ci2 starts bisection 2023-06-22 23:35:15.727088872 +0000 UTC m=+183099.956047124
bisecting fixing commit since fa74641fb6b93a19ccb50579886ecc98320230f9
building syzkaller on 4bce1a3e705a8b62de8194bdb28f5eef89c8feec
ensuring issue is reproducible on original commit fa74641fb6b93a19ccb50579886ecc98320230f9

testing commit fa74641fb6b93a19ccb50579886ecc98320230f9 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4771776dfce4034fab77325c7d1501aea114ce61ec7fc6e543dae038c5bee84a
all runs: crashed: INFO: task hung in truncate_inode_pages_range
testing current HEAD e84a4e368abe42cf359fe237f0238820859d5044
testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4f25427fa4a7bc43ad7a75282ae6c9fc38ad7b191eb452cba7a77e6f2d6cb5bb
all runs: crashed: INFO: task hung in truncate_inode_pages_range
crash still not fixed/happens on the oldest tested release
revisions tested: 2, total time: 1h26m44.669845904s (build: 1h13m57.493865455s, test: 11m45.605667561s)
crash still not fixed on HEAD or HEAD had kernel test errors
commit msg: Linux 6.1.35
crash: INFO: task hung in truncate_inode_pages_range
INFO: task syz-executor.0:4582 blocked for more than 143 seconds.
      Not tainted 6.1.35-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:4582  ppid:1      flags:0x00000009
Call trace:
 __switch_to+0x280/0x5b4 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0xec4/0x1c5c kernel/sched/core.c:6554
 schedule+0xc4/0x170 kernel/sched/core.c:6630
 io_schedule+0x8c/0x188 kernel/sched/core.c:8774
 folio_wait_bit_common+0x604/0x970 mm/filemap.c:1296
 __folio_lock+0x1c/0x28 mm/filemap.c:1659
 folio_lock include/linux/pagemap.h:939 [inline]
 truncate_inode_pages_range+0x838/0xbd0 mm/truncate.c:423
 truncate_inode_pages mm/truncate.c:452 [inline]
 truncate_inode_pages_final+0x7c/0xa8 mm/truncate.c:487
 evict+0x22c/0x584 fs/inode.c:666
 dispose_list fs/inode.c:697 [inline]
 evict_inodes+0x5cc/0x640 fs/inode.c:747
 generic_shutdown_super+0x98/0x2bc fs/super.c:480
 kill_block_super+0x6c/0xc4 fs/super.c:1450
 deactivate_locked_super+0xb4/0x100 fs/super.c:332
 deactivate_super+0xb4/0xd0 fs/super.c:363
 cleanup_mnt+0x314/0x394 fs/namespace.c:1186
 __cleanup_mnt+0x14/0x20 fs/namespace.c:1193
 task_work_run+0x20c/0x294 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1468/0x26cc arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffff80001441c4f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
 #0: ffff80001441ccf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
 #0: ffff80001441c320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:305
2 locks held by getty/3975:
 #0: ffff0000d588b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x38/0x48 drivers/tty/tty_ldsem.c:340
 #1: ffff80001c1bb2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x30c/0xe68 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/4582:
 #0: ffff0000d10920e0 (&type->s_umount_key#48){+.+.}-{3:3}, at: deactivate_super+0xac/0xd0 fs/super.c:362

=============================================