https://bugzilla.kernel.org/show_bug.cgi?id=209253 Martin (kdev@xxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kdev@xxxxxxxxx --- Comment #2 from Martin (kdev@xxxxxxxxx) --- I am having problems possibly related to Clement's, and likely related to Ian's. I am running KVM on a dual Nvidia GPU machine, passing one GPU through to the KVM guest (Ubuntu 20.04.1). The setup ran stable for quite a while on Fedora 31 (5.7.15-100). After upgrading to Fedora 32 (5.8.13), the system tends to run well for a few hours after rebooting, and then produces oopses (below). After the oops, VirtIO drives, VirtIO network cards, and PCIe passthrough tend to hang indefinitely within minutes of rebooting the guest, usually making the guest inoperable (unless only non-VirtIO devices and no GPU passthrough are used). Rebooting the host makes things work again for a few hours until the next oops happens. I am on 5.8.14 now with the same problem. Oops 1 (I saw this twice, once on 5.8.13-200 and once on 5.8.14-200): WARNING: CPU: 28 PID: 17651 at fs/eventfd.c:74 eventfd_signal+0x88/0xa0 Modules linked in: vhost_net vhost tap vhost_iotlb v4l2loopback(OE) xt_nat xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nft_objref nf_conntrack_tftp tun bridge stp llc evdi(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) 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_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc ucsi_ccg typec_ucsi nvidia_drm(POE) typec nvidia_modeset(POE) snd_hda_codec_realtek nvidia_uvm(OE) snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi btusb edac_mce_amd btrtl btbcm snd_hda_intel uvcvideo iwlmvm snd_intel_dspcfg kvm_amd btintel snd_usb_audio snd_hda_codec videobuf2_vmalloc videobuf2_memops snd_usbmidi_lib mac80211 nvidia(POE) kvm bluetooth snd_hda_core videobuf2_v4l2 snd_rawmidi snd_hwdep videobuf2_common libarc4 snd_seq iwlwifi videodev joydev rapl snd_seq_device ecdh_generic wmi_bmof pcspkr cfg80211 mc ecc snd_pcm drm_kms_helper snd_timer sp5100_tco k10temp snd i2c_piix4 rfkill soundcore cec i2c_nvidia_gpu gpio_amdpt gpio_generic acpi_cpufreq drm ip_tables dm_crypt hid_lenovo mxm_wmi crct10dif_pclmul crc32_pclmul crc32c_intel nvme ghash_clmulni_intel nvme_core igb wacom ccp uas dca usb_storage i2c_algo_bit wmi pinctrl_amd vfio_pci irqbypass vfio_virqfd vfio_iommu_type1 vfio fuse CPU: 28 PID: 17651 Comm: CPU 5/KVM Tainted: P OE 5.8.13-200.fc32.x86_64 #1 Hardware name: Gigabyte Technology Co., Ltd. X399 DESIGNARE EX/X399 DESIGNARE EX-CF, BIOS F12 12/11/2019 RIP: 0010:eventfd_signal+0x88/0xa0 Code: 03 00 00 00 4c 89 f7 e8 26 16 db ff 65 ff 0d 3f f3 ca 4b 4c 89 ee 4c 89 f7 e8 34 8e 7f 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 <0f> 0b 45 31 e4 5b 5d 4c 89 e0 41 5c 41 5d 41 5e c3 0f 1f 80 00 00 RSP: 0018:ffffab10c8db7bb0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff9a71e16b8000 RCX: 0000000000000004 RDX: 00000000c8088704 RSI: 0000000000000001 RDI: ffff9a8335656580 RBP: ffffab10c8db7c18 R08: ffff9a72f7d120a0 R09: 00000000c8088708 R10: 0000000000000000 R11: 0000000000000014 R12: 0000000000000001 R13: ffff9a72a3153448 R14: ffff9a72f7d120a0 R15: ffff9a72a3153448 FS: 0000000000000000(0000) GS:ffff9a7e7f280000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64e403f024 CR3: 000000041b5f4000 CR4: 00000000003406e0 Call Trace: ioeventfd_write+0x51/0x80 [kvm] __kvm_io_bus_write+0x88/0xb0 [kvm] kvm_io_bus_write+0x43/0x60 [kvm] write_mmio+0x70/0xf0 [kvm] emulator_read_write_onepage+0x11e/0x330 [kvm] emulator_read_write+0xca/0x180 [kvm] segmented_write.isra.0+0x4a/0x60 [kvm] x86_emulate_insn+0x850/0xe60 [kvm] x86_emulate_instruction+0x2c7/0x780 [kvm] ? kvm_set_cr8+0x1e/0x40 [kvm] kvm_arch_vcpu_ioctl_run+0xeb9/0x1770 [kvm] ? x86_pmu_enable+0x106/0x2f0 ? __switch_to_xtra+0x495/0x500 kvm_vcpu_ioctl+0x209/0x590 [kvm] ksys_ioctl+0x82/0xc0 __x64_sys_ioctl+0x16/0x20 do_syscall_64+0x4d/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f5f6a84f3bb