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Wed, 19 Nov 2025 13:15:57 -0800 (PST) Date: Wed, 19 Nov 2025 21:15:54 +0000 From: Chris Bainbridge To: Christian Brauner Cc: James Bottomley , Ard Biesheuvel , Al Viro , linux-fsdevel@vger.kernel.org, torvalds@linux-foundation.org, jack@suse.cz, raven@themaw.net, miklos@szeredi.hu, neil@brown.name, a.hindborg@kernel.org, linux-mm@kvack.org, linux-efi@vger.kernel.org, ocfs2-devel@lists.linux.dev, kees@kernel.org, rostedt@goodmis.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, paul@paul-moore.com, casey@schaufler-ca.com, linuxppc-dev@lists.ozlabs.org, john.johansen@canonical.com, selinux@vger.kernel.org, borntraeger@linux.ibm.com, bpf@vger.kernel.org, regressions@lists.linux.dev Subject: [REGRESSION] Re: [PATCH v2 22/50] convert efivarfs Message-ID: References: <20251028174540.GN2441659@ZenIV> <20251028210805.GP2441659@ZenIV> <9f079d0c8cffb150c0decb673a12bfe1b835efc9.camel@HansenPartnership.com> <20251029193755.GU2441659@ZenIV> <20251105-aufheben-ausmusterung-4588dab8c585@brauner> <423f5cc5352c54fc21e0570daeeddc4a58e74974.camel@HansenPartnership.com> <20251105-sohlen-fenster-e7c5af1204c4@brauner> <20251105-vorbild-zutreffen-fe00d1dd98db@brauner> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20251105-vorbild-zutreffen-fe00d1dd98db@brauner> X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: C70E940005 X-Stat-Signature: dapfdzg7hdcb5ydqtqyxxrm8qx1d9z7y X-HE-Tag: 1763586959-813884 X-HE-Meta: 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 Aj8lVP6T VKL4lWOkSq5RP5QuhxOYMBACGjmD5/9POya7w6/Cfl1rJmxFCLADpdiEIoS/iyIo2FlE97S1BEB6SfqJ86GBaDX6oIa8UyWKtcx27sD2/mcD0pB8LnX8kq+p1W4WIinzqaXUc0JXlHiEJvsTMOyY7ZstQNSSMndukC9+StkduIVSoUl7jWErFaTZFjILmGORZFItBWSFK7TdauoXOapZgHziftvrgxbQX3CG2hLUc4xKKp7lpfVEXiptbUKwXytjdVzFvvBtjyIVhrJpMsIEKqEAFRFG4xhQ1BEKSxq+qp6HJ+APEAbfGDauOWGQhLMFJdHXS/nefoYsJB1j37xCr45koU8ND/PWtZe2QKkj82tMvdGV6pNqLn39cLMt97mho1S1aX8I1QDUSM4id/T8/jERh8kBjQun+lFmxONfyd/YPNAKnBP7xwtLG01IcL9p27Tc/WpqLrAB5djg= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Nov 05, 2025 at 02:43:34PM +0100, Christian Brauner wrote: > > > > And suspend/resume works just fine with freeze/thaw. See commit > > > > eacfbf74196f ("power: freeze filesystems during suspend/resume") > > > > which implements exactly that. > > > >=20 > > > > The reason this didn't work for you is very likely: > > > >=20 > > > > cat /sys/power/freeze_filesystems > > > > 0 > > > >=20 > > > > which you must set to 1. > > >=20 > > > Actually, no, that's not correct. The efivarfs freeze/thaw logic must > > > run unconditionally regardless of this setting to fix the systemd bug, > > > so all the variable resyncing is done in the thaw call, which isn't > > > conditioned on the above (or at least it shouldn't be). > >=20 > > It is conditioned on the above currently but we can certainly fix it > > easily to not be. >=20 > Something like the appended patch would do it. > >From 1f9dc293cebb10b18d9ec8e01b60c014664c98ab Mon Sep 17 00:00:00 2001 > From: Christian Brauner > Date: Wed, 5 Nov 2025 14:39:45 +0100 > Subject: [PATCH] power: always freeze efivarfs >=20 > The efivarfs filesystems must always be frozen and thawed to resync > variable state. Make it so. >=20 > Signed-off-by: Christian Brauner I bisected some intermittent (44% chance of occuring on any given suspend) lock warnings on suspend to this commit: a3f8f8662771285511ae26c4c8d3ba1cd22159b9 power: always freeze efivarfs Reproducer: `for x in {1..20}; do systemctl suspend; sleep 5; done` Warnings are: [ 50.702541] OOM killer enabled. [ 50.702545] Restarting tasks: Starting [ 50.703553] Restarting tasks: Done [ 50.704233] efivarfs: resyncing variable state [ 50.710323] efivarfs: finished resyncing variable state [ 50.710349] random: crng