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INFO: task hung in filemap_fault (5)

Status: auto-obsoleted due to no activity on 2023/09/13 22:48
Subsystems: mm fs
[Documentation on labels]
First crash: 700d, last: 321d
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in filemap_fault (3) mm 1 878d 878d 0/26 closed as invalid on 2022/02/08 09:40
linux-6.1 INFO: task hung in filemap_fault 2 336d 360d 0/3 auto-obsoleted due to no activity on 2023/09/09 11:34
linux-5.15 INFO: task hung in filemap_fault 1 254d 254d 0/3 auto-obsoleted due to no activity on 2023/11/29 22:47
upstream INFO: task hung in filemap_fault mm 24 2306d 2327d 0/26 closed as invalid on 2018/02/13 19:52
android-44 INFO: task hung in filemap_fault 3 2236d 2238d 0/2 auto-closed as invalid on 2019/02/22 14:09
android-49 INFO: task hung in filemap_fault 4 2129d 2176d 0/3 auto-closed as invalid on 2019/02/22 14:49
upstream INFO: task hung in filemap_fault (2) mm 5 2019d 2223d 0/26 auto-closed as invalid on 2019/04/20 06:20
upstream INFO: task hung in filemap_fault (4) mm 1 796d 796d 0/26 auto-closed as invalid on 2022/05/27 12:14

Sample crash report:
INFO: task syz-executor.0:13109 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:24512 pid:13109 ppid:5039   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
 rwsem_down_read_slowpath+0x5f4/0x950 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x9c/0x2f0 kernel/locking/rwsem.c:1522
 filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 filemap_fault+0x647/0x1810 mm/filemap.c:3271
 __do_fault+0x136/0x500 mm/memory.c:4176
 do_read_fault mm/memory.c:4530 [inline]
 do_fault mm/memory.c:4659 [inline]
 do_pte_missing mm/memory.c:3647 [inline]
 handle_pte_fault mm/memory.c:4947 [inline]
 __handle_mm_fault mm/memory.c:5089 [inline]
 handle_mm_fault+0x41a8/0x5860 mm/memory.c:5243
 faultin_page mm/gup.c:925 [inline]
 __get_user_pages+0x5d9/0x12b0 mm/gup.c:1147
 populate_vma_page_range+0x2c7/0x3b0 mm/gup.c:1543
 __mm_populate+0x279/0x450 mm/gup.c:1652
 mm_populate include/linux/mm.h:3153 [inline]
 vm_mmap_pgoff+0x300/0x410 mm/util.c:548
 ksys_mmap_pgoff+0x4f9/0x6d0 mm/mmap.c:1440
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd2d428c169
RSP: 002b:00007fd2d4f70168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fd2d43abf80 RCX: 00007fd2d428c169
RDX: 0000000001000002 RSI: 0000000000b34100 RDI: 0000000020000000
RBP: 00007fd2d42e7ca1 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6264b41f R14: 00007fd2d4f70300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.3:13120 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:27520 pid:13120 ppid:5026   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
 rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
 filemap_invalidate_lock include/linux/fs.h:820 [inline]
 blk_ioctl_zeroout block/ioctl.c:182 [inline]
 blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486
 blkdev_ioctl+0x551/0x7a0 block/ioctl.c:609
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f105468c169
RSP: 002b:00007f10553be168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f10547ac050 RCX: 00007f105468c169
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000007
RBP: 00007f10546e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd62c0622f R14: 00007f10553be300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
 #0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4748:
 #0: ffff8880288d7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor.0/13109:
 #0: ffff8880228a5268 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:142 [inline]
 #0: ffff8880228a5268 (&mm->mmap_lock){++++}-{3:3}, at: __mm_populate+0x1af/0x450 mm/gup.c:1631
 #1: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #1: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_fault+0x647/0x1810 mm/filemap.c:3271
1 lock held by syz-executor.3/13120:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486
2 locks held by syz-executor.5/13117:
1 lock held by syz-executor.0/13191:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226
1 lock held by syz-executor.3/13208:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226
1 lock held by syz-executor.3/13209:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486
1 lock held by syz-executor.5/13212:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226
1 lock held by syz-executor.0/13239:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226
1 lock held by syz-executor.5/13293:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226
1 lock held by syz-executor.3/13296:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:226
1 lock held by syz-executor.3/13297:
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline]
 #0: ffff88801a886bb0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x15dc/0x22c0 block/ioctl.c:486

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xec2/0xf00 kernel/hung_task.c:379
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:112

Crashes (12):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/09 09:25 upstream 25041a4c02c7 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in filemap_fault
2023/03/18 10:04 upstream 8d3c682a5e3d 7939252e .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in filemap_fault
2022/08/02 23:25 upstream 7d0d3fa7339e 1c9013ac .config console log report info ci-upstream-kasan-gce-root INFO: task hung in filemap_fault
2022/06/30 06:40 upstream d9b2ba67917c 1434eec0 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in filemap_fault
2022/06/29 09:04 upstream 941e3e791269 496a8536 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in filemap_fault
2022/06/16 01:45 upstream 979086f5e006 1719ee24 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in filemap_fault
2022/06/14 13:32 upstream b13baccc3850 0f087040 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in filemap_fault
2022/06/02 17:47 upstream d1dc87763f40 5783034f .config console log report info ci-upstream-kasan-gce-root INFO: task hung in filemap_fault
2023/06/15 22:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f86b85033b8c 757d26ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in filemap_fault
2023/01/11 00:29 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 358a161a6a9e 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in filemap_fault
2022/11/01 04:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 a1d8560a .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 INFO: task hung in filemap_fault
2022/10/02 12:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 feb56351 .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 INFO: task hung in filemap_fault
* Struck through repros no longer work on HEAD.