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Message-ID: <20181029133951.GR24195@shao2-debian>
Date: Mon, 29 Oct 2018 21:39:51 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: "Uladzislau Rezki (Sony)" <urezki@...il.com>
Cc: Matthew Wilcox <willy@...radead.org>,
Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
LKML <linux-kernel@...r.kernel.org>,
Michal Hocko <mhocko@...e.com>,
Thomas Garnier <thgarnie@...gle.com>,
Oleksiy Avramchenko <oleksiy.avramchenko@...ymobile.com>,
Steven Rostedt <rostedt@...dmis.org>,
Joel Fernandes <joelaf@...gle.com>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...e.hu>, Tejun Heo <tj@...nel.org>,
"Uladzislau Rezki (Sony)" <urezki@...il.com>, lkp@...org
Subject: [LKP] [mm/vmalloc] 8dab1f5c1e: BUG:soft_lockup-CPU##stuck_for#s
FYI, we noticed the following commit (built with gcc-7):
commit: 8dab1f5c1e6a0b2cb17237035efaf019553d79ea ("[RFC PATCH 1/2] mm/vmalloc: keep track of free blocks for allocation")
url: https://github.com/0day-ci/linux/commits/Uladzislau-Rezki-Sony/improve-vmalloc-allocation/20181021-001707
base: https://github.com/thesofproject/linux master
in testcase: ftq
with following parameters:
nr_task: 100%
samples: 100000ss
test: add
freq: 1000
ucode: 0xb00002e
cpufreq_governor: performance
test-description: The FTQ benchmarks measure hardware and software interference or 'noise' on a node from the applications perspective.
test-url: https://github.com/rminnich/ftq
on test machine: 192 threads Intel(R) Xeon(R) CPU E7-8890 v4 @ 2.20GHz with 512G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-----------------------------------------------------------------+------------+------------+
| | dd52cb8790 | 8dab1f5c1e |
+-----------------------------------------------------------------+------------+------------+
| boot_successes | 36 | 0 |
| boot_failures | 11 | 12 |
| WARNING:stack_recursion | 11 | |
| WARNING:at#for_ip_swapgs_restore_regs_and_return_to_usermode/0x | 10 | |
| WARNING:stack_going_in_the_wrong_direction?ip=_cond_resched/0x | 1 | |
| WARNING:stack_going_in_the_wrong_direction?ip=__schedule/0x | 1 | |
| BUG:soft_lockup-CPU##stuck_for#s | 0 | 11 |
| RIP:pcpu_get_vm_areas | 0 | 12 |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 0 | 11 |
| kernel_BUG_at_mm/vmalloc.c | 0 | 1 |
| invalid_opcode:#[##] | 0 | 1 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 1 |
+-----------------------------------------------------------------+------------+------------+
[ 37.496001] watchdog: BUG: soft lockup - CPU#97 stuck for 22s! [kworker/97:1:825]
[ 37.496001] Modules linked in:
[ 37.496001] CPU: 97 PID: 825 Comm: kworker/97:1 Not tainted 4.17.0-rc7-00044-g8dab1f5 #1
[ 37.496001] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRBDXSD1.86B.0338.R00.1603162127 03/16/2016
[ 37.496001] Workqueue: events pcpu_balance_workfn
[ 37.496001] RIP: 0010:pcpu_get_vm_areas+0x464/0xa90
[ 37.496001] RSP: 0000:ffffc9000e57bd50 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff13
[ 37.496001] RAX: ffff885bf9eaa078 RBX: ffff885bf9eaa048 RCX: ffff885bf9eaa078
[ 37.496001] RDX: ffff885bf9eaa088 RSI: ffffe8c00d000000 RDI: 0000000000000000
[ 37.496001] RBP: ffffe8e00d000000 R08: ffffffff82516cd0 R09: ffff883bf9b19260
[ 37.496001] R10: ffff881c0ec03038 R11: ffff881c0ec03028 R12: ffff885bf9a8b1c0
