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Message-ID: <202212181914.f5a305f3-yujie.liu@intel.com>
Date: Mon, 19 Dec 2022 08:33:50 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Zqiang <qiang1.zhang@...el.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <rcu@...r.kernel.org>,
<paulmck@...nel.org>, <frederic@...nel.org>,
<quic_neeraju@...cinc.com>, <joel@...lfernandes.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] rcu-tasks: Make rude RCU-Tasks work well with CPU
hotplug
Greeting,
FYI, we noticed WARNING:at_kernel/rcu/rcutorture.c:#rcu_torture_fwd_prog_cr[rcutorture] due to commit (built with gcc-11):
commit: 572a17843591d3c03ad891492939a06833fdd17d ("[PATCH v4] rcu-tasks: Make rude RCU-Tasks work well with CPU hotplug")
url: https://github.com/intel-lab-lkp/linux/commits/Zqiang/rcu-tasks-Make-rude-RCU-Tasks-work-well-with-CPU-hotplug/20221201-074127
base: https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git dev
patch link: https://lore.kernel.org/all/20221130234533.1983769-1-qiang1.zhang@intel.com/
patch subject: [PATCH v4] rcu-tasks: Make rude RCU-Tasks work well with CPU hotplug
in testcase: rcutorture
version:
with following parameters:
runtime: 300s
test: cpuhotplug
torture_type: tasks-rude
test-description: rcutorture is rcutorture kernel module load/unload test.
test-url: https://www.kernel.org/doc/Documentation/RCU/torture.txt
on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
[ 106.051532][ T583] rcu_torture_fwd_prog: Starting forward-progress test 0
[ 106.052085][ T583] rcu_torture_fwd_prog_cr: Starting forward-progress test 0
[ 133.611262][ T583] rcu_torture_fwd_prog_cr: Waiting for CBs: rcu_barrier_tasks_rude+0x0/0x10() 0
[ 146.800051][ T583] ------------[ cut here ]------------
[ 146.800411][ T583] WARNING: CPU: 1 PID: 583 at kernel/rcu/rcutorture.c:2806 rcu_torture_fwd_prog_cr+0x22c/0x2a7 [rcutorture]
[ 146.801075][ T583] Modules linked in: rcutorture torture ipmi_msghandler crc32c_intel serio_raw processor fuse
[ 146.801894][ T583] CPU: 1 PID: 583 Comm: rcu_torture_fwd Not tainted 6.1.0-rc1-00180-g572a17843591 #1 0cc09f902db70bae111a0c12c137296733dde4a9
[ 146.802916][ T583] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014
[ 146.803693][ T583] EIP: rcu_torture_fwd_prog_cr+0x22c/0x2a7 [rcutorture]
[ 146.804177][ T583] Code: 89 d8 e8 fc c5 ff ff e8 67 49 03 00 83 c4 10 84 c0 75 79 a0 96 c6 10 ef 84 c0 75 70 e8 c8 ee ff ff 84 c0 75 67 83 fe 63 7f 02 <0f> 0b 8b 45 f0 8b 15 40 25 8a c2 ff 75 e8 ff 75 e0 01 f8 2b 45 dc
[ 146.805599][ T583] EAX: 00000000 EBX: ecee3800 ECX: 00000000 EDX: 00000000
[ 146.805992][ T583] ESI: 00000000 EDI: 0000c350 EBP: ed9d5f64 ESP: ed9d5f40
[ 146.806491][ T583] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010293
[ 146.807010][ T583] CR0: 80050033 CR2: 08082ff0 CR3: 2daaf000 CR4: 000406d0
[ 146.807484][ T583] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 146.808031][ T583] DR6: fffe0ff0 DR7: 00000400
[ 146.808384][ T583] Call Trace:
