https://bugzilla.kernel.org/show_bug.cgi?id=76191 Bug ID: 76191 Summary: vt-d intel IOMMU - "jump label: negative count!" Product: Virtualization Version: unspecified Kernel Version: Linux venus 3.12-1-amd64 #1 SMP Debian 3.12.9-1 (2014-02-01) x86_64 GNU/Linux Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: dev@xxxxxxxxxxxxxx Regression: No Hi, Trying to passthough an intel I350 ethernet port. gives me this error. Unfortunately this error doesn't appear to be indexed on search engines (unless I'm mistaken - forgive me). So I'll post it here. kvm works fine otherwise. I'm assuming this relatively old machine would have good support. Thanks. Machine: Hardware name: Dell Inc. Precision WorkStation T5500 /0D883F, BIOS A16 05/28/2013 Commands: echo "8086 1521" > /sys/bus/pci/drivers/pci-stub/new_id echo 0000:04:00.0 > /sys/bus/pci/devices/0000:04:00.0/driver/unbind echo 0000:04:00.0 > /sys/bus/pci/drivers/pci-stub/bind qemu-system-x86_64 -enable-kvm -device pci-assign,host=04:00.0 /scratch/base.raw Trace: May 14 22:48:00 venus kernel: [ 321.338524] ------------[ cut here ]------------ May 14 22:48:00 venus kernel: [ 321.338534] WARNING: CPU: 7 PID: 6248 at /build/linux-lq6CKI/linux-3.12.9/kernel/jump_label.c:81 kvm_free_lapic+0x5c/0x90 [kvm]() May 14 22:48:00 venus kernel: [ 321.338535] jump label: negative count! May 14 22:48:00 venus kernel: [ 321.338536] Modules linked in: pci_stub bridge stp llc tun xt_LOG xt_limit xt_multiport xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables fuse ppdev lp loop xts gf128mul dm_crypt arc4 snd_hda_codec_hdmi snd_hda_codec_analog zfs(PO) zunicode(PO) zavl(PO) zcommon(PO) znvpair(PO) spl(O) ath9k_htc ath9k_common ath9k_hw ath mac80211 nvidia(PO) usblp iTCO_wdt dell_wmi iTCO_vendor_support sparse_keymap dcdbas kvm_intel kvm snd_hda_intel cfg80211 snd_hda_codec coretemp rfkill snd_hwdep snd_pcm pcspkr evdev snd_page_alloc snd_seq snd_seq_device snd_timer parport_pc i2c_i801 lpc_ich mfd_core wmi parport shpchp button snd acpi_cpufreq processor soundcore thermal_sys i7core_edac edac_core ext4 crc16 mbcache jbd2 dm_mod hid_logitech_dj usbhid hid usb_storage sd_mod sg crct10dif_generic sr_mod crc_t10dif crct10dif_common cdrom crc32c_intel mptsas ahci mptscsih libahci mptbase libata scsi_transport_sas uhci_hcd scsi_mod ehci_pci tg3 ehci_hcd libphy igb usbcore ptp usb_common pps_core i2c_algo_bit i2c_core dca May 14 22:48:00 venus kernel: [ 321.338602] CPU: 7 PID: 6248 Comm: qemu-system-x86 Tainted: P W IO 3.12-1-amd64 #1 Debian 3.12.9-1 May 14 22:48:00 venus kernel: [ 321.338604] Hardware name: Dell Inc. Precision WorkStation T5500 /0D883F, BIOS A16 05/28/2013 May 14 22:48:00 venus kernel: [ 321.338606] 0000000000000009 ffffffff8148be76 ffff881158d35d50 ffffffff8105b582 May 14 22:48:00 venus kernel: [ 321.338610] ffff8811b2bb8080 ffff881158d35da0 ffff88115da58130 ffff88115da58140 May 14 22:48:00 venus kernel: [ 321.338613] ffff8811d5058500 ffffffff8105b5e7 ffffffff8170387f ffff881100000018 May 14 22:48:00 venus kernel: [ 321.338617] Call Trace: May 14 22:48:00 venus kernel: [ 321.338621] [<ffffffff8148be76>] ? dump_stack+0x41/0x51 May 14 22:48:00 venus kernel: [ 321.338625] [<ffffffff8105b582>] ? warn_slowpath_common+0x72/0x90 May 14 22:48:00 venus kernel: [ 321.338629] [<ffffffff8105b5e7>] ? warn_slowpath_fmt+0x47/0x50 May 14 22:48:00 venus kernel: [ 321.338632] [<ffffffff8107e92b>] ? hrtimer_try_to_cancel+0x3b/0xd0 May 14 22:48:00 venus kernel: [ 321.338644] [<ffffffffa065131c>] ? kvm_free_lapic+0x5c/0x90 [kvm] May 14 22:48:00 venus kernel: [ 321.338656] [<ffffffffa063af1e>] ? kvm_arch_vcpu_uninit+0x1e/0x80 [kvm] May 14 22:48:00 venus kernel: [ 321.338664] [<ffffffffa06220e8>] ? kvm_vcpu_uninit+0x18/0x30 [kvm] May 14 22:48:00 venus kernel: [ 321.338670] [<ffffffffa0c5bd4e>] ? vmx_free_vcpu+0x3e/0x60 [kvm_intel] May 14 22:48:00 venus kernel: [ 321.338681] [<ffffffffa063b12b>] ? kvm_arch_destroy_vm+0xeb/0x1e0 [kvm] May 14 22:48:00 venus kernel: [ 321.338690] [<ffffffffa0624f5b>] ? kvm_put_kvm+0xfb/0x1b0 [kvm] May 14 22:48:00 venus kernel: [ 321.338699] [<ffffffffa062503f>] ? kvm_vcpu_release+0xf/0x20 [kvm] May 14 22:48:00 venus kernel: [ 321.338702] [<ffffffff81174b7a>] ? __fput+0xca/0x220 May 14 22:48:00 venus kernel: [ 321.338706] [<ffffffff81078924>] ? task_work_run+0xb4/0xd0 May 14 22:48:00 venus kernel: [ 321.338709] [<ffffffff8105d8d3>] ? do_exit+0x2c3/0xa50 May 14 22:48:00 venus kernel: [ 321.338712] [<ffffffff81069ea5>] ? signal_wake_up_state+0x15/0x30 May 14 22:48:00 venus kernel: [ 321.338716] [<ffffffff8105e0c4>] ? do_group_exit+0x34/0xa0 May 14 22:48:00 venus kernel: [ 321.338719] [<ffffffff8105e13b>] ? SyS_exit_group+0xb/0x10 May 14 22:48:00 venus kernel: [ 321.338722] [<ffffffff81498fb9>] ? system_call_fastpath+0x16/0x1b May 14 22:48:00 venus kernel: [ 321.338724] ---[ end trace a1cbbecc08565580 ]--- -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
