Xen project Mailing List

Re: [Xen-devel] Resend: Linux 4.11-rc7: kernel BUG at drivers/xen/events/events_base.c:1221

To: Juergen Gross <jgross@xxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

From: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>

Date: Tue, 25 Apr 2017 08:57:56 +0200

Delivery-date: Tue, 25 Apr 2017 06:58:06 +0000

List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 25/04/17 08:42, Juergen Gross wrote: > On 25/04/17 08:35, Sander Eikelenboom wrote: >> On 25/04/17 08:14, Juergen Gross wrote: >>> On 24/04/17 22:15, Boris Ostrovsky wrote: >>>> On 04/24/2017 12:10 PM, Sander Eikelenboom wrote: >>>>> On 24/04/17 17:49, Boris Ostrovsky wrote: >>>>>> On 04/24/2017 10:20 AM, Sander Eikelenboom wrote: >>>>>>> Hi Boris, >>>>>>> >>>>>>> Nope, not that i am aware of. >>>>>> If you can keep console while running this, can you add these changes >>>>>> and see if we ever unbind the work vector (you can even add dump_stack() >>>>>> in __unbind_from_irq() for good measure)? (I added HHH for easy grepping) >>>>>> >>>>>> Also do 'grep -i work /proc/interrupts' so that we know which IRQ the >>>>>> work interrupt is. >>>>>> >>>>>> -boris >>>>> Hmmm i f*cked up and accidently compiled a tree with "for linus 4.12" >>>>> pulled in and ran that instead of the vanilla 4.11-rc7 (while not naming >>>>> it "xen-next" as i normally do. >>>>> So 4.11-rc7 is most probably fine, sorry for that noise. >>>>> >>>>> Since your patch doesn't apply the smp part is changed. Seems the >>>>> problem somewhere lies in there (Vitaly's patches, general x86 stuff >>>>> being pulled in to base that on). I can see if i can adapt the patch >>>>> to for linus 4.12 and retest, instead of waiting for it to be pulled in >>>>> into Linus his tree in the next merge window. >>>> >>>> This is trivially reproduced on 4.12 branch with >>>> >>>> diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c >>>> index 84106f9..065728f 100644 >>>> --- a/drivers/xen/sys-hypervisor.c >>>> +++ b/drivers/xen/sys-hypervisor.c >>>> @@ -148,7 +148,7 @@ static int __init xen_sysfs_uuid_init(void) >>>> } >>>> >>>> /* xen compilation attributes */ >>>> - >>>> +void arch_irq_work_raise(void ); >>>> static ssize_t compiler_show(struct hyp_sysfs_attr *attr, char *buffer) >>>> { >>>> int ret = -ENOMEM; >>>> @@ -161,7 +161,7 @@ static ssize_t compiler_show(struct hyp_sysfs_attr >>>> *attr, char *buffer) >>>> ret = sprintf(buffer, "%s\n", info->compiler); >>>> kfree(info); >>>> } >>>> - >>>> + arch_irq_work_raise(); >>>> return ret; >>>> } >>>> >>>> >>>> and then (if you manage to boot): >>>> >>>> [root@vm-0238 ~]# grep proc /proc/cpuinfo >>>> processor : 0 >>>> [root@vm-0238 ~]# >>>> [root@vm-0238 ~]# cat /sys/hypervisor/compilation/compiler >>>> [ 502.160472] ------------[ cut here ]------------ >>>> [ 502.160491] kernel BUG at drivers/xen/events/events_base.c:1221! >>>> >>>> >>>> >>>> and the fix is >>>> >>>> diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c >>>> index c0e3b96..aae3253 100644 >>>> --- a/arch/x86/xen/smp_pv.c >>>> +++ b/arch/x86/xen/smp_pv.c >>>> @@ -249,7 +249,7 @@ static void __init xen_pv_smp_prepare_cpus(unsigned >>>> int max_cpus) >>>> >>>> xen_pmu_init(0); >>>> >>>> - if (xen_smp_intr_init(0)) >>>> + if (xen_smp_intr_init(0) || xen_smp_intr_init_pv(0)) >>>> BUG(); >>>> >>>> if (!alloc_cpumask_var(&xen_cpu_initialized_map, GFP_KERNEL)) >>> >>> Indeed. Can you please send a proper patch with your S-o-b? >>> >>> >>> Juergen >>> >> >> It now at least blows up very very early and reliably ;) >> So not there yet :) >> >> -- >> Sander >> >> >> \ \/ /___ _ __ | || | / _ \ _ _ _ __ ___| |_ __ _| |__ | | ___ >> \ // _ \ '_ \ | || || (_) |__| | | | '_ \/ __| __/ _` | '_ \| |/ _ \ >> / \ __/ | | | |__ _\__, |__| |_| | | | \__ \ || (_| | |_) | | __/ >> /_/\_\___|_| |_| |_|(_)/_/ \__,_|_| |_|___/\__\__,_|_.__/|_|\___| >> >> (XEN) Xen version 4.9-unstable (root@xxxxxxxxxx) (gcc-4.9.real (Debian >> 4.9.2-10) 4.9.2) debug=y Mon Apr 10 20:03:03 CEST 2017 >> (XEN) Latest ChangeSet: Mon Apr 10 19:56:22 2017 +0200 git:7497f90-dirty >> (XEN) Bootloader: GRUB 2.02~beta2-22+deb8u1 >> (XEN) Command line: dom0_mem=2048M,max:2048M loglvl=all loglvl_guest=all >> console_timestamps=datems vga=gfx-1280x1024x32 no-cpuidle cpufreq=xen >> com1=38400,8n1 console=vga,com1 ivrs_ioapic[6]=00:14.0 >> iommu=on,verbose,debug,amd-iommu-debug conring_size=128k ucode=-1 >> sched=credit2 >> (XEN) Xen image load base address: 0 >> (XEN) Video information: >> (XEN) VGA is graphics mode 1280x1024, 32 bpp >> (XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds >> (XEN) Disc information: >> (XEN) Found 4 MBR signatures >> (XEN) Found 4 EDD information structures >> (XEN) Xen-e820 RAM map: >> (XEN) 0000000000000000 - 0000000000096400 (usable) >> (XEN) 0000000000096400 - 00000000000a0000 (reserved) >> (XEN) 00000000000e4000 - 0000000000100000 (reserved) >> (XEN) 0000000000100000 - 00000000aff90000 (usable) >> (XEN) 00000000aff90000 - 00000000aff9e000 (ACPI data) >> (XEN) 00000000aff9e000 - 00000000affe0000 (ACPI NVS) >> (XEN) 00000000affe0000 - 00000000b0000000 (reserved) >> (XEN) 00000000ffe00000 - 0000000100000000 (reserved) >> (XEN) 0000000100000000 - 0000000550000000 (usable) >> (XEN) New Xen image base address: 0xaf800000 >> (XEN) ACPI: RSDP 000FB100, 0014 (r0 ACPIAM) >> (XEN) ACPI: RSDT AFF90000, 0048 (r1 MSI OEMSLIC 20100913 MSFT 97) >> (XEN) ACPI: FACP AFF90200, 0084 (r1 7640MS A7640100 20100913 MSFT 97) >> (XEN) ACPI: DSDT AFF905E0, 9427 (r1 A7640 A7640100 100 INTL 20051117) >> (XEN) ACPI: FACS AFF9E000, 0040 >> (XEN) ACPI: APIC AFF90390, 0088 (r1 7640MS A7640100 20100913 MSFT 97) >> (XEN) ACPI: MCFG AFF90420, 003C (r1 7640MS OEMMCFG 20100913 MSFT 97) >> (XEN) ACPI: SLIC AFF90460, 0176 (r1 MSI OEMSLIC 20100913 MSFT 97) >> (XEN) ACPI: OEMB AFF9E040, 0072 (r1 7640MS A7640100 20100913 MSFT 97) >> (XEN) ACPI: SRAT AFF9A5E0, 