From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Pirko Subject: Re: [PATCH net] net: sched: don't use GFP_KERNEL under spin lock Date: Tue, 5 Sep 2017 14:52:21 +0200 Message-ID: <20170905125221.GA7936@nanopsycho> References: <20170905105442.30972-1-jakub.kicinski@netronome.com> <20170905115948.2fd38785@cakuba.netronome.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, oss-drivers@netronome.com To: Jakub Kicinski Return-path: Received: from mail-wr0-f194.google.com ([209.85.128.194]:34381 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751002AbdIEMwZ (ORCPT ); Tue, 5 Sep 2017 08:52:25 -0400 Received: by mail-wr0-f194.google.com with SMTP id n33so1453690wrn.1 for ; Tue, 05 Sep 2017 05:52:24 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20170905115948.2fd38785@cakuba.netronome.com> Sender: netdev-owner@vger.kernel.org List-ID: Tue, Sep 05, 2017 at 12:59:48PM CEST, kubakici@wp.pl wrote: >Jiri, FWIW I also just noticed these, but they seem related to the >earlier TC chain work? What do you do to trigger this? > >unreferenced object 0xffff8807466f70c8 (size 64): > comm "tc", pid 1812, jiffies 4294932641 (age 1537.192s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 a0 83 e1 31 07 88 ff ff ...........1.... > d8 70 6f 46 07 88 ff ff d8 70 6f 46 07 88 ff ff .poF.....poF.... > backtrace: > [] kmemleak_alloc+0x28/0x50 > [] kmem_cache_alloc_trace+0x1e6/0x550 > [] tcf_chain_create+0x97/0x460 > [] tcf_block_get+0x127/0x230 > [] ingress_init+0x76/0x110 [sch_ingress] > [] qdisc_create+0x2ec/0x1100 > [] tc_modify_qdisc+0x4ea/0x1ae0 > [] rtnetlink_rcv_msg+0xa3c/0x1400 > [] netlink_rcv_skb+0x22b/0x4e0 > [] rtnetlink_rcv+0x15/0x20 > [] netlink_unicast+0x47d/0x710 > [] netlink_sendmsg+0xa7f/0x1140 > [] sock_sendmsg+0xe2/0x170 > [] ___sys_sendmsg+0x72d/0xcc0 > [] __sys_sendmsg+0xe2/0x260 > [] SyS_sendmsg+0x12/0x20 >unreferenced object 0xffff88074db6c008 (size 64): > comm "tc", pid 2097, jiffies 4294953636 (age 1453.212s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 60 a6 d1 31 07 88 ff ff ........`..1.... > 18 c0 b6 4d 07 88 ff ff 18 c0 b6 4d 07 88 ff ff ...M.......M.... > backtrace: > [] kmemleak_alloc+0x28/0x50 > [] kmem_cache_alloc_trace+0x1e6/0x550 > [] tcf_chain_create+0x97/0x460 > [] tcf_block_get+0x127/0x230 > [] ingress_init+0x76/0x110 [sch_ingress] > [] qdisc_create+0x2ec/0x1100 > [] tc_modify_qdisc+0x4ea/0x1ae0 > [] rtnetlink_rcv_msg+0xa3c/0x1400 > [] netlink_rcv_skb+0x22b/0x4e0 > [] rtnetlink_rcv+0x15/0x20 > [] netlink_unicast+0x47d/0x710 > [] netlink_sendmsg+0xa7f/0x1140 > [] sock_sendmsg+0xe2/0x170 > [] ___sys_sendmsg+0x72d/0xcc0 > [] __sys_sendmsg+0xe2/0x260 > [] SyS_sendmsg+0x12/0x20 >unreferenced object 0xffff880749f82a48 (size 64): > comm "tc", pid 2381, jiffies 4294972986 (age 1375.812s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 c0 b7 31 31 07 88 ff ff ..........11.... > 58 2a f8 49 07 88 ff ff 58 2a f8 49 07 88 ff ff X*.I....X*.I.... > backtrace: > [] kmemleak_alloc+0x28/0x50 > [] kmem_cache_alloc_trace+0x1e6/0x550 > [] tcf_chain_create+0x97/0x460 > [] tcf_block_get+0x127/0x230 > [] ingress_init+0x76/0x110 [sch_ingress] > [] qdisc_create+0x2ec/0x1100 > [] tc_modify_qdisc+0x4ea/0x1ae0 > [] rtnetlink_rcv_msg+0xa3c/0x1400 > [] netlink_rcv_skb+0x22b/0x4e0 > [] rtnetlink_rcv+0x15/0x20 > [] netlink_unicast+0x47d/0x710 > [] netlink_sendmsg+0xa7f/0x1140 > [] sock_sendmsg+0xe2/0x170 > [] ___sys_sendmsg+0x72d/0xcc0 > [] __sys_sendmsg+0xe2/0x260 > [] SyS_sendmsg+0x12/0x20 >unreferenced object 0xffff8803fd855a08 (size 64): > comm "tc", pid 2663, jiffies 4294992152 (age 1299.328s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 20 49 80 31 07 88 ff ff ........ I.1.... > 18 5a 85 fd 03 88 ff ff 18 5a 85 fd 03 88 ff ff .Z.......Z...... > backtrace: > [] kmemleak_alloc+0x28/0x50 > [] kmem_cache_alloc_trace+0x1e6/0x550 > [] tcf_chain_create+0x97/0x460 > [] tcf_block_get+0x127/0x230 > [] ingress_init+0x76/0x110 [sch_ingress] > [] qdisc_create+0x2ec/0x1100 > [] tc_modify_qdisc+0x4ea/0x1ae0 > [] rtnetlink_rcv_msg+0xa3c/0x1400 > [] netlink_rcv_skb+0x22b/0x4e0 > [] rtnetlink_rcv+0x15/0x20 > [] netlink_unicast+0x47d/0x710 > [] netlink_sendmsg+0xa7f/0x1140 > [] sock_sendmsg+0xe2/0x170 > [] ___sys_sendmsg+0x72d/0xcc0 > [] __sys_sendmsg+0xe2/0x260 > [] SyS_sendmsg+0x12/0x20 >unreferenced object 0xffff88071b096f28 (size 64): > comm "tc", pid 2943, jiffies 4295013397 (age 1214.352s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 c0 37 e7 30 07 88 ff ff .........7.0.... > 38 6f 09 1b 07 88 ff ff 38 6f 09 1b 07 88 ff ff 8o......8o...... > backtrace: > [] kmemleak_alloc+0x28/0x50 > [] kmem_cache_alloc_trace+0x1e6/0x550 > [] tcf_chain_create+0x97/0x460 > [] tcf_block_get+0x127/0x230 > [] ingress_init+0x76/0x110 [sch_ingress] > [] qdisc_create+0x2ec/0x1100 > [] tc_modify_qdisc+0x4ea/0x1ae0 > [] rtnetlink_rcv_msg+0xa3c/0x1400 > [] netlink_rcv_skb+0x22b/0x4e0 > [] rtnetlink_rcv+0x15/0x20 > [] netlink_unicast+0x47d/0x710 > [] netlink_sendmsg+0xa7f/0x1140 > [] sock_sendmsg+0xe2/0x170 > [] ___sys_sendmsg+0x72d/0xcc0 > [] __sys_sendmsg+0xe2/0x260 > [] SyS_sendmsg+0x12/0x20 >unreferenced object 0xffff880731f66568 (size 64): > comm "tc", pid 3263, jiffies 4295033366 (age 1134.480s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 00 95 64 65 07 88 ff ff ..........de.... > 78 65 f6 31 07 88 ff ff 78 65 f6 31 07 88 ff ff xe.1....xe.1.... > backtrace: > [] kmemleak_alloc+0x28/0x50 > [] kmem_cache_alloc_trace+0x1e6/0x550 > [] tcf_chain_create+0x97/0x460 > [] tcf_block_get+0x127/0x230 > [] ingress_init+0x76/0x110 [sch_ingress] > [] qdisc_create+0x2ec/0x1100 > [] tc_modify_qdisc+0x4ea/0x1ae0 > [] rtnetlink_rcv_msg+0xa3c/0x1400 > [] netlink_rcv_skb+0x22b/0x4e0 > [] rtnetlink_rcv+0x15/0x20 > [] netlink_unicast+0x47d/0x710 > [] netlink_sendmsg+0xa7f/0x1140 > [] sock_sendmsg+0xe2/0x170 > [] ___sys_sendmsg+0x72d/0xcc0 > [] __sys_sendmsg+0xe2/0x260 > [] SyS_sendmsg+0x12/0x20