From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63B8FC433E0 for ; Sun, 28 Feb 2021 13:22:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B595B64E59 for ; Sun, 28 Feb 2021 13:22:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B595B64E59 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1AA3D8D0020; Sun, 28 Feb 2021 08:22:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 15D0E8D0019; Sun, 28 Feb 2021 08:22:35 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0725C8D0020; Sun, 28 Feb 2021 08:22:35 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0071.hostedemail.com [216.40.44.71]) by kanga.kvack.org (Postfix) with ESMTP id E171D8D0019 for ; Sun, 28 Feb 2021 08:22:34 -0500 (EST) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 9ACB46D7C for ; Sun, 28 Feb 2021 13:22:34 +0000 (UTC) X-FDA: 77867741028.21.80D84CA Received: from mail-lj1-f171.google.com (mail-lj1-f171.google.com [209.85.208.171]) by imf12.hostedemail.com (Postfix) with ESMTP id 17B06138 for ; Sun, 28 Feb 2021 13:22:26 +0000 (UTC) Received: by mail-lj1-f171.google.com with SMTP id 2so11645082ljr.5 for ; Sun, 28 Feb 2021 05:22:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=QjsSH8a0NP4Eva+k2zeqQXaqqdYQ1WgwDe3nn7UlaQ0=; b=PTbC1q+a5z45i10RuUacMNmhQuBCl9GjJwsl3WUp/drIQWFldGT466qqiYvwfqp24z ViC/wKZnGABTlSntgWdmk0poZdltWQnMgUgRRUYy1OuErSLFhAAKcC2suqgDBPkDXCQx 3GstuCqlLmjeXxY3XvS5tQhaZLBhrL6qwX9kq95/2PRJFYARt2l8TqQcIF1Hct30IPM3 OVWSk3ZksCg1gv+U84RswHxx7B/xKExpFBiBANYhdgCNQ45hnxuOpHcO9OFKDse5lN+l g6uwyyRmpN5hIrRWIhzxzCIM2nNQxYnOo6iMwJyCZi1Vo23P9HK1ckr2MoMG00zeiFfj vWyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=QjsSH8a0NP4Eva+k2zeqQXaqqdYQ1WgwDe3nn7UlaQ0=; b=JutqlUsH6hRjZVJ10k8qNJeQG3Z4qy/l7mL9t5dsecYnjynepZ9SgYHzef4UG27/1s /1GZ9inTNcc9pzD7RH+8HSLmYRoKhENAO9n1YGjYzPAhzrEWGuKNPPoZZ1j2uREyA9hs cYmU0RvCLUaBnc/VvBrqVKTDyjK53SmoLaunY4r7VmWLQ9Mo2HYQYYHEeiv39UOESXjv j9bF1o6BGpnxeWJnW9PtShwHk4+rpmGepMzJ4A/QzcuV50OtCiuSBnNrSVLl5ZhoroSB f+vt8SxCDpi2GJ5hu3/Ynap7CESK1KPrvJqUyZqjtc+WdsjiT2Y1s5dTn/xjUP3MvcGU ISWQ== X-Gm-Message-State: AOAM530fz1+moNshipklQlIfXmvn2JYxmXTdWYEJJE4wraVEsD6cQ7bl r3MKKwN97MeWhUYSF7GuRg4E/bWQ4xYLyAX+20M= X-Google-Smtp-Source: ABdhPJwpdcVfocGHRMOLyZeZdYa52saE1ILfL2qecFnen7M+1mh5FIYkLPKqPHrzdptChto8qRUWONXGBOou352aS9A= X-Received: by 2002:a2e:760d:: with SMTP id r13mr6434833ljc.223.1614518552360; Sun, 28 Feb 2021 05:22:32 -0800 (PST) MIME-Version: 1.0 References: <20210126082834.2020-1-hdanton@sina.com> <20210213030327.4992-1-hdanton@sina.com> In-Reply-To: <20210213030327.4992-1-hdanton@sina.com> From: Mikhail Gavrilov Date: Sun, 28 Feb 2021 18:22:21 +0500 Message-ID: Subject: Re: BUG: KASAN: use-after-free in __list_add_valid+0x81/0xa0 (5.11-rc4) To: Hillf Danton Cc: LKML , MM , Kees Cook , "Paul E . McKenney" Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: jzdb9dafb9zznyed8f57gyfnzn6zyiuq X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 17B06138 Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf12; identity=mailfrom; envelope-from=""; helo=mail-lj1-f171.google.com; client-ip=209.85.208.171 