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🐞 Open [994] 🐞 Fixed [3924] 🐞 Invalid [8506] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
INFO: task hung in collapse_huge_page | 352 | 1493d | 1566d | 0/23 | closed as dup on 2018/06/11 10:57 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: task hung in __sb_start_write (2) | 3 | 1433d | 1433d | 0/23 | closed as invalid on 2018/09/17 14:02 |
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 8021q: adding VLAN 0 to HW filter on device team0 INFO: task syz-executor3:17623 blocked for more than 140 seconds. Not tainted 4.18.0-rc4+ #142 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D23064 17623 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3501 schedule+0xfb/0x450 kernel/sched/core.c:3545 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x362/0x600 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read+0x16e/0x210 kernel/locking/percpu-rwsem.c:85 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x2d7/0x300 fs/super.c:1403 sb_start_write include/linux/fs.h:1554 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:386 filename_create+0x13e/0x5b0 fs/namei.c:3640 user_path_create fs/namei.c:3703 [inline] do_mkdirat+0xda/0x310 fs/namei.c:3842 __do_sys_mkdir fs/namei.c:3866 [inline] __se_sys_mkdir fs/namei.c:3864 [inline] __x64_sys_mkdir+0x5c/0x80 fs/namei.c:3864 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455267 Code: 00 00 48 8b 4c 24 78 8b 44 01 04 89 44 24 08 48 8b 84 24 c8 00 00 00 48 89 04 24 e8 53 e7 ff ff 48 8b 44 24 10 48 89 84 24 d0 <00> 00 00 48 8b 8c 24 f8 00 00 00 48 8b 54 24 78 8b 4c 0a 04 89 4c RSP: 002b:00007ffcbd27cc68 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000455267 RDX: 00007ffcbd27d943 RSI: 00000000000001ff RDI: 00007ffcbd27d940 RBP: 0000000000000013 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000064 R11: 0000000000000202 R12: 00000000000003e0 R13: 0000000000411d30 R14: 00007ffcbd27d310 R15: 0000000000000000 INFO: task syz-executor0:18035 blocked for more than 140 seconds. Not tainted 4.18.0-rc4+ #142 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D23696 18035 17552 0x00000004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3501 schedule+0xfb/0x450 kernel/sched/core.c:3545 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x362/0x600 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read+0x16e/0x210 kernel/locking/percpu-rwsem.c:85 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x2d7/0x300 fs/super.c:1403 sb_start_pagefault include/linux/fs.h:1583 [inline] ext4_page_mkwrite+0x1d0/0x1430 fs/ext4/inode.c:6126 do_page_mkwrite+0x14e/0x520 mm/memory.c:2380 wp_page_shared mm/memory.c:2676 [inline] do_wp_page+0xf78/0x19b0 mm/memory.c:2776 handle_pte_fault mm/memory.c:3988 [inline] __handle_mm_fault+0x2a84/0x4460 mm/memory.c:4096 handle_mm_fault+0x53e/0xc80 mm/memory.c:4133 __do_page_fault+0x620/0xe50 arch/x86/mm/fault.c:1396 do_page_fault+0xf6/0x8c0 arch/x86/mm/fault.c:1471 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1160 RIP: 0033:0x4084b0 Code: 24 1f e9 d2 00 00 00 48 ff c2 48 83 fa 08 0f 83 ad 00 00 00 84 01 0f b6 1c 11 38 d8 75 e9 48 89 54 24 20 48 8b 5c 24 48 0f b6 <73> 50 48 0f af f2 0f b6 5b 51 48 89 cf 48 8d 74 3e 08 84 db 74 7c RSP: 002b:00007fff8c66c3d0 EFLAGS: 00010287 RAX: 0000001b33622c48 RBX: 0000000000000000 RCX: 0000001b34620000 RDX: 0000001b33622c4c RSI: 0000000000730b08 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007fff8c66c410 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000002 R14: 000000000072bea0 R15: 000000000072bea0 Showing all locks held in the system: 1 lock held by khungtaskd/902: #0: 000000009016202b (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x428 kernel/locking/lockdep.c:4461 2 locks held by rs:main Q:Reg/4402: #0: 000000003e5710ce (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 #1: 00000000e2a27b0b (sb_writers#6){++++}, at: file_start_write include/linux/fs.h:2737 [inline] #1: 00000000e2a27b0b (sb_writers#6){++++}, at: vfs_write+0x452/0x560 fs/read_write.c:548 1 lock held by rsyslogd/4404: #0: 00000000aea06399 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 fs/file.c:766 2 locks held by getty/4494: #0: 00000000fef14939 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000f7e9f043 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4495: #0: 00000000d633f425 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 0000000027f47f19 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4496: #0: 000000009bfe7ff6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 000000007796213b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4497: #0: 000000003753114f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 000000007401a83a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4498: #0: 0000000026d521b6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000215d1c6d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4499: #0: 0000000045d08b72 