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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 957A4C433DF for ; Mon, 6 Jul 2020 21:46:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3B606206B6 for ; Mon, 6 Jul 2020 21:46:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=tilman-klaeger.de header.i=@tilman-klaeger.de header.b="gdCkqucc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726889AbgGFVqa (ORCPT ); Mon, 6 Jul 2020 17:46:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725860AbgGFVqa (ORCPT ); Mon, 6 Jul 2020 17:46:30 -0400 X-Greylist: delayed 427 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 06 Jul 2020 14:46:29 PDT Received: from mail.3c7.de (srv2.3c7.de [IPv6:2a00:12c0:1015:103::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB180C061755 for ; Mon, 6 Jul 2020 14:46:29 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by mail.3c7.de (Postfix) with ESMTP id 161D4C0253; Mon, 6 Jul 2020 23:39:17 +0200 (CEST) X-DKIM: Sendmail DKIM Filter v2.8.2 mail.3c7.de 161D4C0253 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tilman-klaeger.de; s=dkim_6; t=1594071557; bh=hsGtRH5Bsi7nGMG8UJhb2UzWkBPrgVZkhQVYejbdGxc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type; b=gdCkquccQj79fWPqk5ydqPjH4FWewe52F8Ov9ILOltF+eo6x99SrCCLjRasyoqtQv FQdM8YrLFy9I8NU7ZVOAyTiU4BqOi1TFdE+0HuXwASOEXKehWbuWg96lfmsDGcYe/E Vd8SPWd1mpNp2Mq1vw3Qm7UWkAkb5r6GrUjZUWuY= X-Virus-Scanned: Mail checked by aMaViSd at mail.3c7.de Received: from asterix.localnet (dynamic-2a01-0c22-a85f-d400-eb7f-89b5-cd0e-481d.c22.pool.telefonica.de [IPv6:2a01:c22:a85f:d400:eb7f:89b5:cd0e:481d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: tilman@3c7.de) by mail.3c7.de (Postfix) with ESMTPSA id E0DDCC020D; Mon, 6 Jul 2020 23:39:13 +0200 (CEST) From: Tilman Klaeger To: Cong Wang Cc: =?ISO-8859-1?Q?Dani=EBl?= Sonck , netdev@vger.kernel.org Subject: Re: BUG: kernel NULL pointer dereference in __cgroup_bpf_run_filter_skb Date: Mon, 06 Jul 2020 23:39:11 +0200 Message-ID: <15785048.G5i6evtKuP@asterix> In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Am Sonntag, 14. Juni 2020, 20:29:34 CEST schrieb Cong Wang: > Hello, >=20 > On Sun, Jun 14, 2020 at 5:39 AM Dani=EBl Sonck wrote: > > Hello, > >=20 > > I found on the archive that this bug I encountered also happened to > > others. I too have a very similar stacktrace. The issue I'm > > experiencing is: > >=20 > > Whenever I fully boot my cluster, in some time, the host crashes with > > the __cgroup_bpf_run_filter_skb NULL pointer dereference. This has > > been sporadic enough before not to cause real issues. However, as of > > lately, the bug is triggered much more frequently. I've changed my > > server hardware so I could capture serial output in order to get the > > trace. This trace looked very similar as reported by Lu Fengqi. As it > > currently stands, I cannot run the cluster as it's almost instantly > > crashing the host. >=20 > This has been reported for multiple times. Are you able to test