[ 41.155527][ T25] audit: type=1800 audit(1575396426.659:26): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 41.199388][ T25] audit: type=1800 audit(1575396426.669:27): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 41.219155][ T25] audit: type=1800 audit(1575396426.669:28): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.113382][ T25] audit: type=1800 audit(1575396427.639:29): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. 2019/12/03 18:07:15 fuzzer started 2019/12/03 18:07:17 dialing manager at 10.128.0.26:42111 2019/12/03 18:07:17 syscalls: 2689 2019/12/03 18:07:17 code coverage: enabled 2019/12/03 18:07:17 comparison tracing: enabled 2019/12/03 18:07:17 extra coverage: extra coverage is not supported by the kernel 2019/12/03 18:07:17 setuid sandbox: enabled 2019/12/03 18:07:17 namespace sandbox: enabled 2019/12/03 18:07:17 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 18:07:17 fault injection: enabled 2019/12/03 18:07:17 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 18:07:17 net packet injection: enabled 2019/12/03 18:07:17 net device setup: enabled 2019/12/03 18:07:17 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 18:07:17 devlink PCI setup: PCI device 0000:00:10.0 is not available 18:07:18 executing program 0: r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f000000efe8)) ioctl$UFFDIO_REGISTER(r0, 0xc018aa3f, 0x0) 18:07:18 executing program 1: prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0x8d}, 0x0) r0 = getpid() sched_setattr(r0, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x5}, 0x0) r1 = socket$inet6(0xa, 0x2, 0x0) recvmmsg(r1, &(0x7f00000002c0)=[{{0x0, 0x0, &(0x7f00000032c0)=[{&(0x7f00000030c0)=""/207, 0xcf}], 0x1}}], 0x1, 0x0, 0x0) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$setpipe(r3, 0x407, 0x0) write(r3, &(0x7f0000000340), 0x41395527) vmsplice(r2, &(0x7f0000000000)=[{&(0x7f0000000500), 0x3528a9c0}], 0x1, 0x0) sched_setattr(0x0, &(0x7f0000000080)={0x30, 0x2, 0x1, 0x0, 0x3}, 0x0) r4 = syz_open_procfs(0x0, &(0x7f00000001c0)='net/netstat\x00') preadv(r4, &(0x7f00000017c0), 0x315, 0x0) syzkaller login: [ 53.131854][ T8132] IPVS: ftp: loaded support on port[0] = 21 [ 53.276100][ T8132] chnl_net:caif_netlink_parms(): no params data found [ 53.314487][ T8132] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.323368][ T8132] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.332577][ T8132] device bridge_slave_0 entered promiscuous mode [ 53.341408][ T8132] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.350213][ T8132] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.358318][ T8132] device bridge_slave_1 entered promiscuous mode [ 53.380801][ T8132] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.392929][ T8132] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.417324][ T8135] IPVS: ftp: loaded support on port[0] = 21 [ 53.418812][ T8132] team0: Port device team_slave_0 added 18:07:18 executing program 2: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000fbe000)={0x2, &(0x7f0000000000)=[{0x94, 0x0, 0x0, 0xffff00200}, {0x80000006}]}, 0x10) [ 53.431792][ T8132] team0: Port device team_slave_1 added [ 53.487632][ T8132] device hsr_slave_0 entered promiscuous mode [ 53.525813][ T8132] device hsr_slave_1 entered promiscuous mode 18:07:19 executing program 3: mkdir(&(0x7f0000fd5ff8)='./file0\x00', 0x0) openat$ptmx(0xffffffffffffff9c, 0x0, 0x0, 0x0) mount$bpf(0x0, &(0x7f0000000380)='./file0\x00', &(0x7f0000000700)='bpf\x00', 0x0, &(0x7f0000000740)={[{@mode={'mode', 0x3d, 0xffffffffffff8444}}]}) [ 53.627719][ T8137] IPVS: ftp: loaded support on port[0] = 21 [ 53.654897][ T8132] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.718642][ T8132] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.778342][ T8132] netdevsim netdevsim0 netdevsim2: renamed from eth2 18:07:19 executing program 4: perf_event_open(&(0x7f0000000080)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1840, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x6000, 0x101}, 0x0, 0x0, 0xffffffffffffffff, 0x0) [ 53.853110][ T8139] IPVS: ftp: loaded support on port[0] = 21 [ 53.859270][ T8132] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.931295][ T8135] chnl_net:caif_netlink_parms(): no params data found [ 53.980878][ T8132] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.988083][ T8132] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.995971][ T8132] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.003023][ T8132] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.167676][ T8137] chnl_net:caif_netlink_parms(): no params data found [ 54.179071][ T8143] IPVS: ftp: loaded support on port[0] = 21 18:07:19 executing program 5: dup(0xffffffffffffffff) r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000100)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "8811e70000ffffffffffff0000e565aa9a9d32c7627ffe7a54cdbd77b300060000000000000000000000000000000000000000000000000000000000002000", 0x2b}, 0x60) listen(r0, 0x0) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) r2 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r2, &(0x7f0000000100)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "8811e78754a503d39c2bd6a40f03c8aa024d00000000ffffffffffff7f261e21ccf67e1d0000e565aa9a9d32c7627ffe7a54cdbd77b300", 0x2b}, 