F2FS-fs (loop1): Inconsistent segment (6) type [1, 0] in SSA and SIT F2FS-fs (loop1): Inconsistent segment (6) type [1, 0] in SSA and SIT F2FS-fs (loop1): Inconsistent segment (6) type [1, 0] in SSA and SIT F2FS-fs (loop1): Inconsistent segment (6) type [1, 0] in SSA and SIT INFO: task syz-executor.1:13307 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D29432 13307 8171 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write_nested+0x51/0x90 kernel/locking/rwsem.c:194 inode_lock_nested include/linux/fs.h:783 [inline] do_unlinkat+0x27d/0x660 fs/namei.c:4051 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fefd26590d9 Code: Bad RIP value. RSP: 002b:00007fefcc7aa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007fefd2779050 RCX: 00007fefd26590d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007fefd26b4ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe921a8f5f R14: 00007fefcc7aa300 R15: 0000000000022000 Showing all locks held in the system: 4 locks held by kworker/u4:0/7: #0: 0000000088634d06 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000000b81f4eb ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000001731fa25 (&type->s_umount_key#48){++++}, at: trylock_super+0x1d/0x100 fs/super.c:412 #3: 000000008d643565 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 1 lock held by khungtaskd/1569: #0: 0000000093dae260 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7798: #0: 00000000f70940c9 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by syz-executor.1/13268: 2 locks held by syz-executor.1/13307: #0: 00000000981cbb5d (sb_writers#14){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000981cbb5d (sb_writers#14){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000d133fb3f (&type->i_mutex_dir_key#8/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline] #1: 00000000d133fb3f (&type->i_mutex_dir_key#8/1){+.+.}, at: do_unlinkat+0x27d/0x660 fs/namei.c:4051 2 locks held by syz-executor.1/14864: #0: 000000001731fa25 (&type->s_umount_key#48){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 000000007427d353 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 000000007427d353 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/14878: #0: 000000001731fa25 (&type->s_umount_key#48){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 000000007427d353 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 000000007427d353 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/14883: #0: 000000001731fa25 (&type->s_umount_key#48){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 000000007427d353 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 000000007427d353 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1569 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 13268 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__lock_is_held+0xb1/0x160 kernel/locking/lockdep.c:3726 Code: d2 0f 85 b5 00 00 00 66 f7 43 22 f0 ff 74 0f 4c 89 f6 48 89 df e8 af f7 ff ff 85 c0 75 2f 83 c5 01 41 39 af 80 08 00 00 7e 70 <48> 63 c5 48 8d 04 80 49 8d 1c c4 48 8d 7b 10 48 89 f8 48 c1 e8 03 RSP: 0018:ffff8880925bf320 EFLAGS: 00000002 RAX: 0000000000000003 RBX: ffff88808b644cb0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88808b644cd2 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88808b644c88 R13: dffffc0000000000 R14: ffffffff89f85f60 R15: ffff88808b644400 FS: 00007fefd0bcb700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcebd494000 CR3: 00000000ab726000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held_type+0x10d/0x210 kernel/locking/lockdep.c:3946 lock_is_held include/linux/lockdep.h:344 [inline] ___might_sleep+0x1ea/0x2b0 kernel/sched/core.c:6157 down_write+0x18/0x90 kernel/locking/rwsem.c:69 __f2fs_submit_merged_write fs/f2fs/data.c:388 [inline] __submit_merged_write_cond+0xbb/0x610 fs/f2fs/data.c:413 do_garbage_collect fs/f2fs/gc.c:1123 [inline] f2fs_gc+0x5e2b/0x8c90 fs/f2fs/gc.c:1196 f2fs_balance_fs+0x71a/0xd80 fs/f2fs/segment.c:513 f2fs_create+0x44d/0x930 fs/f2fs/namei.c:307 lookup_open+0x893/0x1a20 fs/namei.c:3235 do_last fs/namei.c:3327 [inline] path_openat+0x1094/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fefd26590d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fefd0bcb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fefd2778f80 RCX: 00007fefd26590d9 RDX: 0000000000000000 RSI: 0000000000143142 RDI: 0000000020002000 RBP: 00007fefd26b4ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe921a8f5f R14: 00007fefd0bcb300 R15: 0000000000022000