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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id i23-20020a170906115700b00a3edc441790si1179482eja.42.2024.02.20.06.57.17 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Feb 2024 06:57:18 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-73202-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=DvgDBTMe; arc=pass (i=1 dkim=pass dkdomain=kernel.org); spf=pass (google.com: domain of linux-kernel+bounces-73202-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-73202-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 1FA161F2381A for ; Tue, 20 Feb 2024 14:57:05 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BC5A271B41; Tue, 20 Feb 2024 14:56:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DvgDBTMe" Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AFA28605DC for ; Tue, 20 Feb 2024 14:56:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708441017; cv=none; b=mUSu2oEvFdZ0XvVBrI15tmlZ9kQTl+rJ0IfCkG0liW7g0hdwU0ONd8liF0ErYIoQrdxgWCLIcXAOd8K48PDHrMKynSblXnRNDA8qtBOhX6CkeppaQwUt30WwVLmvaG4dOVo6Ct8gGBDcmQSSajGlHMFDoE1XKD6TjLEIHqX7G24= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708441017; c=relaxed/simple; bh=+/UKbtdXVLBG8loU7+LgE3YgGFxmU3l/FQyUDm9FBlE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=mZgSrJIk7r54FHRfs2IBQ7ZZLeN55tPiOwBZ+oIeYBP3v2RN7K+YsDUPMfm9/AVsqES+UdxlnpSF3B5xdGmDx/E0R8vdrdngZR7xzwJ4Pqj1RSKTYDF+RlnvOlSVO/GWmGD7rzhrgF3lljgz5bJa+CGpZfkSKfdPZ18UH/77o54= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DvgDBTMe; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 89FCCC43390; Tue, 20 Feb 2024 14:56:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708441017; bh=+/UKbtdXVLBG8loU7+LgE3YgGFxmU3l/FQyUDm9FBlE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DvgDBTMeLR2VaNqPDAg34yxd6aWuttUsptZ9kEk5V7gJ2FJ4mks9p+zo6MlL/b52W aCyxJGaU7iAE9tQZp/5FwNq5HANjcBprQNcLdnCW0ENLBi3lTTGXqql2MycsaJChl3 Yip4sTLRiHRj53SDnPazFs86/BmKtk6WgyFCuKfJnW77HMqrhkzFz3liO4tZ3rKNQO pk88uUwNDLTn7Ac9nPNGbqCzyj/zVPaATsRo0cH846OwHD14a7JC2MgmxK3+DjtVSO 9zOMJh8RTRgsKqA/To7Y5NY+tueO/d8EyoAkFmColUabs0I4G6DFqXFO0SaOnKNfhd DC49vPjRCfeSw== Date: Tue, 20 Feb 2024 15:56:53 +0100 From: Maxime Ripard To: Christian =?utf-8?B?S8O2bmln?= Cc: Bagas Sanjaya , Erhard Furtner , Linux DRI Development , Huang Rui , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Karolina Stolarek , "Kirill A. Shutemov" , Andrew Morton , Zi Yan , Linux Kernel Mailing List , Linux Memory Management List Subject: Re: Running ttm_device_test leads to list_add corruption. prev->next should be next (ffffffffc05cd428), but was 6b6b6b6b6b6b6b6b. (prev=ffffa0b1a5c034f0) (kernel 6.7.5) Message-ID: <4xggxtkk44m3xcfucbougtuhr66s2pc7tilpnju7xnyw45facb@odsrpqp57kiz> References: <20240219230116.77b8ad68@yea> <9cdf0baa-f544-4fa8-bee3-568b790527cc@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="6ge6lcgzg2duuvln" Content-Disposition: inline In-Reply-To: <9cdf0baa-f544-4fa8-bee3-568b790527cc@amd.com> --6ge6lcgzg2duuvln Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 20, 2024 at 02:28:53PM +0100, Christian K=F6nig wrote: > Am 20.02.24 um 10:12 schrieb Bagas Sanjaya: > > On Mon, Feb 19, 2024 at 11:01:16PM +0100, Erhard Furtner wrote: > > > Greetings! > > >=20 > > > 'modprobe -v ttm-device-test' on my Ryzen 5950X amd64 box and on my T= alos II (ppc64) leads to immediate list_add corruption. > > >=20 > > > The machines stay useable via VNC but the issue seems to cause memory= corruption which shows up later on when PAGE_POISONING is enabled: > > >=20 > > > [...] > > > KTAP version 1 > > > 1..1 > > > KTAP version 1 > > > # Subtest: