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Date:   Mon, 30 May 2022 12:16:24 -0400 (EDT)
From:   Mikulas Patocka <mpatocka@redhat.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc:     Borislav Petkov <bp@suse.de>,
        Yazen Ghannam <yazen.ghannam@amd.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Tony Luck <tony.luck@intel.com>, linux-kernel@vger.kernel.org,
        linux-edac@vger.kernel.org
Subject: Warnings when suspending to disk
Message-ID: <alpine.LRH.2.02.2205301145540.25840@file01.intranet.prod.int.rdu2.redhat.com>
User-Agent: Alpine 2.02 (LRH 1266 2009-07-14)
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Precedence: bulk

Hi

The commit 7f99cb5e60392fc3494c610776e733b68784280c ("x86/CPU/AMD: Use 
default_groups in kobj_type") causes the following warnings to be printed 
during suspend to disk and resume from disk. There are many of these 
warnings, 3 for each core.

The machine is two six-core Opterons 8435.

Mikulas


[   31.349584] PM: hibernation: hibernation entry
[   31.350319] Filesystems sync: 0.000 seconds
[   31.350417] Freezing user space processes ... (elapsed 0.001 seconds) done.
[   31.351994] OOM killer disabled.
[   31.357889] PM: hibernation: Preallocating image memory
[   34.791852] PM: hibernation: Allocated 735563 pages for snapshot
[   34.792065] PM: hibernation: Allocated 2942252 kbytes in 3.43 seconds (857.79 MB/s)
[   34.792296] Freezing remaining freezable tasks ... (elapsed 0.000 seconds) done.
[   34.793791] printk: Suspending console(s) (use no_console_suspend to debug)
[   34.795159] serial 00:03: disabled
[   34.795248] serial 00:02: disabled
[   34.824316] mptbase: ioc0: pci-suspend: pdev=0x00000000f4bc4e1a, slot=0000:02:06.0, Entering operating state [D3]
[   35.470390] amdgpu 0000:07:00.0: amdgpu: BACO reset
[   35.533783] Disabling non-boot CPUs ...
[   35.535798] smpboot: CPU 1 is now offline
[   35.537754] ------------[ cut here ]------------
[   35.537764] kernfs: can not remove 'threshold_limit', no directory
[   35.537789] WARNING: CPU: 2 PID: 21 at fs/kernfs/dir.c:1555 kernfs_remove_by_name_ns+0xa9/0xc0
[   35.537812] Modules linked in: ipt_REJECT nf_reject_ipv4 hid_generic nft_chain_nat xt_MASQUERADE xt_tcpudp nft_compat nf_tables libcrc32c crc32c_generic nfnetlink snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_pcm snd_timer usbhid snd hid soundcore cpufreq_userspace cpufreq_ondemand cpufreq_powersave cpufreq_conservative bridge stp llc ohci_pci amd64_edac edac_mce_amd kvm_amd tg3 ohci_hcd ehci_pci ptp ehci_hcd e100 pps_core kvm mii usbcore pata_serverworks k10temp irqbypass libphy i2c_piix4 usb_common pcspkr rtc_cmos floppy acpi_cpufreq processor button mousedev dmi_sysfs nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 lm85 hwmon_vid fuse configfs ip_tables x_tables ipv6 autofs4 spadfs amdgpu drm_ttm_helper ttm hwmon gpu_sched i2c_algo_bit drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt fb_sys_fops cfbcopyarea drm evdev fb font fbdev drm_panel_orientation_quirks backlight
[   35.537994] CPU: 2 PID: 21 Comm: cpuhp/2 Not tainted 5.17.0-rc2 #1
[   35.538003] Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
[   35.538008] RIP: 0010:kernfs_remove_by_name_ns+0xa9/0xc0
[   35.538052] Code: 4c 8b 6c 24 10 4c 8b 74 24 18 48 83 c4 20 c3 4c 89 e7 e8 ba d1 de ff b8 fe ff ff ff eb d9 48 c7 c7 70 6f d6 81 e8 95 30 31 00 <0f> 0b b8 fe ff ff ff eb c4 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
[   35.538060] RSP: 0018:ffff8881036d7d80 EFLAGS: 00010282
[   35.538067] RAX: 0000000000000036 RBX: ffffffff820320c8 RCX: ffff88900fc9b3c8
[   35.538071] RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff88900fc9b3c0
[   35.538076] RBP: 0000000000000000 R08: ffffffff8204da60 R09: 64206f6e202c2774
