Date:   Fri, 13 Nov 2020 20:15:02 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Alexander Lobakin <alobakin@...me>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Alexander Lobakin <alobakin@...me>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, 0day robot <lkp@...el.com>,
        lkp@...ts.01.org
Subject: [net] 0b726f6b31: BUG:unable_to_handle_page_fault_for_address


Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 0b726f6b318a07644b6c2388e6e44406740f4754 ("[PATCH v3 net] net: udp: fix Fast/frag0 UDP GRO")
url: https://github.com/0day-ci/linux/commits/Alexander-Lobakin/net-udp-fix-Fast-frag0-UDP-GRO/20201110-052215
base: https://git.kernel.org/cgit/linux/kernel/git/davem/net.git 4e0396c59559264442963b349ab71f66e471f84d

in testcase: apachebench
version: 
with following parameters:

	runtime: 300s
	concurrency: 2000
	cluster: cs-localhost
	cpufreq_governor: performance
	ucode: 0x7000019

test-description: apachebench is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP) server.
test-url: https://httpd.apache.org/docs/2.4/programs/ab.html


on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 48G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>


[   28.582714] BUG: unable to handle page fault for address: fffffffffffffffa
[   28.590164] #PF: supervisor read access in kernel mode
[   28.590164] #PF: error_code(0x0000) - not-present page
[   28.590165] PGD c7e20d067 P4D c7e20d067 PUD c7e20f067 PMD 0 
[   28.590169] Oops: 0000 [#1] SMP PTI
[   28.590171] CPU: 15 PID: 0 Comm: swapper/15 Not tainted 5.10.0-rc2-00373-g0b726f6b318a #1
[   28.590172] Hardware name: Supermicro SYS-5018D-FN4T/X10SDV-8C-TLN4F, BIOS 1.1 03/02/2016
[   28.590177] RIP: 0010:__udp4_lib_rcv+0x547/0xbe0
[   28.590178] Code: 74 0a f6 45 3c 80 74 04 44 8b 4d 28 48 8b 55 58 48 83 e2 fe 74 07 8b 52 7c 85 d2 75 06 8b 95 90 00 00 00 48 8b be f0 04 00 00 <44> 8b 58 0c 8b 48 10 55 41 55 44 89 de 41 51 41 89 d1 44 89 d2 e8
[   28.590179] RSP: 0018:ffffc900003b4bb8 EFLAGS: 00010246
[   28.590180] RAX: ffffffffffffffee RBX: 0000000000000011 RCX: ffff888c7bc580e2
[   28.590181] RDX: 0000000000000002 RSI: ffff88810ddc8000 RDI: ffffffff82d68f00
[   28.590182] RBP: ffff888c7bf8f800 R08: 00000000000003b7 R09: 0000000000000000
[   28.590182] R10: 0000000000003500 R11: 0000000000000000 R12: ffff888c7bc580e2
[   28.590183] R13: ffffffff82e072b0 R14: ffffffff82d68f00 R15: 0000000000000034
[   28.590184] FS:  0000000000000000(0000) GS:ffff888c7fdc0000(0000) knlGS:0000000000000000
[   28.590185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.590186] CR2: fffffffffffffffa CR3: 0000000c7e20a006 CR4: 00000000003706e0
[   28.590186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.590187] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.590187] Call Trace:
[   28.590189]  <IRQ>
[   28.590193]  ip_protocol_deliver_rcu+0xc5/0x1c0
[   28.590196]  ip_local_deliver_finish+0x4b/0x60
[   28.738714]  ip_local_deliver+0x6e/0x140
[   28.738717]  ip_sublist_rcv_finish+0x57/0x80
[   28.738719]  ip_sublist_rcv+0x199/0x240
[   28.750730]  ip_list_rcv+0x13a/0x160
[   28.750733]  __netif_receive_skb_list_core+0x2a9/0x2e0
[   28.750736]  netif_receive_skb_list_internal+0x1d3/0x320
[   28.764743]  gro_normal_list+0x19/0x40
[   28.764747]  napi_complete_done+0x68/0x160
[   28.773197]  igb_poll+0x63/0x320
[   28.773198]  net_rx_action+0x136/0x3a0
[   28.773201]  __do_softirq+0xe1/0x2c3
[   28.773204]  asm_call_irq_on_stack+0x12/0x20
[   28.773205]  </IRQ>
[   28.773208]  do_softirq_own_stack+0x37/0x40
[   28.773211]  irq_exit_rcu+0xd2/0xe0
[   28.773213]  common_interrupt+0x74/0x140
[   28.773216]  asm_common_interrupt+0x1e/0x40
[   28.773219] RIP: 0010:cpuidle_enter_state+0xd2/0x360
[   28.773221] Code: 49 89 c5 0f 1f 44 00 00 31 ff e8 a9 5d 7a ff 45 84 ff 74 12 9c 58 f6 c4 02 0f 85 62 02 00 00 31 ff e8 32 f7 80 ff fb 45 85 f6 <0f> 88 fb 00 00 00 49 63 c6 4c 2b 2c 24 48 8d 14 40 48 8d 14 90 49
[   28.773223] RSP: 0018:ffffc90000117e80 EFLAGS: 00000202
[   28.829581] RAX: ffff888c7fdeb140 RBX: 0000000000000004 RCX: 000000000000001f
[   28.829582] RDX: 0000000000000000 RSI: 000000003cf3d30b RDI: 0000000000000000
[   28.829583] RBP: ffff888c7fdf6220 R08: 00000006a7a94966 R09: 000000000002aa70
[   28.829583] R10: 00000000000001a9 R11: ffff888c7fdea104 R12: ffffffff82ce7e00
[   28.829584] R13: 00000006a7a94966 R14: 0000000000000004 R15: 0000000000000000
[   28.829588]  cpuidle_enter+0x29/0x40
[   28.829591]  do_idle+0x1cb/0x260
[   28.829593]  cpu_startup_entry+0x19/0x20
[   28.829595]  start_secondary+0x114/0x160
[   28.829598]  secondary_startup_64_no_verify+0xc2/0xcb
[   28.829599] Modules linked in: acpi_cpufreq(-) ipmi_msghandler wmi acpi_pad ip_tables
[   28.829604] CR2: fffffffffffffffa
[   28.829609] ---[ end trace c361868dfd9e225e ]---


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Oliver Sang


View attachment "config-5.10.0-rc2-00373-g0b726f6b318a" of type "text/plain" (171269 bytes)

View attachment "job-script" of type "text/plain" (8102 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (18452 bytes)

View attachment "job.yaml" of type "text/plain" (5281 bytes)

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