reseeded on system resumption [ 50.724547] PM: suspend exit [ 50.743157] nvme nvme0: 8/0/0 default/read/poll queues [ 54.814961] PM: suspend entry (s2idle) [ 55.064704] Filesystems sync: 0.249 seconds [ 55.112462] Freezing user space processes [ 55.112647] ------------[ cut here ]------------ [ 55.113009] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D [ 55.113010] WARNING: possible circular locking dependency detected [ 55.113011] 6.18.0-rc6-00040-g8b690556d8fe-dirty #168 Not tainted [ 55.113012] ------------------------------------------------------ [ 55.113012] systemd-sleep/2563 is trying to acquire lock: [ 55.113013] ffffffff99e7aa00 (console_owner){....}-{0:0}, at: console_lo= ck_spinning_enable+0x3c/0x60 [ 55.113021]=20 but task is already holding lock: [ 55.113022] ffff9c3961c65728 (&p->pi_lock){-.-.}-{2:2}, at: task_call_fu= nc+0x49/0xf0 [ 55.113025]=20 which lock already depends on the new lock. [ 55.113025]=20 the existing dependency chain (in reverse order) is: [ 55.113025]=20 -> #2 (&p->pi_lock){-.-.}-{2:2}: [ 55.113027] _raw_spin_lock_irqsave+0x47/0x60 [ 55.113030] try_to_wake_up+0x69/0xac0 [ 55.113031] create_worker+0x17c/0x200 [ 55.113033] workqueue_init+0x27e/0x2e0 [ 55.113036] kernel_init_freeable+0x15e/0x310 [ 55.113038] kernel_init+0x16/0x120 [ 55.113039] ret_from_fork+0x2a9/0x310 [ 55.113041] ret_from_fork_asm+0x11/0x20 [ 55.113043]=20 -> #1 (&pool->lock){-.-.}-{2:2}: [ 55.113045] _raw_spin_lock+0x2f/0x40 [ 55.113046] __queue_work+0x23d/0x680 [ 55.113048] queue_work_on+0x56/0xa0 [ 55.113050] soft_cursor+0x196/0x240 [ 55.113053] bit_cursor+0x368/0x5e0 [ 55.113055] hide_cursor+0x21/0xa0 [ 55.113056] vt_console_print+0x460/0x480 [ 55.113057] console_flush_all+0x2de/0x4e0 [ 55.113059] console_unlock+0x78/0x130 [ 55.113060] vprintk_emit+0x34c/0x400 [ 55.113062] _printk+0x67/0x80 [ 55.113064] int_to_scsilun+0xa/0x30 [scsi_common] [ 55.113068] do_one_initcall+0x68/0x390 [ 55.113069] do_init_module+0x60/0x220 [ 55.113070] init_module_from_file+0x85/0xc0 [ 55.113071] idempotent_init_module+0x11a/0x310 [ 55.113072] __x64_sys_finit_module+0x69/0xd0 [ 55.113073] do_syscall_64+0x95/0x6e0 [ 55.113076] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 55.113077]=20 -> #0 (console_owner){....}-{0:0}: [ 55.113078] __lock_acquire+0x1444/0x2200 [ 55.113080] lock_acquire+0xd1/0x2e0 [ 55.113081] console_lock_spinning_enable+0x58/0x60 [ 55.113083] console_flush_all+0x2a6/0x4e0 [ 55.113085] console_unlock+0x78/0x130 [ 55.113086] vprintk_emit+0x34c/0x400 [ 55.113088] _printk+0x67/0x80 [ 55.113090] report_bug.cold+0x13/0x5a [ 55.113092] handle_bug+0x18d/0x250 [ 55.113094] exc_invalid_op+0x13/0x60 [ 55.113096] asm_exc_invalid_op+0x16/0x20 [ 55.113097] __set_task_frozen+0x6a/0x90 [ 55.113099] task_call_func+0x76/0xf0 [ 55.113099] freeze_task+0x87/0xf0 [ 55.113101] try_to_freeze_tasks+0xe1/0x2b0 [ 55.113102] freeze_processes+0x46/0xb0 [ 55.113104] pm_suspend.cold+0x194/0x29f [ 55.113106] state_store+0x68/0xc0 [ 55.113108] kernfs_fop_write_iter+0x172/0x240 [ 55.113110] vfs_write+0x249/0x560 [ 55.113112] ksys_write+0x6d/0xe0 [ 55.113114] do_syscall_64+0x95/0x6e0 [ 55.113115] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 55.113116]=20 other info that might help us debug this: [ 55.113117] Chain exists of: console_owner --> &pool->lock --> &p->pi_lock [ 55.113118] Possible unsafe locking scenario: [ 55.113119] CPU0 CPU1 [ 55.113119] ---- ---- [ 55.113119] lock(&p->pi_lock); [ 55.113120] lock(&pool->lock); [ 55.113121] lock(&p->pi_lock); [ 55.113121] lock(console_owner); [ 55.113122]=20 *** DEADLOCK *** [ 55.113122] 9 locks held by systemd-sleep/2563: [ 55.113124] #0: ffff9c39429a2420 (sb_writers#5){.+.+}-{0:0}, at: ksys_w= rite+0x6d/0xe0 [ 55.113127] #1: ffff9c394683f488 (&of->mutex){+.+.