[ 37.496001] R13: ffff885bf9b9fea0 R14: 0000000000000010 R15: ffff885bf9a8b1a0
[ 37.496001] FS: 0000000000000000(0000) GS:ffff881c0f840000(0000) knlGS:0000000000000000
[ 37.496001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 37.496001] CR2: 0000000000000000 CR3: 000000000240a001 CR4: 00000000003606e0
[ 37.496001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 37.496001] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 37.496001] Call Trace:
[ 37.496001] ? __kmalloc+0x1ee/0x230
[ 37.496001] pcpu_create_chunk+0x10a/0x1b0
[ 37.496001] pcpu_balance_workfn+0x27a/0x620
[ 37.496001] ? pick_next_task_fair+0x134/0x600
[ 37.496001] ? __switch_to+0x92/0x4d0
[ 37.496001] ? put_prev_entity+0x20/0x100
[ 37.496001] process_one_work+0x182/0x3a0
[ 37.496001] worker_thread+0x3a/0x3b0
[ 37.496001] ? process_one_work+0x3a0/0x3a0
[ 37.496001] kthread+0x11e/0x140
[ 37.496001] ? kthread_associate_blkcg+0xb0/0xb0
[ 37.496001] ret_from_fork+0x35/0x40
[ 37.496001] Code: ea 01 48 21 d0 48 89 43 08 48 8b 05 7f e0 c7 01 48 85 c0 0f 84 bd 03 00 00 48 8b 33 eb 03 48 89 c8 48 3b 70 e8 48 8d 50 10 72 12 <48> 8b 78 e0 48 39 7b 08 0f 86 91 05 00 00 48 8d 50 08 48 8b 0a
[ 37.496001] Kernel panic - not syncing: softlockup: hung tasks
[ 37.496001] CPU: 97 PID: 825 Comm: kworker/97:1 Tainted: G L 4.17.0-rc7-00044-g8dab1f5 #1
[ 37.496001] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRBDXSD1.86B.0338.R00.1603162127 03/16/2016
[ 37.496001] Workqueue: events pcpu_balance_workfn
[ 37.496001] Call Trace:
[ 37.496001] <IRQ>
[ 37.496001] dump_stack+0x5c/0x7b
[ 37.496001] panic+0xd5/0x242
[ 37.496001] watchdog_timer_fn+0x20f/0x220
[ 37.496001] ? watchdog+0x30/0x30
[ 37.496001] __hrtimer_run_queues+0xfa/0x290
[ 37.496001] hrtimer_interrupt+0xe5/0x240
[ 37.496001] smp_apic_timer_interrupt+0x62/0x140
[ 37.496001] apic_timer_interrupt+0xf/0x20
[ 37.496001] </IRQ>
[ 37.496001] RIP: 0010:pcpu_get_vm_areas+0x464/0xa90
[ 37.496001] RSP: 0000:ffffc9000e57bd50 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff13
[ 37.496001] RAX: ffff885bf9eaa078 RBX: ffff885bf9eaa048 RCX: ffff885bf9eaa078
[ 37.496001] RDX: ffff885bf9eaa088 RSI: ffffe8c00d000000 RDI: 0000000000000000
[ 37.496001] RBP: ffffe8e00d000000 R08: ffffffff82516cd0 R09: ffff883bf9b19260
[ 37.496001] R10: ffff881c0ec03038 R11: ffff881c0ec03028 R12: ffff885bf9a8b1c0
[ 37.496001] R13: ffff885bf9b9fea0 R14: 0000000000000010 R15: ffff885bf9a8b1a0
[ 37.496001] ? __kmalloc+0x1ee/0x230
[ 37.496001] pcpu_create_chunk+0x10a/0x1b0
[ 37.496001] pcpu_balance_workfn+0x27a/0x620
[ 37.496001] ? pick_next_task_fair+0x134/0x600
[ 37.496001] ? __switch_to+0x92/0x4d0
[ 37.496001] ? put_prev_entity+0x20/0x100
[ 37.496001] process_one_work+0x182/0x3a0
[ 37.496001] worker_thread+0x3a/0x3b0
[ 37.496001] ? process_one_work+0x3a0/0x3a0
[ 37.496001] kthread+0x11e/0x140
[ 37.496001] ? kthread_associate_blkcg+0xb0/0xb0
[ 37.496001] ret_from_fork+0x35/0x40
ACPI MEMORY or I/O RESET_REG.
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Rong Chen
View attachment "config-4.17.0-rc7-00044-g8dab1f5" of type "text/plain" (164409 bytes)
View attachment "job-script" of type "text/plain" (4496 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (13392 bytes)
View attachment "job.yaml" of type "text/plain" (3650 bytes)
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