bf5950af12ca8284579910cfbc0ed78ba7 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_setup run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_setup run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good 303ba85c60442ecdca77231f227126a83ba39bd3 Bisecting: 2108 revisions left to test after this (roughly 11 steps) [39b3f4e0db5d85aa82678d9e7bc59f5e56667e2e] Merge tag 'hardening-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux determine whether the revision contains the guilty commit revision afeea2758b4f1210361ce2a91d8fa3e7df606ad2 crashed and is reachable testing commit 39b3f4e0db5d85aa82678d9e7bc59f5e56667e2e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a75d6aee4a39bcd100127eb03185ae68a2acf20666a6274d9954d9ee650a25e3 all runs: OK false negative chance: 0.000 # git bisect bad 39b3f4e0db5d85aa82678d9e7bc59f5e56667e2e Bisecting: 1060 revisions left to test after this (roughly 10 steps) [b136021126b99072da705f693a8be07c6285e47c] Merge tag 'x86-fred-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision c3f2d783a459980eafd24c5af94ccd56a615961f crashed and is reachable testing commit b136021126b99072da705f693a8be07c6285e47c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 831493cbd3d903cc40b3dd321fd745fcb3f81e04d0fc0ecfa77bb2e290cb7e16 all runs: OK false negative chance: 0.000 # git bisect bad b136021126b99072da705f693a8be07c6285e47c Bisecting: 474 revisions left to test after this (roughly 9 steps) [4f6dc10b7e4a2a747df425c01c87298673b9a512] Merge tag 'qcom-arm64-for-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit 4f6dc10b7e4a2a747df425c01c87298673b9a512 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c0d9488cc39fd3965bdab0a4f4badd377b0fd97eeac9e34b1868e46f33446295 run #0: crashed: lost connection to test machine run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_setup run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_setup run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good 4f6dc10b7e4a2a747df425c01c87298673b9a512 Bisecting: 238 revisions left to test after this (roughly 8 steps) [b62800736f61521547d50fd8cc332cf9b74cbaff] Merge tag 'memory-controller-drv-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit b62800736f61521547d50fd8cc332cf9b74cbaff gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d81bcfd9348d006f94ac540f451daeb0ed4d133ed05a8ed0d18e1c5987e3ada run #0: crashed: INFO: task hung in blk_trace_setup run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_setup run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_setup run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_setup, types: [HANG] # git bisect good b62800736f61521547d50fd8cc332cf9b74cbaff Bisecting: 126 revisions left to test after this (roughly 7 steps) [72e68896a787abd444df693ba1302ab14c2db4fd] Merge tag 'aspeed-6.12-devicetree' of https://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc into soc/dt determine whether the revision contains the guilty commit revision afeea2758b4f1210361ce2a91d8fa3e7df606ad2 crashed and is reachable testing commit 72e68896a787abd444df693ba1302ab14c2db4fd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1c9f8201438e833ed3133bf13577af7dd5f9bb355d0e72c34fd73f8284316b8 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_setup run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good 72e68896a787abd444df693ba1302ab14c2db4fd Bisecting: 72 revisions left to test after this (roughly 6 steps) [38ea77ab07480fa57a80bbdc2706ab2807ebc9e6] Merge tag 'soc-defconfig-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision c3f2d783a459980eafd24c5af94ccd56a615961f crashed and is reachable testing commit 38ea77ab07480fa57a80bbdc2706ab2807ebc9e6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1117568712ad5a84664b5db29d9d36fc18205863a11d2ed323a08d7674ac1496 run #0: crashed: INFO: task hung in blk_trace_setup run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_setup run #4: crashed: INFO: task hung in blk_trace_setup run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: boot failed: can't ssh into the instance run #8: boot failed: can't ssh into the instance run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_setup, types: [HANG] # git bisect good 38ea77ab07480fa57a80bbdc2706ab2807ebc9e6 Bisecting: 31 revisions left to test after this (roughly 5 steps) [0279aa780df4362f218b5645c07e5265859937f6] Merge tag 'x86-cleanups-2024-09-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 4f6dc10b7e4a2a747df425c01c87298673b9a512 crashed and is reachable testing commit 0279aa780df4362f218b5645c07e5265859937f6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 254d73c641d8b4a9eedd1f30e38016b72fc31adf9dae051b6ea919ec026d8545 all runs: OK false negative chance: 0.000 # git bisect bad 0279aa780df4362f218b5645c07e5265859937f6 Bisecting: 18 revisions left to test after this (roughly 4 steps) [e494548a15ea1eb6cddd5f695ac6718452087ead] Merge tag 'mvebu-arm-6.12-1' of https://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into soc/arm determine whether the revision contains the guilty commit revision c3f2d783a459980eafd24c5af94ccd56a615961f crashed and is reachable testing commit e494548a15ea1eb6cddd5f695ac6718452087ead gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e475bdbdf3000c6781ff8d8a04c5eb607b7d9cd5bf91d9cdc8b2501351f1f9f5 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good e494548a15ea1eb6cddd5f695ac6718452087ead Bisecting: 9 revisions left to test after this (roughly 3 steps) [cc5e03f3be3154f860c9d08b2ac8c139863e1515] x86/extable: Remove unused declaration fixup_bug() determine whether the revision contains the guilty commit revision afeea2758b4f1210361ce2a91d8fa3e7df606ad2 crashed and is reachable testing commit cc5e03f3be3154f860c9d08b2ac8c139863e1515 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c7632874bd7bfa6a32c71eaf0f9bd90728118c550c2b43f6896966e8c15175e8 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_remove run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_setup representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good cc5e03f3be3154f860c9d08b2ac8c139863e1515 Bisecting: 5 revisions left to test after this (roughly 2 steps) [ae94b263f5f69c180347e795fbefa051b65aacc3] x86: Ignore stack unwinding in KCOV determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit ae94b263f5f69c180347e795fbefa051b65aacc3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d1ee6023eabc00e091bae3c256805ec7944a315b6284c98db942f5b93d5a662 all runs: OK false negative chance: 0.000 # git bisect bad ae94b263f5f69c180347e795fbefa051b65aacc3 Bisecting: 1 revision left to test after this (roughly 1 step) [6cd0dd934b03d4ee4094ac474108723e2f2ed7d6] kcov: Add interrupt handling self test determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit 6cd0dd934b03d4ee4094ac474108723e2f2ed7d6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c7e3aabf9154e9d4fc1ca4627d4e6aa1567461648d5f5134356e72c63415d7c7 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_setup run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_setup run #8: crashed: INFO: task hung in blk_trace_setup run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good 6cd0dd934b03d4ee4094ac474108723e2f2ed7d6 Bisecting: 0 revisions left to test after this (roughly 0 steps) [f34d086fb7102fec895fd58b9e816b981b284c17] module: Fix KCOV-ignored file name determine whether the revision contains the guilty commit revision 7a396820222d6d4c02057f41658b162bdcdadd0e crashed and is reachable testing commit f34d086fb7102fec895fd58b9e816b981b284c17 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f8c5cbef57330eea34d633647b014f6095dd51f9a0c6a0974d440c4864ff5998 run #0: crashed: INFO: task hung in blk_trace_remove run #1: crashed: INFO: task hung in blk_trace_remove run #2: crashed: INFO: task hung in blk_trace_remove run #3: crashed: INFO: task hung in blk_trace_remove run #4: crashed: INFO: task hung in blk_trace_remove run #5: crashed: INFO: task hung in blk_trace_setup run #6: crashed: INFO: task hung in blk_trace_remove run #7: crashed: INFO: task hung in blk_trace_remove run #8: crashed: INFO: task hung in blk_trace_remove run #9: crashed: INFO: task hung in blk_trace_remove representative crash: INFO: task hung in blk_trace_remove, types: [HANG] # git bisect good f34d086fb7102fec895fd58b9e816b981b284c17 ae94b263f5f69c180347e795fbefa051b65aacc3 is the first bad commit commit ae94b263f5f69c180347e795fbefa051b65aacc3 Author: Dmitry Vyukov Date: Tue Jun 11 09:50:33 2024 +0200 x86: Ignore stack unwinding in KCOV Stack unwinding produces large amounts of uninteresting coverage. It's called from KASAN kmalloc/kfree hooks, fault injection, etc. It's not particularly useful and is not a function of system call args. Ignore that code. Signed-off-by: Dmitry Vyukov Signed-off-by: Thomas Gleixner Reviewed-by: Alexander Potapenko Reviewed-by: Marco Elver Reviewed-by: Andrey Konovalov Acked-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/all/eaf54b8634970b73552dcd38bf9be6ef55238c10.1718092070.git.dvyukov@google.com arch/x86/kernel/Makefile | 8 ++++++++ 1 file changed, 8 insertions(+) accumulated error probability: 0.00 culprit signature: 1d1ee6023eabc00e091bae3c256805ec7944a315b6284c98db942f5b93d5a662 parent signature: f8c5cbef57330eea34d633647b014f6095dd51f9a0c6a0974d440c4864ff5998 revisions tested: 24, total time: 9h20m29.802166702s (build: 5h17m54.322441031s, test: 3h47m36.453913734s) first good commit: ae94b263f5f69c180347e795fbefa051b65aacc3 x86: Ignore stack unwinding in KCOV recipients (to): ["andreyknvl@gmail.com" "dvyukov@google.com" "elver@google.com" "glider@google.com" "peterz@infradead.org" "tglx@linutronix.de"] recipients (cc): []