}-{4:4}, at: kernfs_f= op_write_iter+0x117/0x240 [ 55.113130] #2: ffff9c3941257298 (kn->active#212){.+.+}-{0:0}, at: kern= fs_fop_write_iter+0x12c/0x240 [ 55.113132] #3: ffffffff99e6f088 (system_transition_mutex){+.+.}-{4:4},= at: pm_suspend.cold+0x4c/0x29f [ 55.113136] #4: ffffffff99e08098 (tasklist_lock){.+.+}-{3:3}, at: try_t= o_freeze_tasks+0x8a/0x2b0 [ 55.113138] #5: ffffffff99fa8e98 (freezer_lock){....}-{3:3}, at: freeze= _task+0x29/0xf0 [ 55.113141] #6: ffff9c3961c65728 (&p->pi_lock){-.-.}-{2:2}, at: task_ca= ll_func+0x49/0xf0 [ 55.113143] #7: ffffffff99eeadc0 (console_lock){+.+.}-{0:0}, at: _print= k+0x67/0x80 [ 55.113146] #8: ffffffff99eeae10 (console_srcu){....}-{0:0}, at: consol= e_flush_all+0x3d/0x4e0 [ 55.113149]=20 stack backtrace: [ 55.113151] CPU: 8 UID: 0 PID: 2563 Comm: systemd-sleep Not tainted 6.18= =2E0-rc6-00040-g8b690556d8fe-dirty #168 PREEMPT(voluntary)=20 [ 55.113153] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BI= OS F.17 12/18/2024 [ 55.113154] Call Trace: [ 55.113155] [ 55.113156] dump_stack_lvl+0x6a/0x90 [ 55.113159] print_circular_bug.cold+0x178/0x1be [ 55.113162] check_noncircular+0x142/0x160 [ 55.113166] __lock_acquire+0x1444/0x2200 [ 55.113169] lock_acquire+0xd1/0x2e0 [ 55.113170] ? console_lock_spinning_enable+0x3c/0x60 [ 55.113173] ? console_lock_spinning_enable+0x35/0x60 [ 55.113175] ? lock_release+0x17d/0x2c0 [ 55.113177] console_lock_spinning_enable+0x58/0x60 [ 55.113179] ? console_lock_spinning_enable+0x3c/0x60 [ 55.113181] console_flush_all+0x2a6/0x4e0 [ 55.113183] ? console_flush_all+0x3d/0x4e0 [ 55.113186] console_unlock+0x78/0x130 [ 55.113188] vprintk_emit+0x34c/0x400 [ 55.113191] ? __set_task_frozen+0x6a/0x90 [ 55.113193] _printk+0x67/0x80 [ 55.113195] ? lock_is_held_type+0xd5/0x130 [ 55.113199] report_bug.cold+0x13/0x5a [ 55.113201] ? __set_task_frozen+0x6a/0x90 [ 55.113203] handle_bug+0x18d/0x250 [ 55.113205] exc_invalid_op+0x13/0x60 [ 55.113207] asm_exc_invalid_op+0x16/0x20 [ 55.113209] RIP: 0010:__set_task_frozen+0x6a/0x90 [ 55.113211] Code: f7 c5 00 20 00 00 74 06 40 f6 c5 03 74 33 81 e5 00 40 = 00 00 75 16 8b 15 d8 8c 52 01 85 d2 74 0c 8b 83 f0 0e 00 00 85 c0 74 02 <0f= > 0b 8b 43 18 c7 43 18 00 80 00 00 89 43 1c b8 00 80 00 00 5b 5d [ 55.113212] RSP: 0018:ffffbfba462ef8d0 EFLAGS: 00010002 [ 55.113214] RAX: 0000000000000002 RBX: ffff9c3961c64900 RCX: 00000000000= 00000 [ 55.113215] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff9c3961c= 64900 [ 55.113216] RBP: 0000000000000000 R08: 00000000000000b6 R09: 00000000000= 00006 [ 55.113217] R10: 00000000000000f0 R11: 0000000000000006 R12: ffffffff98b= d9000 [ 55.113217] R13: 0000000000000000 R14: ffff9c3961c65710 R15: ffff9c3961c= 65200 [ 55.113218] ? freezing_slow_path+0x70/0x70 [ 55.113222] task_call_func+0x76/0xf0 [ 55.113224] freeze_task+0x87/0xf0 [ 55.113226] try_to_freeze_tasks+0xe1/0x2b0 [ 55.113229] ? lockdep_hardirqs_on+0x78/0x100 [ 55.113231] freeze_processes+0x46/0xb0 [ 55.113233] pm_suspend.cold+0x194/0x29f [ 55.113235] state_store+0x68/0xc0 [ 55.113238] kernfs_fop_write_iter+0x172/0x240 [ 55.113239] vfs_write+0x249/0x560 [ 55.113243] ksys_write+0x6d/0xe0 [ 55.113246] do_syscall_64+0x95/0x6e0 [ 55.113249] ? __lock_acquire+0x469/0x2200 [ 55.113252] ? __lock_acquire+0x469/0x2200 [ 55.113255] ? lock_acquire+0xd1/0x2e0 [ 55.113257] ? find_held_lock+0x2b/0x80 [ 55.113258] ? __folio_batch_add_and_move+0x185/0x320 [ 55.113260] ? find_held_lock+0x2b/0x80 [ 55.113261] ? rcu_read_unlock+0x17/0x60 [ 55.113264] ? rcu_read_unlock+0x17/0x60 [ 55.113266] ? lock_release+0x17d/0x2c0 [ 55.113269] ? __lock_acquire+0x469/0x2200 [ 55.113271] ? __handle_mm_fault+0xac2/0xf10 [ 55.113273] ? find_held_lock+0x2b/0x80 [ 55.113275] ? rcu_read_unlock+0x17/0x60 [ 55.113276] ? rcu_read_unlock+0x17/0x60 [ 55.113278] ? lock_release+0x17d/0x2c0 [ 55.113279] ? rcu_is_watching+0xd/0x40 [ 55.113281] ? find_held_lock+0x2b/0x80 [ 55.113282] ? exc_page_fault+0x8f/0x260 [ 55.113284] ? exc_page_fault+0x8f/0x260 [ 55.113285] ? lock_release+0x17d/0x2c0 [ 55.113287] ? exc_page_fault+0x132/0x260 [ 55.113289] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 55.113291] RIP: 0033:0x7fd302d0e0d0 [ 55.113292] Code: 2d 0e 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e = 0f 1f 84 00 00 00 00 00 80 3d 99 af 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48= > 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 55.113293] RSP: 002b:00007fffb5edd3d8 EFLAGS: 00000202 ORIG_RAX: 000000= 0000000001 [ 55.113295] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd302d= 0e0d0 [ 55.113295] RDX: 0000000000000004 RSI: 000055aa9fd98750 RDI: 00000000000= 00007 [ 55.113296] RBP: 000055aa9fd98750 R08: 00007fd302df1ac0 R09: 00000000000= 00001 [ 55.113297] R10: 00007fd302df1bb0 R11: 0000000000000202 R12: 00000000000= 00004 [ 55.113297] R13: 000055aa9fd8f2a0 R14: 00007fd302defea0 R15: 00000000fff= ffff7 [ 55.113301] [ 55.113362] WARNING: CPU: 8 PID: 2563 at kernel/freezer.c:140 __set_task= _frozen+0x6a/0x90 [ 55.113366] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq= _device xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlin= k nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo xt_addrtyp= e nft_compat x_tables nf_tables br_netfilter bridge stp llc ccm overlay qrt= r rfcomm cmac algif_hash algif_skcipher af_alg bnep binfmt_misc nls_ascii n= ls_cp437 vfat fat iwlmvm snd_hda_codec_generic intel_rapl_msr uvcvideo snd_= hda_codec_hdmi amd_atl mac80211 btusb videobuf2_vmalloc intel_rapl_common b= trtl videobuf2_memops snd_hda_intel snd_acp3x_pdm_dma snd_soc_dmic snd_acp3= x_rn uvc btintel kvm_amd snd_hda_codec videobuf2_v4l2 snd_soc_core btbcm li= barc4 videodev snd_compress btmtk snd_intel_dspcfg ucsi_acpi kvm snd_hwdep = videobuf2_common snd_pci_acp6x typec_ucsi bluetooth snd_hda_core snd_pci_ac= p5x mc ee1004 sg iwlwifi irqbypass roles snd_pcm ecdh_generic snd_rn_pci_ac= p3x typec wmi_bmof ecc rapl snd_timer snd_acp_config cfg80211 snd snd_soc_a= cpi sp5100_tco pcspkr k10temp thunderbolt watchdog ccp [ 55.113424] snd_pci_acp3x soundcore rfkill ac battery joydev acpi_tad a= md_pmc evdev serio_raw msr dm_mod parport_pc ppdev lp parport nvme_fabrics = fuse efi_pstore configfs nfnetlink efivarfs autofs4 crc32c_cryptoapi sd_mod= uas usb_storage scsi_mod scsi_common btrfs blake2b_generic xor raid6_pq am= dgpu drm_client_lib i2c_algo_bit drm_ttm_helper ttm drm_exec drm_suballoc_h= elper drm_buddy drm_panel_backlight_quirks gpu_sched amdxcp drm_display_hel= per xhci_pci hid_multitouch drm_kms_helper hid_generic xhci_hcd cec i2c_hid= _acpi amd_sfh i2c_hid rc_core nvme usbcore i2c_piix4 video ghash_clmulni_in= tel hid crc16 usb_common nvme_core i2c_smbus fan button wmi drm aesni_intel [ 55.113467] CPU: 8 UID: 0 PID: 2563 Comm: systemd-sleep Not tainted 6.18= =2E0-rc6-00040-g8b690556d8fe-dirty #168 PREEMPT(voluntary)=20 [ 55.113470] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BI= OS F.17 12/18/2024 [ 55.113471] RIP: 0010:__set_task_frozen+0x6a/0x90 [ 55.113473] Code: f7 c5 00 20 00 00 74 06 40 f6 c5 03 74 33 81 e5 00 40 = 00 00 75 16 8b 15 d8 8c 52 01 85 d2 74 0c 8b 83 f0 0e 00 00 85 c0 74 02 <0f= > 0b 8b 43 18 c7 43 18 00 80 00 00 89 43 1c b8 00 80 00 00 5b 5d [ 55.113474] RSP: 0018:ffffbfba462ef8d0 EFLAGS: 00010002 [ 55.113476] RAX: 0000000000000002 RBX: ffff9c3961c64900 RCX: 00000000000= 00000 [ 55.113477] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff9c3961c= 64900 [ 55.113479] RBP: 0000000000000000 R08: 00000000000000b6 R09: 00000000000= 00006 [ 55.113480] R10: 00000000000000f0 R11: 0000000000000006 R12: ffffffff98b= d9000 [ 