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Bug
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Resolution: Unresolved
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Undefined
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None
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rhel-9.8
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None
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No
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Important
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rhel-net-core
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5
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False
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False
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None
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None
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None
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None
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Unspecified
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Unspecified
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Unspecified
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x86_64
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None
What were you trying to do that didn't work?
Trying to run multiple tests while automating xdp-tools new feature xsk-drop/xsk-tx.
What is the impact of this issue to you?
Blocking automation of xsk-drop/xsk-tx .
Please provide the package NVR for which the bug is seen:
Kernel=5.14.0-673.el9.x86_64
Package Mode used for testing
bpftool-7.5.0-804.el9.x86_64
iproute-6.17.0-2.el9.x86_64
xdp-tools-1.6.0-1.el9.x86_64
libbpf-1.5.0-3.el9.x86_64
libxdp-1.6.0-1.el9.x86_64
How reproducible is this bug?:
Always
Steps to reproduce
1. Run xdp-bench test in native mode with xsk-drop ,zero-copy and poll option
**
xdp-bench xsk-drop ens4f0np0 -q 23 --attach-mode native -C zero-copy --poll
2. After running this test xdp-bench is not getting spawn with any other options.
[root@netqe50 ~]# xdp-bench xsk-drop ens4f0np0 -q 23 --attach-mode native -vvv
Current rlimit 8388608 already >= minimum 1048576
Seems like the process is hanged and could not be terminated by pkill -f
[root@netqe50 ~]# ps -ef | grep xdp root 467247 1 99 Feb05 ? 14:59:00 xdp-bench xsk-drop ens4f0np0 -q 23 --attach-mode native -C zero-copy --poll root 1625377 1625206 0 00:52 pts/0 00:00:00 grep --color=auto xdp [root@netqe50 ~]# pkill -f xdp-bench [root@netqe50 ~]# ps -ef | grep xdp root 467247 1 99 Feb05 ? 15:06:12 xdp-bench xsk-drop ens4f0np0 -q 23 --attach-mode native -C zero-copy --poll root 1625383 1625206 0 00:59 pts/0 00:00:00 grep --color=auto xdp [root@netqe50 ~]# date Fri Feb 6 01:02:41 AM EST 2026
[root@netqe50 ~]# ps -p 467247 -o pid,stat,wchan:30,comm PID STAT WCHAN COMMAND 467247 Sl futex_do_wait xdp-bench [root@netqe50 ~]# grep -r . /proc/467247/task/*/stack /proc/467247/task/467247/stack:[<0>] futex_do_wait+0x37/0x70 /proc/467247/task/467247/stack:[<0>] __futex_wait+0x90/0x100 /proc/467247/task/467247/stack:[<0>] futex_wait+0x66/0x100 /proc/467247/task/467247/stack:[<0>] do_futex+0x138/0x1d0 /proc/467247/task/467247/stack:[<0>] __x64_sys_futex+0x73/0x1d0 /proc/467247/task/467247/stack:[<0>] do_syscall_64+0x5f/0xe0 /proc/467247/task/467247/stack:[<0>] entry_SYSCALL_64_after_hwframe+0x76/0x7e [root@netqe50 ~]#
Expected results:
xsk-drop/tx should run with zero-copy poll option
Actual results:
After running xsk-drop with zero-copy and poll option failed to spawn xdp-bench with xsk-drop with any option.
