ci2 starts bisection 2024-09-12 19:45:43.275781613 +0000 UTC m=+37934.006710853 bisecting fixing commit since c61bd26ae81a896c8660150b4e356153da30880a building syzkaller on af24b0505c748561efb50f1d03c824d6642f6c0b ensuring issue is reproducible on original commit c61bd26ae81a896c8660150b4e356153da30880a testing commit c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a2a5b324429d38a599a273497482c0473639e26eaf8e464491581cc40071a84 run #0: crashed: INFO: rcu detected stall in sys_socket 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 wg_ratelimiter_gc_entries run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #5: crashed: INFO: rcu detected stall in __run_timers run #6: crashed: INFO: rcu detected stall in sys_openat run #7: crashed: INFO: rcu detected stall in security_file_open run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in sys_execve run #10: crashed: INFO: rcu detected stall in batadv_nc_worker run #11: crashed: INFO: rcu detected stall in sys_exit_group run #12: crashed: INFO: rcu detected stall in batadv_nc_worker run #13: crashed: INFO: rcu detected stall in __do_softirq run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: INFO: rcu detected stall in process_one_work run #16: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in security_file_open run #19: crashed: INFO: rcu detected stall in sys_rename representative crash: INFO: rcu detected stall in sys_socket, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17c028077994c84e7fdb3ad9a57ed8cbf41ed2583a80816d0cc7a2042fcad00f run #0: crashed: INFO: rcu detected stall in sys_exit_group run #1: crashed: INFO: rcu detected stall in dput run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in batadv_nc_worker run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #5: crashed: INFO: rcu detected stall in sock_write_iter run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in sys_unlinkat run #8: crashed: INFO: rcu detected stall in newfstatat run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in sys_exit_group, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=3706 full=7267 leaves diff=1977 split chunks (needed=false): <1977> split chunk #0 of len 1977 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e04ee72156968670ec45b8769217e702b9c3c2e08102c7aeb4c630cc6a50cf1 run #0: crashed: INFO: rcu detected stall in security_file_open run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in sys_unlink run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in sys_exit_group run #5: crashed: INFO: rcu detected stall in clone run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in newfstatat run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in security_file_open, 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 c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 919faa0a43008a62c054027e3b7629182525095493fd3c6a0902562cd3ac47d0 run #0: crashed: INFO: rcu detected stall in bpf_prog_free_deferred run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in __unfreeze_partials run #3: crashed: INFO: rcu detected stall in sys_getdents64 run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #6: crashed: INFO: rcu detected stall in validate_mm run #7: crashed: INFO: rcu detected stall in sys_unlink run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in sys_umount representative crash: INFO: rcu detected stall in bpf_prog_free_deferred, 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 c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 444de1140539acd6417d9730e3070c1a58193f61ba8cc5053bea3b628fd1c65c all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6ccd2b9c818c9aa82f39432b4a7db853cbb38ac98e1057c3f9bb539100992e24 run #0: crashed: INFO: rcu detected stall in newfstatat run #1: crashed: INFO: rcu detected stall in sys_unlink run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in syscall_enter_from_user_mode run #4: crashed: INFO: rcu detected stall in kernfs_fop_write_iter run #5: crashed: INFO: rcu detected stall in sendmsg run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in __do_munmap run #9: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode representative crash: INFO: rcu detected stall in newfstatat, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit c61bd26ae81a896c8660150b4e356153da30880a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2223a7d3646492eae4be54fffe08030f997ccf92978905f476e99917376abbec run #0: crashed: INFO: rcu detected stall in sys_unlink run #1: crashed: INFO: rcu detected stall in security_file_open run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #4: crashed: INFO: rcu detected stall in sys_unlink run #5: crashed: INFO: rcu detected stall in clone run #6: crashed: INFO: rcu detected stall in netlink_release run #7: crashed: INFO: rcu detected stall in sys_socket run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in delayed_put_pid representative crash: INFO: rcu detected stall in sys_unlink, types: [HANG] the chunk can be dropped minimized to 396 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS ISDN 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_INTEL KVM_MMIO 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 LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEDIA_TUNER_XC2028 MEDIA_TUNER_XC5000 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BLK ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETFS_SUPPORT NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_CGROUP NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EGRESS NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_COUNTER NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OBJREF NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_FLOW_TABLE_IPV4 NF_FLOW_TABLE_IPV6 NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 PARTITION_ADVANCED PSAMPLE RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV VIDEO_V4L2 WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32] disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed determining the merge base between c61bd26ae81a896c8660150b4e356153da30880a and 77f587896757708780a7e8792efe62939f25a5ab 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 227e95f8484ac2944df152c35fb3f2e1881416733888d7d6ae18881f12d319cd run #0: crashed: no output from test machine run #1: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor113027703" "root@10.128.0.252:./syz-executor113027703"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.252, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u2, OpenSSL 3.0.11 19 Sep 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.252 [10.128.0.252] port 22. debug1: connect to address 10.128.0.252 port 22: Connection timed out ssh: connect to host 10.128.0.252 port 22: Connection timed out scp: Connection closed run #2: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3240943001" "root@10.128.0.82:./syz-executor3240943001"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.82, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u2, OpenSSL 3.0.11 19 Sep 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.82 [10.128.0.82] port 22. debug1: connect to address 10.128.0.82 port 22: Connection timed out ssh: connect to host 10.128.0.82 port 22: Connection timed out scp: Connection closed run #3: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3589673400" "root@10.128.1.95:./syz-executor3589673400"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.95, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u2, OpenSSL 3.0.11 19 Sep 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.95 [10.128.1.95] port 22. debug1: connect to address 10.128.1.95 port 22: Connection timed out ssh: connect to host 10.128.1.95 port 22: Connection timed out scp: Connection closed run #4: OK run #5: OK run #6: OK run #7: basic kernel testing failed: failed to copy binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1416595814" "root@10.128.1.200:./syz-executor1416595814"] Executing: program /usr/bin/ssh host 10.128.1.200, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u2, OpenSSL 3.0.11 19 Sep 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.200 [10.128.1.200] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u2 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1 debug1: compat_banner: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.1.200:22 as 'root' debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: sntrup761x25519-sha512@openssh.com debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:88IuL3orPAmVsyjIy2DvkKzVRHqGoDXxazNYOfOHasg debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory Warning: Permanently added '10.128.1.200' (ED25519) to the list of known hosts. debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: Will attempt key: /root/.ssh/id_rsa debug1: Will attempt key: /root/.ssh/id_ecdsa debug1: Will attempt key: /root/.ssh/id_ecdsa_sk debug1: Will attempt key: /root/.ssh/id_ed25519 debug1: Will attempt key: /root/.ssh/id_ed25519_sk debug1: Will attempt key: /root/.ssh/id_xmss debug1: Will attempt key: /root/.ssh/id_dsa debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs= debug1: kex_input_ext_info: publickey-hostbound@openssh.com=<0> debug1: SSH2_MSG_SERVICE_ACCEPT received Authenticated to 10.128.1.200 ([10.128.1.200]:22) using "none". debug1: channel 0: new session [client-session] (inactive timeout: 0) debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. debug1: pledge: network debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0 debug1: Sending subsystem: sftp debug1: pledge: fork scp: debug1: stat remote: No such file or directory 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 UNKNOWN] testing current HEAD 77f587896757708780a7e8792efe62939f25a5ab testing commit 77f587896757708780a7e8792efe62939f25a5ab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a264222c28599a7b2e9f3e6b2bc213eadefe065a7285444277b3be96c39f1d54 