55.113481] R13: 0000000000000000 R14: ffff9c3961c65710 R15: ffff9c3961c= 65200 [ 55.113482] FS: 00007fd303258980(0000) GS:ffff9c3cb2d98000(0000) knlGS:= 0000000000000000 [ 55.113484] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.113485] CR2: 0000561c6a183168 CR3: 0000000122bcb000 CR4: 00000000007= 50ef0 [ 55.113487] PKRU: 55555554 [ 55.113488] Call Trace: [ 55.113489] [ 55.113491] task_call_func+0x76/0xf0 [ 55.113493] freeze_task+0x87/0xf0 [ 55.113496] try_to_freeze_tasks+0xe1/0x2b0 [ 55.113499] ? lockdep_hardirqs_on+0x78/0x100 [ 55.113502] freeze_processes+0x46/0xb0 [ 55.113505] pm_suspend.cold+0x194/0x29f [ 55.113507] state_store+0x68/0xc0 [ 55.113510] kernfs_fop_write_iter+0x172/0x240 [ 55.113513] vfs_write+0x249/0x560 [ 55.113518] ksys_write+0x6d/0xe0 [ 55.113521] do_syscall_64+0x95/0x6e0 [ 55.113524] ? __lock_acquire+0x469/0x2200 [ 55.113528] ? __lock_acquire+0x469/0x2200 [ 55.113532] ? lock_acquire+0xd1/0x2e0 [ 55.113534] ? find_held_lock+0x2b/0x80 [ 55.113536] ? __folio_batch_add_and_move+0x185/0x320 [ 55.113538] ? find_held_lock+0x2b/0x80 [ 55.113540] ? rcu_read_unlock+0x17/0x60 [ 55.113543] ? rcu_read_unlock+0x17/0x60 [ 55.113545] ? lock_release+0x17d/0x2c0 [ 55.113549] ? __lock_acquire+0x469/0x2200 [ 55.113551] ? __handle_mm_fault+0xac2/0xf10 [ 55.113554] ? find_held_lock+0x2b/0x80 [ 55.113556] ? rcu_read_unlock+0x17/0x60 [ 55.113558] ? rcu_read_unlock+0x17/0x60 [ 55.113561] ? lock_release+0x17d/0x2c0 [ 55.113563] ? rcu_is_watching+0xd/0x40 [ 55.113565] ? find_held_lock+0x2b/0x80 [ 55.113566] ? exc_page_fault+0x8f/0x260 [ 55.113568] ? exc_page_fault+0x8f/0x260 [ 55.113570] ? lock_release+0x17d/0x2c0 [ 55.113573] ? exc_page_fault+0x132/0x260 [ 55.113576] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 55.113578] RIP: 0033:0x7fd302d0e0d0 [ 55.113579] Code: 2d 0e 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e = 0f 1f 84 00 00 00 00 00 80 3d 99 af 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48= > 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 55.113581] RSP: 002b:00007fffb5edd3d8 EFLAGS: 00000202 ORIG_RAX: 000000= 0000000001 [ 55.113583] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd302d= 0e0d0 [ 55.113584] RDX: 0000000000000004 RSI: 000055aa9fd98750 RDI: 00000000000= 00007 [ 55.113585] RBP: 000055aa9fd98750 R08: 00007fd302df1ac0 R09: 00000000000= 00001 [ 55.113586] R10: 00007fd302df1bb0 R11: 0000000000000202 R12: 00000000000= 00004 [ 55.113587] R13: 000055aa9fd8f2a0 R14: 00007fd302defea0 R15: 00000000fff= ffff7 [ 55.113591] [ 55.113592] irq event stamp: 22480 [ 55.113594] hardirqs last enabled at (22479): [] _raw= _spin_unlock_irqrestore+0x48/0x60 [ 55.113596] hardirqs last disabled at (22480): [] _raw= _spin_lock_irqsave+0x5b/0x60 [ 55.113598] softirqs last enabled at (21756): [] kern= el_fpu_end+0x31/0x40 [ 55.113600] softirqs last disabled at (21754): [] kern= el_fpu_begin_mask+0xd6/0x150 [ 55.113602] ---[ end trace 0000000000000000 ]--- [ 55.115030] Freezing user space processes completed (elapsed 0.002 secon= ds) [ 55.115035] OOM killer disabled. [ 55.115037] Freezing remaining freezable tasks [ 55.116230] Freezing remaining freezable tasks completed (elapsed 0.001 = seconds) [ 55.116233] printk: Suspending console(s) (use no_console_suspend to deb= ug) And another: [ 90.334155] OOM killer enabled. [ 90.334159] Restarting tasks: Starting [ 90.335256] Restarting tasks: Done [ 90.336242] efivarfs: resyncing variable state [ 90.347855] efivarfs: finished resyncing variable state [ 90.351615] random: crng reseeded on system resumption [ 90.402289] Bluetooth: MGMT ver 1.23 [ 90.418337] PM: suspend exit [ 90.418508] PM: suspend entry (s2idle) [ 90.442310] Filesystems sync: 0.023 seconds [ 90.464970] Freezing user space processes [ 90.465209] ------------[ cut here ]------------ [ 90.465655] WARNING: CPU: 12 PID: 3770 at kernel/freezer.c:140 __set_tas= k_frozen+0x6a/0x90 [ 90.465662] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq= _device xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlin= k nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo xt_addrtyp= e nft_compat x_tables nf_tables br_netfilter bridge stp llc ccm overlay qrt= r rfcomm cmac algif_hash algif_skcipher af_alg bnep binfmt_misc ext4 mbcach= e jbd2 nls_ascii nls_cp437 vfat fat iwlmvm intel_rapl_msr amd_atl intel_rap= l_common snd_hda_codec_generic snd_hda_codec_hdmi btusb uvcvideo mac80211 b= trtl videobuf2_vmalloc btintel kvm_amd videobuf2_memops snd_hda_intel btbcm= uvc libarc4 snd_hda_codec btmtk videobuf2_v4l2 kvm snd_intel_dspcfg snd_hd= a_scodec_cs35l41_i2c snd_hwdep bluetooth videodev snd_hda_scodec_cs35l41 sn= d_hda_core irqbypass iwlwifi ideapad_laptop snd_soc_cs_amp_lib videobuf2_co= mmon ecdh_generic sparse_keymap snd_pcm cs_dsp rapl ecc mc wmi_bmof ee1004 = platform_profile pcspkr cfg80211 snd_soc_cs35l41_lib snd_timer k10temp ccp = sg rfkill battery snd soundcore cm32181 [ 90.466192] serial_multi_instantiate industrialio joydev ac evdev msr p= arport_pc ppdev lp parport nvme_fabrics fuse efi_pstore configfs nfnetlink = efivarfs autofs4 crc32c_cryptoapi btrfs blake2b_generic xor raid6_pq dm_cry= pt sd_mod uas usbhid usb_storage amdgpu drm_client_lib i2c_algo_bit drm_ttm= _helper ttm drm_exec drm_suballoc_helper drm_buddy drm_panel_backlight_quir= ks dm_mod gpu_sched ahci amdxcp r8169 libahci drm_display_helper ucsi_acpi = realtek libata drm_kms_helper typec_ucsi hid_multitouch xhci_pci mdio_devre= s roles cec sp5100_tco hid_generic xhci_hcd libphy scsi_mod nvme video type= c rc_core wdat_wdt i2c_piix4 ghash_clmulni_intel nvme_core mdio_bus serio_r= aw watchdog scsi_common usbcore thunderbolt crc16 i2c_hid_acpi i2c_smbus us= b_common i2c_hid wmi hid drm button aesni_intel [ 90.466268] CPU: 12 UID: 0 PID: 3770 Comm: systemd-sleep Not tainted 6.1= 8.0-rc6-00040-g8b690556d8fe-dirty #168 PREEMPT(voluntary)=20 [ 90.466272] Hardware name: LENOVO 82N6/LNVNB161216, BIOS GKCN65WW 01/16/= 2024 [ 90.466274] RIP: 0010:__set_task_frozen+0x6a/0x90 [ 90.466277] Code: f7 c5 00 20 00 00 74 06 40 f6 c5 03 74 33 81 e5 00 40 = 00 00 75 16 8b 15 d8 8c 52 01 85 d2 74 0c 8b 83 f0 0e 00 00 85 c0 74 02 <0f= > 0b 8b 43 18 c7 43 18 00 80 00 00 89 43 1c b8 00 80 00 00 5b 5d [ 90.466279] RSP: 0018:ffffaa8f8bf5bab0 EFLAGS: 00010002 [ 90.466282] RAX: 0000000000000002 RBX: ffff8bd9e5d12480 RCX: 00000000000= 00000 [ 90.466284] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8bd9e5d= 12480 [ 90.466285] RBP: 0000000000000000 R08: 00000000000000b4 R09: 00000000000= 00006 [ 90.466287] R10: 00000000000000f0 R11: 0000000000000006 R12: ffffffff83d= d9000 [ 90.466288] R13: 0000000000000000 R14: ffff8bd9e5d13290 R15: ffff8bd9e5d= 12d80 [ 90.466290] FS: 00007f5e1fc45980(0000) GS:ffff8bdfc4698000(0000) knlGS:= 0000000000000000 [ 90.466292] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.466293] CR2: 00007f5e2043b488 CR3: 000000016063e000 CR4: 00000000007= 50ef0 [ 90.466295] PKRU: 55555554 [ 90.466296] Call Trace: [ 90.466298] [ 90.466301] task_call_func+0x76/0xf0 [ 90.466307] freeze_task+0x87/0xf0 [ 90.466312] try_to_freeze_tasks+0xe1/0x2b0 [ 90.466317] ? lockdep_hardirqs_on+0x78/0x100 [ 90.466322] freeze_processes+0x46/0xb0 [ 90.466326] pm_suspend.cold+0x194/0x29f [ 90.466330] state_store+0x68/0xc0 [ 90.466335] kernfs_fop_write_iter+0x172/0x240 [ 90.466340] vfs_write+0x249/0x560 [ 90.466350] ksys_write+0x6d/0xe0 [ 90.466355] do_syscall_64+0x95/0x6e0 [ 90.466363] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.466366] ? lockdep_hardirqs_on+0x78/0x100 [ 90.466369] ? do_syscall_64+0x1ad/0x6e0 [ 