[   35.538080] R10: 726964206f6e202c R11: 2774696d696c5f64 R12: ffffffff81c0d820
[   35.538084] R13: ffffffff81d3b89a R14: ffff888103e04800 R15: ffff88900fd751f0
[   35.538089] FS:  0000000000000000(0000) GS:ffff88900fc80000(0000) knlGS:0000000000000000
[   35.538095] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.538099] CR2: 00007f8bc5d4f4b0 CR3: 0000000150296000 CR4: 00000000000006e0
[   35.538104] Call Trace:
[   35.538110]  <TASK>
[   35.538115]  remove_files+0x26/0x60
[   35.538124]  sysfs_remove_group+0x41/0xa0
[   35.538131]  sysfs_remove_groups+0x23/0x40
[   35.538137]  __kobject_del+0x1b/0xa0
[   35.538146]  kobject_del+0xf/0x20
[   35.538153]  mce_threshold_remove_device+0xd4/0x1c0
[   35.538164]  mce_cpu_pre_down+0x5c/0x70
[   35.538170]  ? mce_enable_ce+0x40/0x40
[   35.538176]  cpuhp_invoke_callback+0x2bd/0x460
[   35.538185]  ? __schedule+0x232/0x630
[   35.538195]  ? smpboot_register_percpu_thread+0xd0/0xd0
[   35.538204]  cpuhp_thread_fun+0x75/0x120
[   35.538212]  smpboot_thread_fn+0xc3/0x1c0
[   35.538220]  kthread+0xd1/0x100
[   35.538229]  ? kthread_complete_and_exit+0x20/0x20
[   35.538238]  ret_from_fork+0x1f/0x30
[   35.538248]  </TASK>
[   35.538250] ---[ end trace 0000000000000000 ]---
[   35.538254] ------------[ cut here ]------------
[   35.538256] kernfs: can not remove 'error_count', no directory
[   35.538271] WARNING: CPU: 2 PID: 21 at fs/kernfs/dir.c:1555 kernfs_remove_by_name_ns+0xa9/0xc0
[   35.538283] Modules linked in: ipt_REJECT nf_reject_ipv4 hid_generic nft_chain_nat xt_MASQUERADE xt_tcpudp nft_compat nf_tables libcrc32c crc32c_generic nfnetlink snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_pcm snd_timer usbhid snd hid soundcore cpufreq_userspace cpufreq_ondemand cpufreq_powersave cpufreq_conservative bridge stp llc ohci_pci amd64_edac edac_mce_amd kvm_amd tg3 ohci_hcd ehci_pci ptp ehci_hcd e100 pps_core kvm mii usbcore pata_serverworks k10temp irqbypass libphy i2c_piix4 usb_common pcspkr rtc_cmos floppy acpi_cpufreq processor button mousedev dmi_sysfs nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 lm85 hwmon_vid fuse configfs ip_tables x_tables ipv6 autofs4 spadfs amdgpu drm_ttm_helper ttm hwmon gpu_sched i2c_algo_bit drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt fb_sys_fops cfbcopyarea drm evdev fb font fbdev drm_panel_orientation_quirks backlight
[   35.538429] CPU: 2 PID: 21 Comm: cpuhp/2 Tainted: G        W         5.17.0-rc2 #1
[   35.538436] Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
[   35.538438] RIP: 0010:kernfs_remove_by_name_ns+0xa9/0xc0
[   35.538447] Code: 4c 8b 6c 24 10 4c 8b 74 24 18 48 83 c4 20 c3 4c 89 e7 e8 ba d1 de ff b8 fe ff ff ff eb d9 48 c7 c7 70 6f d6 81 e8 95 30 31 00 <0f> 0b b8 fe ff ff ff eb c4 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
[   35.538453] RSP: 0018:ffff8881036d7d80 EFLAGS: 00010282
[   35.538459] RAX: 0000000000000032 RBX: ffffffff820320d0 RCX: ffff88900fc9b3c8
[   35.538463] RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff88900fc9b3c0
[   35.538467] RBP: 0000000000000000 R08: ffffffff8204da60 R09: 64206f6e202c2774
[   35.538471] R10: 6f74636572696420 R11: 6f6e202c27746e75 R12: ffffffff81c0d820
[   35.538475] R13: ffffffff81d3b8bb R14: ffff888103e04800 R15: ffff88900fd751f0
[   35.538479] FS:  0000000000000000(0000) GS:ffff88900fc80000(0000) knlGS:0000000000000000
[   35.538484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.538488] CR2: 00007f8bc5d4f4b0 CR3: 0000000150296000 CR4: 00000000000006e0
[   35.538493] Call Trace:
[   35.538494]  <TASK>
[   35.538497]  remove_files+0x26/0x60
[   35.538503]  sysfs_remove_group+0x41/0xa0
[   35.538509]  sysfs_remove_groups+0x23/0x40
[   35.538515]  __kobject_del+0x1b/0xa0
