linux-kernel - [test_parman_init] watchdog: BUG: soft lockup

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Date:   Tue, 7 Nov 2017 17:27:30 +0800
From:   Fengguang Wu <fengguang.wu@...el.com>
To:     netdev@...r.kernel.org
Cc:     Jiri Pirko <jiri@...lanox.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: [test_parman_init] watchdog: BUG: soft lockup - CPU#1 stuck for 23s!
 [swapper/0:1]

Hello,

FYI this happens in v4.14-rc8 -- it's not necessarily a new bug.

[   49.373966] Started 10 threads, 0 failed
[   49.388339] test passed
[   49.392354] test_printf: all 260 tests passed
[   50.190776] test_bitmap: test 13: input is '0-2047:128/256' OK, Time: 8523
[   50.258456] test_bitmap: all 460506 tests passed
[   76.308035] watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [swapper/0:1]
[   76.308308] irq event stamp: 3945268
[   76.308308] hardirqs last  enabled at (3945267): [<ffffffff8385abeb>] restore_regs_and_iret+0x0/0x1d
[   76.308308] hardirqs last disabled at (3945268): [<ffffffff8385bbe8>] apic_timer_interrupt+0x98/0xb0
[   76.308308] softirqs last  enabled at (3945266): [<ffffffff8385e0fa>] __do_softirq+0x41a/0x560
[   76.308308] softirqs last disabled at (3945257): [<ffffffff8112def3>] irq_exit+0x99/0xfe
[   76.308308] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc8 #65
[   76.308308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[   76.308308] task: ffff880018fd6000 task.stack: ffff880018fe0000
[   76.308308] RIP: 0010:__asan_load8+0x67/0x83
[   76.308308] RSP: 0000:ffff880018fe7d88 EFLAGS: 00000a07 ORIG_RAX: ffffffffffffff10
[   76.308308] RAX: 1ffff10003ee3800 RBX: ffff88001f73fa08 RCX: ffffffff81d122ec
[   76.308308] RDX: ffff880018fd6000 RSI: 0000000000000007 RDI: ffff88001f71c1f8
[   76.308308] RBP: ffff880018fe7d88 R08: dffffc0000000000 R09: ffff880018fe7aa8
[   76.308308] R10: ffffed0002100770 R11: ffff880010803b7f R12: ffff88001f621e80
[   76.308308] R13: ffff88001f701838 R14: ffff88001f701848 R15: ffff88001f71c1e8
[   76.308308] FS:  0000000000000000(0000) GS:ffff880019100000(0000) knlGS:0000000000000000
[   76.308308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.308308] CR2: 00000000ffffffff CR3: 0000000004474000 CR4: 00000000000006a0
[   76.308308] Call Trace:
[   76.308308]  parman_lsort_item_remove+0x24e/0x440
[   76.308308]  parman_item_remove+0x42/0x49
[   76.308308]  test_parman_init+0x6f6/0x742
[   76.308308]  ? test_bitmap_init+0x7b/0x7b
[   76.308308]  do_one_initcall+0xc2/0x1f0
[   76.308308]  kernel_init_freeable+0x1e7/0x29b
[   76.308308]  ? rest_init+0x29b/0x29b
[   76.308308]  kernel_init+0x16/0x15f
[   76.308308]  ? rest_init+0x29b/0x29b
[   76.308308]  ret_from_fork+0x2a/0x40
[   76.308308] Code: 03 43 80 3c 01 00 75 16 48 c1 e8 03 30 d2 42 8a 04 00 84 c0 74 08 31 d2 40 38 c6 0f 9d c2 83 e2 01 eb 12 48 c1 e8 03 42 8a 04 00 <84> c0 74 16 40 38 c6 0f 9d c2 84 d2 74 0c 31 d2 be 08 00 00 00 
[   76.308308] Kernel panic - not syncing: softlockup: hung tasks
[   76.308308] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G             L  4.14.0-rc8 #65
[   76.308308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[   76.308308] Call Trace:
[   76.308308]  <IRQ>
[   76.308308]  dump_stack+0x147/0x1e0
[   76.308308]  panic+0x147/0x345
[   76.308308]  ? trace_hardirqs_off_caller+0x16e/0x196
[   76.308308]  watchdog_timer_fn+0x25f/0x293
[   76.308308]  hrtimer_run_queues+0x1bb/0x72b
[   76.308308]  ? __touch_watchdog+0x21/0x21
[   76.308308]  run_local_timers+0x25/0xa3
[   76.308308]  update_process_times+0x26/0x52
[   76.308308]  tick_nohz_handler+0x132/0x194
[   76.308308]  smp_apic_timer_interrupt+0x17b/0x351
[   76.308308]  apic_timer_interrupt+0x9d/0xb0
[   76.308308]  </IRQ>
[   76.308308] RIP: 0010:__asan_load8+0x67/0x83
[   76.308308] RSP: 0000:ffff880018fe7d88 EFLAGS: 00000a07 ORIG_RAX: ffffffffffffff10
[   76.308308] RAX: 1ffff10003ee3800 RBX: ffff88001f73fa08 RCX: ffffffff81d122ec
[   76.308308] RDX: ffff880018fd6000 RSI: 0000000000000007 RDI: ffff88001f71c1f8
[   76.308308] RBP: ffff880018fe7d88 R08: dffffc0000000000 R09: ffff880018fe7aa8
[   76.308308] R10: ffffed0002100770 R11: ffff880010803b7f R12: ffff88001f621e80
[   76.308308] R13: ffff88001f701838 R14: ffff88001f701848 R15: ffff88001f71c1e8
[   76.308308]  ? parman_lsort_item_remove+0x24e/0x440
[   76.308308]  parman_lsort_item_remove+0x24e/0x440
[   76.308308]  parman_item_remove+0x42/0x49
[   76.308308]  test_parman_init+0x6f6/0x742
[   76.308308]  ? test_bitmap_init+0x7b/0x7b
[   76.308308]  do_one_initcall+0xc2/0x1f0
[   76.308308]  kernel_init_freeable+0x1e7/0x29b
[   76.308308]  ? rest_init+0x29b/0x29b
[   76.308308]  kernel_init+0x16/0x15f
[   76.308308]  ? rest_init+0x29b/0x29b
[   76.308308]  ret_from_fork+0x2a/0x40
[   76.308308] Kernel Offset: disabled

Attached the full dmesg and kconfig.

Thanks,
Fengguang

View attachment "dmesg-quantal-ivb41-1:20171106174551:x86_64-randconfig-it0-11061641:4.14.0-rc8:65" of type "text/plain" (45935 bytes)

View attachment ".config" of type "text/plain" (112920 bytes)