90.466372] ? find_held_lock+0x2b/0x80 [ 90.466376] ? do_sys_openat2+0xa4/0xe0 [ 90.466379] ? kmem_cache_free+0x13e/0x640 [ 90.466385] ? do_sys_openat2+0xa4/0xe0 [ 90.466387] ? do_sys_openat2+0xa4/0xe0 [ 90.466390] ? find_held_lock+0x2b/0x80 [ 90.466395] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.466397] ? lockdep_hardirqs_on+0x78/0x100 [ 90.466400] ? do_syscall_64+0x1ad/0x6e0 [ 90.466402] ? exc_page_fault+0x132/0x260 [ 90.466409] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.466410] RIP: 0033:0x7f5e1fe99687 [ 90.466414] Code: 48 89 fa 4c 89 df e8 58 b3 00 00 8b 93 08 03 00 00 59 = 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b= > c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 90.466415] RSP: 002b:00007fff3d312840 EFLAGS: 00000202 ORIG_RAX: 000000= 0000000001 [ 90.466418] RAX: ffffffffffffffda RBX: 00007f5e1fc45980 RCX: 00007f5e1fe= 99687 [ 90.466419] RDX: 0000000000000007 RSI: 000055c3cbfbce50 RDI: 00000000000= 00007 [ 90.466421] RBP: 000055c3cbfbce50 R08: 0000000000000000 R09: 00000000000= 00000 [ 90.466422] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000= 00007 [ 90.466423] R13: 000055c3cbfb22a0 R14: 00007f5e1ffefe80 R15: 00000000fff= ffff7 [ 90.466435] [ 90.466437] irq event stamp: 118990 [ 90.466438] hardirqs last enabled at (118989): [] _ra= w_spin_unlock_irqrestore+0x48/0x60 [ 90.466441] hardirqs last disabled at (118990): [] _ra= w_spin_lock_irqsave+0x5b/0x60 [ 90.466443] softirqs last enabled at (118630): [] __i= rq_exit_rcu+0xcd/0x140 [ 90.466446] softirqs last disabled at (118623): [] __i= rq_exit_rcu+0xcd/0x140 [ 90.466448] ---[ end trace 0000000000000000 ]--- [ 90.466528] ------------[ cut here ]------------ [ 90.466530] WARNING: CPU: 12 PID: 3770 at kernel/freezer.c:140 __set_tas= k_frozen+0x6a/0x90 [ 90.466535] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq= _device xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlin= k nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo xt_addrtyp= e nft_compat x_tables nf_tables br_netfilter bridge stp llc ccm overlay qrt= r rfcomm cmac algif_hash algif_skcipher af_alg bnep binfmt_misc ext4 mbcach= e jbd2 nls_ascii nls_cp437 vfat fat iwlmvm intel_rapl_msr amd_atl intel_rap= l_common snd_hda_codec_generic snd_hda_codec_hdmi btusb uvcvideo mac80211 b= trtl videobuf2_vmalloc btintel kvm_amd videobuf2_memops snd_hda_intel btbcm= uvc libarc4 snd_hda_codec btmtk videobuf2_v4l2 kvm snd_intel_dspcfg snd_hd= a_scodec_cs35l41_i2c snd_hwdep bluetooth videodev snd_hda_scodec_cs35l41 sn= d_hda_core irqbypass iwlwifi ideapad_laptop snd_soc_cs_amp_lib videobuf2_co= mmon ecdh_generic sparse_keymap snd_pcm cs_dsp rapl ecc mc wmi_bmof ee1004 = platform_profile pcspkr cfg80211 snd_soc_cs35l41_lib snd_timer k10temp ccp = sg rfkill battery snd soundcore cm32181 [ 90.466665] serial_multi_instantiate industrialio joydev ac evdev msr p= arport_pc ppdev lp parport nvme_fabrics fuse efi_pstore configfs nfnetlink = efivarfs autofs4 crc32c_cryptoapi btrfs blake2b_generic xor raid6_pq dm_cry= pt sd_mod uas usbhid usb_storage amdgpu drm_client_lib i2c_algo_bit drm_ttm= _helper ttm drm_exec drm_suballoc_helper drm_buddy drm_panel_backlight_quir= ks dm_mod gpu_sched ahci amdxcp r8169 libahci drm_display_helper ucsi_acpi = realtek libata drm_kms_helper typec_ucsi hid_multitouch xhci_pci mdio_devre= s roles cec sp5100_tco hid_generic xhci_hcd libphy scsi_mod nvme video type= c rc_core wdat_wdt i2c_piix4 ghash_clmulni_intel nvme_core mdio_bus serio_r= aw watchdog scsi_common usbcore thunderbolt crc16 i2c_hid_acpi i2c_smbus us= b_common i2c_hid wmi hid drm button aesni_intel [ 90.466759] CPU: 12 UID: 0 PID: 3770 Comm: systemd-sleep Tainted: G = W 6.18.0-rc6-00040-g8b690556d8fe-dirty #168 PREEMPT(voluntary)= =20 [ 90.466763] Tainted: [W]=3DWARN [ 