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1614518546-733182 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: On Sat, 13 Feb 2021 at 08:03, Hillf Danton wrote: > > The comment below shows a race instance, though I failed to put things > together to see how within two hours. Cut it and see what will come up. > > --- a/mm/z3fold.c > +++ b/mm/z3fold.c > @@ -1129,19 +1129,22 @@ retry: > page = NULL; > if (can_sleep) { > spin_lock(&pool->stale_lock); > + spin_lock(&pool->lock); > zhdr = list_first_entry_or_null(&pool->stale, > struct z3fold_header, buddy); > /* > - * Before allocating a page, let's see if we can take one from > + * Before allocating a page, lets see if we can take one from > * the stale pages list. cancel_work_sync() can sleep so we > * limit this case to the contexts where we can sleep > */ > if (zhdr) { > list_del(&zhdr->buddy); > + spin_unlock(&pool->lock); > spin_unlock(&pool->stale_lock); > cancel_work_sync(&zhdr->work); > page = virt_to_page(zhdr); > } else { > + spin_unlock(&pool->lock); > spin_unlock(&pool->stale_lock); > } > } Hi, It happened again with the patch above. Is anything cleared up now? [32451.229358] list_add corruption. next->prev should be prev (ffffd08fbc661cd0), but was ffffffffa7643650. (next=ffff9e4d2848f1c0). [32451.229395] ------------[ cut here ]------------ [32451.229398] kernel BUG at lib/list_debug.c:23! [32451.229408] invalid opcode: 0000 [#1] SMP NOPTI [32451.229414] CPU: 4 PID: 80665 Comm: kworker/u64:0 Tainted: G W --------- --- 5.11.0-155.fc35.x86_64+debug #1 [32451.229420] Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021 [32451.229424] Workqueue: zswap3 compact_page_work [32451.229433] RIP: 0010:__list_add_valid.cold+0xf/0x3f [32451.229439] Code: 48 c7 c6 24 26 64 a8 48 89 ef 49 c7 c7 ea ff ff ff e8 e8 71 01 00 e9 fa 10 9e ff 4c 89 c1 48 c7 c7 f0 26 64 a8 e8 50 12 fe ff <0f> 0b 48 89 f2 4c 89 c1 48 89 fe 48 c7 c7 a0 27 64 a8 e8 39 12 fe [32451.229444] RSP: 0018:ffffb08fd553fde0 EFLAGS: 00010286 [32451.229449] RAX: 0000000000000075 RBX: ffffe16d871550c0 RCX: 0000000000000000 [32451.229453] RDX: ffff9e53c73e9f60 RSI: ffff9e53c73db2a0 RDI: ffff9e53c73db2a0 [32451.229457] RBP: ffffd08fbc661cd0 R08: 0000000000000000 R09: ffffb08fd553fc20 [32451.229460] R10: ffffb08fd553fc18 R11: 0000000000000000 R12: ffff9e4ce4e29008 [32451.229464] R13: ffff9e4d85543010 R14: ffff9e4d2848f1c0 R15: ffff9e4d85543000 [32451.229468] FS: 0000000000000000(0000) GS:ffff9e53c7200000(0000) knlGS:0000000000000000 [32451.229472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [32451.229476] CR2: 00000fb21455dfe8 CR3: 0000000142968000 CR4: 0000000000350ee0 [32451.229480] Call Trace: [32451.229485] do_compact_page+0x28d/0xb60 [32451.229492] ? debug_object_deactivate+0x55/0x140 [32451.229499] ? lock_release+0x1e9/0x400 [32451.229505] ? lock_release+0x1e9/0x400 [32451.229511] process_one_work+0x2b0/0x5e0 [32451.229519] worker_thread+0x55/0x3c0 [32451.229524] ? process_one_work+0x5e0/0x5e0 [32451.229531] kthread+0x13a/0x150 [32451.229540] ? __kthread_bind_mask+0x60/0x60 [32451.229548] ret_from_fork+0x22/0x30 [32451.229558] Modules