ci2 starts bisection 2025-02-25 03:44:11.162409257 +0000 UTC m=+293694.198838049
bisecting fixing commit since 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54
building syzkaller on f2cb035c8f931efff4a020b164e657f16f51934b
ensuring issue is reproducible on original commit 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54
testing commit 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6386b769671a62160d693fd5706a8c76cf517df6953c51134020751a4f4317d3
all runs: crashed: INFO: task hung in lmLogClose
representative crash: INFO: task hung in lmLogClose, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b47a8b5aee23a333ede379b0c69cb234e860922167346be306c1f44c54cbf8ce
all runs: crashed: INFO: task hung in lmLogClose
representative crash: INFO: task hung in lmLogClose, 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=3823 full=7500 leaves diff=2069
split chunks (needed=false): <2069>
split chunk #0 of len 2069 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 60e44e8c5487a90822724cdc7dfcf1b1c4f40407f722d62148fe1f20d6b9ea4d
all runs: crashed: INFO: task hung in lmLogClose
representative crash: INFO: task hung in lmLogClose, 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 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bbcce77ddbfd5c442c03cf383116774412b7374bd98c42d86f1686a77a9f26f9
all runs: crashed: INFO: task hung in lmLogClose
representative crash: INFO: task hung in lmLogClose, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9c4e6a5b985dc60a9cfd66695ab5b47d67898700fa809df43bbc952243c52765
all runs: OK
false negative chance: 0.000
testing without sub-chunk 4/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f817ab30f03f9b69e7d654529dda7d620d97bc27319bece61d6e7dffbec50c78
all runs: crashed: INFO: task hung in lmLogClose
representative crash: INFO: task hung in lmLogClose, 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 60ceadf9247ef7d45bb1dce8fc7b48c888ba7a54 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 620326abf29720a3c2920fd2ae7314d977bf6d08226b52a7802b282cc97646e2
all runs: crashed: INFO: task hung in lmLogClose
representative crash: INFO: task hung in lmLogClose, types: [HANG]
the chunk can be dropped
minimized to 414 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HID_NINTENDO 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 IP_VS_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_PXRC JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_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 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_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MDIO_MVUSB MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOST_USB_HDM MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_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 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_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_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_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_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 NINTENDO_FF 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 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 3a83585836269d5109d84a49d4e5b484e54cc6d1
testing commit 3a83585836269d5109d84a49d4e5b484e54cc6d1 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8a1a3893872c932de9b0e255b0a0143e228338dcae401ec38e6969dae5c371c6
run #0: crashed: INFO: task hung in lmLogClose
run #1: crashed: INFO: task hung in lmLogClose
run #2: crashed: INFO: task hung in lmLogClose
run #3: crashed: INFO: task hung in lmLogClose
run #4: crashed: INFO: task hung in lmLogClose
run #5: crashed: INFO: task hung in lmLogClose
run #6: crashed: INFO: task hung in lmLogClose
run #7: crashed: INFO: task hung in lmLogClose
run #8: crashed: INFO: task hung in lmLogClose
run #9: 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-executor1873232591" "root@10.128.1.153:./syz-executor1873232591"]: exit status 255
Executing: program /usr/bin/ssh host 10.128.1.153, user root, command sftp
OpenSSH_9.2p1 Debian-2+deb12u4, OpenSSL 3.0.15 3 Sep 2024
debug1: Reading configuration data /dev/null
debug1: Connecting to 10.128.1.153 [10.128.1.153] port 22.
debug1: connect to address 10.128.1.153 port 22: Connection timed out
ssh: connect to host 10.128.1.153 port 22: Connection timed out
scp: Connection closed
representative crash: INFO: task hung in lmLogClose, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h35m8.61528896s (build: 1h27m34.106484036s, test: 1h3m35.389695425s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1.129
crash: INFO: task hung in lmLogClose
INFO: task syz-executor:3670 blocked for more than 143 seconds.
Not tainted 6.1.129-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:11272 pid:3670 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5243 [inline]
__schedule+0x59e/0x8a0 kernel/sched/core.c:6560
schedule+0x50/0xb0 kernel/sched/core.c:6636
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6695
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x43b/0x940 kernel/locking/mutex.c:747
lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
jfs_umount+0x126/0x190 fs/jfs/jfs_umount.c:116
jfs_put_super+0x5f/0xf0 fs/jfs/super.c:194
generic_shutdown_super+0x96/0x1c0 fs/super.c:501
kill_block_super+0x2e/0x50 fs/super.c:1470
deactivate_locked_super+0x55/0xc0 fs/super.c:332
cleanup_mnt+0x13d/0x180 fs/namespace.c:1186
task_work_run+0xfa/0x130 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xbd/0xe0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x27/0x1b0 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f692a9b3057
RSP: 002b:00007ffc174ecbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f692aa2d8f4 RCX: 00007f692a9b3057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc174ecc80
RBP: 00007ffc174ecc80 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc174edd00
R13: 00007f692aa2d8f4 R14: 00007ffc174edd40 R15: 0000000000000001
INFO: task syz-executor:3681 blocked for more than 143 seconds.
