EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue INFO: task syz-executor.5:22288 blocked for more than 143 seconds. Not tainted 5.10.109 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:25008 pid:22288 ppid: 287 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3791 [inline] __schedule+0x848/0x1e80 kernel/sched/core.c:4540 schedule+0xcb/0x270 kernel/sched/core.c:4618 io_schedule+0xb6/0x130 kernel/sched/core.c:6291 bit_wait_io+0x12/0xa0 kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0x131/0x1c0 kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0xd5/0x110 kernel/sched/wait_bit.c:117 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer fs/buffer.c:69 [inline] lock_buffer include/linux/buffer_head.h:366 [inline] __sync_dirty_buffer+0x360/0x3f0 fs/buffer.c:3142 __ext4_handle_dirty_metadata+0x290/0x730 fs/ext4/ext4_jbd2.c:366 ext4_convert_inline_data_nolock+0x68e/0xe60 fs/ext4/inline.c:1246 ext4_convert_inline_data+0x31a/0x490 fs/ext4/inline.c:1995 ext4_fallocate+0x1a4/0x3aa0 fs/ext4/extents.c:4696 vfs_fallocate+0x48f/0xcb0 fs/open.c:309 ksys_fallocate fs/open.c:332 [inline] __do_sys_fallocate fs/open.c:340 [inline] __se_sys_fallocate fs/open.c:338 [inline] __x64_sys_fallocate+0xcf/0x140 fs/open.c:338 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd2e7bedb19 RSP: 002b:00007fd2e5163188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007fd2e7d00f60 RCX: 00007fd2e7bedb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fd2e7c47f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe748d053f R14: 00007fd2e5163300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84df6fe0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6379 2 locks held by in:imklog/177: #0: ffff88800cd90ff0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 #1: ffffffff84e906c0 (fs_reclaim){+.+.}-{0:0}, at: __delete_object+0x87/0x100 mm/kmemleak.c:670 2 locks held by syz-executor.5/22288: #0: ffff888050c12438 (sb_writers#3){.+.+}-{0:0}, at: ksys_fallocate fs/open.c:332 [inline] #0: ffff888050c12438 (sb_writers#3){.+.+}-{0:0}, at: __do_sys_fallocate fs/open.c:340 [inline] #0: ffff888050c12438 (sb_writers#3){.+.+}-{0:0}, at: __se_sys_fallocate fs/open.c:338 [inline] #0: ffff888050c12438 (sb_writers#3){.+.+}-{0:0}, at: __x64_sys_fallocate+0xcf/0x140 fs/open.c:338 #1: ffff8880474ec5b0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:142 [inline] #1: ffff8880474ec5b0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x21e/0x490 fs/ext4/inline.c:1993 =============================================