From: kernel test robot <oliver.sang@intel.com>
To: Xiao Feng via B4 Relay <devnull+xiaofeng5.xiaomi.com@kernel.org>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<linux-kernel@vger.kernel.org>, <aubrey.li@linux.intel.com>,
<yu.c.chen@intel.com>, <ltp@lists.linux.it>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
"Juri Lelli" <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
"David Hildenbrand" <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
"Michal Hocko" <mhocko@suse.com>, Kees Cook <kees@kernel.org>,
Felix Moessbauer <felix.moessbauer@siemens.com>,
Thomas Gleixner <tglx@kernel.org>, <linux-mm@kvack.org>,
Xiao Feng <xiaofeng5@xiaomi.com>, <oliver.sang@intel.com>
Subject: Re: [PATCH] sched/fork: Fix timer_slack_ns inheritance for RT tasks
Date: Thu, 28 May 2026 12:50:39 +0800 [thread overview]
Message-ID: <202605281011.2ba77cc3-lkp@intel.com> (raw)
In-Reply-To: <20260520-sched-fork-fix-timer-slack-v1-1-d4fc937245b2@xiaomi.com>
Hello,
kernel test robot noticed "ltp.prctl08.fail" on:
commit: 2aa2f0a955c7459279e861f62c770f5f81d64f4f ("[PATCH] sched/fork: Fix timer_slack_ns inheritance for RT tasks")
url: https://github.com/intel-lab-lkp/linux/commits/Xiao-Feng-via-B4-Relay/sched-fork-Fix-timer_slack_ns-inheritance-for-RT-tasks/20260520-210956
patch link: https://lore.kernel.org/all/20260520-sched-fork-fix-timer-slack-v1-1-d4fc937245b2@xiaomi.com/
patch subject: [PATCH] sched/fork: Fix timer_slack_ns inheritance for RT tasks
in testcase: ltp
version:
with following parameters:
disk: 1HDD
fs: ext4
test: syscalls-05
config: x86_64-rhel-9.4-ltp
compiler: gcc-14
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G 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/202605281011.2ba77cc3-lkp@intel.com
2026-05-29 16:17:35 kirk -f syscalls-05 --tmp-dir /fs/sda1/tmpdir
Host information
Hostname: lkp-csl-d02
Python: 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0]
Directory: /fs/sda1/tmpdir/kirk.root/tmp0lg24sa6
Connecting to SUT: default
Suite: syscalls-05
──────────────────
...
^[[1;37mprctl02: ^[[0m^[[1;32mpass^[[0m | ^[[1;33mtainted^[[0m (0.011s)
^[[1;37mprctl08: ^[[0m^[[1;31mfail^[[0m | ^[[1;33mtainted^[[0m (0.011s) <---
^[[1;37mpreadv203: ^[[0m^[[1;36mskip^[[0m | ^[[1;33mtainted^[[0m (47.775s)
^[[1;37mprofil01: ^[[0m^[[1;32mpass^[[0m | ^[[1;33mtainted^[[0m (5.005s)
...
Execution time: 9m 8s
Disconnecting from SUT: default
Target information
──────────────────
Kernel: Linux 7.1.0-rc4+ #1 SMP PREEMPT_DYNAMIC Tue May 26 16:01:55 CST 2026
Cmdline: ip=::::lkp-csl-d02::dhcp
root=/dev/ram0
RESULT_ROOT=/result/ltp/1HDD-ext4-syscalls-05/lkp-csl-d02/debian-13-x86_64-20250902.cgz/x86_64-rhel-9.4-ltp/gcc-14/2aa2f0a955c7459279e861f62c770f5f81d64f4f/0
BOOT_IMAGE=/pkg/linux/x86_64-rhel-9.4-ltp/gcc-14/2aa2f0a955c7459279e861f62c770f5f81d64f4f/vmlinuz-7.1.0-rc4+
branch=linux-devel/devel-hourly-20260521-050335
job=/lkp/jobs/scheduled/lkp-csl-d02/ltp-1HDD-ext4-syscalls-05-debian-13-x86_64-20250902.cgz-2aa2f0a955c7-20260526-26280-5dbkeb-0.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-9.4-ltp
commit=2aa2f0a955c7459279e861f62c770f5f81d64f4f
intremap=posted_msi
acpi_rsdp=0x36983000
max_uptime=14400
LKP_SERVER=10.239.97.5
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_64-8cd7644a5-1_20260514.cgz
acpi_rsdp=0x36983000
Machine: unknown
Arch: x86_64
RAM: 114660756 kB
Swap: 0 kB
Distro: debian 13
────────────────────────
TEST SUMMARY
────────────────────────
Suite: syscalls-05
Runtime: 9m 4s
Runs: 189
Results:
Passed: 1293
Failed: 3
Broken: 0
Skipped: 38
Warnings: 0
^[[1;31mFailures:^[[0m
• prctl08
Session stopped
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260528/202605281011.2ba77cc3-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-05-28 4:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 13:07 [PATCH] sched/fork: Fix timer_slack_ns inheritance for RT tasks Xiao Feng via B4 Relay
2026-05-20 14:57 ` K Prateek Nayak
2026-05-28 4:50 ` kernel test robot [this message]
2026-05-28 5:24 ` K Prateek Nayak
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