ttm_device > > > # module: ttm_device_test > > > 1..5 > > > ok 1 ttm_device_init_basic > > > # ttm_device_init_multiple: ASSERTION FAILED at drivers/gpu/drm/= ttm/tests/ttm_device_test.c:68 > > > Expected list_count_nodes(&ttm_devs[0].device_list) =3D=3D num_d= ev, but > > > list_count_nodes(&ttm_devs[0].device_list) =3D=3D 4 (0x4) > > > num_dev =3D=3D 3 (0x3) > > > not ok 2 ttm_device_init_multiple > > > list_add corruption. prev->next should be next (ffffffffc05cd428), bu= t was 6b6b6b6b6b6b6b6b. (prev=3Dffffa0b1a5c034f0). > > > ------------[ cut here ]------------ > > > kernel BUG at lib/list_debug.c:32! > > > invalid opcode: 0000 [#1] SMP NOPTI > > > CPU: 6 PID: 2129 Comm: kunit_try_catch Tainted: G N 6= =2E7.5-Zen3 #1 > > > Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS P3.= 40 01/18/2024 > > > RIP: 0010:__list_add_valid_or_report+0x67/0x9c > > > Code: c7 c7 26 ff c4 90 48 89 c6 e8 2f 32 ca ff 0f 0b 4c 8b 02 49 39 = f0 74 14 48 89 d1 48 c7 c7 78 ff c4 90 4c 89 c2 e8 13 32 ca ff <0f> 0b 48 3= 9 d7 74 05 4c 39 c7 75 17 48 89 f1 48 89 c2 48 89 fe 48 > > > RSP: 0018:ffffb23b05d27df8 EFLAGS: 00010246 > > > RAX: 0000000000000075 RBX: 0000000000000000 RCX: 0000000000000000 > > > RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > > > RBP: ffffa0b1a5c034f0 R08: 0000000000000000 R09: 0000000000000000 > > > R10: 0000000000000000 R11: 0000000000000000 R12: ffffa0b1843b2628 > > > R13: ffffa0b1b7c1f478 R14: ffffffffc0696480 R15: ffffa0b1a5c11000 > > > FS: 0000000000000000(0000) GS:ffffa0b85eb80000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > > CR2: 00007ff09c005038 CR3: 000000026ce14000 CR4: 0000000000b50ef0 > > > Call Trace: > > > > > > ? __die_body+0x15/0x65 > > > ? die+0x2f/0x48 > > > ? do_trap+0x76/0x109 > > > ? __list_add_valid_or_report+0x67/0x9c > > > ? __list_add_valid_or_report+0x67/0x9c > > > ? do_error_trap+0x69/0xa6 > > > ? __list_add_valid_or_report+0x67/0x9c > > > ? exc_invalid_op+0x4d/0x71 > > > ? __list_add_valid_or_report+0x67/0x9c > > > ? asm_exc_invalid_op+0x1a/0x20 > > > ? __list_add_valid_or_report+0x67/0x9c > > > ? __list_add_valid_or_report+0x67/0x9c > > > ttm_device_init+0x10e/0x157 [ttm] > > > ttm_device_kunit_init+0x3d/0x51 [ttm_kunit_helpers] > > > ttm_device_fini_basic+0x6d/0x1b3 [ttm_device_test] > > > ? timekeeping_get_ns+0x19/0x3b > > > ? srso_alias_return_thunk+0x5/0xfbef5 > > > ? ktime_get_ts64+0x40/0x92 > > > kunit_try_run_case+0xaf/0x163 [kunit] > > > ? kunit_try_catch_throw+0x1b/0x1b [kunit] > > > ? kunit_try_catch_throw+0x1b/0x1b [kunit] > > > kunit_generic_run_threadfn_adapter+0x15/0x20 [kunit] > > > kthread+0xcf/0xd7 > > > ? kthread_complete_and_exit+0x1a/0x1a > > > ret_from_fork+0x23/0x35 > > > ? kthread_complete_and_exit+0x1a/0x1a > > > ret_from_fork_asm+0x11/0x20 > > > > > > Modules linked in: ttm_device_test ttm_kunit_helpers drm_kunit_helper= s kunit rfkill dm_crypt nhpoly1305_avx2 nhpoly1305 chacha_generic chacha_x8= 6_64 libchacha adiantum libpoly1305 algif_skcipher input_leds joydev hid_ge= neric usbhid hid amdgpu snd_hda_codec_hdmi amd64_edac snd_hda_intel amdxcp = mfd_core snd_intel_dspcfg edac_mce_amd gpu_sched snd_hda_codec video snd_hw= dep drm_suballoc_helper snd_hda_core i2c_algo_bit drm_ttm_helper snd_pcm wm= i_bmof ttm snd_timer evdev drm_exec snd drm_display_helper soundcore kvm_am= d k10temp drm_buddy rapl wmi gpio_amdpt gpio_generic button lz4 lz4_compres= s lz4_decompress zram sg nct6775 nct6775_core hwmon_vid hwmon loop configfs= sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 sha1_generic aesni_int= el libaes crypto_simd cryptd xhci_pci xhci_hcd ccp usbcore usb_common sunrp= c