ci starts bisection 2023-06-04 10:17:18.901442966 +0000 UTC m=+245792.399397516 bisecting fixing commit since f339c2597ebb00e738f2b6328c14804ed19f5d57 building syzkaller on 93e26d605eebce2ad19e6f37d9e96a872ca55cce ensuring issue is reproducible on original commit f339c2597ebb00e738f2b6328c14804ed19f5d57 testing commit f339c2597ebb00e738f2b6328c14804ed19f5d57 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 3629afb62d0d184c0864bfd2397c6387edc920bd5991b20babddcd1c30921efd all runs: crashed: INFO: trying to register non-static key in net_free testing current HEAD e5282a7d8f6b604f2bb6a06457734b8cf1e2f8f2 testing commit e5282a7d8f6b604f2bb6a06457734b8cf1e2f8f2 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2761a31a30a167059c01d460064860278fc5834bb1a687cb96e12100e0f28f69 all runs: crashed: INFO: task hung in lock_metapage crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 31m35.657660541s (build: 18m21.463761534s, test: 12m4.875731581s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi crash: INFO: task hung in lock_metapage INFO: task jfsCommit:104 blocked for more than 143 seconds. Not tainted 6.4.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:27752 pid:104 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0xc25/0x57f0 kernel/sched/core.c:6669 schedule+0xde/0x1a0 kernel/sched/core.c:6745 io_schedule+0xbe/0x130 kernel/sched/core.c:8979 __lock_metapage fs/jfs/jfs_metapage.c:50 [inline] lock_metapage+0x1d7/0x3c0 fs/jfs/jfs_metapage.c:64 __get_metapage+0x2d4/0xed0 fs/jfs/jfs_metapage.c:639 diIAGRead.isra.0+0xab/0x120 fs/jfs/jfs_imap.c:2662 diFree+0x8c9/0x3380 fs/jfs/jfs_imap.c:955 jfs_evict_inode+0x349/0x440 fs/jfs/inode.c:156 evict+0x296/0x5d0 fs/inode.c:665 txUpdateMap+0x847/0xa50 fs/jfs/jfs_txnmgr.c:2362 txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline] jfs_lazycommit+0x4db/0x950 fs/jfs/jfs_txnmgr.c:2727 kthread+0x2ea/0x3c0 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.0:5323 blocked for more than 143 seconds. Not tainted 6.4.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24592 pid:5323 ppid:1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0xc25/0x57f0 kernel/sched/core.c:6669 schedule+0xde/0x1a0 kernel/sched/core.c:6745 jfs_flush_journal+0x629/0x830 fs/jfs/jfs_logmgr.c:1564 jfs_sync_fs+0x70/0x90 fs/jfs/super.c:684 sync_filesystem.part.0+0xf5/0x170 fs/sync.c:66 generic_shutdown_super+0x68/0x420 fs/super.c:473 kill_block_super+0x9a/0xe0 fs/super.c:1407 deactivate_locked_super+0x7f/0x130 fs/super.c:331 cleanup_mnt+0x253/0x360 fs/namespace.c:1177 task_work_run+0x12f/0x220 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f041b48d567 RSP: 002b:00007ffd3ec7cec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f041b48d567 RDX: 00007ffd3ec7cf99 RSI: 000000000000000a RDI: 00007ffd3ec7cf90 RBP: 00007ffd3ec7cf90 R08: 00000000ffffffff R09: 00007ffd3ec7cd60 R10: 000055555615e893 R11: 0000000000000246 R12: 00007f041b4e6b24 R13: 00007ffd3ec7e050 R14: 000055555615e810 R15: 00007ffd3ec7e090 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8b78ceb0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffffffff8b78cbb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/27: #0: ffffffff8b78dac0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6559 2 locks held by jfsCommit/104: #0: ffff888076e78920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x265/0x3380 fs/jfs/jfs_imap.c:885 #1: ffff888074a69cf8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x27e/0x3380 fs/jfs/jfs_imap.c:890 2 locks held by getty/4740: #0: ffff88802b002098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x23/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb73/0x1040 drivers/tty/n_tty.c:2176 1 lock held by syz-executor.0/5323: #0: ffff8880284ce0e0 (&type->s_umount_key#50){+.+.}-{3:3}, at: deactivate_super+0x63/0x80 fs/super.c:361 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.4.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x64/0xb0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x175/0x200 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x1bc/0x200 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0x9f9/0xcf0 kernel/hung_task.c:379 kthread+0x2ea/0x3c0 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.4.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Workqueue: phy5 ieee80211_iface_work RIP: 0010:ieee80211_bss_info_update+0xd3/0x8f0 net/mac80211/scan.c:154 Code: 06 00 00 00 4c 89 e7 66 89 44 24 0c 31 c0 f3 48 ab 48 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 78 07 00 00 48 8b 45 08 48 89 44 24 68 48 8d 45 18 48 89 c2 RSP: 0018:ffffc90000117988 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff888071c68050 RCX: 0000000000000000 RDX: 1ffff11004bc78f6 RSI: ffff888025e3c7a8 RDI: ffff888025e3c7b0 RBP: ffff888025e3c7a8 R08: ffff8880288fb678 R09: ffffffff8d6724d7 R10: fffffbfff1ace49a R11: ffff88806f7e5ad0 R12: ffffc900001179e0 R13: ffff8880288f8de0 R14: 000000000000004c R15: ffff88806f7e4cd8 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559eb2b2f018 CR3: 000000000b56a000 CR4: 0000000000350ee0 Call Trace: ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x1259/0x2f40 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline] ieee80211_iface_work+0x6f9/0x9e0 net/mac80211/iface.c:1648 process_one_work+0x86e/0x1410 kernel/workqueue.c:2405 worker_thread+0x5af/0xf00 kernel/workqueue.c:2552 kthread+0x2ea/0x3c0 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308