device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 INFO: task syz-executor3:15372 blocked for more than 140 seconds. b_state=0x00000029, b_size=512 Not tainted 4.20.0-rc1-next-20181109+ #110 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 syz-executor3 D23632 15372 6035 0x00000004 b_state=0x00000029, b_size=512 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 syz-executor3(15355): getblk(): executed=9 bh_count=0 bh_state=0 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 schedule+0xef/0x370 kernel/sched/core.c:3516 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __rwsem_down_write_failed_common+0xc9a/0x15e0 kernel/locking/rwsem-xadd.c:577 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __find_get_block_slow() failed. block=2, b_blocknr=16 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 inode_lock include/linux/fs.h:764 [inline] process_measurement+0xc3e/0x1bf0 security/integrity/ima/ima_main.c:205 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 ima_file_check+0xe5/0x130 security/integrity/ima/ima_main.c:391 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 do_last fs/namei.c:3422 [inline] path_openat+0x134a/0x5150 fs/namei.c:3534 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 do_filp_open+0x255/0x380 fs/namei.c:3564 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 do_sys_open+0x568/0x700 fs/open.c:1063 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 ksys_open include/linux/syscalls.h:1292 [inline] __do_sys_creat fs/open.c:1121 [inline] __se_sys_creat fs/open.c:1119 [inline] __x64_sys_creat+0x61/0x80 fs/open.c:1119 __find_get_block_slow() failed. block=1, b_blocknr=8 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 entry_SYSCALL_64_after_hwframe+0x49/0xbe device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 RIP: 0033:0x457569 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 Code: Bad RIP value. b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 RSP: 002b:00007fed26b90c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 b_state=0x00000029, b_size=512 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 device loop3 blocksize: 4096 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fed26b916d4 R13: 00000000004bdb2f R14: 00000000004cc9e8 R15: 00000000ffffffff __find_get_block_slow() failed. block=2, b_blocknr=16 Showing all locks held in the system: b_state=0x00000029, b_size=512 3 locks held by kworker/u4:1/21: device loop3 blocksize: 4096 1 lock held by khungtaskd/1011: __find_get_block_slow() failed. block=1, b_blocknr=8 #0: 000000007b2646a4 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 kernel/locking/lockdep.c:4379 b_state=0x00000029, b_size=512 1 lock held by khugepaged/1017: device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 1 lock held by rsyslogd/5843: b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 #0: 00000000dd9958c6 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 b_state=0x00000029, b_size=512 2 locks held by getty/5932: device loop3 blocksize: 4096 #0: 00000000b35a4aa6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 __find_get_block_slow() failed. block=1, b_blocknr=8 #1: 000000000630510e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 2 locks held by getty/5933: __find_get_block_slow() failed. block=2, b_blocknr=16 #0: 00000000d7f37b76 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=512 #1: 0000000099eadee8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 device loop3 blocksize: 4096 2 locks held by getty/5934: __find_get_block_slow() failed. block=1, b_blocknr=8 #0: 00000000d4adae4b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 #1: 00000000bd0b95de (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=512 2 locks held by getty/5935: device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 #0: 000000000785f44e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=512 #1: 00000000e43c96f6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 2 locks held by getty/5936: b_state=0x00000029, b_size=512 #0: 000000006b3f6301 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 #1: 0000000011a00d3f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 2 locks held by getty/5937: b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 #0: 00000000b9efe0a7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 #1: 00000000a3e74d4a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 2 locks held by getty/5938: __find_get_block_slow() failed. block=2, b_blocknr=16 #0: 00000000cf3e45ed (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:353 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 #1: 000000004e8d8034 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 drivers/tty/n_tty.c:2154 b_state=0x00000029, b_size=512 4 locks held by syz-executor3/15355: device loop3 blocksize: 4096 2 locks held by syz-executor3/15372: __find_get_block_slow() failed. block=1, b_blocknr=8 #0: 00000000058745e1 (sb_writers#21){.