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Message-Id: <2F54B131-CEAD-4119-B9A0-703B1E6FC936@gmail.com> Date: Tue, 1 Sep 2020 22:36:53 +0300 From: Martin Zaharinov <micron10@...il.com> To: "linux-kernel@...r kernel. org" <linux-kernel@...r.kernel.org> Subject: PPPd Bug with kernel 5.8.5 : task pppd:6009 blocked for more than 122 seconds. HI all kernel team We detect bug in kernel with pppd server When disconnect and connect 1000+ users after many time kernel have lock please see debug log : Aug 30 05:34:55 10.20.22.1 [139221.203949][ T817] INFO: task pppd:6009 blocked for more than 122 seconds. Aug 30 05:34:55 10.20.22.1 [139221.231206][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:34:55 10.20.22.1 [139221.257538][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:34:55 10.20.22.1 [139221.309257][ T817] pppd D 0 6009 1 0x80004006 Aug 30 05:34:55 10.20.22.1 [139221.335289][ T817] Call Trace: Aug 30 05:34:55 10.20.22.1 [139221.360927][ T817] __schedule+0x374/0x750 Aug 30 05:34:55 10.20.22.1 [139221.386660][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:34:55 10.20.22.1 [139221.412825][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:34:55 10.20.22.1 [139221.439154][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:34:55 10.20.22.1 [139221.465557][ T817] __fput+0xc8/0x220 Aug 30 05:34:55 10.20.22.1 [139221.491144][ T817] task_work_run+0x57/0x90 Aug 30 05:34:55 10.20.22.1 [139221.516457][ T817] do_exit+0x317/0xa60 Aug 30 05:34:55 10.20.22.1 [139221.541571][ T817] do_group_exit+0x2e/0x90 Aug 30 05:34:55 10.20.22.1 [139221.566159][ T817] get_signal+0x11b/0x7a0 Aug 30 05:34:55 10.20.22.1 [139221.590102][ T817] do_signal+0x25/0x1f0 Aug 30 05:34:55 10.20.22.1 [139221.613380][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:34:55 10.20.22.1 [139221.636164][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:34:55 10.20.22.1 [139221.658333][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:34:55 10.20.22.1 [139221.680230][ T817] do_syscall_64+0x50/0x120 Aug 30 05:34:55 10.20.22.1 [139221.701469][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:34:55 10.20.22.1 [139221.722554][ T817] RIP: 0033:0x7f8387041ae6 Aug 30 05:34:55 10.20.22.1 [139221.743000][ T817] Code: Bad RIP value. Aug 30 05:34:55 10.20.22.1 [139221.762781][ T817] RSP: 002b:00007ffcee1e4fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:34:55 10.20.22.1 [139221.802079][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f8387041ae6 Aug 30 05:34:56 10.20.22.1 [139221.841537][ T817] RDX: 0000000000000000 RSI: 00007ffcee1e50b0 RDI: 000000000000000d Aug 30 05:34:56 10.20.22.1 [139221.882678][ T817] RBP: 00007ffcee1e50b0 R08: 00007ffcee1e5030 R09: 0000000000000010 Aug 30 05:34:56 10.20.22.1 [139221.924623][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:34:56 10.20.22.1 [139221.967198][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffcee1e7130 Aug 30 05:34:56 10.20.22.1 [139222.011266][ T817] INFO: task pppd:6092 blocked for more than 123 seconds. Aug 30 05:34:56 10.20.22.1 [139222.036779][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:34:56 10.20.22.1 [139222.060127][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:34:56 10.20.22.1 [139222.107395][ T817] pppd D 0 6092 1 0x80004006 Aug 30 05:34:56 10.20.22.1 [139222.131680][ T817] Call Trace: Aug 30 05:34:56 10.20.22.1 [139222.155515][ T817] __schedule+0x374/0x750 Aug 30 05:34:56 10.20.22.1 [139222.179548][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:34:56 10.20.22.1 [139222.203987][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:34:56 10.20.22.1 [139222.228677][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:34:56 10.20.22.1 [139222.253507][ T817] __fput+0xc8/0x220 Aug 30 05:34:56 10.20.22.1 [139222.278100][ T817] task_work_run+0x57/0x90 Aug 30 05:34:56 10.20.22.1 [139222.302749][ T817] do_exit+0x317/0xa60 Aug 30 05:34:56 10.20.22.1 [139222.327154][ T817] do_group_exit+0x2e/0x90 Aug 30 05:34:56 10.20.22.1 [139222.351352][ T817] get_signal+0x11b/0x7a0 Aug 30 05:34:56 10.20.22.1 [139222.375277][ T817] ? set_next_entity+0xcd/0x340 Aug 30 05:34:56 10.20.22.1 [139222.399090][ T817] do_signal+0x25/0x1f0 Aug 30 05:34:56 10.20.22.1 [139222.422846][ T817] ? __schedule+0x1af/0x750 Aug 30 05:34:56 10.20.22.1 [139222.446246][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:34:56 10.20.22.1 [139222.469384][ T817] do_syscall_64+0x50/0x120 Aug 30 05:34:56 10.20.22.1 [139222.491919][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:34:56 10.20.22.1 [139222.514294][ T817] RIP: 0033:0x7f5850cafae6 Aug 30 05:34:56 10.20.22.1 [139222.536053][ T817] Code: Bad RIP value. Aug 30 05:34:56 10.20.22.1 [139222.557135][ T817] RSP: 002b:00007fff80131af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:34:56 10.20.22.1 [139222.598929][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f5850cafae6 Aug 30 05:34:56 10.20.22.1 [139222.640656][ T817] RDX: 0000000000000000 RSI: 00007fff80131c00 RDI: 000000000000000d Aug 30 05:34:56 10.20.22.1 [139222.682379][ T817] RBP: 00007fff80131c00 R08: 00007fff80131b80 R09: 0000000000000010 Aug 30 05:34:56 10.20.22.1 [139222.724620][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:34:56 10.20.22.1 [139222.767406][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007fff80133c80 Aug 30 05:34:56 10.20.22.1 [139222.811661][ T817] INFO: task pppd:6118 blocked for more than 124 seconds. Aug 30 05:34:56 10.20.22.1 [139222.835684][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:34:57 10.20.22.1 [139222.859138][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:34:57 10.20.22.1 [139222.906975][ T817] pppd D 0 6118 1 0x80004006 Aug 30 05:34:57 10.20.22.1 [139222.931411][ T817] Call Trace: Aug 30 05:34:57 10.20.22.1 [139222.955401][ T817] __schedule+0x374/0x750 Aug 30 05:34:57 10.20.22.1 [139222.979553][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:34:57 10.20.22.1 [139223.004125][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:34:57 10.20.22.1 [139223.028880][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:34:57 10.20.22.1 [139223.053766][ T817] __fput+0xc8/0x220 Aug 30 05:34:57 10.20.22.1 [139223.078453][ T817] task_work_run+0x57/0x90 Aug 30 05:34:57 10.20.22.1 [139223.103231][ T817] do_exit+0x317/0xa60 Aug 30 05:34:57 10.20.22.1 [139223.127744][ T817] do_group_exit+0x2e/0x90 Aug 30 05:34:57 10.20.22.1 [139223.152031][ T817] get_signal+0x11b/0x7a0 Aug 30 05:34:57 10.20.22.1 [139223.176074][ T817] do_signal+0x25/0x1f0 Aug 30 05:34:57 10.20.22.1 [139223.199803][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:34:57 10.20.22.1 [139223.223658][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:34:57 10.20.22.1 [139223.247097][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:34:57 10.20.22.1 [139223.270212][ T817] do_syscall_64+0x50/0x120 Aug 30 05:34:57 10.20.22.1 [139223.292925][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:34:57 10.20.22.1 [139223.315277][ T817] RIP: 0033:0x7fb106724ae6 Aug 30 05:34:57 10.20.22.1 [139223.337009][ T817] Code: Bad RIP value. Aug 