selftests: net: udpgso_bench.sh: RIP: 0010:lookup_reuseport

From: Naresh Kamboju
Date: Wed May 24 2023 - 03:54:39 EST

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While running selftests: net: udpgso_bench.sh on qemu-x86_64 the following
kernel crash noticed on stable rc 6.3.4-rc2 kernel.

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

Test run log:
=========

<12>[ 38.049122] kselftest: Running tests in net
TAP version 13
1..16
# selftests: net: udpgso_bench.sh
# ipv4
# tcp
# tcp tx: 230 MB/s 3905 calls/s 3905 msg/s
# tcp rx: 231 MB/s 3668 calls/s
# tcp tx: 225 MB/s 3817 calls/s 3817 msg/s
# tcp rx: 225 MB/s 3525 calls/s
# tcp tx: 225 MB/s 3820 calls/s 3820 msg/s
# tcp zerocopy
# tcp tx: 198 MB/s 3369 calls/s 3369 msg/s
# tcp rx: 197 MB/s 2855 calls/s
# tcp tx: 195 MB/s 3318 calls/s 3318 msg/s
# tcp rx: 197 MB/s 2845 calls/s
# udp
# udp rx: 8 MB/s 5811 calls/s
# udp tx: 11 MB/s 7938 calls/s 189 msg/s
# udp rx: 10 MB/s 7523 calls/s
# udp tx: 10 MB/s 7308 calls/s 174 msg/s
# udp rx: 10 MB/s 7338 calls/s
# udp gso
# udp rx: 19 MB/s 14080 calls/s
# udp tx: 118 MB/s 2012 calls/s 2012 msg/s
# udp rx: 26 MB/s 18688 calls/s
# udp tx: 117 MB/s 2000 calls/s 2000 msg/s
# udp rx: 26 MB/s 18688 calls/s
# udp tx: 118 MB/s 2008 calls/s 2008 msg/s
# udp gso zerocopy
# udp rx: 19 MB/s 13824 calls/s
# udp tx: 102 MB/s 1736 calls/s 1736 msg/s
# udp rx: 25 MB/s 18176 calls/s
# udp tx: 101 MB/s 1714 calls/s 1714 msg/s
# udp rx: 25 MB/s 18176 calls/s
# udp tx: 98 MB/s 1679 calls/s 1679 msg/s
# udp gso timestamp
# udp rx: 19 MB/s 13824 calls/s
# udp tx: 94 MB/s 1606 calls/s 1606 msg/s
# udp rx: 25 MB/s 18432 calls/s
# udp tx: 92 MB/s 1574 calls/s 1574 msg/s
# udp rx: 27 MB/s 19309 calls/s
# udp tx: 88 MB/s 1502 calls/s 1502 msg/s
# udp gso zerocopy audit
# udp rx: 19 MB/s 14080 calls/s
# udp tx: 101 MB/s 1728 calls/s 1728 msg/s
# udp rx: 25 MB/s 18432 calls/s
# udp tx: 100 MB/s 1699 calls/s 1699 msg/s
# udp rx: 26 MB/s 18688 calls/s
# udp tx: 101 MB/s 1724 calls/s 1724 msg/s
# Summary over 3.000 seconds...
# sum udp tx: 103 MB/s 5151 calls (1717/s) 5151 msgs (1717/s)
# Zerocopy acks: 5151
# udp gso timestamp audit
# udp rx: 19 MB/s 13843 calls/s
# udp tx: 92 MB/s 1571 calls/s 1571 msg/s
# udp rx: 26 MB/s 18568 calls/s
# udp tx: 95 MB/s 1614 calls/s 1614 msg/s
# udp rx: 26 MB/s 19200 calls/s
# udp tx: 93 MB/s 1589 calls/s 1589 msg/s
# Summary over 3.000 seconds...
# sum udp tx: 96 MB/s 4774 calls (1591/s) 4774 msgs (1591/s)
# Tx Timestamps: 4774 received 0 errors
# udp gso zerocopy timestamp audit
# udp rx: 18 MB/s 13312 calls/s
# udp tx: 76 MB/s 1297 calls/s 1297 msg/s
# udp rx: 26 MB/s 18524 calls/s
# udp tx: 74 MB/s 1269 calls/s 1269 msg/s
# udp rx: 25 MB/s 18176 calls/s
# udp tx: 75 MB/s 1289 calls/s 1289 msg/s
# Summary over 3.000 seconds...
