R13: 00007ffca838dacf R14: 00007ffb13ed9300 R15: 0000000000022000 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir197505777/syzkaller.BmE9Ys/247/file0 supports timestamps until 2038 (0x7fffffff) INFO: task syz-executor.2:35229 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.2 state:D stack:25008 pid:35229 ppid: 285 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: 0033:0x7f3ead1fdb19 RSP: 002b:00007f3eaa773188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f3ead310f60 RCX: 00007f3ead1fdb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f3ead257f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0734998f R14: 00007f3eaa773300 R15: 0000000000022000 INFO: task syz-executor.2:35554 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.2 state:D stack:28344 pid:35554 ppid: 285 flags:0x10000004 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 rwsem_down_write_slowpath+0x5bc/0xbf0 kernel/locking/rwsem.c:1235 __down_write kernel/locking/rwsem.c:1401 [inline] down_write+0x13c/0x150 kernel/locking/rwsem.c:1558 ext4_write_lock_xattr fs/ext4/xattr.h:142 [inline] ext4_xattr_set_handle+0x15e/0x1310 fs/ext4/xattr.c:2309 ext4_xattr_set+0x13a/0x340 fs/ext4/xattr.c:2495 __vfs_setxattr+0x10f/0x170 fs/xattr.c:177 __vfs_setxattr_noperm+0x11a/0x4c0 fs/xattr.c:208 __vfs_setxattr_locked+0x1bf/0x250 fs/xattr.c:266 vfs_setxattr+0xe8/0x270 fs/xattr.c:283 setxattr+0x23d/0x330 fs/xattr.c:548 __do_sys_fsetxattr fs/xattr.c:603 [inline] __se_sys_fsetxattr fs/xattr.c:592 [inline] __x64_sys_fsetxattr+0x1f5/0x290 fs/xattr.c:592 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f3ead1fdb19 RSP: 002b:00007f3eaa752188 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00007f3ead311020 RCX: 00007f3ead1fdb19 RDX: 0000000020000380 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00007f3ead257f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000014 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0734998f R14: 00007f3eaa752300 R15: 0000000000022000 INFO: task syz-executor.2:35555 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.2 state:D stack:26624 pid:35555 ppid: 285 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] write_dirty_buffer+0x165/0x180 fs/buffer.c:3121 fsync_buffers_list fs/buffer.c:730 [inline] sync_mapping_buffers+0x3ed/0xd00 fs/buffer.c:548 ext4_fsync_nojournal fs/ext4/fsync.c:86 [inline] ext4_sync_file+0x932/0xf30 fs/ext4/fsync.c:170 vfs_fsync_range+0x13d/0x230 fs/sync.c:200 generic_write_sync include/linux/fs.h:2741 [inline] ext4_buffered_write_iter+0x36a/0x4d0 fs/ext4/file.c:278 ext4_file_write_iter+0x4ee/0x1890 fs/ext4/file.c:681 call_write_iter include/linux/fs.h:1903 [inline] new_sync_write+0x42c/0x660 fs/read_write.c:518 vfs_write+0x743/0xa20 fs/read_write.c:605 ksys_write+0x12d/0x250 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f3ead1fdb19 RSP: 002b:00007f3eaa731188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3ead3110e0 RCX: 00007f3ead1fdb19 RDX: 0000000000000007 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f3ead257f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0734998f R14: 00007f3eaa731300 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 1 lock held by in:imklog/178: #0: ffff88800d474870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 2 locks held by rs:main Q:Reg/179: #0: ffff88800c600870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 #1: ffff88800fa6e438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 2 locks held by syz-executor.2/35229: #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: ksys_fallocate fs/open.c:332 [inline] #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: __do_sys_fallocate fs/open.c:340 [inline] #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: __se_sys_fallocate fs/open.c:338 [inline] #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: __x64_sys_fallocate+0xcf/0x140 fs/open.c:338 #1: ffff88804b856d10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:142 [inline] #1: ffff88804b856d10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x21e/0x490 fs/ext4/inline.c:1993 3 locks held by syz-executor.2/35554: #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: __do_sys_fsetxattr fs/xattr.c:601 [inline] #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: __se_sys_fsetxattr fs/xattr.c:592 [inline] #0: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: __x64_sys_fsetxattr+0x176/0x290 fs/xattr.c:592 #1: ffff88804b8570d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #1: ffff88804b8570d0 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: vfs_setxattr+0xca/0x270 fs/xattr.c:282 #2: ffff88804b856d10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:142 [inline] #2: ffff88804b856d10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x15e/0x1310 fs/ext4/xattr.c:2309 2 locks held by syz-executor.2/35555: #0: ffff888052735c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 #1: ffff8880451d0438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 =============================================