30 05:34:57 10.20.22.1 [139223.358072][ T817] RSP: 002b:00007ffdff00f868 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:34:57 10.20.22.1 [139223.399784][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007fb106724ae6 Aug 30 05:34:57 10.20.22.1 [139223.441393][ T817] RDX: 0000000000000000 RSI: 00007ffdff00f970 RDI: 000000000000000d Aug 30 05:34:57 10.20.22.1 [139223.482950][ T817] RBP: 00007ffdff00f970 R08: 00007ffdff00f8f0 R09: 0000000000000010 Aug 30 05:34:57 10.20.22.1 [139223.524917][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:34:57 10.20.22.1 [139223.567542][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffdff0119f0 Aug 30 05:34:57 10.20.22.1 [139223.611543][ T817] INFO: task pppd:6203 blocked for more than 125 seconds. Aug 30 05:34:57 10.20.22.1 [139223.634963][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:34:57 10.20.22.1 [139223.658341][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:34:57 10.20.22.1 [139223.705668][ T817] pppd D 0 6203 1 0x80004006 Aug 30 05:34:57 10.20.22.1 [139223.729970][ T817] Call Trace: Aug 30 05:34:57 10.20.22.1 [139223.753831][ T817] __schedule+0x374/0x750 Aug 30 05:34:57 10.20.22.1 [139223.777870][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:34:57 10.20.22.1 [139223.802339][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:34:57 10.20.22.1 [139223.826958][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:34:58 10.20.22.1 [139223.851972][ T817] __fput+0xc8/0x220 Aug 30 05:34:58 10.20.22.1 [139223.876641][ T817] task_work_run+0x57/0x90 Aug 30 05:34:58 10.20.22.1 [139223.901344][ T817] do_exit+0x317/0xa60 Aug 30 05:34:58 10.20.22.1 [139223.925770][ T817] do_group_exit+0x2e/0x90 Aug 30 05:34:58 10.20.22.1 [139223.949994][ T817] get_signal+0x11b/0x7a0 Aug 30 05:34:58 10.20.22.1 [139223.973957][ T817] do_signal+0x25/0x1f0 Aug 30 05:34:58 10.20.22.1 [139223.997589][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:34:58 10.20.22.1 [139224.021326][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:34:58 10.20.22.1 [139224.044700][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:34:58 10.20.22.1 [139224.067829][ T817] do_syscall_64+0x50/0x120 Aug 30 05:34:58 10.20.22.1 [139224.090303][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:34:58 10.20.22.1 [139224.112648][ T817] RIP: 0033:0x7f0e600fbae6 Aug 30 05:34:58 10.20.22.1 [139224.134352][ T817] Code: Bad RIP value. Aug 30 05:34:58 10.20.22.1 [139224.155416][ T817] RSP: 002b:00007ffefc5fd1b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:34:58 10.20.22.1 [139224.197075][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f0e600fbae6 Aug 30 05:34:58 10.20.22.1 [139224.238630][ T817] RDX: 0000000000000000 RSI: 00007ffefc5fd2c0 RDI: 000000000000000d Aug 30 05:34:58 10.20.22.1 [139224.280193][ T817] RBP: 00007ffefc5fd2c0 R08: 00007ffefc5fd240 R09: 0000000000000010 Aug 30 05:34:58 10.20.22.1 [139224.322186][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:34:58 10.20.22.1 [139224.364777][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffefc5ff340 Aug 30 05:34:58 10.20.22.1 [139224.408779][ T817] INFO: task pppd:6214 blocked for more than 126 seconds. Aug 30 05:34:58 10.20.22.1 [139224.434346][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:34:58 10.20.22.1 [139224.457748][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:34:58 10.20.22.1 [139224.505077][ T817] pppd D 0 6214 1 0x80004006 Aug 30 05:34:58 10.20.22.1 [139224.529414][ T817] Call Trace: Aug 30 05:34:58 10.20.22.1 [139224.553311][ T817] __schedule+0x374/0x750 Aug 30 05:34:58 10.20.22.1 [139224.577372][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:34:58 10.20.22.1 [139224.601876][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:34:58 10.20.22.1 [139224.626518][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:34:58 10.20.22.1 [139224.651377][ T817] __fput+0xc8/0x220 Aug 30 05:34:58 10.20.22.1 [139224.676025][ T817] task_work_run+0x57/0x90 Aug 30 05:34:58 10.20.22.1 [139224.700727][ T817] do_exit+0x317/0xa60 Aug 30 05:34:58 10.20.22.1 [139224.725179][ T817] do_group_exit+0x2e/0x90 Aug 30 05:34:58 10.20.22.1 [139224.749407][ T817] get_signal+0x11b/0x7a0 Aug 30 05:34:58 10.20.22.1 [139224.773395][ T817] do_signal+0x25/0x1f0 Aug 30 05:34:58 10.20.22.1 [139224.797066][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:34:58 10.20.22.1 [139224.820858][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:34:59 10.20.22.1 [139224.844225][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:34:59 10.20.22.1 [139224.867338][ T817] do_syscall_64+0x50/0x120 Aug 30 05:34:59 10.20.22.1 [139224.889858][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:34:59 10.20.22.1 [139224.912213][ T817] RIP: 0033:0x7f123bb69ae6 Aug 30 05:34:59 10.20.22.1 [139224.933910][ T817] Code: Bad RIP value. Aug 30 05:34:59 10.20.22.1 [139224.954915][ T817] RSP: 002b:00007ffcc1d86778 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:34:59 10.20.22.1 [139224.996494][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f123bb69ae6 Aug 30 05:34:59 10.20.22.1 [139225.038094][ T817] RDX: 0000000000000000 RSI: 00007ffcc1d86880 RDI: 000000000000000d Aug 30 05:34:59 10.20.22.1 [139225.079629][ T817] RBP: 00007ffcc1d86880 R08: 00007ffcc1d86800 R09: 0000000000000010 Aug 30 05:34:59 10.20.22.1 [139225.121528][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:34:59 10.20.22.1 [139225.164061][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffcc1d88900 Aug 30 05:34:59 10.20.22.1 [139225.207935][ T817] INFO: task pppd:6345 blocked for more than 126 seconds. Aug 30 05:34:59 10.20.22.1 [139225.231494][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:34:59 10.20.22.1 [139225.254943][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:34:59 10.20.22.1 [139225.302255][ T817] pppd D 0 6345 1 0x80004006 Aug 30 05:34:59 10.20.22.1 [139225.326549][ T817] Call Trace: Aug 30 05:34:59 10.20.22.1 [139225.350395][ T817] __schedule+0x374/0x750 Aug 30 05:34:59 10.20.22.1 [139225.374457][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:34:59 10.20.22.1 [139225.398941][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:34:59 10.20.22.1 [139225.423563][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:34:59 10.20.22.1 [139225.448356][ T817] __fput+0xc8/0x220 Aug 30 05:34:59 10.20.22.1 [139225.473009][ T817] task_work_run+0x57/0x90 Aug 30 05:34:59 10.20.22.1 [139225.497728][ T817] do_exit+0x317/0xa60 Aug 30 05:34:59 10.20.22.1 [139225.522193][ T817] do_group_exit+0x2e/0x90 Aug 30 05:34:59 10.20.22.1 [139225.546433][ T817] get_signal+0x11b/0x7a0 Aug 30 05:34:59 10.20.22.1 [139225.570432][ T817] do_signal+0x25/0x1f0 Aug 30 05:34:59 10.20.22.1 [139225.594077][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:34:59 10.20.22.1 [139225.617860][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:34:59 10.20.22.1 [139225.641243][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:34:59 10.20.22.1 [139225.664364][ T817] do_syscall_64+0x50/0x120 Aug 30 05:34:59 10.20.22.1 [139225.686859][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:34:59 10.20.22.1 [139225.709186][ T817] RIP: 0033:0x7fc1b8b04ae6 Aug 30 05:34:59 10.20.22.1 [139225.730924][ T817] Code: Bad RIP value. Aug 30 05:34:59 10.20.22.1 [139225.752035][ T817] RSP: 002b:00007ffdcc0eb328 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:34:59 10.20.22.1 [139225.793799][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007fc1b8b04ae6 Aug 30 05:35:00 10.20.22.1 [139225.835450][ T817] RDX: 0000000000000000 RSI: 00007ffdcc0eb430 RDI: 000000000000000d Aug 30 05:35:00 10.20.22.1 [139225.877103][ T817] RBP: 00007ffdcc0eb430 R08: 00007ffdcc0eb3b0 R09: 0000000000000010 Aug 30 05:35:00 10.20.22.1 [139225.919224][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:35:00 10.20.22.1 [139225.961873][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffdcc0ed4b0 Aug 30 05:35:00 10.20.22.1 [139226.008832][ T817] INFO: task pppd:6356 blocked for more than 127 seconds. Aug 30 05:35:00 10.20.22.1 [139226.032430][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:35:00 10.20.22.1 [139226.055831][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:35:00 10.20.22.1 [139226.103136][ T817] pppd D 0 6356 1 0x80004006 Aug 30 05:35:00 10.20.22.1 [139226.127461][ T817] Call Trace: Aug 30 05:35:00 10.20.22.1 [139226.151344][ T817] __schedule+0x374/0x750 Aug 30 05:35:00 10.20.22.1 [139226.175415][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:35:00 10.20.22.1 [139226.199929][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:35:00 10.20.22.1 [139226.224583][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:35:00 10.20.22.1 [139226.249432][ T817] __fput+0xc8/0x220 Aug 30 05:35:00 10.20.22.1 [139226.274123][ T817] task_work_run+0x57/0x90 Aug 30 05:35:00 10.20.22.1 [139226.298876][ T817] do_exit+0x317/0xa60 Aug 30 05:35:00 10.20.22.1 [139226.323378][ T817] do_group_exit+0x2e/0x90 Aug 30 05:35:00 10.20.22.1 [139226.347679][ T817] get_signal+0x11b/0x7a0 Aug 30 05:35:00 10.20.22.1 [139226.371717][ T817] do_signal+0x25/0x1f0 Aug 30 05:35:00 10.20.22.1 [139226.395603][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:35:00 10.20.22.1 [139226.419418][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:35:00 10.20.22.1 [139226.442808][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:35:00 10.20.22.1 [139226.465925][ T817] do_syscall_64+0x50/0x120 Aug 30 05:35:00 10.20.22.1 [139226.488417][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:35:00 10.20.22.1 [139226.510748][ T817] RIP: 0033:0x7ff7a56e3ae6 Aug 30 05:35:00 10.20.22.1 [139226.532459][ T817] Code: Bad RIP value. Aug 30 05:35:00 10.20.22.1 [139226.553489][ T817] RSP: 002b:00007fff0552cc88 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:35:00 10.20.22.1 [139226.595108][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007ff7a56e3ae6 Aug 30 05:35:00 10.20.22.1 [139226.636659][ T817] RDX: 0000000000000000 RSI: 00007fff0552cd90 RDI: 000000000000000d Aug 30 05:35:00 10.20.22.1 [139226.678206][ T817] RBP: 00007fff0552cd90 R08: 00007fff0552cd10 R09: 0000000000000010 Aug 30 05:35:00 10.20.22.1 [139226.720194][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:35:00 10.20.22.1 [139226.762823][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007fff0552ee10 Aug 30 05:35:00 10.20.22.1 [139226.806936][ T817] INFO: task pppd:6469 blocked for more than 128 seconds. Aug 30 05:35:00 10.20.22.1 [139226.830316][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:35:01 10.20.22.1 [139226.853643][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:35:01 