dm_mod pkcs8_key_parser efivarfs > > > ---[ end trace 0000000000000000 ]--- > > > RIP: 0010:__list_add_valid_or_report+0x67/0x9c > > > Code: c7 c7 26 ff c4 90 48 89 c6 e8 2f 32 ca ff 0f 0b 4c 8b 02 49 39 = f0 74 14 48 89 d1 48 c7 c7 78 ff c4 90 4c 89 c2 e8 13 32 ca ff <0f> 0b 48 3= 9 d7 74 05 4c 39 c7 75 17 48 89 f1 48 89 c2 48 89 fe 48 > > > RSP: 0018:ffffb23b05d27df8 EFLAGS: 00010246 > > > RAX: 0000000000000075 RBX: 0000000000000000 RCX: 0000000000000000 > > > RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > > > RBP: ffffa0b1a5c034f0 R08: 0000000000000000 R09: 0000000000000000 > > > R10: 0000000000000000 R11: 0000000000000000 R12: ffffa0b1843b2628 > > > R13: ffffa0b1b7c1f478 R14: ffffffffc0696480 R15: ffffa0b1a5c11000 > > > FS: 0000000000000000(0000) GS:ffffa0b85eb80000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > > CR2: 00007ff09c005038 CR3: 000000026ce14000 CR4: 0000000000b50ef0 > > > Key type dns_resolver registered > > > NFS: Registering the id_resolver key type > > > Key type id_resolver registered > > > Key type id_legacy registered > > > # ttm_device_fini_basic: try timed out > > > general protection fault, probably for non-canonical address 0x6b6b6b= 6b6b6b6b6b: 0000 [#2] SMP NOPTI > > > CPU: 26 PID: 2119 Comm: modprobe Tainted: G D N 6.7.5-Z= en3 #1 > > > Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS P3.= 40 01/18/2024 > > > RIP: 0010:kthread_stop+0x3c/0x78 > > > Code: f0 0f c1 43 28 be 02 00 00 00 85 c0 74 0c 8d 50 01 09 c2 79 0a = be 01 00 00 00 e8 f5 31 37 00 48 89 df e8 35 f1 ff ff 48 89 c5 80 08 0= 2 48 89 df e8 6a ff ff ff f0 80 4b 02 02 48 89 df e8 f6 > > > RSP: 0018:ffffb23b01fff938 EFLAGS: 00010246 > > > RAX: 6b6b6b6b6b6b6b6b RBX: ffffa0b170ab6040 RCX: 0000000000000000 > > > RDX: 000000006b6b6b6f RSI: 0000000000000002 RDI: 0000000000000000 > > > RBP: 6b6b6b6b6b6b6b6b R08: 0000000000000000 R09: 0000000000000000 > > > R10: 0000000000000000 R11: 0000000000000000 R12: ffffa0b170ab6040 > > > R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 > > > FS: 00007f9321e6ec40(0000) GS:ffffa0b85f080000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > > CR2: 00005592ea51ef40 CR3: 0000000189590000 CR4: 0000000000b50ef0 > > > Call Trace: > > > > > > ? __die_body+0x15/0x65 > > > ? die_addr+0x37/0x50 > > > ? exc_general_protection+0x1b6/0x1ec > > > ? asm_exc_general_protection+0x26/0x30 > > > ? kthread_stop+0x3c/0x78 > > > ? kthread_stop+0x39/0x78 > > > kunit_try_catch_run+0xc9/0x155 [kunit] > > > kunit_run_case_catch_errors+0x3f/0x93 [kunit] > > > kunit_run_tests+0x182/0x516 [kunit] > > > ? kunit_try_run_case_cleanup+0x39/0x39 [kunit] > > > ? kunit_catch_run_case_cleanup+0x85/0x85 [kunit] > > > __kunit_test_suites_init+0x64/0x83 [kunit] > > > kunit_module_notify+0xda/0x177 [kunit] > > > notifier_call_chain+0x5a/0x92 > > > blocking_notifier_call_chain+0x3e/0x60 > > > do_init_module+0xcb/0x218 > > > init_module_from_file+0x7a/0x99 > > > __do_sys_finit_module+0x162/0x223 > > > do_syscall_64+0x6e/0xd8 > > > entry_SYSCALL_64_after_hwframe+0x4b/0x53 > > > RIP: 0033:0x7f9321f7a479 > > > Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 = 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f= 0 ff ff 73 01 c3 48 8b 0d 87 89 0c 00 f7 d8 64 89 01 48 > > > RSP: 002b:00007ffe2e350908 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 > > > RAX: ffffffffffffffda RBX: 00005590b57cef40 RCX: 00007f9321f7a479 > > > RDX: 0000000000000000 RSI: 00005590b5100c7c RDI: 0000000000000007 > > > RBP: 0000000000000000 R08: 00007f9322043b20 R09: 0000000000000000 > > > R10: 0000000000000050 R11: 0000000000000246 R12: 0000000000040000 > > > R13: 