Code: 0f 1e fa 48 8b 05 dd aa 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ad aa 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007f5f527fb668 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000055c459b6f1f0 RCX: 00007f5f6a84f3bb RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000022 RBP: 00007f5f6bcca000 R08: 000055c45750abf0 R09: 000000003b9aca00 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f5f6bccb004 R14: 0000000000000000 R15: 000055c4579a4a00 Oops 2 (saw this once on 5.8.14-200): WARNING: CPU: 24 PID: 0 at fs/eventfd.c:74 eventfd_signal+0x88/0xa0 Modules linked in: v4l2loopback(OE) nfnetlink_queue nfnetlink_log vhost_net vhost tap vhost_iotlb xt_nat xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nft_objref nf_conntrack_tftp tun bridge stp llc vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) 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_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc nvidia_drm(POE) nvidia_modeset(POE) iwlmvm nvidia_uvm(OE) snd_hda_codec_realtek ucsi_ccg typec_ucsi mac80211 typec edac_mce_amd snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo btusb btrtl btbcm nvidia(POE) snd_hda_intel videobuf2_vmalloc libarc4 kvm_amd btintel videobuf2_memops snd_intel_dspcfg snd_hda_codec videobuf2_v4l2 kvm bluetooth videobuf2_common snd_usb_audio iwlwifi snd_hda_core videodev snd_usbmidi_lib snd_hwdep snd_seq snd_rawmidi joydev rapl snd_seq_device ecdh_generic mc pcspkr wmi_bmof ecc cfg80211 snd_pcm drm_kms_helper snd_timer snd sp5100_tco i2c_piix4 k10temp rfkill soundcore cec i2c_nvidia_gpu gpio_amdpt gpio_generic acpi_cpufreq drm ip_tables dm_crypt mxm_wmi crct10dif_pclmul crc32_pclmul crc32c_intel nvme ghash_clmulni_intel igb nvme_core wacom uas dca hid_lenovo ccp usb_storage i2c_algo_bit wmi pinctrl_amd vfio_pci irqbypass vfio_virqfd vfio_iommu_type1 vfio fuse CPU: 24 PID: 0 Comm: swapper/24 Tainted: P OE 5.8.14-200.fc32.x86_64 #1 Hardware name: Gigabyte Technology Co., Ltd. X399 DESIGNARE EX/X399 DESIGNARE EX-CF, BIOS F12 12/11/2019 RIP: 0010:eventfd_signal+0x88/0xa0 Code: 03 00 00 00 4c 89 f7 e8 a6 14 db ff 65 ff 0d bf f1 ca 78 4c 89 ee 4c 89 f7 e8 b4 9c 7f 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 <0f> 0b 45 31 e4 5b 5d 4c 89 e0 41 5c 41 5d 41 5e c3 0f 1f 80 00 00 RSP: 0018:ffffb5e2c6d2cf38 EFLAGS: 00010002 RAX: 0000000000000001 RBX: ffff894a2a1f1480 RCX: 000000000000001f RDX: ffff89423920ce00 RSI: 0000000000000001 RDI: ffff894929afc580 RBP: ffff89423920cea4 R08: ffffb5e2c6d2cff8 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000000a1 R13: 0000000000000000 R14: ffffb5e2c6d2cfb4 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff89423f180000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ae44aa8990 CR3: 0000000797204000 CR4: 00000000003406e0 Call Trace: <IRQ> vfio_msihandler+0x12/0x20 [vfio_pci] __handle_irq_event_percpu+0x42/0x180 handle_irq_event+0x47/0x8a handle_edge_irq+0x87/0x220 asm_call_irq_on_stack+0x12/0x20 </IRQ> common_interrupt+0xb2/0x140 asm_common_interrupt+0x1e/0x40 RIP: 0010:cpuidle_enter_state+0xb6/0x3f0 Code: 90 a5 6b 78 e8 5b be 7b ff 49 89 c7 0f 1f 44 00 00 31 ff e8 2c d7 7b ff 80 7c 24 0f 00 0f 85 d4 01 00 00 fb 66 0f 1f 44 00 00 <45> 85 e4 0f 88 e0 01 00 00 49 63 d4 4c 2b 7c 24 10 48 8d 04 52 48 RSP: 0018:ffffb5e2c0337e88 EFLAGS: 00000246 RAX: ffff89423f1aa2c0 RBX: ffff89423366e400 RCX: 000000000000001f RDX: 0000000000000000 RSI: 000000002abf3055 RDI: 0000000000000000 RBP: ffffffff88b78940 R08: 00000a86556fd237 R09: 0000000000000018 R10: 0000000000002358 R11: 0000000000000781 R12: 0000000000000002 R13: ffff89423366e400 R14: 0000000000000002 R15: 00000a86556fd237 ? cpuidle_enter_state+0xa4/0x3f0 cpuidle_enter+0x29/0x40 do_idle+0x1d5/0x2a0 cpu_startup_entry+0x19/0x20 start_secondary+0x144/0x170 secondary_startup_64+0xb6/0xc0 -- You are receiving this mail because: You are watching the assignee of the bug.
