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🐞 Open [960] 🐞 Fixed [3811] 🐞 Invalid [8185] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: rcu detected stall in sys_sendfile64 | C | 4 | 1256d | 1256d | 0/22 | closed as invalid on 2018/12/19 10:12 | ||
linux-4.19 | INFO: rcu detected stall in sys_sendfile64 (2) | 3 | 801d | 852d | 0/1 | auto-closed as invalid on 2020/07/16 06:45 | |||
linux-4.19 | INFO: rcu detected stall in sys_sendfile64 | 1 | 1135d | 1135d | 0/1 | auto-closed as invalid on 2019/10/16 04:09 |
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=11717, q=28) rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295033515-4295023013), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10502 jiffies! g11717 f0x0 RCU_GP_ONOFF(3) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:28944 pid: 14 ppid: 2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:4972 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6253 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6668 irqentry_exit+0x31/0x80 kernel/entry/common.c:425 asm_sysvec_reschedule_ipi+0x12/0x20 arch/x86/include/asm/idtentry.h:643 RIP: 0010:rcu_gp_init+0x1df/0x12a0 kernel/rcu/tree.c:1777 Code: 01 0f 87 ea 0f 00 00 48 8d 3c dd 00 a3 b8 8b 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 db 0f 00 00 <48> 63 2d b2 c0 2d 0c 48 8b 1c dd 00 a3 b8 8b 48 83 fd 01 49 89 ee RSP: 0000:ffffc90000f4fdf0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffffffff1771460 RSI: 0000000000000001 RDI: ffffffff8bb8a300 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000003 R11: 0000000000000001 R12: ffffed1002391410 R13: ffffffff8b80f180 R14: ffffc90000f4fe88 R15: ffff888011c8a080 rcu_gp_kthread+0xab/0x320 kernel/rcu/tree.c:2118 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> rcu: Stack dump where RCU GP kthread last ran: NMI backtrace for cpu 0 CPU: 0 PID: 6559 Comm: syz-executor748 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:481 print_other_cpu_stall kernel/rcu/tree_stall.h:586 [inline] check_cpu_stall kernel/rcu/tree_stall.h:729 [inline] rcu_pending kernel/rcu/tree.c:3878 [inline] rcu_sched_clock_irq+0x2125/0x2200 kernel/rcu/tree.c:2597 update_process_times+0x16d/0x200 kernel/time/timer.c:1785 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__kasan_check_write+0x0/0x10 mm/kasan/shadow.c:37 Code: 83 c4 60 5b 5d 41 5c 41 5d c3 c3 e9 f0 70 45 07 cc cc cc cc cc cc cc cc cc cc 48 8b 0c 24 89 f6 31 d2 e9 f3 f9 ff ff 0f 1f 00 <48> 8b 0c 24 89 f6 ba 01 00 00 00 e9 e0 f9 ff ff 55 53 48 8b 07 48 RSP: 0018:ffffc90001f37718 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000001000 RCX: 0000000000000000 RDX: ffff888072868040 RSI: 0000000000000004 RDI: ffffea0001866f34 RBP: ffffea0001866f34 R08: 000000000000007f R09: ffffea0001866f37 R10: ffffffff83d92a65 R11: 0000000000000000 R12: ffff88806f6801e0 R13: dffffc0000000000 R14: ffff88801c599800 R15: ffffc90001f37a60 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_inc include/linux/atomic/atomic-instrumented.h:181 [inline] page_ref_inc include/linux/page_ref.h:158 [inline] folio_ref_inc include/linux/page_ref.h:165 [inline] folio_get include/linux/mm.h:1199 [inline] get_page include/linux/mm.h:1204 [inline] copy_page_to_iter_pipe lib/iov_iter.c:419 [inline] __copy_page_to_iter lib/iov_iter.c:860 [inline] copy_page_to_iter+0xa34/0xe20 lib/iov_iter.c:880 filemap_read+0x654/0xeb0 mm/filemap.c:2697 generic_file_read_iter+0x3b6/0x5a0 mm/filemap.c:2792 ext4_file_read_iter+0x1d4/0x5d0 fs/ext4/file.c:130 call_read_iter include/linux/fs.h:2156 [inline] generic_file_splice_read+0x453/0x6d0 fs/splice.c:311 do_splice_to+0x1bf/0x250 fs/splice.c:796 splice_direct_to_actor+0x2c2/0x8c0 fs/splice.c:870 do_splice_direct+0x1b3/0x280 fs/splice.c:979 do_sendfile+0xaf2/0x1250 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64 fs/read_write.c:1296 [inline] __x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb66fb19169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd990510a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007fb66fb19169 