00005590b5100c7c R14: 00005590b57cefe0 R15: 0000000000000000 > > > > > > Modules linked in: nfsv4 dns_resolver nfs lockd grace ttm_device_test= ttm_kunit_helpers drm_kunit_helpers kunit rfkill dm_crypt nhpoly1305_avx2 = nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 algi= f_skcipher input_leds joydev hid_generic usbhid hid amdgpu snd_hda_codec_hd= mi amd64_edac snd_hda_intel amdxcp mfd_core snd_intel_dspcfg edac_mce_amd g= pu_sched snd_hda_codec video snd_hwdep drm_suballoc_helper snd_hda_core i2c= _algo_bit drm_ttm_helper snd_pcm wmi_bmof ttm snd_timer evdev drm_exec snd = drm_display_helper soundcore kvm_amd k10temp drm_buddy rapl wmi gpio_amdpt = gpio_generic button lz4 lz4_compress lz4_decompress zram sg nct6775 nct6775= _core hwmon_vid hwmon loop configfs sha512_ssse3 sha512_generic sha256_ssse= 3 sha1_ssse3 sha1_generic aesni_intel libaes crypto_simd cryptd xhci_pci xh= ci_hcd ccp usbcore usb_common sunrpc dm_mod pkcs8_key_parser efivarfs > > > ---[ end trace 0000000000000000 ]--- > > > RIP: 0010:__list_add_valid_or_report+0x67/0x9c > > > Code: c7 c7 26 ff c4 90 48 89 c6 e8 2f 32 ca ff 0f 0b 4c 8b 02 49 39 = f0 74 14 48 89 d1 48 c7 c7 78 ff c4 90 4c 89 c2 e8 13 32 ca ff <0f> 0b 48 3= 9 d7 74 05 4c 39 c7 75 17 48 89 f1 48 89 c2 48 89 fe 48 > > > RSP: 0018:ffffb23b05d27df8 EFLAGS: 00010246 > > > RAX: 0000000000000075 RBX: 0000000000000000 RCX: 0000000000000000 > > > RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > > > RBP: ffffa0b1a5c034f0 R08: 0000000000000000 R09: 0000000000000000 > > > R10: 0000000000000000 R11: 0000000000000000 R12: ffffa0b1843b2628 > > > R13: ffffa0b1b7c1f478 R14: ffffffffc0696480 R15: ffffa0b1a5c11000 > > > FS: 00007f9321e6ec40(0000) GS:ffffa0b85f080000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > > CR2: 00005592ea51ef40 CR3: 0000000189590000 CR4: 0000000000b50ef0 > > > =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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > > > BUG task_struct (Tainted: G D N): Poison overwritten > > > ---------------------------------------------------------------------= -------- > > >=20 > > > 0xffffa0b170ab6068-0xffffa0b170ab6068 @offset=3D24680. First byte 0x6= c instead of 0x6b > > > Slab 0xffffea8944c2ac00 objects=3D8 used=3D8 fp=3D0x0000000000000000 = flags=3D0x4000000000000840(slab|head|zone=3D1) > > > Object 0xffffa0b170ab6040 @offset=3D24640 fp=3D0x0000000000000000 > > >=20 > > > Redzone ffffa0b170ab6000: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone ffffa0b170ab6010: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone ffffa0b170ab6020: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone ffffa0b170ab6030: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Object ffffa0b170ab6040: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object ffffa0b170ab6050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object ffffa0b170ab6060: 6b 6b 6b 6b 6b 6b 6b 6b 6c 6b 6b 6b 6b 6b = 6b 6b kkkkkkkklkkkkkkk > > > Object ffffa0b170ab6070: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > [...] > > > Object ffffa0b170ab6fb0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object ffffa0b170ab6fc0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b a5 kkkkkkkkkkkkkkk. > > > Redzone ffffa0b170ab6fd0: bb bb bb bb bb bb bb bb = ........ > > > Padding ffffa0b170ab6fe0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding ffffa0b170ab6ff0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > CPU: 13 PID: 2 Comm: kthreadd Tainted: G D N 6.7.5-Zen3= #1 > > > Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS P3.