INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts. 2018/04/18 02:32:34 parsed 1 programs 2018/04/18 02:32:34 executed programs: 0 syzkaller login: [ 42.410252] IPVS: Creating netns size=2536 id=1 [ 42.438364] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.438847] IPVS: stopping backup sync thread 3805 ... [ 42.448164] IPVS: Creating netns size=2536 id=2 [ 42.458842] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.461363] IPVS: stopping backup sync thread 3816 ... [ 42.461712] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.471002] IPVS: stopping backup sync thread 3818 ... [ 42.471437] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.482598] IPVS: Creating netns size=2536 id=3 [ 42.494466] IPVS: stopping backup sync thread 3813 ... [ 42.503375] IPVS: stopping backup sync thread 3824 ... [ 42.504952] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.505300] IPVS: stopping backup sync thread 3840 ... [ 42.505717] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.514708] IPVS: Creating netns size=2536 id=4 [ 42.528243] IPVS: stopping backup sync thread 3839 ... [ 42.528587] IPVS: stopping backup sync thread 3842 ... [ 42.534701] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.534919] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.536118] IPVS: stopping backup sync thread 3859 ... [ 42.536469] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.537437] IPVS: Creating netns size=2536 id=5 [ 42.550392] IPVS: stopping backup sync thread 3867 ... [ 42.550728] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.564764] IPVS: stopping backup sync thread 3852 ... [ 42.567645] IPVS: stopping backup sync thread 3858 ... [ 42.567838] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.568365] IPVS: stopping backup sync thread 3869 ... [ 42.573609] IPVS: Creating netns size=2536 id=6 [ 42.584571] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.586288] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.602011] IPVS: Creating netns size=2536 id=7 [ 42.611552] IPVS: stopping backup sync thread 3904 ... [ 42.613118] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.630508] IPVS: stopping backup sync thread 3884 ... [ 42.632714] IPVS: stopping backup sync thread 3925 ... [ 42.632975] IPVS: stopping backup sync thread 3888 ... [ 42.632978] IPVS: stopping backup sync thread 3882 ... [ 42.636986] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.637117] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.637447] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.638644] IPVS: Creating netns size=2536 id=8 [ 42.641584] IPVS: stopping backup sync thread 3906 ... [ 42.641664] IPVS: stopping backup sync thread 3861 ... [ 42.651049] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.651181] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.655316] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.665759] IPVS: stopping backup sync thread 3933 ... [ 42.674564] IPVS: stopping backup sync thread 3930 ... [ 42.674581] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.690640] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.694648] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.694872] IPVS: stopping backup sync thread 3961 ... [ 42.704102] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.717322] IPVS: stopping backup sync thread 3927 ... [ 42.718695] IPVS: stopping backup sync thread 3963 ... [ 42.719081] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.719112] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.724230] IPVS: stopping backup sync thread 3932 ... [ 42.727366] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.939382] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.956950] IPVS: stopping backup sync thread 3977 ... [ 42.964750] IPVS: stopping backup sync thread 3949 ... [ 42.964959] IPVS: stopping backup sync thread 3938 ... [ 42.965201] IPVS: stopping backup sync thread 3972 ... [ 42.966821] IPVS: stopping backup sync thread 3974 ... [ 42.967697] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.968097] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.968337] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.968770] IPVS: stopping backup sync thread 3958 ... [ 42.969122] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.969792] IPVS: stopping backup sync thread 3937 ... [ 42.970390] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.970412] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.987175] IPVS: stopping backup sync thread 3981 ... [ 42.996804] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 42.998520] IPVS: stopping backup sync thread 4002 ... [ 43.003785] IPVS: stopping backup sync thread 4006 ... [ 43.007898] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.009044] IPVS: stopping backup sync thread 4004 ... [ 43.009483] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.009515] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.010075] IPVS: stopping backup sync thread 4008 ... [ 43.010619] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.011081] IPVS: stopping backup sync thread 4003 ... [ 43.011580] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.013532] IPVS: stopping backup sync thread 4010 ... [ 43.013638] IPVS: stopping backup sync thread 4035 ... [ 43.027413] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.028194] IPVS: stopping backup sync