Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757590Ab0KAM5q (ORCPT ); Mon, 1 Nov 2010 08:57:46 -0400 Received: from fmmailgate02.web.de ([217.72.192.227]:54455 "EHLO fmmailgate02.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756039Ab0KAM5o (ORCPT ); Mon, 1 Nov 2010 08:57:44 -0400 Message-ID: <4CCEB946.7070103@web.de> Date: Mon, 01 Nov 2010 13:57:42 +0100 From: Jan Kiszka User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: kvm CC: Sheng Yang , Joerg Roedel , Linux Kernel Mailing List Subject: Re: Crash on kvm_iommu_map_pages References: <4CCEB7CF.8030207@web.de> In-Reply-To: <4CCEB7CF.8030207@web.de> X-Enigmail-Version: 1.1.2 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig49C5F25219E860972EEE22CC" X-Provags-ID: V01U2FsdGVkX1/Q8PTMselRYmmxhbAJTu02f/0D2T0Dkt93w3wE N4JFTfBbPfSgQ75dBvpN5DeHGth3W8dLRdIV0bzQUdLLwMsKwE r4IFC+ahU= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5279 Lines: 117 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig49C5F25219E860972EEE22CC Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable [ Forgot to CC LKML - maybe it's not KVM-specific. BTW, is anyone actually using current KVM device assigment on Intel? I'm starting to believe that can only very few lucky people... ] Am 01.11.2010 13:51, Jan Kiszka wrote: > Hi again, >=20 > OK, I swapped those two lines in intel_iommu_attach_device [1], fixed > another warning in the wbinvd emulation, but now I'm about to give up. > This is freaky MMU stuff: >=20 >=20 > general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC > last sysfs file: /sys/devices/pci0000:00/0000:00:1a.0/device > CPU 1=20 > Modules linked in: kvm_intel kvm bluetooth snd_pcm_oss snd_mixer_oss sn= d_seq snd_seq_device edd ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6= table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6ta= ble_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defr= ag_ipv4 ip_tables ip6table_filter ip6_tables x_tables ipv6 fuse loop mac8= 0211 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec= ath9k_common ath9k_hw snd_hwdep snd_pcm snd_timer snd ath pcmcia cfg8021= 1 sdhci_pci tpm_infineon sdhci yenta_socket firewire_ohci tpm_tis mmc_cor= e soundcore e1000e sg pcmcia_rsrc tpm firewire_core iTCO_wdt video snd_pa= ge_alloc pcmcia_core i2c_i801 rfkill tpm_bios intel_agp output fujitsu_la= ptop iTCO_vendor_support i2c_core serio_raw pcspkr led_class joydev crc_i= tu_t button battery intel_gtt ac ext4 mbcache jbd2 crc16 sha256_generic a= es_x86_64 aes_generic cbc dm_crypt linear sd_mod crc_t10dif dm_snapshot d= m_mod fan processor ahci libahci ata_gene ri > c liba > ta scsi_mod thermal thermal_sys hwmon > Nov 1 13:19:11 mchn199C kernel: > Pid: 2248, comm: qemu-system-x86 Not tainted 2.6.36+ #12 FJNB211W/CELSI= US H700 > RIP: 0010:[] [] pfn_to_dma_pte+0x7= 3/0x190 > RSP: 0018:ffff8800bd4bdb68 EFLAGS: 00010202 > RAX: ffff1000bd4fe000 RBX: ffff1000bd4fec00 RCX: 0000000000000009 > RDX: 0000000000000180 RSI: ffff88012a940938 RDI: 0000000000000202 > RBP: ffff8800bd4bdba8 R08: ffffea00025ac2a0 R09: 0000000000000004 > R10: 0000000000000001 R11: 0000000000000000 R12: ffff880128dfee00 > R13: 0000000000000002 R14: 00000000000f0000 R15: 0000000000000009 > FS: 00007f4990d33710(0000) GS:ffff8800be680000(0000) knlGS:00000000000= 00000 > CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 > CR2: 0000000001408000 CR3: 00000000bd7db000 CR4: 00000000000026e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process qemu-system-x86 (pid: 2248, threadinfo ffff8800bd4bc000, task f= fff88012a940000) > Stack: > ffff8800bd4bdb88 ffff8800ac378000 00000000000000d2 00000000000f0000 > <0> ffff8800bd4bdce8 ffff8800ac2fc000 0000000000000003 00000000000f0001= > <0> ffff8800bd4bdbb8 ffffffff8121dfbe ffff8800bd4bdbc8 ffffffff812a9573= > Call Trace: > [] intel_iommu_iova_to_phys+0x15/0x2a > [] iommu_iova_to_phys+0x13/0x15 > [] kvm_iommu_map_pages+0x77/0x194 [kvm] > [] ? __vmalloc_node+0x86/0x9b > [] __kvm_set_memory_region+0x4e5/0x787 [kvm] > [] ? mark_held_locks+0x50/0x72 > [] ? mutex_lock_nested+0x325/0x34d > [] kvm_set_memory_region+0x37/0x50 [kvm] > [] kvm_vm_ioctl_set_memory_region+0x18/0x1a [kvm] > [] kvm_vm_ioctl+0x22d/0x3b1 [kvm] > [] ? fget_light+0x17b/0x31f > [] do_vfs_ioctl+0x4c6/0x507 > [] ? fget_light+0x303/0x31f > [] ? fget_light+0x17b/0x31f > [] ? retint_swapgs+0x13/0x1b > [] sys_ioctl+0x56/0x7c > [] system_call_fastpath+0x16/0x1b > Code: c7 31 db 47 8d 3c ff e9 1d 01 00 00 0f 0b 4c 89 f2 44 88 f9 48 d3= ea 81 e2 ff 01 00 00 41 83 fd 01 48 8d 1c d0 0f 84 0b 01 00 00 03 0= 3 0f 85 d8 00 00 00 41 8b 44 24 04 85 c0 79 08 65 8b 04=20 > RIP [] pfn_to_dma_pte+0x73/0x190 > RSP >=20 >=20 > Can anyone parse this? Is it Intel-specific or a generic issue? The > kernel is current kvm.git + unrelated patch + [1]. >=20 > Jan >=20 > [1] http://thread.gmane.org/gmane.comp.emulators.kvm.devel/61923 >=20 --------------enig49C5F25219E860972EEE22CC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAkzOuUYACgkQitSsb3rl5xTZ8QCcDJgsthCIi+5G9+WIvoGSxNCZ jRQAnjpvtESbnFEgW+UGAR5TNZAkA3Ou =3r5H -----END PGP SIGNATURE----- --------------enig49C5F25219E860972EEE22CC-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/