linux-kernel - WARN with 5.12.17

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Message-ID: <CAK2bqVK0Q9YcpakE7_Rc6nr-E4e2GnMOgi5jJj=_Eh_1kEHLHA@mail.gmail.com>
Date:   Sat, 17 Jul 2021 12:28:53 +0100
From:   Chris Rankin <rankincj@...il.com>
To:     linux-kernel@...r.kernel.org
Subject: WARN with 5.12.17

Hi,

I have noticed this WARNING when running 5.12.17. Rebuilding the
entire kernel after a "make clean" has not helped.

Cheers,
Chris

[  138.553764] ------------[ cut here ]------------
[  138.553776] WARNING: CPU: 0 PID: 2311 at
kernel/rcu/tree_plugin.h:297 rcu_note_context_switch+0x2f/0x2b1
[  138.553799] Modules linked in: uinput hdaps ip6t_REJECT
nf_reject_ipv6 ip6table_filter ip6_tables xt_state xt_conntrack
nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c xt_tcpudp
ipt_REJECT nf_reject_ipv4 iptable_filter sunrpc coretemp ppdev
kvm_intel kvm irqbypass snd_seq_dummy snd_seq_oss snd_emu10k1_synth
snd_emux_synth iwl3945 joydev evdev snd_seq_midi_emul i2c_i801
snd_seq_virmidi iwlegacy pcspkr i2c_smbus snd_seq_midi
snd_seq_midi_event mac80211 cfg80211 snd_hda_codec_hdmi
snd_hda_codec_analog snd_hda_codec_generic snd_emu10k1 snd_hda_intel
snd_intel_dspcfg snd_util_mem libarc4 snd_hda_codec snd_ac97_codec
ac97_bus snd_rawmidi snd_hda_core thinkpad_acpi snd_seq snd_hwdep
snd_seq_device snd_pcm nvram ledtrig_audio snd_hrtimer
platform_profile snd_timer rfkill tiny_power_button parport_pc ac
battery snd parport video acpi_cpufreq soundcore button sch_fq_codel
binfmt_misc fuse ip_tables x_tables usbhid ext4 crc32c_generic crc16
mbcache jbd2 usb_storage sd_mod sr_mod cdrom
[  138.554028]  pata_acpi radeon i2c_algo_bit drm_ttm_helper ttm
pcmcia drm_kms_helper ata_piix ahci libahci syscopyarea sysfillrect
sysimgblt fb_sys_fops cec libata rc_core drm serio_raw scsi_mod
uhci_hcd e1000e yenta_socket pcmcia_rsrc pcmcia_core ptp ehci_pci
ehci_hcd drm_panel_orientation_quirks pps_core 8250 8250_base
serial_mctrl_gpio serial_core msr sha256_generic sha1_generic ipv6
crc_ccitt
[  138.554135] CPU: 0 PID: 2311 Comm: gdbus Not tainted 5.12.17 #2
[  138.554143] Hardware name: LENOVO 8742C4G/8742C4G, BIOS 7IET38WW
(1.19 ) 03/22/2011
[  138.554149] RIP: 0010:rcu_note_context_switch+0x2f/0x2b1
[  138.554160] Code: 2c 25 00 6d 01 00 41 54 49 c7 c4 80 24 02 00 55
53 89 fb 65 4c 03 25 fe d1 f7 7e 40 84 ff 75 0c 41 83 bd 1c 03 00 00
00 7e 02 <0f> 0b 65 48 8b 04 25 00 6d 01 00 83 b8 1c 03 00 00 00 0f 8e
28 02
[  138.554167] RSP: 0000:ffffc900028efc80 EFLAGS: 00010002
[  138.554176] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000102
[  138.554181] RDX: 0000000081c09214 RSI: ffffea0000fa65c0 RDI: 0000000000000000
[  138.554188] RBP: ffffc900028efce0 R08: 0000000000000000 R09: ffffea0000fa65c0
[  138.554194] R10: ffffc900028efc68 R11: 0000000000000003 R12: ffff88807dc22480
[  138.554199] R13: ffff888056416a00 R14: 0000000000000000 R15: 0000000000000000
[  138.554205] FS:  00007f94411ab640(0000) GS:ffff88807dc00000(0000)
knlGS:0000000000000000
[  138.554213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.554219] CR2: 00007f9453ea6f78 CR3: 000000005489e000 CR4: 00000000000006f0
[  138.554225] Call Trace:
[  138.554236]  __schedule+0x5e/0x4df
[  138.554250]  schedule+0x88/0xb5
[  138.554258]  io_schedule+0xd/0x2f
[  138.554266]  wait_on_page_bit_common+0x1b6/0x249
[  138.554277]  ? filemap_get_read_batch+0x133/0x133
[  138.554286]  __lock_page_or_retry+0x38/0x79
[  138.554295]  do_swap_page+0x230/0x4c4
[  138.554306]  __handle_mm_fault+0x40b/0xa30
[  138.554317]  handle_mm_fault+0x11e/0x1ea
[  138.554327]  exc_page_fault+0x2bd/0x4cc
[  138.554335]  ? asm_exc_page_fault+0x8/0x30
[  138.554344]  asm_exc_page_fault+0x1e/0x30
[  138.554351] RIP: 0033:0x7f9452a9ea17
[  138.554359] Code: 89 c2 48 3d 00 f0 ff ff 77 d0 48 83 c4 08 5d 41
5c c3 90 f3 0f 1e fa 41 54 49 89 f4 55 89 fd 48 83 ec 08 48 8b 05 29
b4 0f 00 <48> 8b 80 b8 02 00 00 48 85 c0 74 2d ff d0 48 63 d0 48 81 fa
00 f0
[  138.554367] RSP: 002b:00007f94411aa970 EFLAGS: 00010202
[  138.554374] RAX: 00007f9453ea6cc0 RBX: 0000000000000000 RCX: 00007f94411aa9c0
[  138.554380] RDX: 00007f94411aa9c8 RSI: 00007f94411aa9d0 RDI: 0000000000000001
[  138.554386] RBP: 0000000000000001 R08: 00007f94411aa9d0 R09: 0000000000000002
[  138.554392] R10: 0000000000000020 R11: 0000000000000293 R12: 00007f94411aa9d0
[  138.554397] R13: 00007f9453c18b60 R14: 00007f9434001410 R15: 000055b519b81690
[  138.554407] ---[ end trace 16c264fd475c3beb ]---