thread 4020 ... [ 43.034965] IPVS: stopping backup sync thread 4031 ... [ 43.043456] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.047060] IPVS: stopping backup sync thread 4037 ... [ 43.048022] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.048935] IPVS: stopping backup sync thread 4041 ... [ 43.048957] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.051564] IPVS: stopping backup sync thread 4039 ... [ 43.052349] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.052654] IPVS: stopping backup sync thread 4048 ... [ 43.052668] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.053396] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.055084] IPVS: stopping backup sync thread 4060 ... [ 43.055468] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.055625] IPVS: stopping backup sync thread 4068 ... [ 43.066159] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.082533] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.084700] IPVS: stopping backup sync thread 4073 ... [ 43.088304] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.354901] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.372607] IPVS: stopping backup sync thread 4066 ... [ 43.378882] IPVS: stopping backup sync thread 4078 ... [ 43.380990] IPVS: stopping backup sync thread 4097 ... [ 43.381006] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.387892] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.388663] IPVS: stopping backup sync thread 4075 ... [ 43.391390] IPVS: stopping backup sync thread 4086 ... [ 43.391706] IPVS: stopping backup sync thread 4093 ... [ 43.392070] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.392890] IPVS: stopping backup sync thread 4070 ... [ 43.392939] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.393597] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.393655] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.393703] IPVS: stopping backup sync thread 4080 ... [ 43.413470] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.420404] IPVS: stopping backup sync thread 4119 ... [ 43.423186] IPVS: stopping backup sync thread 4124 ... [ 43.423201] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.437885] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.438265] IPVS: stopping backup sync thread 4122 ... [ 43.442506] IPVS: stopping backup sync thread 4128 ... [ 43.442880] IPVS: stopping backup sync thread 4126 ... [ 43.443535] IPVS: stopping backup sync thread 4113 ... [ 43.446351] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.447233] IPVS: stopping backup sync thread 4144 ... [ 43.452323] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.453034] IPVS: stopping backup sync thread 4130 ... [ 43.453368] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.463099] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.463396] IPVS: stopping backup sync thread 4148 ... [ 43.463414] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.463513] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.468121] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.648396] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.666164] IPVS: stopping backup sync thread 4164 ... [ 43.670012] IPVS: stopping backup sync thread 4176 ... [ 43.672909] IPVS: stopping backup sync thread 4168 ... [ 43.673117] IPVS: stopping backup sync thread 4179 ... [ 43.673321] IPVS: stopping backup sync thread 4166 ... [ 43.673582] IPVS: stopping backup sync thread 4175 ... [ 43.673752] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.674878] IPVS: stopping backup sync thread 4162 ... [ 43.674907] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.675540] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.676386] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.678432] IPVS: stopping backup sync thread 4186 ... [ 43.678961] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.679093] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.679107] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.712614] IPVS: stopping backup sync thread 4216 ... [ 43.712937] IPVS: stopping backup sync thread 4217 ... [ 43.715198] IPVS: stopping backup sync thread 4204 ... [ 43.717104] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.718601] IPVS: stopping backup sync thread 4209 ... [ 43.718778] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.718870] IPVS: stopping backup sync thread 4212 ... [ 43.719474] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.720054] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.720338] IPVS: stopping backup sync thread 4213 ... [ 43.725330] IPVS: stopping backup sync thread 4206 ... [ 43.725500] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.726381] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.747546] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.747787] IPVS: stopping backup sync thread 4241 ... [ 43.755927] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.759821] IPVS: stopping backup sync thread 4243 ... [ 43.760642] IPVS: stopping backup sync thread 4245 ... [ 43.761167] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.761206] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.764385] IPVS: stopping backup sync thread 4247 ... [ 43.764845] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 43.987679] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.007089] IPVS: stopping backup sync