# sum udp tx: 77 MB/s 3855 calls (1285/s) 3855 msgs (1285/s)
# Tx Timestamps: 3855 received 0 errors
# Zerocopy acks: 3855
# ipv6
# tcp
# tcp tx: 215 MB/s 3657 calls/s 3657 msg/s
# tcp rx: 216 MB/s 3431 calls/s
# tcp tx: 211 MB/s 3590 calls/s 3590 msg/s
# tcp rx: 211 MB/s 3319 calls/s
# tcp tx: 211 MB/s 3579 calls/s 3579 msg/s
# tcp zerocopy
# tcp tx: 191 MB/s 3245 calls/s 3245 msg/s
# tcp rx: 193 MB/s 2908 calls/s
# tcp tx: 184 MB/s 3135 calls/s 3135 msg/s
# tcp rx: 185 MB/s 2830 calls/s
# tcp tx: 191 MB/s 3254 calls/s 3254 msg/s
# udp
<4>[ 88.821235] int3: 0000 [#1] PREEMPT SMP PTI
<4>[ 88.821491] CPU: 1 PID: 561 Comm: udpgso_bench_tx Not tainted 6.3.4-rc2 #1
<4>[ 88.821576] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
BIOS 1.14.0-2 04/01/2014
<4>[ 88.821685] RIP: 0010:lookup_reuseport+0x4a/0x200
<4>[ 88.822122] Code: 74 0b 49 89 f6 0f b6 46 12 3c 01 75 07 31 c0
e9 ed 00 00 00 4d 89 cf 44 89 c5 49 89 cd 49 89 fc 0f 1f 44 00 00 8b
5c 24 50 0f <1f> 44 00 00 41 8b 45 04 41 33 45 00 8b 0d b0 c5 ed 00 44
8d 04 08
<4>[ 88.822175] RSP: 0018:ffffa95c800c0b90 EFLAGS: 00000206
<4>[ 88.822215] RAX: 0000000000000007 RBX: 0000000000001f40 RCX:
ffff966c02b66020
<4>[ 88.822228] RDX: ffff966c01a9aa00 RSI: ffff966c02801500 RDI:
ffff966c03ae2e80
<4>[ 88.822241] RBP: 00000000000093bf R08: 00000000000093bf R09:
ffffffffb0b2c8a0
<4>[ 88.822254] R10: 0000000042388386 R11: 00000000000093bf R12:
ffff966c03ae2e80
<4>[ 88.822266] R13: ffff966c02b66020 R14: ffff966c02801500 R15:
ffffffffb0b2c8a0
<4>[ 88.822312] FS: 00007f4e6ede4740(0000)
GS:ffff966c7bd00000(0000) knlGS:0000000000000000
<4>[ 88.822330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 88.822343] CR2: 000055a1c0b90bf0 CR3: 0000000103b0e000 CR4:
00000000000006e0
<4>[ 88.822438] Call Trace:
<4>[ 88.823080] <IRQ>
<4>[ 88.823274] udp6_lib_lookup2+0xf8/0x1c0
<4>[ 88.823368] __udp6_lib_lookup+0x113/0x3c0
<4>[ 88.823382] ? __wake_up_common_lock+0x79/0x190
<4>[ 88.823403] __udp6_lib_lookup_skb+0x76/0x90
<4>[ 88.823426] __udp6_lib_rcv+0x295/0x400
<4>[ 88.823440] ip6_protocol_deliver_rcu+0x34e/0x5c0
<4>[ 88.823483] ip6_input+0x60/0x110
<4>[ 88.823496] ? ip6_rcv_core+0x311/0x450
<4>[ 88.823509] ipv6_rcv+0x47/0xf0
<4>[ 88.823523] __netif_receive_skb+0x65/0x170
<4>[ 88.823539] process_backlog+0xd7/0x180
<4>[ 88.823553] __napi_poll+0x2c/0x1b0
<4>[ 88.823565] net_rx_action+0x178/0x2e0
<4>[ 88.823580] __do_softirq+0xc4/0x274
<4>[ 88.823595] do_softirq+0x7e/0xb0
<4>[ 88.823751] </IRQ>
<4>[ 88.823769] <TASK>
<4>[ 88.823773] __local_bh_enable_ip+0x6e/0x70
<4>[ 88.823786] ip6_finish_output2+0x3fc/0x560
<4>[ 88.823803] ip6_finish_output+0x1ab/0x320
<4>[ 88.823816] ip6_output+0x6b/0x130
<4>[ 88.823827] ? __pfx_ip6_finish_output+0x10/0x10
<4>[ 88.823839] ip6_send_skb+0x1e/0x80
<4>[ 88.823850] udp_v6_send_skb+0x26e/0x400
<4>[ 88.823865] udpv6_sendmsg+0xb33/0xc60
<4>[ 88.823879] ? __pfx_ip_generic_getfrag+0x10/0x10
<4>[ 88.823902] sock_sendmsg+0x42/0xa0
<4>[ 88.823915] __sys_sendto+0x281/0x2f0
<4>[ 88.823938] __x64_sys_sendto+0x21/0x30
<4>[ 88.823949] do_syscall_64+0x48/0xa0
