From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Fw: [Bug 107141] New: [1177853.192071] INFO: task accel-pppd:24263 blocked for more than 120 seconds. Date: Wed, 11 Nov 2015 08:57:15 -0800 Message-ID: <20151111085715.337c6958@xeon-e3> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from mail-pa0-f49.google.com ([209.85.220.49]:35449 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752375AbbKKQ5F (ORCPT ); Wed, 11 Nov 2015 11:57:05 -0500 Received: by pasz6 with SMTP id z6so36880447pas.2 for ; Wed, 11 Nov 2015 08:57:05 -0800 (PST) Received: from xeon-e3 (static-50-53-82-155.bvtn.or.frontiernet.net. [50.53.82.155]) by smtp.gmail.com with ESMTPSA id fn4sm1226686pab.46.2015.11.11.08.57.04 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Nov 2015 08:57:04 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: Begin forwarded message: Date: Wed, 4 Nov 2015 10:46:56 +0000 From: "bugzilla-daemon@bugzilla.kernel.org" To: "shemminger@linux-foundation.org" Subject: [Bug 107141] New: [1177853.192071] INFO: task accel-pppd:24263 blocked for more than 120 seconds. https://bugzilla.kernel.org/show_bug.cgi?id=107141 Bug ID: 107141 Summary: [1177853.192071] INFO: task accel-pppd:24263 blocked for more than 120 seconds. Product: Networking Version: 2.5 Kernel Version: 4.1.12 , 4.2.0 , 4.3 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Other Assignee: shemminger@linux-foundation.org Reporter: pstaszewski@artcom.pl Regression: No Latest checked kernel where no problem exist: 3.13.0 On any kernel >4.0 I have always same problem as below: [1177853.192071] INFO: task accel-pppd:24263 blocked for more than 120 seconds. [1177853.192074] Not tainted 4.2.0 #1 [1177853.192075] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192076] accel-pppd D ffff88021fc14680 0 24263 1 0x00000000 [1177853.192079] ffff8800d6f1fd38 0000000000000082 ffff8800d6f1fde8 ffffffff81a114c0 [1177853.192081] ffff8800d6f1fdc8 ffff880215dd2f00 ffff880215dd2f00 ffff8800d6f20000 [1177853.192082] ffff880215dd2f00 ffffffff81a91324 ffffffff81a91328 00000000ffffffff [1177853.192084] Call Trace: [1177853.192090] [] schedule+0x71/0x80 [1177853.192092] [] schedule_preempt_disabled+0x9/0xb [1177853.192094] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192096] [] mutex_lock+0x13/0x24 [1177853.192098] [] ppp_ioctl+0x4a/0xb9d [1177853.192102] [] do_vfs_ioctl+0x418/0x460 [1177853.192104] [] ? _raw_spin_lock+0x9/0xb [1177853.192107] [] ? __fget+0x2a/0x69 [1177853.192108] [] SyS_ioctl+0x4e/0x7e [1177853.192110] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192111] INFO: task accel-pppd:17877 blocked for more than 120 seconds. [1177853.192112] Not tainted 4.2.0 #1 [1177853.192113] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192114] accel-pppd D ffff88021fd14680 0 17877 1 0x00000000 [1177853.192116] ffff8800d75ebb68 0000000000000082 ffff8800d75ebb48 ffff8802161c0000 [1177853.192117] ffff880215912000 ffff880215c2c680 ffff88009a4c7000 ffff8800d75ec000 [1177853.192119] ffff880215c2c680 ffffffff81a9d264 ffffffff81a9d268 00000000ffffffff [1177853.192120] Call Trace: [1177853.192122] [] schedule+0x71/0x80 [1177853.192124] [] schedule_preempt_disabled+0x9/0xb [1177853.192126] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192129] [] ? rht_key_hashfn.isra.18.constprop.53+0x18/0x24 [1177853.192130] [] mutex_lock+0x13/0x24 [1177853.192133] [] rtnl_lock+0x10/0x12 [1177853.192134] [] rtnetlink_rcv+0x11/0x28 [1177853.192136] [] netlink_unicast+0x104/0x186 [1177853.192137] [] netlink_sendmsg+0x288/0x2d9 [1177853.192139] [] sock_sendmsg_nosec+0x12/0x1d [1177853.192141] [] ___sys_sendmsg+0x192/0x217 [1177853.192144] [] ? do_wp_page+0x1de/0x324 [1177853.192146] [] ? hrtimer_start_expires.constprop.10+0x16/0x18 [1177853.192147] [] ? timerfd_read+0x209/0x232 [1177853.192149] [] ? __fget+0x2a/0x69 [1177853.192151] [] ? __fget_light+0x3c/0x48 [1177853.192153] [] __sys_sendmsg+0x3d/0x5b [1177853.192155] [] SyS_sendmsg+0xd/0x19 [1177853.192156] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192157] INFO: task accel-pppd:19818 blocked for more than 120 seconds. [1177853.192158] Not tainted 4.2.0 #1 [1177853.192159] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192159] accel-pppd D ffff88021fd14680 0 19818 1 0x00000000 [1177853.192161] ffff880215acfb68 0000000000000082 ffff880215acfb98 ffff8802161c0000 [1177853.192163] ffff880215acfb68 ffff8800d8339780 ffff88009a4c7400 ffff880215ad0000 [1177853.192164] ffff8800d8339780 ffffffff81a9d264 ffffffff81a9d268 00000000ffffffff [1177853.192165] Call Trace: [1177853.192167] [] schedule+0x71/0x80 [1177853.192169] [] schedule_preempt_disabled+0x9/0xb [1177853.192170] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192172] [] ? rht_key_hashfn.isra.18.constprop.53+0x18/0x24 [1177853.192174] [] mutex_lock+0x13/0x24 [1177853.192175] [] rtnl_lock+0x10/0x12 [1177853.192177] [] rtnetlink_rcv+0x11/0x28 [1177853.192178] [] netlink_unicast+0x104/0x186 [1177853.192179] [] netlink_sendmsg+0x288/0x2d9 [1177853.192181] [] sock_sendmsg_nosec+0x12/0x1d [1177853.192182] [] ___sys_sendmsg+0x192/0x217 [1177853.192184] [] ? do_wp_page+0x1de/0x324 [1177853.192185] [] ? hrtimer_start_expires.constprop.10+0x16/0x18 [1177853.192187] [] ? timerfd_read+0x209/0x232 [1177853.192188] [] ? __fget+0x2a/0x69 [1177853.192190] [] ? __fget_light+0x3c/0x48 [1177853.192192] [] __sys_sendmsg+0x3d/0x5b [1177853.192193] [] SyS_sendmsg+0xd/0x19 [1177853.192194] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192196] INFO: task accel-pppd:10821 blocked for more than 120 seconds. [1177853.192196] Not tainted 4.2.0 #1 [1177853.192197] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192198] accel-pppd D ffff88021fd14680 0 10821 1 0x00000000 [1177853.192199] ffff8800d771fd08 0000000000000082 ffff8800d771fcd8 ffff8802161c0000 [1177853.192201] ffff8800d7720000 ffff8801fe650bc0 ffff8800d771fce8 ffff8800d7720000 [1177853.192202] ffff8801fe650bc0 ffffffff81a9d264 ffffffff81a9d268 00000000ffffffff [1177853.192203] Call Trace: [1177853.192205] [] schedule+0x71/0x80 [1177853.192207] [] schedule_preempt_disabled+0x9/0xb [1177853.192208] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192210] [] mutex_lock+0x13/0x24 [1177853.192212] [] rtnl_lock+0x10/0x12 [1177853.192214] [] register_netdev+0x11/0x27 [1177853.192215] [] ppp_ioctl+0x2ee/0xb9d [1177853.192218] [] do_vfs_ioctl+0x418/0x460 [1177853.192219] [] ? _raw_spin_lock+0x9/0xb [1177853.192221] [] ? __fget+0x2a/0x69 [1177853.192222] [] SyS_ioctl+0x4e/0x7e [1177853.192224] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192225] INFO: task accel-pppd:24274 blocked for more than 120 seconds. [1177853.192226] Not tainted 4.2.0 #1 [1177853.192226] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192227] accel-pppd