the > attached patch? And let me know if everything goes fine with it. >=20 > I suspect we may still leak some cgroup refcnt even with the patch, > but it might be much harder to trigger with this patch applied. >=20 > Thanks. Hello, I experienced the same (or at least a very similiar) bug on my system and t= his=20 patch definitelly works for me. I've had uptimes between a couple hours and= 3=20 days, now the system has been working without panics for 14 days. Two simil= iar=20 systems haven't any trouble yet but are also less intensively used, especia= lly=20 in terms of docker. This may change and maybe I can report back again.=20 Thank you very much for the patch! Kind regards Tilman P.S. For the statistics or further bugtracking: My setup, if you need any more details just let me know: * 2x10 Core Intel Xeon Silver 4114 (Sky Lake) in Dell Workstation * NVidia Quadro P5000 GPU using proprietary drivers * Current Arch Linux on Linux Kernel 5.7.4, then changed to 5.4.47 (LTS, no= w=20 patched and running, not working without patch) * Docker 1:19.03.11-1 with changing containers (Developement Workstation) Here are two logs captured using serial console: [40282.425243] BUG: kernel NULL pointer dereference, address: 0000000000000= 010 [40282.432201] #PF: supervisor read access in kernel mode [40282.437330] #PF: error_code(0x0000) - not-present page [40282.442458] PGD 0 P4D 0=20 [40282.444992] Oops: 0000 [#1] SMP PTI [40282.448475] CPU: 27 PID: 0 Comm: swapper/27 Tainted: P OE = =20 5.4.46-1-lts #1 [40282.456461] Hardware name: Dell Inc. Precision 7820 Tower/05WNJ2, BIOS=20 2.0.5 05/17/2019 [40282.464452] RIP: 0010:__cgroup_bpf_run_filter_skb+0xca/0x1d0 [40282.470099] Code: 48 89 83 c8 00 00 00 48 01 c8 48 89 14 24 48 89 43 50 = 41=20 83 ff 01 0f 84 92 00 00 00 44 89 fa 48 8d 84 d6 30 06 00 00 48 8b 00 <48> 8= b 78=20 10 4c 8d 78 10 48 85 ff 0f 84 df 00 00 00 bd 01 00 00 00 [40282.488830] RSP: 0018:ffffa8180cff8bb8 EFLAGS: 00010297 [40282.494043] RAX: 0000000000000000 RBX: ffff91836559a400 RCX: 00000000000= 0008c [40282.501161] RDX: 0000000000000000 RSI: ffff91ab6810d000 RDI: ffff91874e8= 7e900 [40282.508279] RBP: ffff91836559a400 R08: 0000000000000000 R09: 00000000000= 00001 [40282.515398] R10: 0000000000001003 R11: 0000000000000000 R12:=20 0000000000000014 [40282.522517] R13: 0000000000000014 R14: ffff9183772332a2 R15: 00000000000= 00000 [40282.529636] FS: 0000000000000000(0000) GS:ffff918770e40000(0000) knlGS: 0000000000000000 [40282.537708] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [40282.543440] CR2: 0000000000000010 CR3: 00000025d960a006 CR4:=20 00000000007606e0 [40282.550559] DR0: 0000000000000000 DR1: 0000000000000000 DR2:=20 0000000000000000 [40282.557678] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000= 00400 [40282.564798] PKRU: 55555554 [40282.567498] Call Trace: [40282.569940] [40282.571953] sk_filter_trim_cap+0x123/0x220 [40282.576131] ? tcp_v4_inbound_md5_hash+0x56/0x170 [40282.580825] tcp_v4_rcv+0x990/0xbc0 [40282.584308] ip_protocol_deliver_rcu+0x2b/0x1b0 [40282.588827] ip_local_deliver_finish+0x44/0x50 [40282.593278] ip_local_deliver+0xf5/0x100 [40282.597191] ? ip_protocol_deliver_rcu+0x1b0/0x1b0 [40282.601970] ip_rcv+0xc5/0xd0 [40282.604930] ? ip_rcv_finish_core.constprop.0+0x390/0x390 [40282.610319] __netif_receive_skb_one_core+0x87/0xa0 [40282.615187] netif_receive_skb_internal+0x52/0xc0 [40282.619882] napi_gro_receive+0x114/0x140 [40282.623895] e1000_clean_rx_irq+0x1f7/0x420 [e1000e] [40282.628853] e1000e_poll+0x7a/0x2c0 [e1000e] [40282.633115] net_rx_action+0x16d/0x3f0 [40282.636859] __do_softirq+0xe9/0x2dc [40282.640429] irq_exit+0xa2/0xe0 [40282.643562] do_IRQ+0x58/0xe0 [40282.646523] common_interrupt+0xf/0xf [40282.650176] [40282.652274] RIP: 0010:cpuidle_enter_state+0xea/0x400 [40282.657227] Code: ec 2d 76 e8 e8 38 99 ff 48 89 04 24 0f 1f 44 00 00 31 = ff e8=20 98 46 99 ff 80 7c 24 0b 00 0f 85 12 02 00 00 fb 66 0f 1f 44 00 00 <45> 85 e= 4 0f=20 88 1e 02 00 00 49 63 cc 48 8b 34 24 48 8d 04 49 48 c1 [40282.675957] RSP: 0018:ffffa8180031be80 EFLAGS: 00000246 ORIG_RAX: ffffff= ffffffffdc [40282.683511] RAX: ffff918770e6a500 RBX: ffffffff8a8bba00 RCX: 00000000000= 0001f [40282.690630] RDX: 0000000000000000 RSI: 000000003a518aaa RDI:=20 0000000000000000 [40282.697750] RBP: ffff918770e74d00 R08: 000024a2fba509a0 R09: 000000000a8= 0a000 [40282.704867] R10: 0000000000004e29 R11: ffff918770e692c0 R12: 00000000000= 00003 [40282.711986] R13: ffffffff8a8bbb20 R14: ffffffff8a8bbb38 R15: 000024a2fb5= 09686 [40282.719106] cpuidle_enter+0x29/0x40 [40282.722675] do_idle+0x1c4/0x240 [40282.725894] cpu_startup_entry+0x19/0x20 [40282.729810] start_secondary+0x176/0x1d0 [40282.733726] secondary_startup_64+0xb6/0xc0 [40282.737899] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memo= ps=20 videobuf2_v4l2 videobuf2_common videodev mc uinput rfcomm fuse xt_nat veth= =20 xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtyp= e=20 br_netfilter bridge cfg80211 tun md4 nls_utf8 cifs libarc4 dns_resolver fsc= ache=20 libdes ext4 mbcache jbd2 iptable_security iptable_raw iptable_mangle=20 xt_conntrack xt_tcpudp cmac algif_hash iptable_filter iptable_nat 8021q nf_= nat=20 algif_skcipher nf_conntrack garp af_alg mrp stp nf_defrag_ipv6 bnep llc=20 nf_defrag_ipv4 intel_rapl_msr intel_rapl_common isst_if_common nvidia_drm(P= OE)=20 nvidia_modeset(POE) skx_edac nfit nvidia(POE) snd_hda_codec_hdmi=20 x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm dell_wmi=20 dell_smbios dcdbas iTCO_wdt irqbypass mei_wdt iTCO_vendor_support wmi_bmof= =20 sparse_keymap dell_wmi_descriptor intel_wmi_thunderbolt dell_smm_hwmon=20 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel nls_iso8859_1= =20 snd_hda_codec_realtek nls_cp437 [40282.737948] crypto_simd snd_hda_codec_generic vfat cryptd glue_helper f= at=20 intel_cstate ledtrig_audio btusb btrtl btbcm btintel snd_hda_intel bluetoot= h=20 snd_intel_nhlt snd_hda_codec drm_kms_helper snd_hda_core snd_hwdep ofpart=20 snd_pcm ipmi_devintf