[ 146.808634][ T583] rcu_torture_fwd_prog.cold+0x3b/0xee [rcutorture 6754ed9afe4685f50ef7fade6309181c73794538]
[ 146.809348][ T583] kthread+0xc8/0xf0
[ 146.809635][ T583] ? rcu_torture_fwd_prog_cbfree+0x80/0x80 [rcutorture 6754ed9afe4685f50ef7fade6309181c73794538]
[ 146.810347][ T583] ? kthread_complete_and_exit+0x20/0x20
[ 146.810734][ T583] ret_from_fork+0x1c/0x28
[ 146.811075][ T583] irq event stamp: 205883
[ 146.811400][ T583] hardirqs last enabled at (205891): [<c114bb06>] __up_console_sem+0x66/0x80
[ 146.811960][ T583] hardirqs last disabled at (205898): [<c114baed>] __up_console_sem+0x4d/0x80
[ 146.812583][ T583] softirqs last enabled at (205880): [<c1ecb40b>] __do_softirq+0x2bb/0x440
[ 146.813079][ T583] softirqs last disabled at (205871): [<c10845f0>] call_on_stack+0x40/0x50
[ 146.813567][ T583] ---[ end trace 0000000000000000 ]---
[ 146.813926][ T583] rcu_torture_fwd_prog_cr Duration 2411 barrier: 3960 pending 50000 n_launders: 0 n_launders_sa: 0 n_max_gps: 0 n_max_cbs: 50000 cver 1 gps 0
[ 147.914266][ T583] rcu_torture_fwd_cb_hist: Callback-invocation histogram 0 (duration 6702 jiffies): 1s/10: 0:0 2s/10: 0:0 3s/10: 0:0 4s/10: 0:0 5s/10: 0:0 6s/10: 0:0 7s/10: 0:0 8s/10: 0:0 9s/10: 0:0 10s/10: 0:0 11s/10: 0:0 12s/10: 0:0 13s/10: 0:0 14s/10: 0:0 15s/10: 0:0 16s/10: 0:0 17s/10: 0:0 18s/10: 0:0 19s/10: 0:0 20s/10: 0:0 21s/10: 0:0 22s/10: 0:0 23s/10: 0:0 24s/10: 0:0 25s/10: 0:0 26s/10: 0:0 27s/10: 0:0 28s/10: 0:0 29s/10: 0:0 30s/10: 0:0 31s/10: 0:0 32s/10: 0:0 33s/10: 0:0 34s/10: 0:0 35s/10: 0:0 36s/10: 0:0 37s/10: 0:0 38s/10: 0:0 39s/10: 0:0 40s/10: 0:0 41s/10: 0:0 42s/10: 0:0 43s/10: 0:0 44s/10: 0:0 45s/10: 0:0 46s/10: 0:0 47s/10: 0:0 48s/10: 0:0 49s/10: 0:0 50s/10: 0:0 51s/10: 0:0 52s/10: 0:0 53s/10: 0:0 54s/10: 0:0 55s/10: 0:0 56s/10: 0:0 57s/10: 0:0 58s/10: 0:0 59s/10: 0:0 60s/10: 0:0 61s/10: 0:0 62s/10: 0:0 63s/10: 0:0 64s/10: 0:0 65s/10: 0:0 66s/10: 0:0 67s/10: 0:0 68s/10: 0:0 69s/10: 0:0 70s/10: 0:0 71s/10: 0:0 72s/10: 0:0 73s/10: 0:0 74s/10: 0:0 75s/10: 0:0
[ 147.914439][ T583] 76s/10: 0:0 77s/10: 0:0 78s/10: 0:0 79s/10: 0:0 80s/10: 0:0 81s/10: 0:0 82s/10: 0:0 83s/10: 0:0 84s/10: 0:0 85s/10: 0:0 86s/10: 0:0 87s/10: 0:0 88s/10: 0:0 89s/10: 0:0 90s/10: 0:0 91s/10: 0:0 92s/10: 0:0 93s/10: 0:0 94s/10: 0:0 95s/10: 0:0 96s/10: 0:0 97s/10: 0:0 98s/10: 0:0 99s/10: 0:0 100s/10: 0:0 101s/10: 29120:0 102s/10: 0:0 103s/10: 0:0 104s/10: 0:0 105s/10: 0:0 106s/10: 0:0 107s/10: 0:0 108s/10: 0:0 109s/10: 0:0 110s/10: 0:0 111s/10: 0:0 112s/10: 0:0 113s/10: 0:0 114s/10: 0:0 115s/10: 0:0 116s/10: 0:0 117s/10: 0:0 118s/10: 0:0 119s/10: 0:0 120s/10: 0:0 121s/10: 0:0 122s/10: 0:0 123s/10: 0:0 124s/10: 0:0 125s/10: 0:0 126s/10: 0:0 127s/10: 0:0 128s/10: 0:0 129s/10: 0:0 130s/10: 0:0 131s/10: 0:0 132s/10: 0:0 133s/10: 0:0 134s/10: 0:0 135s/10: 0:0 136s/10: 0:0 137s/10: 0:0 138s/10: 0:0 139s/10: 0:0 140s/10: 0:0 141s/10: 0:0 142s/10: 0:0 143s/10: 0:0 144s/10: 0:0 145s/10: 0:0 146s/10: 0:0 147s/10: 0:0 148s/10: 0:0 149s/10: 0:0 150s/10: 0:0 151s/10: 0:0
[ 147.920768][ T583] 152s/10: 0:0 153s/10: 0:0 154s/10: 0:0 155s/10: 0:0 156s/10: 0:0 157s/10: 0:0 158s/10: 0:0 159s/10: 0:0 160s/10: 20880:0