linked in: snd_seq_dummy snd_hrtimer tun uinput nls_utf8 isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc xpad ff_memless vfat fat hid_logitech_hidpp hid_logitech_dj joydev snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc snd_hda_intel videobuf2_memops videobuf2_v4l2 snd_intel_dspcfg mt76x2u soundwire_intel mt76x2_common videobuf2_common mt76x02_usb soundwire_generic_allocation mt76_usb intel_rapl_msr intel_rapl_common iwlmvm snd_soc_core snd_usb_audio videodev snd_compress mt76x02_lib btusb snd_usbmidi_lib snd_pcm_dmaengine mt76 soundwire_cadence btrtl snd_rawmidi btbcm snd_hda_codec mc btintel edac_mce_amd mac80211 kvm_amd snd_hda_core uas bluetooth ac97_bus [32451.229628] iwlwifi snd_hwdep usb_storage kvm snd_seq libarc4 snd_seq_device ecdh_generic cfg80211 ecc irqbypass snd_pcm rapl eeepc_wmi asus_wmi sparse_keymap snd_timer rfkill snd video sp5100_tco wmi_bmof i2c_piix4 k10temp soundcore acpi_cpufreq binfmt_misc ip_tables amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched crct10dif_pclmul crc32_pclmul drm_kms_helper crc32c_intel cec drm igb ghash_clmulni_intel nvme ccp dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [32451.229696] ---[ end trace 80d86d6942435514 ]--- [32451.229701] RIP: 0010:__list_add_valid.cold+0xf/0x3f [32451.229706] Code: 48 c7 c6 24 26 64 a8 48 89 ef 49 c7 c7 ea ff ff ff e8 e8 71 01 00 e9 fa 10 9e ff 4c 89 c1 48 c7 c7 f0 26 64 a8 e8 50 12 fe ff <0f> 0b 48 89 f2 4c 89 c1 48 89 fe 48 c7 c7 a0 27 64 a8 e8 39 12 fe [32451.229710] RSP: 0018:ffffb08fd553fde0 EFLAGS: 00010286 [32451.229715] RAX: 0000000000000075 RBX: ffffe16d871550c0 RCX: 0000000000000000 [32451.229721] RDX: ffff9e53c73e9f60 RSI: ffff9e53c73db2a0 RDI: ffff9e53c73db2a0 [32451.229725] RBP: ffffd08fbc661cd0 R08: 0000000000000000 R09: ffffb08fd553fc20 [32451.229729] R10: ffffb08fd553fc18 R11: 0000000000000000 R12: ffff9e4ce4e29008 [32451.229732] R13: ffff9e4d85543010 R14: ffff9e4d2848f1c0 R15: ffff9e4d85543000 [32451.229736] FS: 0000000000000000(0000) GS:ffff9e53c7200000(0000) knlGS:0000000000000000 [32451.229740] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [32451.229744] CR2: 00000fb21455dfe8 CR3: 0000000142968000 CR4: 0000000000350ee0 [32451.229748] note: kworker/u64:0[80665] exited with preempt_count 2 [32476.846645] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [vivaldi-bin:6991] [32476.846658] Modules linked in: snd_seq_dummy snd_hrtimer tun uinput nls_utf8 isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc xpad ff_memless vfat fat hid_logitech_hidpp hid_logitech_dj joydev snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc snd_hda_intel videobuf2_memops videobuf2_v4l2 snd_intel_dspcfg mt76x2u soundwire_intel mt76x2_common videobuf2_common mt76x02_usb soundwire_generic_allocation mt76_usb intel_rapl_msr intel_rapl_common iwlmvm snd_soc_core snd_usb_audio videodev snd_compress mt76x02_lib btusb snd_usbmidi_lib snd_pcm_dmaengine mt76 soundwire_cadence btrtl snd_rawmidi btbcm snd_hda_codec mc btintel edac_mce_amd mac80211 kvm_amd snd_hda_core uas bluetooth ac97_bus [32476.846704] iwlwifi snd_hwdep