10.20.22.1 [139226.900867][ T817] pppd D 0 6469 1 0x80004006 Aug 30 05:35:01 10.20.22.1 [139226.925126][ T817] Call Trace: Aug 30 05:35:01 10.20.22.1 [139226.948997][ T817] __schedule+0x374/0x750 Aug 30 05:35:01 10.20.22.1 [139226.973041][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:35:01 10.20.22.1 [139226.997529][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:35:01 10.20.22.1 [139227.022136][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:35:01 10.20.22.1 [139227.046960][ T817] __fput+0xc8/0x220 Aug 30 05:35:01 10.20.22.1 [139227.071614][ T817] task_work_run+0x57/0x90 Aug 30 05:35:01 10.20.22.1 [139227.096345][ T817] do_exit+0x317/0xa60 Aug 30 05:35:01 10.20.22.1 [139227.120807][ T817] do_group_exit+0x2e/0x90 Aug 30 05:35:01 10.20.22.1 [139227.145092][ T817] get_signal+0x11b/0x7a0 Aug 30 05:35:01 10.20.22.1 [139227.169108][ T817] do_signal+0x25/0x1f0 Aug 30 05:35:01 10.20.22.1 [139227.192851][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:35:01 10.20.22.1 [139227.216651][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:35:01 10.20.22.1 [139227.240077][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:35:01 10.20.22.1 [139227.263177][ T817] do_syscall_64+0x50/0x120 Aug 30 05:35:01 10.20.22.1 [139227.285657][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:35:01 10.20.22.1 [139227.307939][ T817] RIP: 0033:0x7f71cb0aeae6 Aug 30 05:35:01 10.20.22.1 [139227.329635][ T817] Code: Bad RIP value. Aug 30 05:35:01 10.20.22.1 [139227.350619][ T817] RSP: 002b:00007ffc18254558 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:35:01 10.20.22.1 [139227.392206][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f71cb0aeae6 Aug 30 05:35:01 10.20.22.1 [139227.433686][ T817] RDX: 0000000000000000 RSI: 00007ffc18254660 RDI: 000000000000000d Aug 30 05:35:01 10.20.22.1 [139227.475140][ T817] RBP: 00007ffc18254660 R08: 00007ffc182545e0 R09: 0000000000000010 Aug 30 05:35:01 10.20.22.1 [139227.517049][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:35:01 10.20.22.1 [139227.559595][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffc182566e0 Aug 30 05:35:01 10.20.22.1 [139227.603538][ T817] INFO: task pppd:6515 blocked for more than 129 seconds. Aug 30 05:35:01 10.20.22.1 [139227.631097][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:35:01 10.20.22.1 [139227.659116][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:35:01 10.20.22.1 [139227.708693][ T817] pppd D 0 6515 1 0x80004006 Aug 30 05:35:01 10.20.22.1 [139227.732967][ T817] Call Trace: Aug 30 05:35:01 10.20.22.1 [139227.756775][ T817] __schedule+0x374/0x750 Aug 30 05:35:01 10.20.22.1 [139227.780769][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:35:01 10.20.22.1 [139227.805180][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:35:01 10.20.22.1 [139227.829734][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:35:02 10.20.22.1 [139227.854477][ T817] __fput+0xc8/0x220 Aug 30 05:35:02 10.20.22.1 [139227.879048][ T817] task_work_run+0x57/0x90 Aug 30 05:35:02 10.20.22.1 [139227.903738][ T817] do_exit+0x317/0xa60 Aug 30 05:35:02 10.20.22.1 [139227.928124][ T817] do_group_exit+0x2e/0x90 Aug 30 05:35:02 10.20.22.1 [139227.952332][ T817] get_signal+0x11b/0x7a0 Aug 30 05:35:02 10.20.22.1 [139227.976328][ T817] do_signal+0x25/0x1f0 Aug 30 05:35:02 10.20.22.1 [139228.000006][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:35:02 10.20.22.1 [139228.024080][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:35:02 10.20.22.1 [139228.047440][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:35:02 10.20.22.1 [139228.070543][ T817] do_syscall_64+0x50/0x120 Aug 30 05:35:02 10.20.22.1 [139228.093001][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:35:02 10.20.22.1 [139228.115295][ T817] RIP: 0033:0x7f9efd834ae6 Aug 30 05:35:02 10.20.22.1 [139228.136973][ T817] Code: Bad RIP value. Aug 30 05:35:02 10.20.22.1 [139228.157989][ T817] RSP: 002b:00007ffd3f872648 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:35:02 10.20.22.1 [139228.199633][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f9efd834ae6 Aug 30 05:35:02 10.20.22.1 [139228.241193][ T817] RDX: 0000000000000000 RSI: 00007ffd3f872750 RDI: 000000000000000d Aug 30 05:35:02 10.20.22.1 [139228.282785][ T817] RBP: 00007ffd3f872750 R08: 00007ffd3f8726d0 R09: 0000000000000010 Aug 30 05:35:02 10.20.22.1 [139228.324770][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:35:02 10.20.22.1 [139228.367369][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007ffd3f8747d0 Aug 30 05:35:02 10.20.22.1 [139228.411501][ T817] INFO: task pppd:6518 blocked for more than 130 seconds. Aug 30 05:35:02 10.20.22.1 [139228.439682][ T817] Tainted: G O 5.8.5 #1 Aug 30 05:35:02 10.20.22.1 [139228.463079][ T817] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 30 05:35:02 10.20.22.1 [139228.510400][ T817] pppd D 0 6518 1 0x80004006 Aug 30 05:35:02 10.20.22.1 [139228.534720][ T817] Call Trace: Aug 30 05:35:02 10.20.22.1 [139228.558603][ T817] __schedule+0x374/0x750 Aug 30 05:35:02 10.20.22.1 [139228.582648][ T817] schedule_preempt_disabled+0x50/0xc0 Aug 30 05:35:02 10.20.22.1 [139228.607138][ T817] __mutex_lock.constprop.0+0x15d/0x490 Aug 30 05:35:02 10.20.22.1 [139228.631765][ T817] ppp_release+0xa8/0xe0 [ppp_generic] Aug 30 05:35:02 10.20.22.1 [139228.656590][ T817] __fput+0xc8/0x220 Aug 30 05:35:02 10.20.22.1 [139228.681210][ T817] task_work_run+0x57/0x90 Aug 30 05:35:02 10.20.22.1 [139228.705908][ T817] do_exit+0x317/0xa60 Aug 30 05:35:02 10.20.22.1 [139228.730378][ T817] do_group_exit+0x2e/0x90 Aug 30 05:35:02 10.20.22.1 [139228.754737][ T817] get_signal+0x11b/0x7a0 Aug 30 05:35:02 10.20.22.1 [139228.778756][ T817] do_signal+0x25/0x1f0 Aug 30 05:35:02 10.20.22.1 [139228.802429][ T817] ? ktime_get_ts64+0x3e/0xe0 Aug 30 05:35:02 10.20.22.1 [139228.826213][ T817] ? _copy_to_user+0x22/0x30 Aug 30 05:35:03 10.20.22.1 [139228.849579][ T817] __prepare_exit_to_usermode+0xd6/0x140 Aug 30 05:35:03 10.20.22.1 [139228.872687][ T817] do_syscall_64+0x50/0x120 Aug 30 05:35:03 10.20.22.1 [139228.895197][ T817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 30 05:35:03 10.20.22.1 [139228.917506][ T817] RIP: 0033:0x7f24f2125ae6 Aug 30 05:35:03 10.20.22.1 [139228.939181][ T817] Code: Bad RIP value. Aug 30 05:35:03 10.20.22.1 [139228.960199][ T817] RSP: 002b:00007fff2581e1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 Aug 30 05:35:03 10.20.22.1 [139229.001783][ T817] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f24f2125ae6 Aug 30 05:35:03 10.20.22.1 [139229.043314][ T817] RDX: 0000000000000000 RSI: 00007fff2581e2d0 RDI: 000000000000000d Aug 30 05:35:03 10.20.22.1 [139229.084704][ T817] RBP: 00007fff2581e2d0 R08: 00007fff2581e250 R09: 0000000000000010 Aug 30 05:35:03 10.20.22.1 [139229.126477][ T817] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001000 Aug 30 05:35:03 10.20.22.1 [139229.168852][ T817] R13: 000000000000000c R14: 0000000000000000 R15: 00007fff25820350 Best regards, Martin
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