syzbot


INFO: task hung in truncate_inode_pages_final (2)

Status: upstream: reported C repro on 2025/07/15 13:09
Subsystems: arm
[Documentation on labels]
Reported-by: syzbot+760777ae7038cad77437@syzkaller.appspotmail.com
First crash: 213d, last: 1d20h
Discussions (4)
Title Replies (including bot) Last reply
[syzbot] Monthly arm report (Dec 2025) 0 (1) 2025/12/28 08:47
[syzbot] Monthly arm report (Nov 2025) 0 (1) 2025/11/19 12:55
[syzbot] Monthly arm report (Sep 2025) 0 (1) 2025/09/21 22:02
[syzbot] [bcachefs?] [squashfs?] INFO: task hung in truncate_inode_pages_final (2) 2 (3) 2025/07/22 17:40
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: task hung in truncate_inode_pages_final origin:upstream 1 C error 24 5d00h 831d 0/3 upstream: reported C repro on 2023/10/25 05:01
upstream INFO: task hung in truncate_inode_pages_final ntfs3 1 C 9 677d 895d 0/29 auto-obsoleted due to no activity on 2024/07/05 07:04
linux-5.15 INFO: task hung in truncate_inode_pages_final origin:upstream 1 C error 19 7d06h 500d 0/3 upstream: reported C repro on 2024/09/19 16:08
Last patch testing requests (2)
Created Duration User Patch Repo Result
2025/12/27 00:23 25m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/10/17 20:27 21m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log

Sample crash report:
INFO: task syz-executor:6699 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:6699  tgid:6699  ppid:1      task_flags:0x400140 flags:0x00800011
Call trace:
 __switch_to+0x418/0x87c arch/arm64/kernel/process.c:742 (T)
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1250/0x2a7c kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6960
 io_schedule+0x84/0xf4 kernel/sched/core.c:7789
 folio_wait_bit_common+0x56c/0x9e0 mm/filemap.c:1323
 __folio_lock mm/filemap.c:1699 [inline]
 folio_lock include/linux/pagemap.h:1159 [inline]
 __filemap_get_folio_mpol+0x1ec/0xc3c mm/filemap.c:1954
 __filemap_get_folio include/linux/pagemap.h:763 [inline]
 truncate_inode_pages_range+0x390/0xdec mm/truncate.c:413
 truncate_inode_pages mm/truncate.c:485 [inline]
 truncate_inode_pages_final+0x8c/0xbc mm/truncate.c:520
 evict+0x4ec/0xa74 fs/inode.c:839
 dispose_list fs/inode.c:879 [inline]
 evict_inodes+0x774/0x80c fs/inode.c:933
 generic_shutdown_super+0xa0/0x2b8 fs/super.c:628
 kill_block_super+0x44/0x90 fs/super.c:1722
 deactivate_locked_super+0xc4/0x12c fs/super.c:474
 deactivate_super+0xe0/0x100 fs/super.c:507
 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1318
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1325
 task_work_run+0x1dc/0x260 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:44 [inline]
 exit_to_user_mode_loop+0x10c/0x18c kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 exit_to_user_mode_prepare_legacy include/linux/irq-entry-common.h:242 [inline]
 arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:81 [inline]
 el0_svc+0x17c/0x26c arch/arm64/kernel/entry-common.c:725
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff80008fa5b6e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
2 locks held by pr/ttyAMA-1/43:
2 locks held by getty/6347:
 #0: ffff0000c19cd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800099f1e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfc8 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/6699:
 #0: ffff0000ca7b60e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000ca7b60e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000ca7b60e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6780:
 #0: ffff0000d118c0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000d118c0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000d118c0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6803:
 #0: ffff0000dabca0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000dabca0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000dabca0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6824:
 #0: ffff0000ca8b60e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000ca8b60e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000ca8b60e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6852:
 #0: ffff0000dcb140e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000dcb140e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000dcb140e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6885:
 #0: ffff0000e1da40e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000e1da40e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000e1da40e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6917:
 #0: ffff0000c32440e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000c32440e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000c32440e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6954:
 #0: ffff0000f3aee0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000f3aee0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000f3aee0e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
1 lock held by syz-executor/6986:
 #0: ffff0000ee0560e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000ee0560e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000ee0560e0 (&type->s_umount_key#54){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506

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


Crashes (91):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/31 15:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 c75a2f6e .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/07/11 12:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ec4801305969 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/31 09:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 c75a2f6e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/28 23:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/28 12:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/28 00:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/26 23:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/24 01:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/21 10:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/21 10:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/20 21:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 2494e18d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/19 16:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/19 09:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/17 16:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/17 04:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/14 06:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/13 18:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/11 21:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/07 23:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8c40f11c7b0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2026/01/07 00:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8c40f11c7b0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/12/27 12:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f0b4cce4481 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/14 13:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci db9030a787e3 f7988ea4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/12 14:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 74c964729281 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/12 14:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 74c964729281 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/12 05:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 74c964729281 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/11 21:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 74c964729281 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/10 14:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e424ed997df8 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/10 10:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e424ed997df8 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/07 04:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci dcb6fa37fd7b 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/06 16:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci dcb6fa37fd7b 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/06 14:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci dcb6fa37fd7b a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/06 04:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci dcb6fa37fd7b a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/11/04 12:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci dcb6fa37fd7b 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/23 07:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 143937ca51cc c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/23 00:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 143937ca51cc c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/22 21:19 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 143937ca51cc c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/22 03:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 143937ca51cc 252fbbad .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/21 15:29 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 9832ed61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/20 20:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 9832ed61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/20 20:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 9832ed61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/18 21:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 1c8c8cd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/03 18:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/10/03 18:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
2025/07/04 04:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 3cd1604f930f 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in truncate_inode_pages_final
* Struck through repros no longer work on HEAD.