all runs: OK false negative chance: 0.000 # git bisect start 77f587896757708780a7e8792efe62939f25a5ab 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 125817 revisions left to test after this (roughly 17 steps) [dc0a7b52007145a85d0c2f3151870b101568b449] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit dc0a7b52007145a85d0c2f3151870b101568b449 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5cce258ca3a2123090f48ea0904ed25c686cb9c089c39117fe98f50660fdbdac run #0: crashed: INFO: rcu detected stall in do_idle run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in process_one_work representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good dc0a7b52007145a85d0c2f3151870b101568b449 Bisecting: 62962 revisions left to test after this (roughly 16 steps) [7475e51b87969e01a6812eac713a1c8310372e8a] Merge tag 'net-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 7475e51b87969e01a6812eac713a1c8310372e8a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eaca20ca28d76b3183d354f3890600e8980726e3d20644ba25ee8b3baf59254c run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode 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 sys_unlink run #5: crashed: INFO: rcu detected stall in shmem_file_write_iter run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in sys_inotify_add_watch run #8: crashed: INFO: rcu detected stall in sys_newfstatat run #9: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #10: crashed: INFO: rcu detected stall in sys_openat run #11: crashed: INFO: rcu detected stall in do_idle run #12: crashed: INFO: rcu detected stall in do_dentry_open run #13: crashed: INFO: rcu detected stall in security_file_open run #14: crashed: INFO: rcu detected stall in security_file_open run #15: crashed: INFO: rcu detected stall in sys_newfstatat run #16: crashed: INFO: rcu detected stall in do_idle run #17: crashed: INFO: rcu detected stall in sys_inotify_rm_watch run #18: crashed: INFO: rcu detected stall in do_idle run #19: crashed: INFO: rcu detected stall in sys_openat representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, types: [HANG] # git bisect good 7475e51b87969e01a6812eac713a1c8310372e8a Bisecting: 31473 revisions left to test after this (roughly 15 steps) [0d21364c6e8dc1f62c34bbc49d49935c8b01844c] Merge drm/drm-next into drm-misc-next determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 0d21364c6e8dc1f62c34bbc49d49935c8b01844c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0d3cfbffd6a03345779387e22151dc735ea4b8e6eee3ae2907c7fbf282ed3c3 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 sys_unlink run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in sys_socket run #5: crashed: INFO: rcu detected stall in security_file_open run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in sys_unlink run #8: crashed: INFO: rcu detected stall in security_file_open run #9: crashed: INFO: rcu detected stall in do_idle run #10: crashed: INFO: rcu detected stall in sys_unlink run #11: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #12: crashed: INFO: rcu detected stall in sys_symlinkat run #13: crashed: INFO: rcu detected stall in sys_wait4 run #14: crashed: INFO: rcu detected stall in do_syscall_64 run #15: crashed: INFO: rcu detected stall in sys_clone 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 corrupted run #19: crashed: INFO: rcu detected stall in sock_close representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 0d21364c6e8dc1f62c34bbc49d49935c8b01844c Bisecting: 15743 revisions left to test after this (roughly 14 steps) [6f46fc9bc2bda2254189f547110b9e87e5f100f2] Merge branch 'am65x-ptp' determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 6f46fc9bc2bda2254189f547110b9e87e5f100f2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03aa917ab92f37bd382f4c25005c12f99d9b5ad10bc43bbdcc0ed3b0405333aa all runs: OK false negative chance: 0.000 # git bisect bad 6f46fc9bc2bda2254189f547110b9e87e5f100f2 Bisecting: 8495 revisions left to test after this (roughly 13 steps) [46c6d2b186915176be5acc5d4b6f9793eb32a0c7] Merge tag 'asymmetric-keys-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 46c6d2b186915176be5acc5d4b6f9793eb32a0c7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9a1d507190a2e3094afe171f1e7a87a5aeb4064f703ab8c5991cae9427f9a0e0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in sys_newfstatat run #3: crashed: INFO: rcu detected stall in seq_read_iter run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in sys_getsockopt run #7: crashed: INFO: rcu detected stall in sys_newfstatat run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #10: crashed: INFO: rcu detected stall in sys_getsockopt run #11: crashed: INFO: rcu detected stall in sys_exit_group run #12: crashed: INFO: rcu detected stall in sys_symlinkat run #13: crashed: INFO: rcu detected stall in sys_readlink run #14: crashed: INFO: rcu detected stall in sys_newfstatat run #15: crashed: INFO: rcu detected