= 40 01/18/2024 > > > Call Trace: > > > > > > dump_stack_lvl+0x37/0x52 > > > check_bytes_and_report+0xa7/0x107 > > > check_object+0x157/0x253 > > > alloc_debug_processing+0x5d/0x111 > > > ___slab_alloc+0x288/0x561 > > > ? copy_process+0x35f/0x2276 > > > ? kthread_is_per_cpu+0x22/0x22 > > > ret_from_fork+0x23/0x35 > > > ? kthread_is_per_cpu+0x22/0x22 > > > ret_from_fork_asm+0x11/0x20 > > > > > > FIX task_struct: Restoring Poison 0xffffa0b170ab6068-0xffffa0b170ab60= 68=3D0x6b > > > FIX task_struct: Marking all objects used > > >=20 > > >=20 > > > The Talos II ppc64 trace looks a bit different: > > >=20 > > > [...] > > > KTAP version 1 > > > 1..1 > > > KTAP version 1 > > > # Subtest: ttm_pool > > > # module: ttm_pool_test > > > 1..8 > > > KTAP version 1 > > > # Subtest: ttm_pool_alloc_basic > > > ok 1 One page > > > ok 2 More than one page > > > ok 3 Above the allocation limit > > > # ttm_pool_alloc_basic: ASSERTION FAILED at drivers/gpu/drm/ttm/= tests/ttm_pool_test.c:162 > > > Expected err =3D=3D 0, but > > > err =3D=3D -12 (0xfffffffffffffff4) > > > not ok 4 One page, with coherent DMA mappings enabled > > > list_add corruption. prev->next should be next (c00800000cf64fc0), bu= t was 0000000000000000. (prev=3Dc0002000061a4ad0). > > > ------------[ cut here ]------------ > > > kernel BUG at lib/list_debug.c:32! > > > Oops: Exception in kernel mode, sig: 5 [#1] > > > BE PAGE_SIZE=3D4K MMU=3DRadix SMP NR_CPUS=3D32 NUMA PowerNV > > > Modules linked in: ttm_pool_test ttm_kunit_helpers drm_kunit_helpers = kunit snd_hrtimer snd_seq snd_seq_device snd_timer snd soundcore cfg80211 r= fkill input_leds evdev hid_generic usbhid hid radeon xts xhci_pci ctr xhci_= hcd drm_suballoc_helper i2c_algo_bit drm_ttm_helper cbc ttm aes_generic ofp= art usbcore libaes powernv_flash drm_display_helper at24 vmx_crypto gf128mu= l mtd backlight usb_common regmap_i2c opal_prd ibmpowernv lz4 lz4_compress = lz4_decompress zram pkcs8_key_parser powernv_cpufreq loop dm_mod configfs > > > CPU: 29 PID: 934 Comm: kunit_try_catch Tainted: G TN 6= =2E7.5-gentoo-P9 #1 > > > Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 = PowerNV > > > NIP: c000000000864744 LR: c000000000864740 CTR: 0000000000000000 > > > REGS: c000200015333a30 TRAP: 0700 Tainted: G TN (6.= 7.5-gentoo-P9) > > > MSR: 9000000000029032 CR: 24000222 XER: 000= 00000 > > > CFAR: c0000000001d5620 IRQMASK: 0 > > > GPR00: 0000000000000000 c000200015333cd0 c0000000011b4700 00000000000= 00075 > > > GPR04: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR08: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR12: 0000000000000000 c0002007fa4d5e00 c000000000182548 c0002000066= aa1c0 > > > GPR16: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR20: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR24: 0000000000000000 c0002000061a4010 c00800000cf64fc0 c0002000061= a4020 > > > GPR28: c0002000061a4ad0 c00800000cf64fa8 c00800000cf64fa0 c0002000061= a4010 > > > NIP [c000000000864744] __list_add_valid_or_report+0xd4/0x120 > > > LR [c000000000864740] __list_add_valid_or_report+0xd0/0x120 > > > Call Trace: > > > [c000200015333cd0] [c000000000864740] __list_add_valid_or_report+0xd0= /0x120 (unreliable) > > > [c000200015333d30] [c00800000cf5eed8] ttm_pool_type_init+0xa0/0x120 [= ttm] > > > [c000200015333d80] [c00800000cf5efec] ttm_pool_init+0x94/0x170 [ttm] > > > [c000200015333de0] [c00800000cc6b324] ttm_pool_alloc_basic+0x9c/0x670= [ttm_pool_test] > > > [c000200015333ea0] [c00800000bddf7f0] kunit_try_run_case+0xb8/0x220 [= kunit] > > > [c000200015333f60] [c00800000bde27c8] kunit_generic_run_threadfn_adap= ter+0x30/0x50 [kunit] > > > [c000200015333f90] [c000000000182670] kthread+0x130/0x140 > > > [c000200015333fe0] [c00000000000d030] start_kernel_thread+0x14/0x18 > > > Code: f8010070 4b970ea9 60000000 0fe00000 7c0802a6 3c62fff1 7d064378 = 7d244b78 38639600 f8010070 4b970e85 60000000 <0fe00000> 7c0802a6 3c62fff1 7= ca62b78 > > > ---[ end trace 0000000000000000 ]--- > > >=20 > > > note: kunit_try_catch[934] exited with irqs disabled > > > # ttm_pool_alloc_basic: try timed out > > > BUG: Unable to handle kernel data access at 0x6b6b6b6b6b6b6b6b > > > Faulting instruction address: 0xc000000000181ae4 > > > Oops: Kernel access of bad area, sig: 11 [#2] > > > BE PAGE_SIZE=3D4K MMU=3DRadix SMP NR_CPUS=3D32 NUMA PowerNV > > > Modules linked in: ttm_pool_test ttm_kunit_helpers drm_kunit_helpers = kunit snd_hrtimer snd_seq snd_seq_device snd_timer snd soundcore cfg80211 r= fkill input_leds evdev hid_generic usbhid hid radeon xts xhci_pci ctr xhci_= hcd drm_suballoc_helper i2c_algo_bit drm_ttm_helper cbc ttm aes_generic ofp= art usbcore libaes powernv_flash drm_display_helper at24 vmx_crypto gf128mu= l mtd backlight usb_common regmap_i2c opal_prd ibmpowernv lz4 lz4_compress = lz4_decompress zram pkcs8_key_parser powernv_cpufreq loop dm_mod configfs > > > CPU: 17 PID: 921 Comm: modprobe Tainted: G D TN 6.7.5-ge= ntoo-P9 #1 > > > Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 = PowerNV > > > NIP: c000000000181ae4 LR: c00800000bde2a54 CTR: c000000000181a80 > > > REGS: c0002000153871b0 TRAP: 0380 Tainted: G D TN (6.= 7.5-gentoo-P9) > > > MSR: 900000000280b032 CR: 4442228= 2 XER: 00000000 > > > CFAR: c00800000bde53ec IRQMASK: 0 > > > GPR00: c00800000bde2a54 c000200015387450 c0000000011b4700 c0000000b1e= 34d00 > > > GPR04: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR08: 0000000000000000 0000000000000000 000000006b6b6b6c c00800000bd= e53d8 > > > GPR12: c000000000181a80 c0002007fa4dd600 0000000020000000 00000000200= 00000 > > > GPR16: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR20: 0000000000000002 0000000020000000 c0000000023d78f8 c0000000023= d78a8 > > > GPR24: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR28: c0002000153876c0 6b6b6b6b6b6b6b6b c0000000b1e34d00 c0000000b1e= 34eb8 > > > NIP [c000000000181ae4] kthread_stop+0x64/0x1c0 > > > LR [c00800000bde2a54] kunit_try_catch_run+0x26c/0x2c0 [kunit] > > > Call Trace: > > > [c000200015387450] [c0000000001d5934] vprintk+0x84/0xc0 (unreliable) > > > [c000200015387490] [c00800000bde2a54] kunit_try_catch_run+0x26c/0x2c0= [kunit] > > > [c000200015387540] [c00800000bde4f14] kunit_run_case_catch_errors+0x6= 0/0xf0 [kunit] > > > [c0002000153875a0] [c00800000bddf448] kunit_run_tests+0x560/0x680 [ku= nit] > > > [c0002000153878d0] [c00800000bddf614] __kunit_test_suites_init+0xac/0= x160 [kunit] > > > [c000200015387970] [c00800000bde349c] kunit_exec_run_tests+0x44/0xb0 = [kunit] > > > [c0002000153879f0] [c00800000bddecbc] kunit_module_notify+0x4d4/0x590= [kunit] > > > [c000200015387a90] [c0000000001842f0] notifier_call_chain+0xa0/0x190 > > > [c000200015387b30] [c00000000018480c] blocking_notifier_call_chain+0x= 5c/0xb0 > > > [c000200015387b70] [c00000000020cf64] do_init_module+0x234/0x330 > > > [c000200015387bf0] [c00000000021054c] init_module_from_file+0x9c/0xf0 > > > [c000200015387cc0] [c000000000210740] sys_finit_module+0x190/0x420 > > > [c000200015387d80] [c00000000002b808] system_call_exception+0x1b8/0x3= a0 > > > [c000200015387e50] [c00000000000c270] system_call_vectored_common+0xf= 0/0x280 > > > --- interrupt: 3000 at 0x3fff9eb3d7c8 > > > NIP: 00003fff9eb3d7c8 LR: 0000000000000000 CTR: 0000000000000000 > > > REGS: c000200015387e80 TRAP: 3000 Tainted: G D TN (6.