cmdlinepart ipmi_msghandler intel_spi_pci ecdh_generic= =20 intel_spi snd_timer syscopyarea intel_uncore rfkill sysfillrect sysimgblt=20 spi_nor ecc mousedev intel_rapl_perf input_leds e1000e fb_sys_fops crc16 sn= d=20 vmd mtd soundcore mei_me i2c_i801 lpc_ich mei ioatdma dca wmi evdev mac_hid= =20 nfsd nfs_acl drm lockd auth_rpcgss grace sunrpc crypto_user agpgart ip_tabl= es=20 x_tables hid_logitech_hidpp uas usb_storage btrfs libcrc32c crc32c_generic = xor=20 hid_logitech_dj hid_generic usbhid hid raid6_pq sr_mod cdrom sd_mod serio_r= aw=20 atkbd libps2 ahci ata_generic libahci pata_acpi crc32c_intel libata xhci_pc= i=20 scsi_mod xhci_hcd i8042 serio [40282.900416] CR2: 0000000000000010 [40282.903737] ---[ end trace 59098be211c9040b ]--- [40282.924544] RIP: 0010:__cgroup_bpf_run_filter_skb+0xca/0x1d0 [40282.930191] Code: 48 89 83 c8 00 00 00 48 01 c8 48 89 14 24 48 89 43 50 = 41=20 83 ff 01 0f 84 92 00 00 00 44 89 fa 48 8d 84 d6 30 06 00 00 48 8b 00 <48> 8= b 78=20 10 4c 8d 78 10 48 85 ff 0f 84 df 00 00 00 bd 01 00 00 00 [40282.948922] RSP: 0018:ffffa8180cff8bb8 EFLAGS: 00010297 [40282.954136] RAX: 0000000000000000 RBX: ffff91836559a400 RCX: 00000000000= 0008c [40282.961254] RDX: 0000000000000000 RSI: ffff91ab6810d000 RDI: ffff91874e8= 7e900 [40282.968373] RBP: ffff91836559a400 R08: 0000000000000000 R09: 00000000000= 00001 [40282.975490] R10: 0000000000001003 R11: 0000000000000000 R12:=20 0000000000000014 [40282.982608] R13: 0000000000000014 R14: ffff9183772332a2 R15: 00000000000= 00000 [40282.989729] FS: 0000000000000000(0000) GS:ffff918770e40000(0000) knlGS: 0000000000000000 [40282.997801] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [40283.003533] CR2: 0000000000000010 CR3: 00000025d960a006 CR4:=20 00000000007606e0 [40283.010652] DR0: 0000000000000000 DR1: 0000000000000000 DR2:=20 0000000000000000 [40283.017771] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000= 00400 [40283.024890] PKRU: 55555554 [40283.027589] Kernel panic - not syncing: Fatal exception in interrupt [40283.034002] Kernel Offset: 0x8600000 from 0xffffffff81000000 (relocation= range:=20 0xffffffff80000000-0xffffffffbfffffff) [40283.060906] ---[ end Kernel panic - not syncing: Fatal exception in=20 interrupt ]--- The second one, slightly different: [131527.564414] general protection fault: 0000 [#1] SMP PTI [131527.569729] CPU: 21 PID: 0 Comm: swapper/21 Tainted: P OE = =20 5.4.47-1-lts #1 [131527.577805] Hardware name: Dell Inc. Precision 7820 Tower/05WNJ2, BIOS= =20 2.0.5 05/17/2019 [131527.585890] RIP: 0010:cgroup_sk_free+0x26/0x80 [131527.590415] Code: 93 0f 1f 00 0f 1f 44 00 00 53 48 8b 07 48 c7 c3 b0 d3= 05=20 a0 a8 01 75 07 48 85 c0 48 0f 45 d8 48 8b 83 c8 08 00 00 a8 03 75 1a <65> 4= 8 ff=20 08 f6 43 7c 01 74 02 5b c3 48 8b 43 18 a8 03 75 26 65 48 [131527.609235] RSP: 0018:ffffafb3ccec0c30 EFLAGS: 00010246 [131527.614536] RAX: ffff8c9e2199f000 RBX: ffff8c9e2199f000 RCX: 0000000000= 000040 [131527.621740] RDX: 0000000000000000 RSI: 0000000000000000 