syzbot |
sign-in | mailing list | source | docs |
INFO: task syz.7.1175:9767 blocked for more than 144 seconds. Not tainted 6.1.128-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.1175 state:D stack:25408 pid:9767 ppid:5676 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 rwsem_down_read_slowpath kernel/locking/rwsem.c:1094 [inline] __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x6ff/0xa30 kernel/locking/rwsem.c:1522 iterate_supers+0xac/0x1e0 fs/super.c:755 ksys_sync+0xb9/0x1c0 fs/sync.c:102 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f09ae18cde9 RSP: 002b:00007f09aef2c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f09ae3a5fa0 RCX: 00007f09ae18cde9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f09ae3a5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f09ae3a5fa0 R15: 00007ffe4acbbd58 </TASK> INFO: task syz.7.1175:9768 blocked for more than 144 seconds. Not tainted 6.1.128-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.1175 state:D stack:28616 pid:9768 ppid:5676 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 rwsem_down_read_slowpath kernel/locking/rwsem.c:1094 [inline] __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x6ff/0xa30 kernel/locking/rwsem.c:1522 iterate_supers+0xac/0x1e0 fs/super.c:755 ksys_sync+0xb9/0x1c0 fs/sync.c:102 __do_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f09ae18cde9 RSP: 002b:00007f09aef0b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f09ae3a6080 RCX: 00007f09ae18cde9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f09ae3a6080 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f09ae3a6080 R15: 00007ffe4acbbd58 </TASK> Showing all locks held in the system: 3 locks held by kworker/u4:0/9: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d32e850 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d32f050 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/28: #0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510 1 lock held by klogd/3612: #0: ffff8880b8f3a9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537 2 locks held by getty/4009: #0: ffff88814d09e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x54a/0x1620 drivers/tty/n_tty.c:2198 1 lock held by syz-executor/4258: #0: ffff88807a5900e0 (&type->s_umount_key#49){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362 1 lock held by syz.7.1175/9767: #0: ffff88807a5900e0 (&type->s_umount_key#49){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:755 1 lock held by syz.7.1175/9768: #0: ffff88807a5900e0 (&type->s_umount_key#49){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:755 1 lock held by syz.8.1531/11112: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.128-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1ca/0x430 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xf88/0xfd0 kernel/hung_task.c:377 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11273 Comm: syz.5.1586 Not tainted 6.1.128-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:212 Code: e8 25 00 00 00 0f 0b 0f 1f 00 53 48 89 fb e8 17 00 00 00 48 8b 3d f8 fb 15 0d 48 89 de 5b e9 b7 7f 56 00 cc cc cc cc cc cc cc <48> 8b 04 24 65 48 8b 0d 44 dc 77 7e 65 8b 15 45 dc 77 7e 81 e2 00 RSP: 0018:ffffc90003aa6e58 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff8880259e9dc0 RDX: ffff8880259e9dc0 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffff81eb0d46 R09: ffffed100342be2e R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88801a15f1b0 R14: ffff88801a15f190 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68a7f78ab8 CR3: 000000003138d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> __set_page_owner_handle+0x386/0x3d0 mm/page_owner.c:182 __set_page_owner+0x43/0x60 mm/page_owner.c:195 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2532 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4328 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5605 __get_free_pages+0x8/0x30 mm/page_alloc.c:5655 tlb_next_batch mm/mmu_gather.c:31 [inline] __tlb_remove_page_size+0x1fa/0x3e0 mm/mmu_gather.c:97 __tlb_remove_page include/asm-generic/tlb.h:444 [inline] zap_pte_range mm/memory.c:1456 [inline] zap_pmd_range mm/memory.c:1574 [inline] zap_pud_range mm/memory.c:1603 [inline] zap_p4d_range mm/memory.c:1624 [inline] unmap_page_range+0x1316/0x2740 mm/memory.c:1645 unmap_vmas+0x48b/0x640 mm/memory.c:1730 exit_mmap+0x249/0x980 mm/mmap.c:3238 __mmput+0x115/0x3c0 kernel/fork.c:1200 exit_mm+0x226/0x300 kernel/exit.c:565 do_exit+0x9f1/0x26a0 kernel/exit.c:858 do_group_exit+0x202/0x2b0 kernel/exit.c:1021 get_signal+0x16cb/0x17a0 kernel/signal.c:2871 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f3299f8cde9 Code: Unable to access opcode bytes at 0x7f3299f8cdbf. RSP: 002b:00007f329ade8038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: 0000000000010106 RBX: 00007f329a1a6160 RCX: 00007f3299f8cde9 RDX: 0000000000010106 RSI: 00004000000000c0 RDI: 0000000000000003 RBP: 