From: kernel test robot <oliver.sang@intel.com>
To: Simon Schippers <simon.schippers@tu-dortmund.de>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
Brett Sheffield <brett@librecast.net>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <ltp@lists.linux.it>,
Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
Jason Wang <jasowangio@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
Simon Horman <horms@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
Andrew Lunn <andrew+netdev@lunn.ch>,
Tim Gebauer <tim.gebauer@tu-dortmund.de>,
<linux-doc@vger.kernel.org>,
Simon Schippers <simon.schippers@tu-dortmund.de>,
<oliver.sang@intel.com>
Subject: Re: [PATCH net v3] tun/tap & vhost-net: make qdisc backpressure opt-in via IFF_BACKPRESSURE
Date: Wed, 15 Jul 2026 22:01:46 +0800 [thread overview]
Message-ID: <202607151550.5d829a99-lkp@intel.com> (raw)
In-Reply-To: <20260709095511.168235-1-simon.schippers@tu-dortmund.de>
Hello,
kernel test robot noticed "ltp.ioctl03.fail" on:
commit: 09154ff2072e36b86ba2d92d436b7f27df153ed1 ("[PATCH net v3] tun/tap & vhost-net: make qdisc backpressure opt-in via IFF_BACKPRESSURE")
url: https://github.com/intel-lab-lkp/linux/commits/Simon-Schippers/tun-tap-vhost-net-make-qdisc-backpressure-opt-in-via-IFF_BACKPRESSURE/20260709-181234
base: https://git.kernel.org/cgit/linux/kernel/git/davem/net.git fabb881df322da25442f98d23f5fa371e3c78ec4
patch link: https://lore.kernel.org/all/20260709095511.168235-1-simon.schippers@tu-dortmund.de/
patch subject: [PATCH net v3] tun/tap & vhost-net: make qdisc backpressure opt-in via IFF_BACKPRESSURE
in testcase: ltp
version:
with following parameters:
disk: 1HDD
fs: ext4
test: syscalls-03
config: x86_64-rhel-9.4-ltp
compiler: gcc-14
test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz (Ivy Bridge) with 8G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202607151550.5d829a99-lkp@intel.com
....
^[[1;37mgetuid03: ^[[0m^[[1;32mpass^[[0m (0.028s)
^[[1;37mioctl03: ^[[0m^[[1;31mfail^[[0m (0.047s) <-----
^[[1;37mioctl05: ^[[0m^[[1;32mpass^[[0m (0.471s)
....
Execution time: 3m 35s
Disconnecting from SUT: default
Target information
──────────────────
Kernel: Linux 7.2.0-rc1+ #1 SMP PREEMPT_DYNAMIC Sun Jul 12 07:25:38 CST 2026
Cmdline: ip=::::lkp-ivb-d04::dhcp
root=/dev/ram0
RESULT_ROOT=/result/ltp/1HDD-ext4-syscalls-03/lkp-ivb-d04/debian-13-x86_64-20250902.cgz/x86_64-rhel-9.4-ltp/gcc-14/09154ff2072e36b86ba2d92d436b7f27df153ed1/0
BOOT_IMAGE=/pkg/linux/x86_64-rhel-9.4-ltp/gcc-14/09154ff2072e36b86ba2d92d436b7f27df153ed1/vmlinuz-7.2.0-rc1+
branch=linux-devel/devel-hourly-20260709-190759
job=/lkp/jobs/scheduled/lkp-ivb-d04/ltp-1HDD-ext4-syscalls-03-debian-13-x86_64-20250902.cgz-09154ff2072e-20260712-19649-tc8bu6-0.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-9.4-ltp
commit=09154ff2072e36b86ba2d92d436b7f27df153ed1
intremap=posted_msi
max_uptime=7200
LKP_SERVER=internal-lkp-server
nokaslr
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw
keep_initrds=/osimage/pkg/debian-13-x86_64-20250902.cgz/ltp-x86_64-ed2758122-1_20260711.cgz
acpi_rsdp=0x000f0490
Machine: unknown
Arch: x86_64
RAM: 6895596 kB
Swap: 0 kB
Distro: debian 13
────────────────────────
TEST SUMMARY
────────────────────────
Suite: syscalls-03
Runtime: 3m 24s
Runs: 183
Results:
Passed: 2144
Failed: 1
Broken: 0
Skipped: 222
Warnings: 0
^[[1;31mFailures:^[[0m
• ioctl03
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260715/202607151550.5d829a99-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-07-15 14:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-09 9:55 [PATCH net v3] tun/tap & vhost-net: make qdisc backpressure opt-in via IFF_BACKPRESSURE Simon Schippers
2026-07-09 16:06 ` Brett Sheffield
2026-07-14 6:57 ` Simon Schippers
2026-07-14 13:40 ` Michael S. Tsirkin
2026-07-14 16:50 ` Simon Schippers
2026-07-15 14:01 ` kernel test robot [this message]
2026-07-15 14:32 ` Simon Schippers
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