[   35.538521]  kobject_del+0xf/0x20
[   35.538527]  mce_threshold_remove_device+0xd4/0x1c0
[   35.538535]  mce_cpu_pre_down+0x5c/0x70
[   35.538540]  ? mce_enable_ce+0x40/0x40
[   35.538545]  cpuhp_invoke_callback+0x2bd/0x460
[   35.538553]  ? __schedule+0x232/0x630
[   35.538562]  ? smpboot_register_percpu_thread+0xd0/0xd0
[   35.538569]  cpuhp_thread_fun+0x75/0x120
[   35.538577]  smpboot_thread_fn+0xc3/0x1c0
[   35.538585]  kthread+0xd1/0x100
[   35.538592]  ? kthread_complete_and_exit+0x20/0x20
[   35.538601]  ret_from_fork+0x1f/0x30
[   35.538609]  </TASK>
[   35.538611] ---[ end trace 0000000000000000 ]---
[   35.538614] ------------[ cut here ]------------
[   35.538615] kernfs: can not remove 'interrupt_enable', no directory
[   35.538629] WARNING: CPU: 2 PID: 21 at fs/kernfs/dir.c:1555 kernfs_remove_by_name_ns+0xa9/0xc0
[   35.538641] Modules linked in: ipt_REJECT nf_reject_ipv4 hid_generic nft_chain_nat xt_MASQUERADE xt_tcpudp nft_compat nf_tables libcrc32c crc32c_generic nfnetlink snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_pcm snd_timer usbhid snd hid soundcore cpufreq_userspace cpufreq_ondemand cpufreq_powersave cpufreq_conservative bridge stp llc ohci_pci amd64_edac edac_mce_amd kvm_amd tg3 ohci_hcd ehci_pci ptp ehci_hcd e100 pps_core kvm mii usbcore pata_serverworks k10temp irqbypass libphy i2c_piix4 usb_common pcspkr rtc_cmos floppy acpi_cpufreq processor button mousedev dmi_sysfs nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 lm85 hwmon_vid fuse configfs ip_tables x_tables ipv6 autofs4 spadfs amdgpu drm_ttm_helper ttm hwmon gpu_sched i2c_algo_bit drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt fb_sys_fops cfbcopyarea drm evdev fb font fbdev drm_panel_orientation_quirks backlight
[   35.538785] CPU: 2 PID: 21 Comm: cpuhp/2 Tainted: G        W         5.17.0-rc2 #1
[   35.538791] Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
[   35.538794] RIP: 0010:kernfs_remove_by_name_ns+0xa9/0xc0
[   35.538803] Code: 4c 8b 6c 24 10 4c 8b 74 24 18 48 83 c4 20 c3 4c 89 e7 e8 ba d1 de ff b8 fe ff ff ff eb d9 48 c7 c7 70 6f d6 81 e8 95 30 31 00 <0f> 0b b8 fe ff ff ff eb c4 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
[   35.538808] RSP: 0018:ffff8881036d7d80 EFLAGS: 00010282
[   35.538813] RAX: 0000000000000037 RBX: ffffffff820320d8 RCX: ffff88900fc9b3c8
[   35.538817] RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff88900fc9b3c0
[   35.538821] RBP: 0000000000000000 R08: ffffffff8204da60 R09: 64206f6e202c2765
[   35.538825] R10: 6964206f6e202c27 R11: 656c62616e655f74 R12: ffffffff81c0d820
[   35.538829] R13: ffffffff81d3b8aa R14: ffff888103e04800 R15: ffff88900fd751f0
[   35.538833] FS:  0000000000000000(0000) GS:ffff88900fc80000(0000) knlGS:0000000000000000
[   35.538838] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.538842] CR2: 00007f8bc5d4f4b0 CR3: 0000000150296000 CR4: 00000000000006e0
[   35.538846] Call Trace:
[   35.538848]  <TASK>
[   35.538850]  remove_files+0x26/0x60
[   35.538856]  sysfs_remove_group+0x41/0xa0
[   35.538862]  sysfs_remove_groups+0x23/0x40
[   35.538868]  __kobject_del+0x1b/0xa0
[   35.538874]  kobject_del+0xf/0x20
[   35.538880]  mce_threshold_remove_device+0xd4/0x1c0
[   35.538887]  mce_cpu_pre_down+0x5c/0x70
[   35.538893]  ? mce_enable_ce+0x40/0x40
[   35.538897]  cpuhp_invoke_callback+0x2bd/0x460
[   35.538905]  ? __schedule+0x232/0x630
[   35.538914]  ? smpboot_register_percpu_thread+0xd0/0xd0
[   35.538922]  cpuhp_thread_fun+0x75/0x120
[   35.538929]  smpboot_thread_fn+0xc3/0x1c0
[   35.538937]  kthread+0xd1/0x100
[   35.538944]  ? kthread_complete_and_exit+0x20/0x20
[   35.538953]  ret_from_fork+0x1f/0x30
[   35.538961]  </TASK>
[   35.538963] ---[ end trace 0000000000000000 ]---