<4>[ 88.823969] ? exit_to_user_mode_prepare+0x2a/0x80
<4>[ 88.823981] entry_SYSCALL_64_after_hwframe+0x72/0xdc
<4>[ 88.824104] RIP: 0033:0x7f4e6eef1973
<4>[ 88.824267] Code: 8b 15 91 74 0c 00 f7 d8 64 89 02 48 c7 c0 ff
ff ff ff eb b8 0f 1f 00 80 3d 71 fc 0c 00 00 41 89 ca 74 14 b8 2c 00
00 00 0f 05 <48> 3d 00 f0 ff ff 77 75 c3 0f 1f 40 00 55 48 83 ec 30 44
89 4c 24
<4>[ 88.824276] RSP: 002b:00007ffc3a3d79f8 EFLAGS: 00000202
ORIG_RAX: 000000000000002c
<4>[ 88.824293] RAX: ffffffffffffffda RBX: 00005596927cf110 RCX:
00007f4e6eef1973
<4>[ 88.824298] RDX: 00000000000005ac RSI: 00005596927cf110 RDI:
0000000000000005
<4>[ 88.824304] RBP: 0000000000000000 R08: 0000000000000000 R09:
0000000000000000
<4>[ 88.824309] R10: 0000000000000000 R11: 0000000000000202 R12:
0000000000000002
<4>[ 88.824313] R13: 0000000000000005 R14: 000000000000e628 R15:
00000000000005ac
<4>[ 88.824335] </TASK>
<4>[ 88.824377] Modules linked in: mptcp_diag tcp_diag inet_diag
ip_tables x_tables
<4>[ 88.845108] ---[ end trace 0000000000000000 ]---
<4>[ 88.845178] RIP: 0010:lookup_reuseport+0x4a/0x200
<4>[ 88.845216] Code: 74 0b 49 89 f6 0f b6 46 12 3c 01 75 07 31 c0
e9 ed 00 00 00 4d 89 cf 44 89 c5 49 89 cd 49 89 fc 0f 1f 44 00 00 8b
5c 24 50 0f <1f> 44 00 00 41 8b 45 04 41 33 45 00 8b 0d b0 c5 ed 00 44
8d 04 08
<4>[ 88.845232] RSP: 0018:ffffa95c800c0b90 EFLAGS: 00000206
<4>[ 88.845249] RAX: 0000000000000007 RBX: 0000000000001f40 RCX:
ffff966c02b66020
<4>[ 88.845257] RDX: ffff966c01a9aa00 RSI: ffff966c02801500 RDI:
ffff966c03ae2e80
<4>[ 88.845266] RBP: 00000000000093bf R08: 00000000000093bf R09:
ffffffffb0b2c8a0
<4>[ 88.845273] R10: 0000000042388386 R11: 00000000000093bf R12:
ffff966c03ae2e80
<4>[ 88.845281] R13: ffff966c02b66020 R14: ffff966c02801500 R15:
ffffffffb0b2c8a0
<4>[ 88.845290] FS: 00007f4e6ede4740(0000)
GS:ffff966c7bd00000(0000) knlGS:0000000000000000
<4>[ 88.845302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 88.845311] CR2: 000055a1c0b90bf0 CR3: 0000000103b0e000 CR4:
00000000000006e0
<0>[ 88.845862] Kernel panic - not syncing: Fatal exception in interrupt
<0>[ 88.848258] Kernel Offset: 0x2e800000 from 0xffffffff81000000
(relocation range: 0xffffffff80000000-0xffffffffbfffffff)

log:
====
- https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2QCexh5uf81VW7HjLpuo5vu2LCe
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2QCeuW0pJ8XVzYeG3rpgza2cZDW/
- https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.3.y/build/v6.3.3-364-ga37c304c022d/testrun/17170111/suite/log-parser-test/tests/

--
Linaro LKFT
https://lkft.linaro.org

Next message: Damien Le Moal: "Re: [PATCH 2/2] scsi: pm80xx: Add fatal error check for pm8001_lu_reset()"
Previous message: Niklas Schnelle: "[PATCH net-next] s390/ism: Set DMA coherent mask"
Next in thread: Jakub Kicinski: "Re: selftests: net: udpgso_bench.sh: RIP: 0010:lookup_reuseport"
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