RDI:=20 ffff8c9b0814f450 [131527.628947] RBP: ffff8c9b0814f1c0 R08: 0000000000000000 R09:=20 0000000000000001 [131527.636152] R10: ffff8c9a1fe6e600 R11: 0000000000000000 R12: ffff8c9e27= 430fc0 [131527.643359] R13: 0000000000000000 R14: ffff8c9b0814f248 R15:=20 0000000000000000 [131527.650566] FS: 0000000000000000(0000) GS:ffff8c9e30cc0000(0000) knlGS: 0000000000000000 [131527.658727] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [131527.664545] CR2: 00007f1b7002e730 CR3: 000000259f60a003 CR4:=20 00000000007606e0 [131527.671752] DR0: 0000000000000000 DR1: 0000000000000000 DR2:=20 0000000000000000 [131527.678959] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:=20 0000000000000400 [131527.686166] PKRU: 55555554 [131527.688952] Call Trace: [131527.691479] [131527.693577] __sk_destruct+0x11a/0x1d0 [131527.697409] tcp_v4_rcv+0xac2/0xbc0 [131527.700977] ip_protocol_deliver_rcu+0x2b/0x1b0 [131527.705584] ip_local_deliver_finish+0x44/0x50 [131527.710102] ip_local_deliver+0xf5/0x100 [131527.714102] ? ip_protocol_deliver_rcu+0x1b0/0x1b0 [131527.718967] ip_rcv+0xc5/0xd0 [131527.722013] ? ip_rcv_finish_core.constprop.0+0x390/0x390 [131527.727504] __netif_receive_skb_one_core+0x87/0xa0 [131527.732459] netif_receive_skb_internal+0x52/0xc0 [131527.737240] napi_gro_receive+0x114/0x140 [131527.741353] e1000_clean_rx_irq+0x1f7/0x420 [e1000e] [131527.746398] e1000e_poll+0x7a/0x2c0 [e1000e] [131527.750745] net_rx_action+0x16d/0x3f0 [131527.754574] __do_softirq+0xe9/0x2dc [131527.758230] irq_exit+0xa2/0xe0 [131527.761450] do_IRQ+0x58/0xe0 [131527.764497] common_interrupt+0xf/0xf [131527.768236] [131527.770419] RIP: 0010:cpuidle_enter_state+0xea/0x400 [131527.775460] Code: ec ad 60 e8 08 39 99 ff 48 89 04 24 0f 1f 44 00 00 31= ff=20 e8 b8 46 99 ff 80 7c 24 0b 00 0f 85 12 02 00 00 fb 66 0f 1f 44 00 00 <45> 8= 5 e4=20 0f 88 1e 02 00 00 49 63 cc 48 8b 34 24 48 8d 04 49 48 c1 [131527.794278] RSP: 0018:ffffafb3c02ebe80 EFLAGS: 00000246 ORIG_RAX: fffff= fffffffffdc [131527.801919] RAX: ffff8c9e30cea500 RBX: ffffffffa00bba00 RCX: 0000000000= 00001f [131527.809124] RDX: 0000000000000000 RSI: 000000003a518aaa RDI:=20 0000000000000000 [131527.816329] RBP: ffff8c9e30cf4d00 R08: 0000779fa5c0a379 R09: 0000779ff0= 724ae1 [131527.823536] R10: 0000000000002284 R11: ffff8c9e30ce92c0 R12:=20 0000000000000003 [131527.830743] R13: ffffffffa00bbb20 R14: ffffffffa00bbb38 R15: 0000779fa5= bdd653 [131527.837952] cpuidle_enter+0x29/0x40 [131527.841609] do_idle+0x1c4/0x240 [131527.844918] cpu_startup_entry+0x19/0x20 [131527.848921] start_secondary+0x176/0x1d0 [131527.852935] secondary_startup_64+0xb6/0xc0 [131527.857194] Modules linked in: rfcomm(E) fuse(E) xt_nat veth xt_MASQUER= ADE=20 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter= =20 bridge cfg80211 tun md4 nls_utf8 cifs libarc4 dns_resolver fscache libdes=20 iptable_security iptable_raw iptable_mangle xt_conntrack xt_tcpudp cmac=20 iptable_filter algif_hash iptable_nat nf_nat algif_skcipher nf_conntrack 80= 21q=20 garp