stall in do_idle run #16: crashed: INFO: rcu detected stall in sys_clone run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect good 46c6d2b186915176be5acc5d4b6f9793eb32a0c7 Bisecting: 4189 revisions left to test after this (roughly 12 steps) [16dbfae867cdeb32f3d24cea81193793d5decc61] Merge tag 'bcachefs-2024-05-19' of https://evilpiepirate.org/git/bcachefs determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 16dbfae867cdeb32f3d24cea81193793d5decc61 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7fe6d94debb616c4e3b96a6ed752b6c29235741dcc38ec4ca2214d15a82bece9 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in sys_unlink run #3: crashed: INFO: rcu detected stall in sys_clone3 run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in sys_socket run #7: crashed: INFO: rcu detected stall in sys_clone run #8: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in security_file_open run #11: crashed: INFO: rcu detected stall in do_idle run #12: crashed: INFO: rcu detected stall in sys_clone run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in sys_getsockopt run #15: crashed: INFO: rcu detected stall in seq_read_iter run #16: crashed: INFO: rcu detected stall in sys_clone run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect good 16dbfae867cdeb32f3d24cea81193793d5decc61 Bisecting: 2239 revisions left to test after this (roughly 11 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 16dbfae867cdeb32f3d24cea81193793d5decc61 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: 895f4edd4e8c285f28ae0d076bc0318f28f54aed3bb86c07911154b7328f6b95 run #0: crashed: INFO: rcu detected stall in sys_socket run #1: crashed: INFO: rcu detected stall in dput run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in sys_unlinkat run #4: crashed: INFO: rcu detected stall in sys_newfstatat run #5: crashed: INFO: rcu detected stall in sys_openat run #6: crashed: INFO: rcu detected stall in sys_mkdirat run #7: crashed: INFO: rcu detected stall in netlink_recvmsg run #8: crashed: INFO: rcu detected stall in sys_openat run #9: crashed: INFO: rcu detected stall in sys_openat run #10: crashed: INFO: rcu detected stall in security_file_open run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in do_idle run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: INFO: rcu detected stall in do_idle run #16: crashed: INFO: rcu detected stall in sys_socket run #17: crashed: INFO: rcu detected stall in sys_symlinkat run #18: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #19: crashed: INFO: rcu detected stall in lockref_get representative crash: INFO: rcu detected stall in sys_socket, types: [HANG] # git bisect good d90be6e4aaf23cd4a2c202891399cbafe669aaab Bisecting: 1119 revisions left to test after this (roughly 10 steps) [83814698cf48ce3aadc5d88a3f577f04482ff92a] Merge tag 'powerpc-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux determine whether the revision contains the guilty commit revision 7475e51b87969e01a6812eac713a1c8310372e8a crashed and is reachable testing commit 83814698cf48ce3aadc5d88a3f577f04482ff92a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f0495291c0d6c5586eff22de16a34c5651a345b53cc9c904655512793dfc0fe all runs: OK false negative chance: 0.000 # git bisect bad 83814698cf48ce3aadc5d88a3f577f04482ff92a Bisecting: 559 revisions left to test after this (roughly 9 steps) [b3dc6e8003b500861fa307e9a3400c52e78e4d3a] ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound determine whether the revision contains the guilty commit revision 7475e51b87969e01a6812eac713a1c8310372e8a crashed and is reachable testing commit b3dc6e8003b500861fa307e9a3400c52e78e4d3a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c6a59438de7b3ac6d5628357f9a3d8051f76946a140edf6ff9bd9d8a2e7c30ea all runs: OK false negative chance: 0.000 # git bisect bad b3dc6e8003b500861fa307e9a3400c52e78e4d3a Bisecting: 276 revisions left to test after this (roughly 8 steps) [1565fce99bd053483eba0714122988dcd29fac91] Merge tag 'iio-for-6.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next determine whether the revision contains the guilty commit revision 7475e51b87969e01a6812eac713a1c8310372e8a crashed and is reachable testing commit 1565fce99bd053483eba0714122988dcd29fac91 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1cbd9d3e970bb7b1d85badb507386eebf52f31d05c20afad83c7a6f4810a0ff3 run #0: crashed: INFO: rcu detected stall in sys_clone run #1: crashed: INFO: rcu detected stall in sys_openat run #2: crashed: INFO: rcu detected stall in sys_readlink run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in sys_mkdirat run #5: crashed: INFO: rcu detected stall in __do_softirq run #6: crashed: INFO: rcu detected stall in sys_futex run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in sys_flock run #9: crashed: INFO: rcu detected stall in sys_unlink run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in sys_inotify_add_watch run #12: crashed: INFO: rcu