usb_storage kvm snd_seq libarc4 snd_seq_device ecdh_generic cfg80211 ecc irqbypass snd_pcm rapl eeepc_wmi asus_wmi sparse_keymap snd_timer rfkill snd video sp5100_tco wmi_bmof i2c_piix4 k10temp soundcore acpi_cpufreq binfmt_misc ip_tables amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched crct10dif_pclmul crc32_pclmul drm_kms_helper crc32c_intel cec drm igb ghash_clmulni_intel nvme ccp dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [32476.846874] irq event stamp: 0 [32476.846877] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [32476.846883] hardirqs last disabled at (0): [] copy_process+0x8fb/0x1de0 [32476.846889] softirqs last enabled at (0): [] copy_process+0x8fb/0x1de0 [32476.846892] softirqs last disabled at (0): [<0000000000000000>] 0x0 [32476.846896] CPU: 0 PID: 6991 Comm: vivaldi-bin Tainted: G D W --------- --- 5.11.0-155.fc35.x86_64+debug #1 [32476.846900] Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021 [32476.846904] RIP: 0010:native_queued_spin_lock_slowpath+0x1ce/0x200 [32476.846909] Code: c1 ef 12 83 e0 03 83 ef 01 48 c1 e0 05 48 63 ff 48 05 80 f1 1e 00 48 03 04 fd 00 39 6e a8 48 89 08 8b 41 08 85 c0 75 09 f3 90 <8b> 41 08 85 c0 74 f7 48 8b 39 48 85 ff 0f 84 56 ff ff ff 0f 0d 0f [32476.846913] RSP: 0000:ffffb08fd2937c10 EFLAGS: 00000246 [32476.846917] RAX: 0000000000000000 RBX: ffffe16d9e844240 RCX: ffff9e53c6bef180 [32476.846920] RDX: ffff9e4cc11a3d28 RSI: 0000000000040000 RDI: 000000000000000d [32476.846923] RBP: ffff9e4cc11a3d28 R08: 0000000000040000 R09: 0000000000000000 [32476.846926] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9e4cc11a3d40 [32476.846929] R13: ffff9e4cc11a3d28 R14: ffff9e4cc11a3d20 R15: 0000000000ddd8d8 [32476.846932] FS: 00007f4b852a0300(0000) GS:ffff9e53c6a00000(0000) knlGS:0000000000000000 [32476.846935] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [32476.846939] CR2: 00003d0509d83000 CR3: 000000017733a000 CR4: 0000000000350ef0 [32476.846942] Call Trace: [32476.846946] do_raw_spin_lock+0x94/0xa0 [32476.846951] _raw_spin_lock+0x63/0x80 [32476.846955] zswap_frontswap_load+0x2f/0x2f0 [32476.846960] ? psi_group_change+0x27d/0x290 [32476.846965] __frontswap_load+0xc3/0x160 [32476.846969] swap_readpage+0x1ca/0x3a0 [32476.846974] swapin_readahead+0x2ee/0x4e0 [32476.846979] do_swap_page+0x4a4/0x900 [32476.846983] ? lock_release+0x1e9/0x400 [32476.846987] ? trace_hardirqs_on+0x1b/0xe0 [32476.846992] handle_mm_fault+0xe7d/0x19d0 [32476.846997] do_user_addr_fault+0x1c7/0x4c0 [32476.847003] exc_page_fault+0x67/0x2a0 [32476.847007] ? asm_exc_page_fault+0x8/0x30 [32476.847011] asm_exc_page_fault+0x1e/0x30 [32476.847015] RIP: 0033:0x55a5d9c33379 [32476.847018] Code: 00 00 4d 89 75 00 4c 89 f0 48 25 00 00 fc ff 48 8b 40 08 41 c7 46 03 03 00 00 00 49 8b 4d 00 44 89 61 07 49 8b 5d 00 4d 8b 37 <44> 89 73 0b a9 00 00 04 00 75 1a 83 e0 18 48 85 c0 74 12 49 8b 45 [32476.847022] RSP: 002b:00007fff34882340 EFLAGS: 00010206 [32476.847025] RAX: 0000000000000012 RBX: 00003d0509d82ff5 RCX: 00003d0509d82ff5 [32476.847028] RDX: 000055a5dbb578bb RSI: 0000000000000001 RDI: 0000000000000000 [32476.847031] RBP: 00007fff34882370 R08: 0000000000000000 R09: 0000000000000000 [32476.847034] R10: 00003d0500000000 R11: ffffffff00000000 R12: 0000000000000023 [32476.847037] R13: 0000376895df40a0 R14: 00003d0509d82f7d R15: 0000376895df4080 [32476.849645] watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [Chrome_ChildIOT:5472] [32476.849652] Modules linked in: snd_seq_dummy snd_hrtimer tun uinput nls_utf8 isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc xpad ff_memless vfat fat hid_logitech_hidpp hid_logitech_dj joydev snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc snd_hda_intel videobuf2_memops videobuf2_v4l2 snd_intel_dspcfg mt76x2u soundwire_intel mt76x2_common videobuf2_common mt76x02_usb soundwire_generic_allocation mt76_usb intel_rapl_msr intel_rapl_common iwlmvm snd_soc_core snd_usb_audio videodev snd_compress mt76x02_lib btusb snd_usbmidi_lib snd_pcm_dmaengine mt76 soundwire_cadence btrtl snd_rawmidi btbcm snd_hda_codec mc btintel edac_mce_amd mac80211 kvm_amd snd_hda_core uas bluetooth ac97_bus [32476.849687] iwlwifi snd_hwdep usb_storage kvm snd_seq libarc4 snd_seq_device ecdh_generic cfg80211 ecc irqbypass snd_pcm rapl eeepc_wmi asus_wmi sparse_keymap snd_timer rfkill snd video sp5100_tco wmi_bmof i2c_piix4 k10temp soundcore acpi_cpufreq binfmt_misc ip_tables amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched crct10dif_pclmul crc32_pclmul drm_kms_helper crc32c_intel cec drm igb ghash_clmulni_intel nvme ccp dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [32476.849713] irq event stamp: 0 [32476.849715] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [32476.849719] hardirqs last disabled at (0): [] copy_process+0x8fb/0x1de0 [32476.849723] softirqs last enabled at (0): [] copy_process+0x8fb/0x1de0 [32476.849726] softirqs last disabled at (0): [<0000000000000000>] 0x0 [32476.849728] CPU: 1 PID: 5472 Comm: Chrome_ChildIOT Tainted: G D W L --------- --- 5.11.0-155.fc35.x86_64+debug #1 [32476.849732] Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 3402 01/13/2021 [32476.849734] RIP: 0010:native_queued_spin_lock_slowpath+0x1ce/0x200 [32476.849738] Code: c1 ef 12 83 e0 03 83 ef 01 48 c1 e0 05 48 63 ff 48 05 80 f1 1e 00 48 03 04 fd 00 39 6e a8 48 89 08 8b 41 08 85 c0 75 09 f3 90 <8b> 41 08 85 c0 74 f7 48 8b 39 48 85 ff 0f 84 56 ff ff ff 0f 0d 0f [32476.849741] RSP: 0000:ffffb08fc6c4bc10 EFLAGS: 00000246 [32476.849744] RAX: 0000000000000000 RBX: ffffe16d96c11140 RCX: ffff9e53c6def180 [32476.849746] RDX: ffff9e4cc11a3d28 RSI: 0000000000080000 RDI: 0000000000000016 [32476.849749] RBP: ffff9e4cc11a3d28 R08: 0000000000080000 R09: 0000000000000000 [32476.849751] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9e4cc11a3d40 [32476.849753] R13: ffff9e4cc11a3d28 R14: ffff9e4cc11a3d20 R15: 0000000000f89940 [32476.849756] FS: 00007f9a02233640(0000) GS:ffff9e53c6c00000(0000) knlGS:0000000000000000 [32476.849758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [32476.849761] CR2: 00002312fd44ecd8 CR3: 00000001618f6000 CR4: 0000000000350ee0 [32476.849763] Call Trace: [32476.849766] do_raw_spin_lock+0x94/0xa0 [32476.849769] _raw_spin_lock+0x63/0x80 [32476.849772] zswap_frontswap_load+0x2f/0x2f0 [32476.849775] ? psi_group_change+0x27d/0x290 [32476.849779] __frontswap_load+0xc3/0x160 [32476.849782] swap_readpage+0x1ca/0x3a0 [32476.849786] swapin_readahead+0x450/0x4e0 [32476.849789] ? lock_release+0x1e9/0x400 [32476.849793] do_swap_page+0x4a4/0x900 [32476.849796] ? lock_release+0x1e9/0x400 [32476.849799] ? trace_hardirqs_on+0x1b/0xe0 [32476.849802] handle_mm_fault+0xe7d/0x19d0 [32476.849807] do_user_addr_fault+0x1c7/0x4c0 [32476.849810] exc_page_fault+0x67/0x2a0 [32476.849813] ? asm_exc_page_fault+0x8/0x30 [32476.849816] asm_exc_page_fault+0x1e/0x30 [32476.849819] RIP: 0033:0x555d3e644fe2 [32476.849822] Code: c3 cc cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 53 48 83 ec 68 49 89 fe 4c 8b 3f 48 8b 05 76 4d bd 08 49 8b 1f 48 31 c3 74 67 <48> 33 43 08 49 39 c7 74 4e c7 45 b8 04 00 00 00 c7 45 c8 04 00 00 [32476.849824] RSP: 002b:00007f9a02231ab0 EFLAGS: 00010202 [32476.849827] RAX: fffffffd55160cdb RBX: 00002312fd44ecd0 RCX: 0000000000000005 [32476.850461] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 00002312fcd3f2a0 [32476.850463] RBP: 00007f9a02231b30 R08: 00002312fcfa4003 R09: 00007ffd204a88d0 [32476.850465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555d3e492590 [32476.850467] R13: 0000555d3e4cd840 R14: 00002312fcd3f2a0 R15: 00002312fd2481e0 [32476.850644] watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [brave:5451] [32476.850652] Modules linked in: snd_seq_dummy snd_hrtimer tun uinput nls_utf8 isofs rfcomm netconsole nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep zstd sunrpc xpad ff_memless vfat fat hid_logitech_hidpp hid_logitech_dj joydev snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc snd_hda_intel videobuf2_memops videobuf2_v4l2 snd_intel_dspcfg mt76x2u soundwire_intel mt76x2_common videobuf2_common mt76x02_usb soundwire_generic_allocation mt76_usb intel_rapl_msr intel_rapl_common iwlmvm snd_soc_core snd_usb_audio videodev snd_compress mt76x02_lib btusb snd_usbmidi_lib snd_pcm_dmaengine mt76 soundwire_cadence btrtl snd_rawmidi btbcm snd_hda_codec mc btintel edac_mce_amd mac80211 kvm_amd snd_hda_core uas bluetooth ac97_bus [32476.850687] iwlwifi snd_hwdep usb_storage kvm snd_seq libarc4 snd_seq_device ecdh_generic cfg80211 ecc irqbypass snd_pcm rapl eeepc_wmi asus_wmi sparse_keymap snd_timer rfkill snd video sp5100_tco wmi_bmof i2c_piix4 k10temp soundcore acpi_cpufreq binfmt_misc ip_tables amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched crct10dif_pclmul crc32_pclmul drm_kms_helper crc32c_intel cec drm igb ghash_clmulni_intel nvme ccp dca nvme_core i2c_algo_bit wmi pinctrl_amd fuse [32476.850714] irq event stamp: 0 [32476.850716] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [32476.850719] hardirqs last disabled at (0): [] copy_process+0x8fb/0x1de0 [32476.850723] softirqs last enabled at (0): [] copy_process+0x8fb/0x1de0 [32476.850726] softirqs last disabled at (0): [<0000000000000000>] 0x0 Full kernel log is here: https://pastebin.com/4SbhNp7V -- Best Regards, Mike Gavrilov.