0x60) bind$nfc_llcp(r1, &(0x7f0000000100)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "8811e78754a503d39c2bd6a40f03c8aa024d00000000ffffffffffff7f261e21ccf67e1d0000e565aa9a9d32c7627ffe7a54cdbd77b300", 0x2b}, 0x60) [ 54.219483][ T8135] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.226874][ T8135] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.234688][ T8135] device bridge_slave_0 entered promiscuous mode [ 54.247192][ T8132] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.275886][ T8135] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.282972][ T8135] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.292078][ T8135] device bridge_slave_1 entered promiscuous mode [ 54.321082][ T2953] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.329938][ T2953] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.342325][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.381288][ T8135] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.392508][ T8135] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.428258][ T8132] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.436420][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 54.443969][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.459054][ T8137] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.468106][ T8137] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.476060][ T8137] device bridge_slave_0 entered promiscuous mode [ 54.484853][ T8137] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.492866][ T8137] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.500997][ T8137] device bridge_slave_1 entered promiscuous mode [ 54.521889][ T8137] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.532910][ T8135] team0: Port device team_slave_0 added [ 54.540402][ T8135] team0: Port device team_slave_1 added [ 54.549861][ T8139] chnl_net:caif_netlink_parms(): no params data found [ 54.579750][ T8137] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.593910][ T8147] IPVS: ftp: loaded support on port[0] = 21 [ 54.622190][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.631240][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.640032][ T3037] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.647187][ T3037] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.659625][ T8139] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.667945][ T8139] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.675859][ T8139] device bridge_slave_0 entered promiscuous mode [ 54.712447][ T8150] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.721488][ T8150] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.730262][ T8150] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.737364][ T8150] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.744976][ T8139] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.752328][ T8139] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.760414][ T8139] device bridge_slave_1 entered promiscuous mode [ 54.779888][ T8137] team0: Port device team_slave_0 added [ 54.838615][ T8135] device hsr_slave_0 entered promiscuous mode [ 54.905389][ T8135] device hsr_slave_1 entered promiscuous mode [ 54.955382][ T8135] debugfs: Directory 'hsr0' with parent '/' already present! [ 54.970450][ T8139] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.981881][ T8139] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.994080][ T8137] team0: Port device team_slave_1 added [ 55.011280][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.020516][ T8143] chnl_net:caif_netlink_parms(): no params data found [ 55.047402][ T8139] team0: Port device team_slave_0 added [ 55.056348][ T8139] team0: Port device team_slave_1 added [ 55.088034][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.148373][ T8137] device hsr_slave_0 entered promiscuous mode [ 55.215487][ T8137] device hsr_slave_1 entered promiscuous mode [ 55.265465][ T8137] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.308224][ T8139] device hsr_slave_0 entered promiscuous mode [ 55.365874][ T8139] device hsr_slave_1 entered promiscuous mode [ 55.435196][ T8139] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.463131][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.472309][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.481030][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.491116][ T8135] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 55.539572][ T8135] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.598264][ T8135] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.660966][ T8135] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.736107][ T8143] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.743292][ T8143] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.751504][ T8143] device bridge_slave_0 entered promiscuous mode [ 55.758841][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.768619][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.781070][ T8132] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 55.791904][ T8132] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 55.817578][ T8143] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.824646][ T8143] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.833172][ T8143] device bridge_slave_1 entered promiscuous mode [ 