90.466765] Hardware name: LENOVO 82N6/LNVNB161216, BIOS GKCN65WW 01/16/= 2024 [ 90.466767] RIP: 0010:__set_task_frozen+0x6a/0x90 [ 90.466770] Code: f7 c5 00 20 00 00 74 06 40 f6 c5 03 74 33 81 e5 00 40 = 00 00 75 16 8b 15 d8 8c 52 01 85 d2 74 0c 8b 83 f0 0e 00 00 85 c0 74 02 <0f= > 0b 8b 43 18 c7 43 18 00 80 00 00 89 43 1c b8 00 80 00 00 5b 5d [ 90.466772] RSP: 0018:ffffaa8f8bf5bab0 EFLAGS: 00010002 [ 90.466775] RAX: 0000000000000002 RBX: ffff8bda00862480 RCX: 00000000000= 00000 [ 90.466777] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8bda008= 62480 [ 90.466779] RBP: 0000000000000000 R08: 00000000000000b4 R09: 00000000000= 00006 [ 90.466781] R10: 00000000000000f0 R11: 0000000000000006 R12: ffffffff83d= d9000 [ 90.466783] R13: 0000000000000000 R14: ffff8bda00863290 R15: ffff8bd9e5d= 45200 [ 90.466785] FS: 00007f5e1fc45980(0000) GS:ffff8bdfc4698000(0000) knlGS:= 0000000000000000 [ 90.466787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.466789] CR2: 00007f5e2043b488 CR3: 000000016063e000 CR4: 00000000007= 50ef0 [ 90.466791] PKRU: 55555554 [ 90.466793] Call Trace: [ 90.466794] [ 90.466797] task_call_func+0x76/0xf0 [ 90.466805] freeze_task+0x87/0xf0 [ 90.466812] try_to_freeze_tasks+0xe1/0x2b0 [ 90.466817] ? lockdep_hardirqs_on+0x78/0x100 [ 90.466824] freeze_processes+0x46/0xb0 [ 90.466828] pm_suspend.cold+0x194/0x29f [ 90.466833] state_store+0x68/0xc0 [ 90.466840] kernfs_fop_write_iter+0x172/0x240 [ 90.466846] vfs_write+0x249/0x560 [ 90.466859] ksys_write+0x6d/0xe0 [ 90.466866] do_syscall_64+0x95/0x6e0 [ 90.466877] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.466880] ? lockdep_hardirqs_on+0x78/0x100 [ 90.466883] ? do_syscall_64+0x1ad/0x6e0 [ 90.466888] ? find_held_lock+0x2b/0x80 [ 90.466894] ? do_sys_openat2+0xa4/0xe0 [ 90.466896] ? kmem_cache_free+0x13e/0x640 [ 90.466905] ? do_sys_openat2+0xa4/0xe0 [ 90.466908] ? do_sys_openat2+0xa4/0xe0 [ 90.466911] ? find_held_lock+0x2b/0x80 [ 90.466918] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.466921] ? lockdep_hardirqs_on+0x78/0x100 [ 90.466925] ? do_syscall_64+0x1ad/0x6e0 [ 90.466929] ? exc_page_fault+0x132/0x260 [ 90.466938] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.466940] RIP: 0033:0x7f5e1fe99687 [ 90.466943] Code: 48 89 fa 4c 89 df e8 58 b3 00 00 8b 93 08 03 00 00 59 = 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b= > c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 90.466945] RSP: 002b:00007fff3d312840 EFLAGS: 00000202 ORIG_RAX: 000000= 0000000001 [ 90.466949] RAX: ffffffffffffffda RBX: 00007f5e1fc45980 RCX: 00007f5e1fe= 99687 [ 90.466950] RDX: 0000000000000007 RSI: 000055c3cbfbce50 RDI: 00000000000= 00007 [ 90.466952] RBP: 000055c3cbfbce50 R08: 0000000000000000 R09: 00000000000= 00000 [ 90.466954] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000= 00007 [ 90.466956] R13: 000055c3cbfb22a0 R14: 00007f5e1ffefe80 R15: 00000000fff= ffff7 [ 90.466971] [ 90.466973] irq event stamp: 119140 [ 90.466975] hardirqs last enabled at (119139): [] _ra= w_spin_unlock_irqrestore+0x48/0x60 [ 90.466977] hardirqs last disabled at (119140): [] _ra= w_spin_lock_irqsave+0x5b/0x60 [ 90.466980] softirqs last enabled at (118630): [] __i= rq_exit_rcu+0xcd/0x140 [ 90.466983] softirqs last disabled at (118623): [] __i= rq_exit_rcu+0xcd/0x140 [ 90.466987] ---[ end trace 0000000000000000 ]--- [ 90.468818] Freezing user space processes completed (elapsed 0.003 secon= ds) [ 90.468822] OOM killer disabled. [ 90.468824] Freezing remaining freezable tasks [ 90.470358] Freezing remaining freezable tasks completed (elapsed 0.001 = seconds) [ 90.470361] printk: Suspending console(s) (use no_console_suspend to deb= ug) #regzbot title: Intermittent suspend __set_task_frozen lock warnings #regzbot introduced: a3f8f8662771285511ae26c4c8d3ba1cd22159b9