= 7.5-gentoo-P9) > > > MSR: 900000000280f032 CR: 4842= 2244 XER: 00000000 > > > IRQMASK: 0 > > > GPR00: 0000000000000161 00003fffc80d3ab0 00003fff9ec37100 00000000000= 00007 > > > GPR04: 0000000134f6df90 0000000000000000 000000000000001f 00000000000= 00045 > > > GPR08: 0000000000000000 0000000000000000 0000000000000000 00000000000= 00000 > > > GPR12: 0000000000000000 00003fff9ef7fbe0 0000000020000000 00000000200= 00000 > > > GPR16: 0000000000000000 0000000000000000 0000000000000020 00000000200= 00000 > > > GPR20: 0000000161994850 0000000020000000 0000000000000000 00000000000= 00000 > > > GPR24: 0000000000000000 0000000000000000 0000000000000000 00000001619= 93f90 > > > GPR28: 0000000134f6df90 0000000000040000 0000000000000000 00000001619= 93cc0 > > > NIP [00003fff9eb3d7c8] 0x3fff9eb3d7c8 > > > LR [0000000000000000] 0x0 > > > --- interrupt: 3000 > > > Code: 40c2fff4 2c090000 41820164 39490001 7d494b78 2c090000 418000f4 = 813e01a8 6d290020 79295fe2 0b090000 ebbe0738 <7d20e8a8> 61290002 7d20e9ad 4= 0c2fff4 > > > ---[ end trace 0000000000000000 ]--- > > >=20 > > > note: modprobe[921] exited with irqs disabled > > > =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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > > > BUG task_struct (Tainted: G D TN): Poison overwritten > > > ---------------------------------------------------------------------= -------- > > >=20 > > > 0xc0000000b1e34ebb-0xc0000000b1e34ebb @offset=3D20155. First byte 0x6= c instead of 0x6b > > > Slab 0xc00c000002c78c00 objects=3D5 used=3D4 fp=3D0xc0000000b1e33380 = flags=3D0x7ffc0000000840(slab|head|node=3D0|zone=3D0|lastcpupid=3D0x1fff) > > > Object 0xc0000000b1e34d00 @offset=3D19712 fp=3D0xc0000000b1e33380 > > >=20 > > > Redzone c0000000b1e34c80: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34c90: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34ca0: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34cb0: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34cc0: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34cd0: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34ce0: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Redzone c0000000b1e34cf0: bb bb bb bb bb bb bb bb bb bb bb bb bb bb = bb bb ................ > > > Object c0000000b1e34d00: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d10: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d20: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d30: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d40: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d50: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d60: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d70: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d80: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34d90: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34da0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34db0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34dc0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34dd0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34de0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34df0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e00: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e10: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e20: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e30: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e40: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e50: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e60: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e70: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e80: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34e90: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34ea0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Object