00007f329a00e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f329a1a6160 R15: 00007ffd1903db48 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/02/15 15:03 | linux-6.1.y | 0cbb5f65e52f | 40a34ec9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/02/14 11:57 | linux-6.1.y | 0cbb5f65e52f | d9a046cf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/02/07 23:26 | linux-6.1.y | 0cbb5f65e52f | ef44b750 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/02/07 15:19 | linux-6.1.y | 0cbb5f65e52f | 53657d1b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/02/01 04:27 | linux-6.1.y | 75cefdf153f5 | aa47157c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/31 20:20 | linux-6.1.y | 75cefdf153f5 | aa47157c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/27 19:49 | linux-6.1.y | 75cefdf153f5 | d99a33ad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/24 00:51 | linux-6.1.y | 75cefdf153f5 | 521b0ce3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/22 20:08 | linux-6.1.y | f4f677285b38 | a44b0418 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/15 08:53 | linux-6.1.y | c63962be84ef | 7315a7cf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/07 02:42 | linux-6.1.y | 7dc732d24ff7 | f3558dbf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/02 07:38 | linux-6.1.y | 563edd786f0a | d3ccff63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/01/01 15:01 | linux-6.1.y | 563edd786f0a | d3ccff63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/31 05:08 | linux-6.1.y | 563edd786f0a | d3ccff63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/25 05:58 | linux-6.1.y | 29f02ec58a94 | 444551c4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/22 19:59 | linux-6.1.y | 29f02ec58a94 | b4fbdbd4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/15 02:21 | linux-6.1.y | 52f863f820fd | 7cbfbb3a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/14 23:47 | linux-6.1.y | 52f863f820fd | 7cbfbb3a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/13 16:38 | linux-6.1.y | e4d90d63d385 | 3547e30f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/11 22:26 | linux-6.1.y | e4d90d63d385 | ff949d25 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/12/05 02:08 | linux-6.1.y | e4d90d63d385 | b50eb251 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/11/29 04:13 | linux-6.1.y | e4d90d63d385 | 5df23865 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/11/26 07:40 | linux-6.1.y | e4d90d63d385 | 11dbc254 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/11/20 02:14 | linux-6.1.y | b67dc5c9ade9 | 7d02db5a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/11/11 22:23 | linux-6.1.y | d7039b844a1c | 0c4b1325 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/11/08 09:52 | linux-6.1.y | 7c15117f9468 | 179b040e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/11/06 23:27 | linux-6.1.y | 7c15117f9468 | df3dc63b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/30 11:14 | linux-6.1.y | 7ec6f9fa3d97 | 66aeb999 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/29 10:46 | linux-6.1.y | 7ec6f9fa3d97 | 66aeb999 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/24 22:07 | linux-6.1.y | 7ec6f9fa3d97 | 0d144d1a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/23 19:45 | linux-6.1.y | 7ec6f9fa3d97 | 15fa2979 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/18 06:59 | linux-6.1.y | 54d90d17e8ce | 666f77ed | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/12 10:23 | linux-6.1.y | aa4cd140bba5 | 084d8178 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/07 12:43 | linux-6.1.y | aa4cd140bba5 | d7906eff | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/07 09:32 | linux-6.1.y | aa4cd140bba5 | d7906eff | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/04 12:23 | linux-6.1.y | aa4cd140bba5 | d7906eff | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/02 20:51 | linux-6.1.y | aa4cd140bba5 | 02f9582a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/10/01 10:18 | linux-6.1.y | aa4cd140bba5 | bbd4e0a4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/09/24 22:44 | linux-6.1.y | e526b12bf916 | 5643e0e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/09/20 13:40 | linux-6.1.y | e526b12bf916 | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2024/09/20 02:26 | linux-6.1.y | e526b12bf916 | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers | ||
2025/02/15 20:47 | linux-6.1.y | 0cbb5f65e52f | 40a34ec9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: task hung in iterate_supers | ||
2024/12/03 09:47 | linux-6.1.y | e4d90d63d385 | 578925bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: task hung in iterate_supers | ||
2024/11/03 18:20 | linux-6.1.y | 7c15117f9468 | f00eed24 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: task hung in iterate_supers | ||
2023/03/10 21:23 | linux-6.1.y | 8a923980a190 | 5205ef30 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in iterate_supers |