Not tainted 6.1.129-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:10760 pid:3681 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5243 [inline]
__schedule+0x59e/0x8a0 kernel/sched/core.c:6560
schedule+0x50/0xb0 kernel/sched/core.c:6636
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6695
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x43b/0x940 kernel/locking/mutex.c:747
lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
jfs_umount+0x126/0x190 fs/jfs/jfs_umount.c:116
jfs_put_super+0x5f/0xf0 fs/jfs/super.c:194
generic_shutdown_super+0x96/0x1c0 fs/super.c:501
kill_block_super+0x2e/0x50 fs/super.c:1470
deactivate_locked_super+0x55/0xc0 fs/super.c:332
cleanup_mnt+0x13d/0x180 fs/namespace.c:1186
task_work_run+0xfa/0x130 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xbd/0xe0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x27/0x1b0 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb9f7f05057
RSP: 002b:00007fffd670fc38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fb9f7f7f8f4 RCX: 00007fb9f7f05057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd670fcf0
RBP: 00007fffd670fcf0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffd6710d70
R13: 00007fb9f7f7f8f4 R14: 00007fffd6710db0 R15: 0000000000000001
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff839a8df8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:517 [inline]
#0: ffffffff839a8df8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x98/0x450 kernel/rcu/tasks.h:562
1 lock held by khungtaskd/27:
#0: ffffffff839a8cd0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff839a8cd0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff839a8cd0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2c/0x100 kernel/locking/lockdep.c:6510
2 locks held by getty/1329:
#0: ffff88810dae3898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x50 drivers/tty/tty_ldisc.c:244
#1: ffffc900029832f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x25d/0xba0 drivers/tty/n_tty.c:2198
2 locks held by syz-executor/3670:
#0: ffff88810cfe70e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/3673:
#0: ffff888106b820e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/3681:
#0: ffff888106e4e0e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5795:
#0: ffff888124c5d0e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5796:
#0: ffff8881053740e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5800:
#0: ffff8881053730e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5802:
#0: ffff8881053720e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5807:
#0: ffff8881032e90e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/8047:
#0: ffff8881205250e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
#1: ffffffff83a63558 (jfs_log_mutex){....}-{3:3}, at: lmLogClose+0x4b/0x200 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz-executor/8053:
#0: ffff888122a300e0 (&type->s_umount_key#43){....}-{3:3}, at: deactivate_super+0x80/0xa0 fs/super.c:362
2 locks held by syz.0.1634/13879:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xf0/0x176 lib/dump_stack.c:106
nmi_cpu_backtrace+0x22c/0x240 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x118/0x240 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0x839/0x870 kernel/hung_task.c:377
kthread+0xf5/0x120 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8053 Comm: syz-executor Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:35 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_acquire+0x8c/0x1f0 kernel/locking/lockdep.c:5658
Code: c0 0f 85 e7 00 00 00 65 48 8b 05 cf 0d e3 7e 83 b8 04 0a 00 00 00 0f 85 d2 00 00 00 48 c7 44 24 08 00 00 00 00 9c 8f 44 24 08 <48> 8b 5c 24 08 fa 48 c7 c7 9c 2e 62 83 e8 12 af 92 01 65 ff 05 eb
RSP: 0018:ffffc90000003e28 EFLAGS: 00000046
RAX: ffff8881023651c0 RBX: ffffffff8868c7e0 RCX: ffffffff81a60f86
RDX: 0000000000000000 RSI: ffffffff835cb153 RDI: ffffffff83562bd4
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffffc90000003df8 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8868c7f8
FS: 000055557db90500(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff04da99000 CR3: 000000010275b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x4f/0x80 kernel/locking/spinlock.c:162
debug_object_deactivate+0x46/0x100 lib/debugobjects.c:753
debug_timer_deactivate kernel/time/timer.c:787 [inline]
debug_deactivate kernel/time/timer.c:831 [inline]
detach_timer kernel/time/timer.c:878 [inline]
expire_timers kernel/time/timer.c:1538 [inline]
__run_timers+0x23a/0x490 kernel/time/timer.c:1820
run_timer_softirq+0x20/0x40 kernel/time/timer.c:1833
handle_softirqs+0xff/0x2d0 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0x87/0x100 kernel/softirq.c:661
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1948 [inline]
RIP: 0010:vprintk_emit+0x3e4/0x4f0 kernel/printk/printk.c:2302
Code: 81 e6 00 02 00 00 31 ff e8 59 13 0c 00 49 81 e7 00 02 00 00 75 07 e8 6b 0f 0c 00 eb 06 e8 64 0f 0c 00 fb 48 c7 c7 88 6a 8c 83 <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 41 54 e8 53
RSP: 0018:ffffc90001a5fb28 EFLAGS: 00000293
RAX: ffffffff81202e0c RBX: 0000000000000000 RCX: ffff8881023651c0
RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffff838c6a88
RBP: 0000000000000047 R08: ffffffff81202df7 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8881023651c0 R12: ffffffff81202cc5
R13: 0000000000000000 R14: 000000000000003f R15: 0000000000000200
_printk+0x62/0x80 kernel/printk/printk.c:2328
print_hex_dump+0x12d/0x1e0 lib/hexdump.c:281
jfs_flush_journal+0x54f/0x5e0 fs/jfs/jfs_logmgr.c:1598
jfs_umount+0x5d/0x190 fs/jfs/jfs_umount.c:58
jfs_put_super+0x5f/0xf0 fs/jfs/super.c:194
generic_shutdown_super+0x96/0x1c0 fs/super.c:501
kill_block_super+0x2e/0x50 fs/super.c:1470
deactivate_locked_super+0x55/0xc0 fs/super.c:332
cleanup_mnt+0x13d/0x180 fs/namespace.c:1186
task_work_run+0xfa/0x130 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xbd/0xe0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x27/0x1b0 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbd6e6d9057
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc3d052218 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fbd6e7538f4 RCX: 00007fbd6e6d9057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc3d0522d0
RBP: 00007ffc3d0522d0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc3d053350
R13: 00007fbd6e7538f4 R14: 00007ffc3d053390 R15: 00000000000000e1