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 00008400fffffffb R11: 0000000000000246 R12: 00000000000c626a R13: 00007ffd990510bc R14: 00007ffd990510d0 R15: 00007ffd990510c0 </TASK> ---------------- Code disassembly (best guess): 0: 01 0f add %ecx,(%rdi) 2: 87 ea xchg %ebp,%edx 4: 0f 00 00 sldt (%rax) 7: 48 8d 3c dd 00 a3 b8 lea -0x74475d00(,%rbx,8),%rdi e: 8b f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 48 89 fa mov %rdi,%rdx 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 24: 0f 85 db 0f 00 00 jne 0x1005 * 2a: 48 63 2d b2 c0 2d 0c movslq 0xc2dc0b2(%rip),%rbp # 0xc2dc0e3 <-- trapping instruction 31: 48 8b 1c dd 00 a3 b8 mov -0x74475d00(,%rbx,8),%rbx 38: 8b 39: 48 83 fd 01 cmp $0x1,%rbp 3d: 49 89 ee mov %rbp,%r14
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci-upstream-kasan-gce-selinux-root | 2021/12/08 01:16 | upstream | cd8c917a56f2 | 0230ba3e | .config | log | report | syz | C | INFO: rcu detected stall in sys_sendfile64 | |
ci-upstream-kasan-gce-root | 2020/01/24 19:12 | upstream | 4703d9119972 | 2e95ab33 | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-root | 2019/06/06 12:31 | upstream | 156c05917e09 | a547defc | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-selinux-root | 2019/05/03 14:43 | upstream | ea9866793d1e | 1bfa09b9 | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-selinux-root | 2019/04/23 07:48 | upstream | 085b7755808a | 53199d6e | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-smack-root | 2019/04/23 07:46 | upstream | 085b7755808a | 53199d6e | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-root | 2019/02/19 13:36 | upstream | b5372fe5dc84 | 59f36113 | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-selinux-root | 2019/01/19 11:06 | upstream | 2339e91d0e66 | 2103a236 | .config | log | report | syz | C | ||
ci-upstream-linux-next-kasan-gce-root | 2019/04/23 07:50 | linux-next | 3f018f4a019a | 53199d6e | .config | log | report | syz | C | ||
ci-upstream-kasan-gce-smack-root | 2022/01/06 05:37 | upstream | 49ef78e59b07 | 6acc789a | .config | log | report | info | INFO: rcu detected stall in sys_sendfile64 | ||
ci-upstream-kasan-gce-selinux-root | 2021/12/25 01:30 | upstream | b927dfc67d05 | 6caa12e4 | .config | log | report | info | INFO: rcu detected stall in sys_sendfile64 | ||
ci-upstream-kasan-gce-selinux-root | 2021/12/23 22:51 | upstream | 76657eaef4a7 | 6caa12e4 | .config | log | report | info | INFO: rcu detected stall in sys_sendfile64 | ||
ci-upstream-kasan-gce-selinux-root | 2021/12/21 18:11 | upstream | 6e0567b73052 | a938f0b8 | .config | log | report | info | INFO: rcu detected stall in sys_sendfile64 | ||
ci-upstream-kasan-gce-smack-root | 2021/11/07 13:12 | upstream | b5013d084e03 | 4c1be0be | .config | log | report | info | INFO: rcu detected stall in sys_sendfile64 | ||
ci-upstream-linux-next-kasan-gce-root | 2021/12/29 14:42 | linux-next | ea586a076e8a | 6cc879d4 | .config | log | report | info | INFO: rcu detected stall in sys_sendfile64 | ||
ci-upstream-kasan-gce-selinux-root | 2020/05/24 17:22 | upstream | caffb99b6929 | bd28eb9d | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2020/05/08 15:49 | upstream | 79dede78c057 | 2b98fdbc | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/05/02 18:35 | upstream | 690e2aba7beb | 58da4c35 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/04/12 10:08 | upstream | b032227c6293 | a8c6a3f8 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/04/07 07:01 | upstream | 7e63420847ae | 99a96044 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2020/03/13 14:48 | upstream | 3cc6e2c599cd | d850e9d0 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2020/03/12 15:54 | upstream | e6e6ec48dd0f | d850e9d0 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2020/03/10 02:02 | upstream | 30bb5572ce7a | 35f53e45 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2020/02/26 11:16 | upstream | f8788d86ab28 | 59b57593 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/02/20 20:07 | upstream | ca7e1fd1026c | bd2a74a3 | .config | log | report | ||||
