From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 917] [20.11.4-rc1][mlx5] application with MPRQ enabled crashes when receiving a packet
Date: Wed, 22 Dec 2021 17:05:12 +0000 [thread overview]
Message-ID: <bug-917-3@http.bugs.dpdk.org/> (raw)
https://bugs.dpdk.org/show_bug.cgi?id=917
Bug ID: 917
Summary: [20.11.4-rc1][mlx5] application with MPRQ enabled
crashes when receiving a packet
Product: DPDK
Version: 20.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: alialnu@nvidia.com
Target Milestone: ---
To reproduce, build with assert and debug enabled:
$ meson build --werror --buildtype=debug -Dc_args='-DRTE_ENABLE_ASSERT=1
-DRTE_LIBRTE_MLX5_DEBUG' && ninja -C build
Run the app:
$ build/app/dpdk-testpmd -n 4 -a 0000:00:07.0,rxqs_min_mprq=1,mprq_en=1 -a
0000:00:08.0,rxqs_min_mprq=1,mprq_en=1 --iova-mode="va" -- -ia --txd=8192
--rxd=8192
Then send the following packet with scapy:
>>> sendp(Ether()/IP()/TCP()/Raw(load=b'X'*1460), iface = 'ens7', count = 1)
Result:
testpmd> PANIC in mprq_buf_to_pkt():
line 893 assert "pkt->ol_flags == (1ULL << 61)" failed
12: [/lib/x86_64-linux-gnu/libc.so.6(clone+0x43) [0x7f995daa3293]]
11: [/lib/x86_64-linux-gnu/libpthread.so.0(+0x9609) [0x7f995db7c609]]
10: [build-meson/app/dpdk-testpmd(eal_thread_loop+0x5e4) [0x55de625b5c1c]]
9: [build-meson/app/dpdk-testpmd(+0x21bc8e) [0x55de62129c8e]]
8: [build-meson/app/dpdk-testpmd(+0x21bb92) [0x55de62129b92]]
7: [build-meson/app/dpdk-testpmd(+0x1e9550) [0x55de620f7550]]
6: [build-meson/app/dpdk-testpmd(+0x1e8e22) [0x55de620f6e22]]
5: [build-meson/app/dpdk-testpmd(mlx5_rx_burst_mprq_vec+0x81) [0x55de63c17271]]
4: [build-meson/app/dpdk-testpmd(+0x1d090a0) [0x55de63c170a0]]
3: [build-meson/app/dpdk-testpmd(+0x1d049e7) [0x55de63c129e7]]
2: [build-meson/app/dpdk-testpmd(__rte_panic+0xee) [0x55de6257a485]]
1: [build-meson/app/dpdk-testpmd(rte_dump_stack+0x3d) [0x55de625a80fd]]
Aborted
OS: Ubuntu 20.04
NIC: ConnectX-5
MLNX_OFED: MLNX_OFED_LINUX-5.5-1.0.3.2
FW: 16.32.1010
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