On Wed, Jul 13, 2022 at 12:49 PM Jinpu Wang <jinpu.wang@xxxxxxxxx> wrote: > > Hi, all, > > When I test with 5.10.131-rc1 with kvm-uint-tests on Intel Broadwell > and Skylake server, it panic also immediately with following call > trace: > > [ 1867.769328] APIC base relocation is unsupported by KVM > [ 1895.977424] kvm: emulating exchange as write > [ 1895.979316] int3: 0000 [#1] SMP > [ 1895.979317] CPU: 40 PID: 14811 Comm: qemu-6.1 Kdump: loaded > Tainted: G O 5.10.131-pserver > #5.10.131-1+feature+linux+5.10.y+20220712.1850+30f4172c~deb11 > [ 1895.979317] Hardware name: Supermicro SBI-7228R-T2F2/B10DRT-IBF2, > BIOS 3.0a 03/05/2018 > [ 1895.979318] RIP: 0010:xaddw_ax_dx+0x9/0x10 [kvm] > [ 1895.979318] Code: 00 0f bb d0 c3 cc cc cc cc 48 0f bb d0 c3 cc cc > cc cc 0f 1f 80 00 00 00 00 0f c0 d0 c3 cc cc cc cc 66 0f c1 d0 c3 cc > cc cc cc <0f> 1f 80 00 00 00 00 0f c1 d0 c3 cc cc cc cc 48 0f c1 d0 c3 > cc cc > [ 1895.979319] RSP: 0018:ffffab6e63c6fd30 EFLAGS: 00000202 > [ 1895.979320] RAX: 0000000089abcdef RBX: 0000000000000001 RCX: 0000000000000000 > [ 1895.979321] RDX: 0000000076543210 RSI: ffffffffc0f3e4a0 RDI: 0000000000000200 > [ 1895.979321] RBP: ffff997c29c214e0 R08: ffff997c29c214e0 R09: 0000000000000002 > [ 1895.979321] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffffc0f73540 > [ 1895.979322] R13: 0000000000000000 R14: ffff997c29c214e0 R15: 0000000000000000 > [ 1895.979322] FS: 00007fc44a5a3700(0000) GS:ffff999a7fc80000(0000) > knlGS:0000000000000000 > [ 1895.979322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 1895.979323] CR2: 0000000000000000 CR3: 000000012bf16004 CR4: 00000000003726e0 > [ 1895.979324] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 1895.979324] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 1895.979325] Call Trace: > [ 1895.979325] ? fastop+0x59/0xa0 [kvm] > [ 1895.979326] ? x86_emulate_insn+0x73a/0xe00 [kvm] > [ 1895.979326] ? x86_emulate_instruction+0x2d0/0x750 [kvm] > [ 1895.979326] ? vmx_vcpu_load+0x21/0x70 [kvm_intel] > [ 1895.979327] ? complete_emulated_mmio+0x236/0x310 [kvm] > [ 1895.979327] ? kvm_arch_vcpu_ioctl_run+0x1744/0x1920 [kvm] > [ 1895.979327] ? kvm_vcpu_ioctl+0x211/0x5a0 [kvm] > [ 1895.979328] ? __fget_files+0x79/0xb0 > [ 1895.979328] ? __fget_files+0x79/0xb0 > [ 1895.979328] ? __x64_sys_ioctl+0x8b/0xc0 > [ 1895.979329] ? do_syscall_64+0x33/0x40 > [ 1895.979329] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 > [ 1895.979329] Modules linked in: nfnetlink_cttimeout nft_nat > nft_counter nft_chain_nat nft_meta_bridge bridge openvswitch nsh > nf_conncount nf_nat dummy nf_log_ipv6 nf_log_ipv4 nf_log_common > nft_log nft_limit rnbd_client(O) intel_rapl_msr rtrs_client(O) > intel_rapl_common rtrs_core(O) ib_ipoib rdma_ucm rdma_cm iw_cm ib_cm > ib_umad sb_edac x86_pkg_temp_thermal coretemp kvm_intel mlx4_ib nft_ct > kvm nf_conntrack ib_uverbs nf_defrag_ipv6 ib_core nf_defrag_ipv4 > irqbypass crc32_pclmul aesni_intel sd_mod libaes t10_pi crypto_simd > crc_t10dif nf_tables crct10dif_generic cryptd glue_helper > crct10dif_pclmul crct10dif_common vhost_net sg rapl intel_cstate > nfnetlink tun(O) ethoip6_pmtud(O) vhost vhost_iotlb ahci tap iTCO_wdt > libahci input_leds mei_me libata iTCO_vendor_support mlx4_core ioatdma > scsi_mod led_class watchdog evdev acpi_ipmi mei ipmi_si 8021q garp stp > mrp llc ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad button > fuse ip_tables x_tables autofs4 loop raid10 raid456 async_raid6_recov > [ 1895.979349] async_memcpy async_pq async_xor async_tx xor raid6_pq > libcrc32c raid1 raid0 linear md_mod crc32c_intel igb i2c_i801 > i2c_algo_bit i2c_smbus xhci_pci dca lpc_ich ptp i2c_core mfd_core > pps_core xhci_hcd > > Is this bug known, any hint how to fix it? I did more tests on different Servers, so far all the machine checked(Skylake/Icelake/Haswell/Broadwell/EPYC) crash immediately except AMD Opteron. kvm-unit-tests succeeded without regression. > Thanks! > Jinpu Wang @ IONOS