ci-upstream-kasan-gce-smack-root | 2020/02/15 02:02 | upstream | 2019fc96af22 | 5d7b90f1 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/02/12 03:14 | upstream | 359c92c02bfa | a75b198c | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/02/10 20:19 | upstream | bb6d3fb354c5 | 18847f55 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2020/02/07 05:17 | upstream | 90568ecf5615 | 06150bf1 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2020/01/12 10:20 | upstream | ac61145a725a | 4c04afaa | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2019/12/24 14:01 | upstream | 46cf053efec6 | be5c2c81 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2019/11/16 04:32 | upstream | eb70e26cd79d | cdac920b | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2019/08/23 05:44 | upstream | 59c36bc8d377 | ca6f3cfa | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2019/07/22 14:40 | upstream | c6dd78fcb8ee | b3c615f5 | .config | log | report | ||||
ci-upstream-kasan-gce-smack-root | 2019/06/20 07:04 | upstream | abf02e2964b3 | 34bf9440 | .config | log | report | ||||
ci-upstream-kasan-gce-smack-root | 2019/06/17 15:30 | upstream | 9e0babf2c06c | 442206d7 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2019/06/13 12:00 | upstream | b076173a309e | 3f4e812b | .config | log | report | ||||
ci-upstream-kasan-gce-smack-root | 2019/06/13 09:59 | upstream | b076173a309e | 3f4e812b | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2019/06/12 12:28 | upstream | aa7235483a83 | 794a1ad7 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2019/06/07 07:45 | upstream | 01047631df81 | 698773cb | .config | log | report | ||||
ci-upstream-kasan-gce-smack-root | 2019/06/06 19:18 | upstream | 156c05917e09 | 698773cb | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2019/06/05 22:41 | upstream | 156c05917e09 | bfb4a51e | .config | log | report | ||||
ci-upstream-kasan-gce-smack-root | 2019/06/04 22:25 | upstream | 788a024921c4 | e41a20c5 | .config | log | report | ||||
ci-upstream-kasan-gce-root | 2019/06/04 22:22 | upstream | 788a024921c4 | e41a20c5 | .config | log | report | ||||
ci-upstream-kasan-gce-selinux-root | 2018/12/31 02:16 | upstream | 195303136f19 | 2b42fdc8 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/06/13 06:22 | linux-next | e7b08814b16b | f4724dd3 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/06/12 07:56 | linux-next | e7b08814b16b | 58802067 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/04/27 12:27 | linux-next | ac935d227366 | 0ce7569e | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/04/18 22:41 | linux-next | ac935d227366 | 365fba24 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/03/28 13:20 | linux-next | 770fbb32d34e | f1ebdfba | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/02/18 07:05 | linux-next | c25a951c50dc | 1ce142dc | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2020/02/03 22:53 | linux-next | 2747d5fdab78 | 93e5e335 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/12/26 08:34 | linux-next | 7ddd09fc4b74 | be5c2c81 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/07/02 08:45 | linux-next | 48a8a5f9a326 | cccc4302 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/07/01 20:25 | linux-next | 48a8a5f9a326 | 907bf746 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/23 14:17 | linux-next | e2d28c40292b | 3efccdd2 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/23 05:59 | linux-next | dc636f5d78de | 34bf9440 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/18 13:24 | linux-next | 1c6b40509daf | e3f76baa | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/17 14:25 | linux-next | a125097c8410 | 442206d7 | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/08 20:42 | linux-next | 3f310e51ceb1 | 0159583c | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/05 14:53 | linux-next | b2924447b98a | bfb4a51e | .config | log | report | ||||
ci-upstream-linux-next-kasan-gce-root | 2019/06/05 14:50 | linux-next | b2924447b98a | bfb4a51e | .config | log | report |