+.+}, at: sb_start_write include/linux/fs.h:1607 [inline] #0: 00000000058745e1 (sb_writers#21){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:359 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 #1: 000000003ea760b3 (&sb->s_type->i_mutex_key#28){+.+.}, at: inode_lock include/linux/fs.h:764 [inline] #1: 000000003ea760b3 (&sb->s_type->i_mutex_key#28){+.+.}, at: process_measurement+0xc3e/0x1bf0 security/integrity/ima/ima_main.c:205 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=1, b_blocknr=8 b_state=0x00000029, b_size=512 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 ============================================= b_state=0x00000029, b_size=512 NMI backtrace for cpu 0 device loop3 blocksize: 4096 CPU: 0 PID: 1011 Comm: khungtaskd Not tainted 4.20.0-rc1-next-20181109+ #110 __find_get_block_slow() failed. block=1, b_blocknr=8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 b_state=0x00000029, b_size=512 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0xb4c/0x1060 kernel/hung_task.c:289 device loop3 blocksize: 4096 __find_get_block_slow() failed. block=2, b_blocknr=16 b_state=0x00000029, b_size=512 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: device loop3 blocksize: 4096 NMI backtrace for cpu 1 CPU: 1 PID: 15355 Comm: syz-executor3 Not tainted 4.20.0-rc1-next-20181109+ #110 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.504 msecs Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__do_softirq+0x76/0xb7e kernel/softirq.c:250 Code: 88 fe ff ff 00 00 00 88 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 c7 40 10 f2 f2 f2 f2 40 14 00 f2 f2 f2 c7 40 18 f2 f2 f2 f2 c7 40 1c 00 f2 f2 f2 c7 RSP: 0018:ffff8801daf07c90 EFLAGS: 00000082 RAX: ffffed003b5e0f9d RBX: 1ffff1003b5e0fe0 RCX: ffffc9000be0d000 RDX: dffffc0000000000 RSI: ffffffff83920668 RDI: ffffffff8a150a79 RBP: ffff8801daf07e70 R08: ffff8801d82d2040 R09: 0000000000000006 R10: fffffbfff14a4609 R11: 0000000000000001 R12: 1ffff1003b5e0fd4 R13: ffff8801daf07fc0 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fed26bd3700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000001c1ce9000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1688 [inline] RIP: 0010:vprintk_emit+0x87d/0x990 kernel/printk/printk.c:1921 Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 de 00 00 00 48 83 3d 73 69 ec 07 00 74 34 e8 6c 16 1a 00 48 8b bd 90 fe ff ff 57 9d <0f> 1f 44 00 00 e9 aa fe ff ff e8 54 16 1a 00 0f 0b e8 4d 16 1a 00 RSP: 0018:ffff88017c6bea38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 1ffff1002f8d7d4d RCX: ffffc9000be0d000 RDX: 0000000000040000 RSI: ffffffff81659244 RDI: 0000000000000246 RBP: ffff88017c6bebb0 R08: ffff8801d82d2980 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801d82d2040 R12: 0000000000000200 R13: 0000000000000000 R14: ffffed002f8d7d61 R15: ffff88017c6beb88 vprintk_default+0x28/0x30 kernel/printk/printk.c:1964 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:1997 __find_get_block_slow fs/buffer.c:237 [inline] __find_get_block.cold.58+0xd8/0xff fs/buffer.c:1325 __getblk_slow fs/buffer.c:1058 [inline] __getblk_gfp+0x3d3/0x1030 fs/buffer.c:1351 __bread_gfp+0x2d/0x310 fs/buffer.c:1385 sb_bread include/linux/buffer_head.h:307 [inline] fat_ent_bread+0x173/0x290 fs/fat/fatent.c:107 fat_ent_read+0x646/0xc10 fs/fat/fatent.c:368 fat_free_clusters+0x31c/0xe80 fs/fat/fatent.c:565 fat_free fs/fat/file.c:379 [inline] fat_truncate_blocks+0x983/0x10a0 fs/fat/file.c:397 fat_setattr+0xc3d/0xe20 fs/fat/file.c:541 notify_change+0xbde/0x1110 fs/attr.c:334 do_truncate+0x1bd/0x2d0 fs/open.c:63 handle_truncate fs/namei.c:3008 [inline] do_last fs/namei.c:3424 [inline] path_openat+0x375f/0x5150 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_sys_open+0x568/0x700 fs/open.c:1063 ksys_open include/linux/syscalls.h:1292 [inline] __do_sys_creat fs/open.c:1121 [inline] __se_sys_creat fs/open.c:1119 [inline] __x64_sys_creat+0x61/0x80 fs/open.c:1119 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fed26bd2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fed26bd36d4 R13: 00000000004bdb2f R14: 00000000004cc9e8 R15: 00000000ffffffff