55.841767][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.850368][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.859397][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.867741][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.889580][ T8139] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 55.952855][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.964454][ T8137] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 55.998972][ T8137] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 56.046711][ T8139] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 56.090611][ T8139] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 56.156573][ T8137] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 56.188876][ T8143] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.199052][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.206927][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.217947][ T8139] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 56.280222][ T8132] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.288341][ T8137] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 56.328981][ T8143] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.366541][ T8147] chnl_net:caif_netlink_parms(): no params data found [ 56.387074][ T8143] team0: Port device team_slave_0 added [ 56.426498][ T8143] team0: Port device team_slave_1 added [ 56.453786][ T8135] 8021q: adding VLAN 0 to HW filter on device bond0 [ 161.525065][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 161.532059][ C0] (detected by 0, t=10502 jiffies, g=5941, q=103) [ 161.538561][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953309-4294942806), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 161.551926][ C0] syz-executor.0 R running task 27912 8154 8132 0x0000400a [ 161.559830][ C0] Call Trace: [ 161.563103][ C0] [ 161.565956][ C0] sched_show_task+0x40f/0x560 [ 161.570717][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 161.575999][ C0] update_process_times+0x12d/0x180 [ 161.581185][ C0] tick_sched_timer+0x263/0x420 [ 161.586030][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 161.591558][ C0] __hrtimer_run_queues+0x403/0x840 [ 161.596758][ C0] hrtimer_interrupt+0x38c/0xda0 [ 161.601696][ C0] ? debug_smp_processor_id+0x9/0x20 [ 161.606972][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 161.612504][ C0] apic_timer_interrupt+0xf/0x20 [ 161.617422][ C0] [ 161.620347][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 161.626485][ C0] Code: 64 02 3b 00 5b 5d c3 cc 48 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 b8 81 8b 7e f7 c2 00 01 1f 00 75 2c 8b 91 80 13 00 00 <83> fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 [ 161.646072][ C0] RSP: 0018:ffffc90002447c38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 161.654466][ C0] RAX: ffffffff81487326 RBX: ffffea0001b05f80 RCX: ffff8880a7ca2300 [ 161.662420][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b05f80 [ 161.670376][ C0] RBP: ffffc90002447c60 R08: dffffc0000000000 R09: fffffbfff12877ed [ 161.678332][ C0] R10: fffffbfff12877ed R11: 0000000000000000 R12: ffff88806c178d20 [ 161.686285][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff88806c263428 [ 161.694251][ C0] ? mod_memcg_page_state+0x16/0x190 [ 161.699523][ C0] ? free_thread_stack+0x124/0x590 [ 161.704620][ C0] ? mod_memcg_page_state+0x16/0x190 [ 161.709888][ C0] free_thread_stack+0x168/0x590 [ 161.714813][ C0] put_task_stack+0xa3/0x130 [ 161.719387][ C0] finish_task_switch+0x3f1/0x550 [ 161.724399][ C0] __schedule+0x9a8/0xcc0 [ 161.728720][ C0] ? ___preempt_schedule+0x16/0x18 [ 161.733811][ C0] preempt_schedule+0xdb/0x120 [ 161.738590][ C0] ___preempt_schedule+0x16/0x18 [ 161.743639][ C0] ? do_group_exit+0x2a8/0x2b0 [ 161.748408][ C0] _raw_spin_unlock_irq+0x77/0x80 [ 161.753426][ C0] do_group_exit+0x2a8/0x2b0 [ 161.758017][ C0] __do_sys_exit_group+0x17/0x20 [ 161.762948][ C0] __se_sys_exit_group+0x14/0x20 [ 161.767893][ C0] __x64_sys_exit_group+0x3b/0x40 [ 161.772917][ C0] do_syscall_64+0xf7/0x1c0 [ 161.777430][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 161.783323][ C0] RIP: 0033:0x45a679 [ 161.787214][ C0] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 161.806810][ C0] RSP: 002b:00007ffe1c93a538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 161.815211][ C0] RAX: ffffffffffffffda RBX: 000000000000001e RCX: 000000000045a679 [ 161.823172][ C0] RDX: 0000000000414211 RSI: fffffffffffffff7 RDI: 0000000000000000 [ 161.831128][ C0] RBP: 0000000000000000 R08: ffffffffffffffff R09: 00007ffe1c93a590 [ 161.839082][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000001 [ 161.847057][ C0] R13: 00007ffe1c93a590 R14: 0000000000000000 R15: 00007ffe1c93a5a0 [ 161.855040][ C0] rcu: rcu_preempt kthread starved for 10534 jiffies! g5941 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 161.866122][ C0] rcu: RCU grace-period kthread stack dump: [ 161.871995][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 161.879878][ C0] Call Trace: [ 161.883158][ C0] __schedule+0x9a0/0xcc0 [ 161.887483][ C0] schedule+0x181/0x210 [ 161.891625][ C0] schedule_timeout+0x14f/0x240 [ 161.896463][ C0] ? run_local_timers+0x120/0x120 [ 161.901479][ C0] rcu_gp_kthread+0xed8/0x1770 [ 161.906238][ C0] kthread+0x332/0x350 [ 161.910288][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 161.915391][ C0] ? kthread_blkcg+0xe0/0xe0 [ 161.919994][ C0] ret_from_fork+0x24/0x30