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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 398B5EB64D7 for ; Fri, 16 Jun 2023 05:34:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240880AbjFPFeM (ORCPT ); Fri, 16 Jun 2023 01:34:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229756AbjFPFeH (ORCPT ); Fri, 16 Jun 2023 01:34:07 -0400 X-Greylist: delayed 498 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 15 Jun 2023 22:34:05 PDT Received: from h7.fbrelay.privateemail.com (h7.fbrelay.privateemail.com [162.0.218.230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 524DF1BE8; Thu, 15 Jun 2023 22:34:05 -0700 (PDT) Received: from MTA-15-3.privateemail.com (unknown [198.54.122.141]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by h7.fbrelay.privateemail.com (Postfix) with ESMTPSA id 94A726045A; Fri, 16 Jun 2023 01:25:45 -0400 (EDT) Received: from mta-15.privateemail.com (localhost [127.0.0.1]) by mta-15.privateemail.com (Postfix) with ESMTP id 5606218000B1; Fri, 16 Jun 2023 01:25:43 -0400 (EDT) Received: from [192.168.2.177] (bras-base-toroon4332w-grc-19-174-93-80-116.dsl.bell.ca [174.93.80.116]) by mta-15.privateemail.com (Postfix) with ESMTPA id B4143180018C; Fri, 16 Jun 2023 01:25:40 -0400 (EDT) Date: Fri, 16 Jun 2023 01:25:33 -0400 From: Hamza Mahfooz Subject: KVM page-fault on Kernel 6.3.8 To: kvm@vger.kernel.org Cc: regressions@lists.linux.dev, linux-kernel@vger.kernel.org Message-Id: X-Mailer: geary/43.0 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I am seeing the following page-fault on the latest stable kernel: BUG: unable to handle page fault for address: ffffb4ff0cd20034 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10002a067 P4D 10002a067 PUD 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 7 PID: 2675 Comm: CPU 7/KVM Not tainted 6.3.8-arch1-1 #1 a1d299e746aebdb27c523dd3bd94aba6f54915c7 Hardware name: ASUS System Product Name/ProArt X670E-CREATOR WIFI, BIOS 1303 04/27/2023 RIP: 0010:try_grab_folio+0x14f/0x370 Code: 83 f8 04 75 6f 44 89 ee 4c 89 e7 e8 6b bc 0b 00 84 c0 74 60 4c 8b 63 08 41 f6 c4 01 0f 85 b0 01 00 00 0f 1f 44 00 00 49 89 dc <41> 8b 44 24 34 85 c0 0f 88 f8 00 00 00 41 8b 44 24 34 85 c0 74 58 RSP: 0018:ffff9fa98504b948 EFLAGS: 00010086 RAX: 0000000000000002 RBX: fffff4ff0cd21480 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000001 RDI: fffff4ff0cd21480 RBP: 0000000000000000 R08: ffff8b2edb510980 R09: 00007f5624253000 R10: 80000003348008e7 R11: 00007f5624253000 R12: ffffb4ff0cd20000 R13: 0000000000000001 R14: 0000000000000003 R15: 0000000000000001 FS: 00007f548a7fc6c0(0000) GS:ffff8b35f83c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffb4ff0cd20034 CR3: 0000000113e70000 CR4: 0000000000750ee0 PKRU: 55555554 Call Trace: ? __die+0x23/0x70 ? page_fault_oops+0x171/0x4e0 ? exc_page_fault+0x172/0x180 ? asm_exc_page_fault+0x26/0x30 ? try_grab_folio+0x14f/0x370 internal_get_user_pages_fast+0x883/0x1150 __iov_iter_get_pages_alloc+0xdd/0x780 ? kmem_cache_alloc+0x16f/0x330 ? bio_associate_blkg_from_css+0xcd/0x340 iov_iter_get_pages+0x1d/0x40 bio_iov_iter_get_pages+0xa1/0x480 __blkdev_direct_IO_async+0xc5/0x1b0 blkdev_read_iter+0x127/0x1d0 aio_read+0x132/0x210 ? io_submit_one+0x46a/0x8b0 io_submit_one+0x46a/0x8b0 ? kvm_arch_vcpu_put+0x128/0x190 [kvm 711ceda1c40511ce22d1f99f4e9e574def76b25e] ? kvm_arch_vcpu_ioctl_run+0x579/0x1770 [kvm 711ceda1c40511ce22d1f99f4e9e574def76b25e] __x64_sys_io_submit+0xad/0x190 do_syscall_64+0x5d/0x90 ? __x64_sys_ioctl+0xac/0xd0 ? syscall_exit_to_user_mode+0x1b/0x40 ? do_syscall_64+0x6c/0x90 ? syscall_exit_to_user_mode+0x1b/0x40 ? do_syscall_64+0x6c/0x90 ? syscall_exit_to_user_mode+0x1b/0x40 ? do_syscall_64+0x6c/0x90 ? syscall_exit_to_user_mode+0x1b/0x40 ? do_syscall_64+0x6c/0x90 ? do_syscall_64+0x6c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f57ac0912ed Code: 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 f0 ff ff 73 01 c3 48 8b 0d 3b 7a 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007f5427ab97b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f548a7fc1d0 RCX: 00007f57ac0912ed RDX: 00007f5427ab9800 RSI: 0000000000000001 RDI: 00007f57a9d24000 RBP: 00007f57a9d24000 R08: 0000000000000001 R09: 0000000000000001 R10: 00007f54740044f0 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000004 R14: 00007f5427ab9800 R15: 000000000000000e Modules linked in: hid_playstation led_class_multicolor ff_memless tun snd_seq_dummy snd_hrtimer snd_seq xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp nft_compat nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables libcrc32c nfnetlink bridge stp llc vfat fat snd_hda_codec_realtek snd_hda_codec_generic mt7921e snd_hda_codec_hdmi mt7921_common snd_usb_audio intel_rapl_msr mt76_connac_lib snd_hda_intel intel_rapl_common snd_intel_dspcfg mt76 snd_usbmidi_lib btusb snd_intel_sdw_acpi edac_mce_amd snd_rawmidi btrtl snd_hda_codec btbcm snd_seq_device btintel snd_hda_core kvm_amd mc snd_hwdep eeepc_wmi btmtk snd_pcm asus_wmi kvm mac80211 bluetooth ledtrig_audio atlantic snd_timer i8042 sparse_keymap libarc4 ecdh_generic rapl platform_profile serio intel_wmi_thunderbolt i2c_piix4 wmi_bmof pcspkr k10temp thunderbolt snd igc ucsi_acpi macsec soundcore cfg80211 typec_ucsi mousedev joydev typec roles rfkill gpio_amdpt acpi_cpufreq gpio_generic mac_hid dm_multipath crypto_user fuse loop bpf_preload ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 dm_crypt cbc encrypted_keys trusted asn1_encoder tee dm_mod hid_logitech_hidpp hid_logitech_dj usbhid amdgpu crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic i2c_algo_bit drm_ttm_helper gf128mul nvme ghash_clmulni_intel ttm sha512_ssse3 drm_buddy aesni_intel gpu_sched crypto_simd nvme_core drm_display_helper cryptd ccp xhci_pci cec nvme_common xhci_pci_renesas video wmi vfio_pci vfio_pci_core irqbypass vfio_iommu_type1 vfio iommufd CR2: ffffb4ff0cd20034 ---[ end trace 0000000000000000 ]--- RIP: 0010:try_grab_folio+0x14f/0x370 Code: 83 f8 04 75 6f 44 89 ee 4c 89 e7 e8 6b bc 0b 00 84 c0 74 60 4c 8b 63 08 41 f6 c4 01 0f 85 b0 01 00 00 0f 1f 44 00 00 49 89 dc <41> 8b 44 24 34 85 c0 0f 88 f8 00 00 00 41 8b 44 24 34 85 c0 74 58 RSP: 0018:ffff9fa98504b948 EFLAGS: 00010086 RAX: 0000000000000002 RBX: fffff4ff0cd21480 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000001 RDI: fffff4ff0cd21480 RBP: 0000000000000000 R08: ffff8b2edb510980 R09: 00007f5624253000 R10: 80000003348008e7 R11: 00007f5624253000 R12: ffffb4ff0cd20000 R13: 0000000000000001 R14: 0000000000000003 R15: 0000000000000001 FS: 00007f548a7fc6c0(0000) GS:ffff8b35f83c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffb4ff0cd20034 CR3: 0000000113e70000 CR4: 0000000000750ee0 PKRU: 55555554 note: CPU 7/KVM[2675] exited with irqs disabled It seems to appear randomly, so bisecting it would probably be difficult. Also, as far as I can tell it seems to be a recent regression (i.e. it was introduced in one of the 6.3.y releases).