thread 4269 ... [ 44.010565] IPVS: stopping backup sync thread 4255 ... [ 44.010594] IPVS: stopping backup sync thread 4272 ... [ 44.011997] IPVS: stopping backup sync thread 4276 ... [ 44.012486] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.013353] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.013899] IPVS: stopping backup sync thread 4252 ... [ 44.014576] IPVS: stopping backup sync thread 4249 ... [ 44.014913] IPVS: stopping backup sync thread 4282 ... [ 44.015236] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.015579] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.015610] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.017021] IPVS: stopping backup sync thread 4274 ... [ 44.019806] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.019821] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.048994] IPVS: stopping backup sync thread 4313 ... [ 44.050004] IPVS: stopping backup sync thread 4311 ... [ 44.054200] IPVS: stopping backup sync thread 4309 ... [ 44.054433] IPVS: stopping backup sync thread 4303 ... [ 44.054808] IPVS: stopping backup sync thread 4308 ... [ 44.054838] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.064186] IPVS: stopping backup sync thread 4301 ... [ 44.064514] IPVS: stopping backup sync thread 4305 ... [ 44.064539] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.064841] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.067842] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 44.077098] [ 44.077100] ============================================= [ 44.077101] [ INFO: possible recursive locking detected ] [ 44.077104] 4.9.94-g8683408 #3 Not tainted [ 44.077105] --------------------------------------------- [ 44.077107] syz-executor5/4334 is trying to acquire lock: [ 44.077120] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 44.077121] but task is already holding lock: [ 44.077127] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 44.077129] other info that might help us debug this: [ 44.077130] Possible unsafe locking scenario: [ 44.077130] [ 44.077130] CPU0 [ 44.077131] ---- [ 44.077133] lock(rtnl_mutex); [ 44.077135] lock(rtnl_mutex); [ 44.077136] [ 44.077136] *** DEADLOCK *** [ 44.077136] [ 44.077137] May be due to missing lock nesting notation [ 44.077137] [ 44.077139] 2 locks held by syz-executor5/4334: [ 44.077155] #0: (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 44.077164] #1: (ipvs->sync_mutex){+.+.+.}, at: [] do_ip_vs_set_ctl+0x90d/0xbd0 [ 44.077165] [ 44.077165] stack backtrace: [ 44.077169] CPU: 1 PID: 4334 Comm: syz-executor5 Not tainted 4.9.94-g8683408 #3 [ 44.077172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.077178] ffff8801d3daf480 ffffffff81d9b509 ffffffff853730e0 ffffffff853730e0 [ 44.077183] ffffffff853730e0 ffff8801d49688e8 4acaca8ea33c0e9b ffff8801d3daf640 [ 44.077188] ffffffff814258ef ffffffff84c6eca0 ffffffff84fc76b0 ffffffff84c6eca4 [ 44.077189] Call Trace: [ 44.077196] [] dump_stack+0xc1/0x128 [ 44.077203] [] __lock_acquire.cold.59+0x166/0x5f8 [ 44.077211] [] ? debug_check_no_locks_freed+0x210/0x210 [ 44.077215] [] ? __lock_is_held+0xa2/0xf0 [ 44.077219] [] lock_acquire+0x130/0x3e0 [ 44.077224] [] ? rtnl_lock+0x17/0x20 [ 44.077228] [] ? rtnl_lock+0x17/0x20 [ 44.077235] [] mutex_lock_nested+0xc0/0x870 [ 44.077239] [] ? rtnl_lock+0x17/0x20 [ 44.077243] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 44.077248] [] ? qtaguid_untag+0x41a/0x620 [ 44.077253] [] ? mutex_trylock+0x3e0/0x3e0 [ 44.077256] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 44.077260] [] ? qtaguid_untag+0x31e/0x620 [ 44.077264] [] ? __lock_is_held+0xa2/0xf0 [ 44.077268] [] rtnl_lock+0x17/0x20 [ 44.077275] [] ip_mc_drop_socket+0x8c/0x230 [ 44.077279] [] inet_release+0x5b/0x1d0 [ 44.077284] [] sock_release+0x96/0x1c0 [ 44.077289] [] start_sync_thread+0xa0e/0x1ea0 [ 44.077294] [] ? ip_vs_proc_sync_conn+0x952/0x952 [ 44.077298] [] ? ip_vs_sync_conn+0x2a90/0x2a90 [ 44.077302] [] ? mark_held_locks+0xc7/0x130 [ 44.077307] [] ? mutex_lock_nested+0x572/0x870 [ 44.077311] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 44.077315] [] ? mutex_lock_nested+0x596/0x870 [ 44.077319] [] ? do_ip_vs_set_ctl+0x90d/0xbd0 [ 44.077323] [] ? mutex_trylock+0x3e0/0x3e0 [ 44.077327] [] ? memcpy+0x45/0x50 [ 44.077331] [] do_ip_vs_set_ctl+0x91f/0xbd0 [ 44.077334] [] ? ip_vs_genl_set_cmd+0x9c0/0x9c0 [ 44.077339] [] ? mutex_lock_nested+0x572/0x870 [ 44.077343] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 44.077348] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 44.077352] [] ? sock_has_perm+0x292/0x3e0 [ 44.077356] [] ? mutex_unlock+0x9/0x10 [ 44.077361] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 44.077365] [] nf_setsockopt+0x6d/0xc0 [ 44.077369] [] ip_setsockopt+0x9a/0xb0 [ 44.077374] [] tcp_setsockopt+0x88/0xe0 [ 44.077378] [] sock_common_setsockopt+0x9a/0xe0 [ 44.077382] [] SyS_setsockopt+0x166/0x260 [ 44.077385] [] ? SyS_recv+0x40/0x40 [ 44.077390] [] ? move_addr_to_kernel+0x50/0x50 [ 44.077394] [] ? do_syscall_64+0x48/0x490 [ 44.077398] [] ? SyS_recv+0x40/0x40 [ 44.077401] [] do_syscall_64+0x1a6/0x490 [ 44.077406] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 44.881513] IPVS: stopping backup sync thread 4336 ... [ 44.894882] IPVS: stopping backup sync thread 4339 ... [ 44.902469] IPVS: stopping backup sync thread 4347 ... [ 44.913314] IPVS: stopping backup sync thread 4346 ...