detected stall in sys_newfstatat run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in sys_newfstatat run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in security_file_open run #17: crashed: INFO: rcu detected stall in sys_unlink run #18: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #19: crashed: INFO: rcu detected stall in dput representative crash: INFO: rcu detected stall in sys_clone, types: [HANG] # git bisect good 1565fce99bd053483eba0714122988dcd29fac91 Bisecting: 143 revisions left to test after this (roughly 7 steps) [2ef32ad2241340565c35baf77fc95053c84eeeb0] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost determine whether the revision contains the guilty commit revision 7475e51b87969e01a6812eac713a1c8310372e8a crashed and is reachable testing commit 2ef32ad2241340565c35baf77fc95053c84eeeb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 92dc1cd3a1dca35b408c5c2cea11ee813d07b583bfed1b733a6aedb26d8a3087 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in do_syscall_64 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 corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in sys_symlinkat run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in seq_read_iter run #10: crashed: INFO: rcu detected stall in do_idle run #11: crashed: INFO: rcu detected stall in sys_rename run #12: crashed: INFO: rcu detected stall in sys_openat run #13: crashed: INFO: rcu detected stall in do_idle run #14: crashed: INFO: rcu detected stall in do_idle run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in sys_getsockopt run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in schedule_tail representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect good 2ef32ad2241340565c35baf77fc95053c84eeeb0 Bisecting: 71 revisions left to test after this (roughly 6 steps) [51ef9305b8f40946d65c40368ffb4c14636d369a] net/mlx5: Lag, do bond only if slaves agree on roce state determine whether the revision contains the guilty commit revision dc0a7b52007145a85d0c2f3151870b101568b449 crashed and is reachable testing commit 51ef9305b8f40946d65c40368ffb4c14636d369a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 641f4a621b6d249342b3279125932d06fdddc403413ea8991ddf8e01261486fc run #0: crashed: INFO: rcu detected stall in sys_openat run #1: crashed: INFO: rcu detected stall in sys_symlinkat run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in sys_newfstatat run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in sys_readlink run #7: crashed: INFO: rcu detected stall in schedule_tail run #8: crashed: INFO: rcu detected stall in sys_symlinkat run #9: crashed: INFO: rcu detected stall in sys_openat run #10: crashed: INFO: rcu detected stall in __fsnotify_parent run #11: crashed: INFO: rcu detected stall in sys_openat run #12: crashed: INFO: rcu detected stall in do_idle run #13: crashed: INFO: rcu detected stall in pipe_write run #14: crashed: INFO: rcu detected stall in do_idle run #15: crashed: INFO: rcu detected stall in do_idle run #16: crashed: INFO: rcu detected stall in sys_newfstatat run #17: crashed: INFO: rcu detected stall in do_idle run #18: crashed: INFO: rcu detected stall in do_idle run #19: crashed: INFO: rcu detected stall in sys_clone representative crash: INFO: rcu detected stall in sys_openat, types: [HANG] # git bisect good 51ef9305b8f40946d65c40368ffb4c14636d369a Bisecting: 35 revisions left to test after this (roughly 5 steps) [12f86b9af96a8b09969e4392311602f787b40834] dt-bindings: net: pse-pd: ti,tps23881: Fix missing "additionalProperties" constraints determine whether the revision contains the guilty commit revision 16dbfae867cdeb32f3d24cea81193793d5decc61 crashed and is reachable testing commit 12f86b9af96a8b09969e4392311602f787b40834 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df6c63d462c48da37982e1eb45a42ffe0f8b516d7c58d9b776df796eacf3e4f9 run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in sys_newfstatat run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in sys_symlinkat 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 do_idle run #7: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #8: crashed: INFO: rcu detected stall in sys_getsockopt run #9: crashed: INFO: rcu detected stall in sys_symlinkat run #10: crashed: INFO: rcu detected stall in worker_thread run #11: crashed: INFO: rcu detected stall in mntput_no_expire run #12: crashed: INFO: rcu detected stall in do_idle run #13: crashed: INFO: rcu detected stall in sys_symlinkat run #14: crashed: INFO: rcu detected stall in do_idle run #15: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #16: crashed: INFO: rcu detected stall in security_file_open run #17: crashed: INFO: rcu detected stall in do_syscall_64 run #18: crashed: INFO: rcu detected stall in sys_unlink run #19: crashed: INFO: rcu detected stall in seq_read_iter representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, types: [HANG] # git bisect good 12f86b9af96a8b09969e4392311602f787b40834 