[ 149.453780][ T557] ------------[ cut here ]------------
[ 149.454322][ T557] rcu_torture_writer: rtort_pipe_count: 4
[ 149.454817][ T557] WARNING: CPU: 1 PID: 557 at kernel/rcu/rcutorture.c:1583 rcu_torture_writer+0x71d/0xc80 [rcutorture]
[ 149.455687][ T557] Modules linked in: rcutorture torture ipmi_msghandler crc32c_intel serio_raw processor fuse
[ 149.456490][ T557] CPU: 1 PID: 557 Comm: rcu_torture_wri Tainted: G W 6.1.0-rc1-00180-g572a17843591 #1 0cc09f902db70bae111a0c12c137296733dde4a9
[ 149.457660][ T557] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014
[ 149.458484][ T557] EIP: rcu_torture_writer+0x71d/0xc80 [rcutorture]
[ 149.458990][ T557] Code: 05 00 00 8d 43 f4 39 c6 74 c3 e8 0e a0 0b d2 83 ff 63 0f 87 3d 05 00 00 ff 73 fc 68 88 a0 10 ef 68 f4 9a 10 ef e8 10 01 d2 d2 <0f> 0b a1 30 c6 10 ef 83 c4 0c 85 c0 75 95 b8 01 00 00 00 87 05 30
[ 149.460472][ T557] EAX: 00000027 EBX: ef10d630 ECX: e49c0f28 EDX: e49c0f24
[ 149.461022][ T557] ESI: ef10d694 EDI: 0000004f EBP: ece35f8c ESP: ece35f18
[ 149.461539][ T557] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010292
[ 149.462101][ T557] CR0: 80050033 CR2: 08082ff0 CR3: 2daaf000 CR4: 000406d0
[ 149.462642][ T557] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 149.463172][ T557] DR6: fffe0ff0 DR7: 00000400
[ 149.463526][ T557] Call Trace:
[ 149.463795][ T557] ? lockdep_hardirqs_on_prepare+0xa4/0x160
[ 149.464333][ T557] ? _raw_spin_unlock_irqrestore+0x45/0x60
[ 149.464795][ T557] ? trace_hardirqs_on+0x35/0xe0
[ 149.465191][ T557] kthread+0xc8/0xf0
[ 149.465506][ T557] ? rcu_torture_pipe_update+0x130/0x130 [rcutorture 6754ed9afe4685f50ef7fade6309181c73794538]
[ 149.466327][ T557] ? kthread_complete_and_exit+0x20/0x20
[ 149.466771][ T557] ret_from_fork+0x1c/0x28
[ 149.467136][ T557] irq event stamp: 45753
[ 149.467457][ T557] hardirqs last enabled at (45761): [<c114bb06>] __up_console_sem+0x66/0x80
[ 149.468145][ T557] hardirqs last disabled at (45770): [<c114baed>] __up_console_sem+0x4d/0x80
[ 149.468803][ T557] softirqs last enabled at (41056): [<ef1037a0>] rcu_torture_pipe_update+0xe0/0x130 [rcutorture]
[ 149.469602][ T557] softirqs last disabled at (41054): [<ef10377c>] rcu_torture_pipe_update+0xbc/0x130 [rcutorture]
[ 149.470401][ T557] ---[ end trace 0000000000000000 ]---
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202212181914.f5a305f3-yujie.liu@intel.com
To reproduce:
# build kernel
cd linux
cp config-6.1.0-rc1-00180-g572a17843591 .config
make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 INSTALL_MOD_PATH=<mod-install-dir> modules_install
cd <mod-install-dir>
find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config-6.1.0-rc1-00180-g572a17843591" of type "text/plain" (168356 bytes)
View attachment "job-script" of type "text/plain" (5738 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (47176 bytes)
View attachment "rcutorture" of type "text/plain" (12870 bytes)
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