c0000000b1e34eb0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6c 6b 6b = 6b 6b kkkkkkkkkkklkkkk > > > Object c0000000b1e34ec0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > [...] > > > Object c0000000b1e35cf0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b = 6b 6b kkkkkkkkkkkkkkkk > > > Redzone c0000000b1e36580: bb bb bb bb bb bb bb bb = ........ > > > Padding c0000000b1e36590: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding c0000000b1e365a0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding c0000000b1e365b0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding c0000000b1e365c0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding c0000000b1e365d0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding c0000000b1e365e0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > Padding c0000000b1e365f0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a = 5a 5a ZZZZZZZZZZZZZZZZ > > > CPU: 28 PID: 2 Comm: kthreadd Tainted: G D TN 6.7.5-gent= oo-P9 #1 > > > Hardware name: T2P9D01 REV 1.01 POWER9 0x4e1202 opal:skiboot-bc106a0 = PowerNV > > > Call Trace: > > > [c00000000593b890] [c000000000e8ecf8] dump_stack_lvl+0x6c/0xb0 (unrel= iable) > > > [c00000000593b8c0] [c00000000041dad0] print_trailer+0x1e0/0x22c > > > [c00000000593b940] [c0000000004155f4] check_bytes_and_report+0x224/0x= 240 > > > [c00000000593b9f0] [c00000000041596c] check_object+0x35c/0x4a0 > > > [c00000000593ba40] [c0000000004168dc] alloc_debug_processing+0xdc/0x2= 70 > > > [c00000000593bac0] [c000000000416c8c] get_partial_node.part.0+0x21c/0= x460 > > > [c00000000593bb80] [c000000000417148] ___slab_alloc+0x278/0xb20 > > > [c00000000593bc90] [c000000000417b3c] kmem_cache_alloc_node+0x14c/0x6= 30 > > > [c00000000593bd20] [c000000000140618] copy_process+0x408/0x3270 > > > [c00000000593be00] [c0000000001435f4] kernel_clone+0xc4/0x5b0 > > > [c00000000593be80] [c000000000143dc4] kernel_thread+0x84/0xc0 > > > [c00000000593bf40] [c0000000001829bc] kthreadd+0x1ec/0x290 > > > [c00000000593bfe0] [c00000000000d030] start_kernel_thread+0x14/0x18 > > > FIX task_struct: Restoring Poison 0xc0000000b1e34ebb-0xc0000000b1e34e= bb=3D0x6b > > > FIX task_struct: Marking all objects used > > >=20 > > >=20 > > > Full dmesg and kernel .config of both machines attached. > > >=20 > > > Regards, > > > Erhard > > > [ 0.000000] Linux version 6.7.5-Zen3 (root@supah) (gcc (Gentoo 13.= 2.1_p20240113-r1 p12) 13.2.1 20240113, GNU ld (Gentoo 2.41 p5) 2.41.0) #1 S= MP Mon Feb 19 12:44:46 -00 2024 > > Is it vanilla kernel (i.e. no patches applied)? Can you also check curr= ent > > mainline (v6.8-rc5)? > >=20 > > Confused... >=20 > Oh, that is most likely kind of expected behavior. >=20 > This kunit test is not meant to be run on real hardware, but rather just = as > stand a long kunit tests within user mode linux. I was assuming that it > doesn't even compiles on bare metal. >=20 > We should probably either double check the kconfig options to prevent > compiling it or modify the test so that it can run on real hardware as we= ll. I think any cross-compiled kunit run will be impossible to differentiate =66rom running on real hardware. We should just make it work there. Maxime --6ge6lcgzg2duuvln Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCZdS9tQAKCRDj7w1vZxhR xfKNAQCpt57pcDIP/FpsNqWE5aAVLxrQMDQTyY+gls28jdEYIwEAsPFKPNGtLvZo Sp6v1avsVwxBoKeBkY7c9A5YR1+jTQ0= =KM0F -----END PGP SIGNATURE----- --6ge6lcgzg2duuvln--