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Message-ID: <20191104084635.GM29418@shao2-debian>
Date: Mon, 4 Nov 2019 16:46:35 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Wally Zhao <wallyzhao@...il.com>
Cc: vyasevich@...il.com, nhorman@...driver.com,
marcelo.leitner@...il.com, davem@...emloft.net,
linux-sctp@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, wally.zhao@...ia-sbell.com,
Wally Zhao <wallyzhao@...il.com>, lkp@...ts.01.org
Subject: [sctp] 327fecdaf3: BUG:kernel_NULL_pointer_dereference,address
FYI, we noticed the following commit (built with gcc-7):
commit: 327fecdaf39ab7163e6d189e19abdadf4555b002 ("[PATCH] sctp: set ooo_okay properly for Transmit Packet Steering")
url: https://github.com/0day-ci/linux/commits/Wally-Zhao/sctp-set-ooo_okay-properly-for-Transmit-Packet-Steering/20191101-171354
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------------------------------+------------+------------+
| | 52340b82cf | 327fecdaf3 |
+-------------------------------------------------------+------------+------------+
| boot_successes | 32 | 48 |
| boot_failures | 3 | 28 |
| BUG:kernel_hang_in_test_stage | 3 | 14 |
| BUG:kernel_NULL_pointer_dereference,address | 0 | 14 |
| Oops:#[##] | 0 | 14 |
| RIP:sctp_packet_transmit | 0 | 14 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 13 |
+-------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
[ 35.312661] BUG: kernel NULL pointer dereference, address: 00000000000005d8
[ 35.316225] #PF: supervisor read access in kernel mode
[ 35.319178] #PF: error_code(0x0000) - not-present page
[ 35.322078] PGD 800000021b569067 P4D 800000021b569067 PUD 21b688067 PMD 0
[ 35.325629] Oops: 0000 [#1] SMP PTI
[ 35.327965] CPU: 0 PID: 3148 Comm: trinity-c5 Not tainted 5.4.0-rc3-01107-g327fecdaf39ab #12
[ 35.332863] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 35.337932] RIP: 0010:sctp_packet_transmit+0x767/0x822
[ 35.340818] Code: 8a 45 40 d0 e8 83 e0 08 88 c2 8a 43 78 83 e0 f7 09 d0 88 43 78 41 f6 45 24 08 74 04 80 4b 7a 20 48 8b 04 24 4c 89 ee 48 89 df <83> b8 d8 05 00 00 00 0f 94 c0 c1 e0 07 88 c2 8a 43 78 83 e0 7f 09
[ 35.350270] RSP: 0000:ffffc90000003ac0 EFLAGS: 00010246
[ 35.353243] RAX: 0000000000000000 RBX: ffff888219803e00 RCX: 0000000000000007
[ 35.356838] RDX: 0000000000000000 RSI: ffff888218842800 RDI: ffff888219803e00
[ 35.360408] RBP: ffff888218842a10 R08: 00000000000002c0 R09: ffffffff81bb406d
[ 35.364054] R10: 0000000000000034 R11: 000000007f000001 R12: ffff888219802700
[ 35.367715] R13: ffff888218842800 R14: 0000000000000000 R15: ffff888219803e00
[ 35.371276] FS: 0000000000000000(0000) GS:ffff88823fc00000(0063) knlGS:000000000a47b880
[ 35.376104] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
[ 35.379260] CR2: 00000000000005d8 CR3: 0000000218ee2000 CR4: 00000000000406f0
[ 35.382827] DR0: fffffffff7277000 DR1: 0000000000000000 DR2: 0000000000000000
[ 35.386346] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 35.389854] Call Trace:
[ 35.391837] <IRQ>
[ 35.393688] ? sctp_sf_do_5_1B_init+0x153/0x2b1