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000d029a8a9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4500: #0: 00000000fc3432ff (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000f1a5202a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 1 lock held by syz-executor3/17623: #0: 00000000e2a27b0b (sb_writers#6){++++}, at: sb_start_write include/linux/fs.h:1554 [inline] #0: 00000000e2a27b0b (sb_writers#6){++++}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:386 2 locks held by syz-executor0/18035: #0: 00000000a324fcf6 (&mm->mmap_sem){++++}, at: __do_page_fault+0x389/0xe50 arch/x86/mm/fault.c:1325 #1: 00000000a4223a1c (sb_pagefaults){++++}, at: sb_start_pagefault include/linux/fs.h:1583 [inline] #1: 00000000a4223a1c (sb_pagefaults){++++}, at: ext4_page_mkwrite+0x1d0/0x1430 fs/ext4/inode.c:6126 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 902 Comm: khungtaskd Not tainted 4.18.0-rc4+ #142 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+0x1c9/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x9c4/0xf80 kernel/hung_task.c:252 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci-upstream-kasan-gce-root | 2018/07/12 03:16 | upstream | c25c74b7476e | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/12 00:18 | upstream | c25c74b7476e | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/11 19:05 | upstream | 1e09177acae3 | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/11 13:51 | upstream | 1e09177acae3 | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/11 09:16 | upstream | 30c2c32d7f70 | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/11 04:44 | upstream | 30c2c32d7f70 | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/11 02:58 | upstream | 30c2c32d7f70 | 2e0e3130 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/10 18:07 | upstream | 092150a25cb7 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/10 16:42 | upstream | 092150a25cb7 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/10 13:40 | upstream | 092150a25cb7 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/10 07:25 | upstream | 092150a25cb7 | f25e5770 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/10 06:53 | upstream | 092150a25cb7 | f25e5770 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/07/10 04:31 | upstream | 092150a25cb7 | f25e5770 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2018/04/05 12:29 | upstream | 06dd3dfeea60 | 5e1ccffc | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/12 10:16 | bpf | 6e6fddc78323 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/12 05:24 | bpf | 61d769807f27 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/12 01:52 | bpf | 61d769807f27 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/11 21:14 | bpf | 61d769807f27 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/11 06:44 | bpf | 59ee4129a279 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/10 23:42 | bpf | 59ee4129a279 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/10 23:19 | bpf | 59ee4129a279 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/10 15:06 | bpf | b9626f45abcc | 9fa03fa5 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/10 12:25 | bpf | b9626f45abcc | 9fa03fa5 | .config | log | report | ||||
ci-upstream-bpf-kasan-gce | 2018/07/10 11:11 | bpf | b9626f45abcc | 9fa03fa5 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/12 04:23 | bpf-next | 671dffa7de7b | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/11 22:19 | bpf-next | 671dffa7de7b | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/11 20:53 | bpf-next | 671dffa7de7b | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/10 22:14 | bpf-next | d90c936fb318 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/10 20:44 | bpf-next | d90c936fb318 | 2e0e3130 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/10 11:03 | bpf-next | d90c936fb318 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/10 09:59 | bpf-next | d90c936fb318 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/10 08:53 | bpf-next | d90c936fb318 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-bpf-next-kasan-gce | 2018/07/10 08:42 | bpf-next | d90c936fb318 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/12 10:05 | linux-next | 3ee15ba60e6b | 2e0e3130 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/11 23:34 | linux-next | 98be45067040 | 2e0e3130 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/11 12:23 | linux-next | 98be45067040 | 2e0e3130 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/11 10:57 | linux-next | 98be45067040 | 2e0e3130 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/11 09:02 | linux-next | 98be45067040 | 2e0e3130 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/11 07:51 | linux-next | 98be45067040 | 2e0e3130 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/10 19:41 | linux-next | 3951bd9fe3e2 | 9fa03fa5 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2018/07/10 05:46 | linux-next | d00d6d9a339d | f25e5770 | .config | log | report |