Bisecting: 17 revisions left to test after this (roughly 4 steps) [068648aab72c9ba7b0597354ef4d81ffaac7b979] nfc/nci: Add the inconsistency check between the input data length and count determine whether the revision contains the guilty commit revision dc0a7b52007145a85d0c2f3151870b101568b449 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: 4e54da2859b227f099ddcd78686a23d6203ef9522ba41334571937c8287a7b00 all runs: OK false negative chance: 0.000 # git bisect bad 068648aab72c9ba7b0597354ef4d81ffaac7b979 Bisecting: 8 revisions left to test after this (roughly 3 steps) [8c06ac2178a9dee887929232226e35a5cdda1793] selftests: mptcp: join: mark 'fastclose' tests as flaky determine whether the revision contains the guilty commit revision 16dbfae867cdeb32f3d24cea81193793d5decc61 crashed and is reachable testing commit 8c06ac2178a9dee887929232226e35a5cdda1793 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 054b42b276e339c5cef4fa473b5054cf56943f5b22166528fe7ac08b33cc8df9 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 corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in sys_newfstatat run #5: crashed: INFO: rcu detected stall in sys_getsockopt run #6: crashed: INFO: rcu detected stall in sys_symlinkat run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in sys_close run #11: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #12: crashed: INFO: rcu detected stall in kernfs_iop_get_link run #13: crashed: INFO: rcu detected stall in do_idle run #14: crashed: INFO: rcu detected stall in kernfs_fop_release run #15: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #16: crashed: INFO: rcu detected stall in sys_getsockopt run #17: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #18: crashed: INFO: rcu detected stall in sys_newfstatat run #19: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 8c06ac2178a9dee887929232226e35a5cdda1793 Bisecting: 4 revisions left to test after this (roughly 2 steps) [4b4647add7d3c8530493f7247d11e257ee425bf0] sock_map: avoid race between sock_map_close and sk_psock_put determine whether the revision contains the guilty commit revision 46c6d2b186915176be5acc5d4b6f9793eb32a0c7 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: 194ab61d332c0b633e63d9e65960fd2e9163879e6dd0fe3231ef34cb66b856d5 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in sys_openat run #2: crashed: INFO: rcu detected stall in sys_getsockopt run #3: crashed: INFO: rcu detected stall in sys_newfstatat run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in sys_symlinkat run #6: crashed: INFO: rcu detected stall in sys_readlink run #7: crashed: INFO: rcu detected stall in sys_readlink run #8: crashed: INFO: rcu detected stall in do_syscall_64 run #9: crashed: INFO: rcu detected stall in sys_newfstatat run #10: crashed: INFO: rcu detected stall in sys_clone run #11: crashed: INFO: rcu detected stall in do_syscall_64 run #12: crashed: INFO: rcu detected stall in handle_softirqs run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in sys_clone run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in sys_openat run #17: crashed: INFO: rcu detected stall in sys_getdents64 run #18: crashed: INFO: rcu detected stall in do_idle run #19: crashed: INFO: rcu detected stall in sys_openat representative crash: INFO: rcu detected stall in corrupted, 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 7475e51b87969e01a6812eac713a1c8310372e8a 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: e04f960b681f22584b452860eabdf9f3b2775d39fb7efdf0ca40b9e7ac066725 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 7475e51b87969e01a6812eac713a1c8310372e8a 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: 2ed51573d3915a7533e3a6dc5e9c0162034190560044f0eeb27ab6c1ea524cd1 run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in sys_getdents64 run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in sys_newfstatat run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in do_idle run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in sys_symlinkat run #12: crashed: INFO: rcu detected stall in sys_readlink run #13: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #14: crashed: INFO: rcu detected stall in do_idle run #15: crashed: INFO: rcu detected stall in kernfs_fop_release run #16: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #17: crashed: INFO: rcu detected stall in sys_newfstatat run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in sys_openat representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, 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: e04f960b681f22584b452860eabdf9f3b2775d39fb7efdf0ca40b9e7ac066725 parent signature: 2ed51573d3915a7533e3a6dc5e9c0162034190560044f0eeb27ab6c1ea524cd1 reproducer is flaky (0.65 repro chance estimate) revisions tested: 27, total time: 5h34m54.414391868s (build: 2h1m48.343413767s, test: 3h22m43.75086286s) 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): []