[ 35.396438] sctp_do_sm+0xa52/0x149b
[ 35.398853] ? tcp_rcv_established+0x345/0x396
[ 35.401502] ? tcp_v4_do_rcv+0x9b/0x167
[ 35.403981] ? tcp_v4_rcv+0x54a/0x778
[ 35.406396] ? raw_local_deliver+0x1dc/0x22c
[ 35.409022] ? raw_local_deliver+0x1f1/0x22c
[ 35.411594] ? update_group_capacity+0x23/0x193
[ 35.414340] ? cpumask_next_and+0x19/0x1a
[ 35.416826] ? update_sd_lb_stats+0x4ae/0x4d2
[ 35.419471] sctp_endpoint_bh_rcv+0x19d/0x1e1
[ 35.422148] sctp_rcv+0x98b/0xa9b
[ 35.424311] ? sock_def_readable+0x4d/0x57
[ 35.426726] ? __sock_queue_rcv_skb+0x1ad/0x1bc
[ 35.429382] ? ip_protocol_deliver_rcu+0x76/0xeb
[ 35.432068] ? __sctp_lookup_association+0x24/0x24
[ 35.434839] ip_protocol_deliver_rcu+0x76/0xeb
[ 35.437474] ip_local_deliver+0x8a/0x96
[ 35.439960] __netif_receive_skb_one_core+0x71/0x93
[ 35.442693] process_backlog+0x86/0x125
[ 35.445115] net_rx_action+0x11e/0x2b9
[ 35.447605] __do_softirq+0x151/0x2dd
[ 35.450085] do_softirq_own_stack+0x2a/0x40
[ 35.452746] </IRQ>
[ 35.454643] do_softirq+0x3f/0x56
[ 35.456910] __local_bh_enable_ip+0x49/0x58
[ 35.459619] ip_finish_output2+0x30a/0x36c
[ 35.462217] ? ip_skb_dst_mtu+0x53/0x83
[ 35.464616] ? __ip_queue_xmit+0x2a8/0x2e0
[ 35.467261] __ip_queue_xmit+0x2a8/0x2e0
[ 35.469775] ? slab_free_freelist_hook+0x19/0x68
[ 35.472823] sctp_packet_transmit+0x790/0x822
[ 35.475401] ? sctp_packet_config+0x10c/0x1fa
[ 35.478101] sctp_outq_flush_ctrl+0x124/0x20f
[ 35.481001] sctp_outq_flush+0x66/0x647
[ 35.483502] sctp_do_sm+0x1309/0x149b
[ 35.485818] ? trace_hardirqs_on+0x2e/0x3a
[ 35.488309] ? ___slab_alloc+0xcb/0x3fe
[ 35.490698] ? sctp_stream_init_ext+0x2c/0x8a
[ 35.493147] ? sctp_ulpq_tail_event+0x191/0x1a8
[ 35.495543] ? tracer_hardirqs_on+0x1b/0xf6
[ 35.497999] sctp_primitive_ASSOCIATE+0x33/0x36
[ 35.500526] sctp_sendmsg_to_asoc+0x2f2/0x48a
[ 35.502810] ? sctp_connect_new_asoc+0xe1/0x176
[ 35.505001] sctp_sendmsg+0x717/0x795
[ 35.507337] ? memblock_search_pfn_nid+0x4b/0x5f
[ 35.509960] ? sock_sendmsg_nosec+0x2b/0x3c
[ 35.512459] sock_sendmsg_nosec+0x2b/0x3c
[ 35.514721] ___sys_sendmsg+0x1a8/0x22f
[ 35.516894] ? ___might_sleep+0x3b/0x144
[ 35.519058] ? ___might_sleep+0x3b/0x144
[ 35.520991] ? timerqueue_add+0x5e/0x62
[ 35.522512] ? enqueue_hrtimer+0x90/0x9a
[ 35.524303] ? _raw_spin_unlock_irqrestore+0x19/0x2b
[ 35.526195] ? hrtimer_start_range_ns+0x1eb/0x20f
[ 35.527856] ? tracer_hardirqs_on+0x1b/0xf6
[ 35.529383] ? __sys_sendmsg+0x5e/0x91
[ 35.531387] __sys_sendmsg+0x5e/0x91
[ 35.533398] do_int80_syscall_32+0x58/0x65
[ 35.535156] entry_INT80_compat+0x87/0xa0
[ 35.537606] Modules linked in:
[ 35.539765] CR2: 00000000000005d8
[ 35.541952] ---[ end trace 1e09b73b4a0b8b3e ]---
To reproduce:
# build kernel
cd linux
cp config-5.4.0-rc3-01107-g327fecdaf39ab .config
make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Rong Chen
View attachment "config-5.4.0-rc3-01107-g327fecdaf39ab" of type "text/plain" (119227 bytes)
View attachment "job-script" of type "text/plain" (4618 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (17644 bytes)
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