af_alg mrp nf_defrag_ipv6 stp bnep llc nf_defrag_ipv4 intel_rapl_msr=20 intel_rapl_common isst_if_common nvidia_drm(POE) nvidia_modeset(POE)=20 snd_hda_codec_hdmi nvidia(POE) skx_edac nfit x86_pkg_temp_thermal=20 intel_powerclamp coretemp kvm_intel dell_wmi nls_iso8859_1 nls_cp437=20 snd_hda_codec_realtek dell_smbios kvm dcdbas iTCO_wdt vfat mei_wdt irqbypas= s=20 iTCO_vendor_support dell_wmi_descriptor wmi_bmof sparse_keymap=20 intel_wmi_thunderbolt dell_smm_hwmon snd_hda_codec_generic fat=20 crct10dif_pclmul crc32_pclmul ledtrig_audio btusb ghash_clmulni_intel btrtl= =20 aesni_intel btbcm snd_hda_intel btintel ofpart snd_intel_nhlt [131527.857229] crypto_simd bluetooth cmdlinepart snd_hda_codec cryptd=20 glue_helper drm_kms_helper snd_hda_core intel_cstate snd_hwdep snd_pcm=20 ipmi_devintf intel_spi_pci ipmi_msghandler intel_spi intel_uncore snd_timer= =20 syscopyarea ecdh_generic spi_nor snd sysfillrect mei_me rfkill sysimgblt=20 ioatdma ecc mousedev intel_rapl_perf input_leds e1000e fb_sys_fops crc16 mt= d=20 vmd soundcore i2c_i801 lpc_ich mei wmi dca evdev mac_hid nfsd nfs_acl drm=20 lockd auth_rpcgss grace sunrpc crypto_user agpgart ip_tables x_tables=20 hid_logitech_hidpp btrfs libcrc32c crc32c_generic xor uas usb_storage=20 hid_logitech_dj hid_generic usbhid hid raid6_pq sr_mod cdrom sd_mod serio_r= aw=20 atkbd libps2 ata_generic ahci pata_acpi libahci xhci_pci libata crc32c_inte= l=20 xhci_hcd scsi_mod i8042 serio [131528.010630] ---[ end trace 779287d3980c54e5 ]--- [131528.026121] RIP: 0010:cgroup_sk_free+0x26/0x80 [131528.030646] Code: 93 0f 1f 00 0f 1f 44 00 00 53 48 8b 07 48 c7 c3 b0 d3= 05=20 a0 a8 01 75 07 48 85 c0 48 0f 45 d8 48 8b 83 c8 08 00 00 a8 03 75 1a <65> 4= 8 ff=20 08 f6 43 7c 01 74 02 5b c3 48 8b 43 18 a8 03 75 26 65 48 [131528.049469] RSP: 0018:ffffafb3ccec0c30 EFLAGS: 00010246 [131528.054774] RAX: ffff8c9e2199f000 RBX: ffff8c9e2199f000 RCX: 0000000000= 000040 [131528.061982] RDX: 0000000000000000 RSI: 0000000000000000 RDI:=20 ffff8c9b0814f450 [131528.069191] RBP: ffff8c9b0814f1c0 R08: 0000000000000000 R09:=20 0000000000000001 [131528.076417] R10: ffff8c9a1fe6e600 R11: 0000000000000000 R12: ffff8c9e27= 430fc0 [131528.083628] R13: 0000000000000000 R14: ffff8c9b0814f248 R15:=20 0000000000000000 [131528.090839] FS: 0000000000000000(0000) GS:ffff8c9e30cc0000(0000) knlGS: 0000000000000000 [131528.099002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [131528.104826] CR2: 00007f1b7002e730 CR3: 000000259f60a003 CR4:=20 00000000007606e0 [131528.114316] DR0: 0000000000000000 DR1: 0000000000000000 DR2:=20 0000000000000000 [131528.121524] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:=20 0000000000000400 [131528.128734] PKRU: 55555554 [131528.131524] Kernel panic - not syncing: Fatal exception in interrupt [131528.138042] Kernel Offset: 0x1de00000 from 0xffffffff81000000 (relocati= on=20 range: 0xffffffff80000000-0xffffffffbfffffff) [131528.161583] ---[ end Kernel panic - not syncing: Fatal exception in=20 interrupt ]---