D ffff88021fc14680 0 24274 1 0x00000000 [1177853.192228] ffff88020cfa7d38 0000000000000082 ffff88020cfa7de8 ffffffff81a114c0 [1177853.192230] ffff88020cfa7dc8 ffff88021390af00 0000000000000292 ffff88020cfa8000 [1177853.192231] ffff88021390af00 ffffffff81a91324 ffffffff81a91328 00000000ffffffff [1177853.192233] Call Trace: [1177853.192234] [] schedule+0x71/0x80 [1177853.192236] [] schedule_preempt_disabled+0x9/0xb [1177853.192238] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192239] [] mutex_lock+0x13/0x24 [1177853.192241] [] ppp_ioctl+0x4a/0xb9d [1177853.192243] [] do_vfs_ioctl+0x418/0x460 [1177853.192244] [] ? _raw_spin_lock+0x9/0xb [1177853.192246] [] ? __fget+0x2a/0x69 [1177853.192247] [] SyS_ioctl+0x4e/0x7e [1177853.192248] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192250] INFO: task accel-pppd:28232 blocked for more than 120 seconds. [1177853.192250] Not tainted 4.2.0 #1 [1177853.192251] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192252] accel-pppd D ffff88021fc94680 0 28232 1 0x00000000 [1177853.192253] ffff880213ba3cb8 0000000000000082 ffff880213ba3c98 ffff8802161769c0 [1177853.192254] 00000000ffffffff ffff88020cf31780 0000000000000001 ffff880213ba4000 [1177853.192256] ffff88020cf31780 ffffffff81a9d264 ffffffff81a9d268 00000000ffffffff [1177853.192257] Call Trace: [1177853.192259] [] schedule+0x71/0x80 [1177853.192260] [] schedule_preempt_disabled+0x9/0xb [1177853.192262] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192264] [] ? full_name_hash+0x19/0x63 [1177853.192265] [] mutex_lock+0x13/0x24 [1177853.192267] [] rtnl_lock+0x10/0x12 [1177853.192269] [] devinet_ioctl+0x108/0x552 [1177853.192271] [] ? dev_get_by_name_rcu+0x34/0x56 [1177853.192272] [] ? dev_ioctl+0x455/0x59b [1177853.192274] [] inet_ioctl+0x87/0xa4 [1177853.192275] [] sock_do_ioctl+0x21/0x40 [1177853.192277] [] sock_ioctl+0x1ee/0x1fd [1177853.192278] [] do_vfs_ioctl+0x418/0x460 [1177853.192280] [] ? __fget+0x2a/0x69 [1177853.192281] [] SyS_ioctl+0x4e/0x7e [1177853.192282] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192284] INFO: task accel-pppd:2299 blocked for more than 120 seconds. [1177853.192284] Not tainted 4.2.0 #1 [1177853.192285] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192286] accel-pppd D ffff88021fd94680 0 2299 1 0x00000000 [1177853.192287] ffff88021394fd38 0000000000000082 ffff88021394fd08 ffff8802161c0bc0 [1177853.192289] ffff88021394fdc0 ffff88020cf30bc0 ffff88021394fd38 ffff880213950000 [1177853.192290] ffff88020cf30bc0 ffffffff81a91324 ffffffff81a91328 00000000ffffffff [1177853.192291] Call Trace: [1177853.192293] [] schedule+0x71/0x80 [1177853.192295] [] schedule_preempt_disabled+0x9/0xb [1177853.192296] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192298] [] mutex_lock+0x13/0x24 [1177853.192299] [] ppp_ioctl+0x531/0xb9d [1177853.192301] [] do_vfs_ioctl+0x418/0x460 [1177853.192303] [] ? __fget+0x2a/0x69 [1177853.192304] [] SyS_ioctl+0x4e/0x7e [1177853.192305] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177853.192306] INFO: task accel-pppd:6838 blocked for more than 120 seconds. [1177853.192307] Not tainted 4.2.0 #1 [1177853.192308] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177853.192308] accel-pppd D ffff88021fc14680 0 6838 1 0x00000000 [1177853.192310] ffff8800c5ca7d08 0000000000000082 00000000000380ef ffffffff81a114c0 [1177853.192311] 000000000f48ff3a ffff8800d76c3ac0 0000000000000000 ffff8800c5ca8000 [1177853.192313] ffff8800d76c3ac0 ffff880215e3cdac ffff880215e3cdb0 00000000ffffffff [1177853.192314] Call Trace: [1177853.192316] [] schedule+0x71/0x80 [1177853.192317] [] schedule_preempt_disabled+0x9/0xb [1177853.192319] [] __mutex_lock_slowpath+0xa6/0x104 [1177853.192320] [] mutex_lock+0x13/0x24 [1177853.192322] [] ppp_dev_uninit+0x62/0xae [1177853.192324] [] rollback_registered_many+0x19e/0x252 [1177853.192325] [] rollback_registered+0x29/0x38 [1177853.192327] [] unregister_netdevice_queue+0x6a/0x77 [1177853.192328] [] ppp_release+0x3f/0x73 [1177853.192330] [] __fput+0xdf/0x184 [1177853.192332] [] ____fput+0x9/0xb [1177853.192335] [] task_work_run+0x7b/0x94 [1177853.192336] [] do_notify_resume+0x40/0x44 [1177853.192338] [] int_signal+0x12/0x17 [1177973.074845] INFO: task accel-pppd:24263 blocked for more than 120 seconds. [1177973.074848] Not tainted 4.2.0 #1 [1177973.074849] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177973.074850] accel-pppd D ffff88021fc14680 0 24263 1 0x00000000 [1177973.074853] ffff8800d6f1fd38 0000000000000082 ffff8800d6f1fde8 ffffffff81a114c0 [1177973.074855] ffff8800d6f1fdc8 ffff880215dd2f00 ffff880215dd2f00 ffff8800d6f20000 [1177973.074857] ffff880215dd2f00 ffffffff81a91324 ffffffff81a91328 00000000ffffffff [1177973.074859] Call Trace: [1177973.074865] [] schedule+0x71/0x80 [1177973.074867] [] schedule_preempt_disabled+0x9/0xb [1177973.074869] [] __mutex_lock_slowpath+0xa6/0x104 [1177973.074870] [] mutex_lock+0x13/0x24 [1177973.074873] [] ppp_ioctl+0x4a/0xb9d [1177973.074877] [] do_vfs_ioctl+0x418/0x460 [1177973.074879] [] ? _raw_spin_lock+0x9/0xb [1177973.074882] [] ? __fget+0x2a/0x69 [1177973.074883] [] SyS_ioctl+0x4e/0x7e [1177973.074885] [] entry_SYSCALL_64_fastpath+0x12/0x6a [1177973.074886] INFO: task accel-pppd:17877 blocked for more than 120 seconds. [1177973.074887] Not tainted 4.2.0 #1 [1177973.074888] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1177973.074889] accel-pppd D ffff88021fd14680 0 17877 1 0x00000000 [1177973.074890] ffff8800d75ebb68 0000000000000082 ffff8800d75ebb48 ffff8802161c0000 [1177973.074892] ffff880215912000 ffff880215c2c680 ffff88009a4c7000 ffff8800d75ec000 [1177973.074893] ffff880215c2c680 ffffffff81a9d264 ffffffff81a9d268 00000000ffffffff [1177973.074895] Call Trace: [1177973.074896] [] schedule+0x71/0x80 [1177973.074898] [] schedule_preempt_disabled+0x9/0xb [1177973.074900] [] __mutex_lock_slowpath+0xa6/0x104 [1177973.074903] [] ? rht_key_hashfn.isra.18.constprop.53+0x18/0x24 [1177973.074905] [] mutex_lock+0x13/0x24 [1177973.074907] [] rtnl_lock+0x10/0x12 [1177973.074909] [] rtnetlink_rcv+0x11/0x28 [1177973.074910] [] netlink_unicast+0x104/0x186 [1177973.074912] [] netlink_sendmsg+0x288/0x2d9 [1177973.074914] [] sock_sendmsg_nosec+0x12/0x1d [1177973.074915] [] ___sys_sendmsg+0x192/0x217 [1177973.074918] [] ? do_wp_page+0x1de/0x324 [1177973.074920] [] ? hrtimer_start_expires.constprop.10+0x16/0x18 [1177973.074922] [] ? timerfd_read+0x209/0x232 [1177973.074924] [] ? __fget+0x2a/0x69 [1177973.074926] [] ? __fget_light+0x3c/0x48 [1177973.074927] [] __sys_sendmsg+0x3d/0x5b [1177973.074929] [] SyS_sendmsg+0xd/0x19 [1177973.074930] [] entry_SYSCALL_64_fastpath+0x12/0x6a -- You are receiving this mail because: You are the assignee for the bug.