0108 (r3 AMD FAM_F_10 2 AMD 1) >> (XEN) ACPI: HPET AFF9A6F0, 0038 (r1 7640MS OEMHPET 20100913 MSFT 97) >> (XEN) ACPI: IVRS AFF9A730, 0110 (r1 AMD RD890S 202031 AMD 0) >> (XEN) ACPI: SSDT AFF9A840, 0DA4 (r1 A M I POWERNOW 1 AMD 1) >> (XEN) System RAM: 20479MB (20970648kB) >> (XEN) SRAT: PXM 0 -> APIC 00 -> Node 0 >> (XEN) SRAT: PXM 0 -> APIC 01 -> Node 0 >> (XEN) SRAT: PXM 0 -> APIC 02 -> Node 0 >> (XEN) SRAT: PXM 0 -> APIC 03 -> Node 0 >> (XEN) SRAT: PXM 0 -> APIC 04 -> Node 0 >> (XEN) SRAT: PXM 0 -> APIC 05 -> Node 0 >> (XEN) SRAT: Node 0 PXM 0 0-a0000 >> (XEN) SRAT: Node 0 PXM 0 100000-b0000000 >> (XEN) SRAT: Node 0 PXM 0 100000000-550000000 >> (XEN) NUMA: Allocated memnodemap from 54c43f000 - 54c445000 >> (XEN) NUMA: Using 8 for the hash shift. >> (XEN) Domain heap initialised >> (XEN) Allocated console ring of 128 KiB. >> (XEN) vesafb: framebuffer at 0xd0000000, mapped to 0xffff82c000201000, using >> 6144k, total 16384k >> (XEN) vesafb: mode is 1280x1024x32, linelength=5120, font 8x16 >> (XEN) vesafb: Truecolor: size=0:8:8:8, shift=0:16:8:0 >> (XEN) CPU Vendor: AMD, Family 16 (0x10), Model 10 (0xa), Stepping 0 (raw >> 00100fa0) >> (XEN) found SMP MP-table at 000ff780 >> (XEN) DMI present. >> (XEN) Using APIC driver default >> (XEN) ACPI: PM-Timer IO Port: 0x808 (24 bits) >> (XEN) ACPI: SLEEP INFO: pm1x_cnt[1:804,1:0], pm1x_evt[1:800,1:0] >> (XEN) ACPI: wakeup_vec[aff9e00c], vec_size[20] >> (XEN) ACPI: Local APIC address 0xfee00000 >> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) >> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) >> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled) >> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled) >> (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x04] enabled) >> (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] enabled) >> (XEN) ACPI: IOAPIC (id[0x06] address[0xfec00000] gsi_base[0]) >> (XEN) IOAPIC[0]: apic_id 6, version 33, address 0xfec00000, GSI 0-23 >> (XEN) ACPI: IOAPIC (id[0x07] address[0xfec20000] gsi_base[24]) >> (XEN) IOAPIC[1]: apic_id 7, version 33, address 0xfec20000, GSI 24-55 >> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) >> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level) >> (XEN) ACPI: IRQ0 used by override. >> (XEN) ACPI: IRQ2 used by override. >> (XEN) ACPI: IRQ9 used by override. >> (XEN) Enabling APIC mode: Flat. Using 2 I/O APICs >> (XEN) ACPI: HPET id: 0x8300 base: 0xfed00000 >> (XEN) ERST table was not found >> (XEN) Using ACPI (MADT) for SMP configuration information >> (XEN) SMP: Allowing 6 CPUs (0 hotplug CPUs) >> (XEN) IRQ limits: 56 GSI, 1112 MSI/MSI-X >> (XEN) CPU0: AMD Fam10h machine check reporting enabled >> (XEN) Using scheduler: SMP Credit Scheduler rev2 (credit2) >> (XEN) Initializing Credit2 scheduler >> (XEN) load_precision_shift: 18 >> (XEN) load_window_shift: 30 >> (XEN) underload_balance_tolerance: 0 >> (XEN) overload_balance_tolerance: -3 >> (XEN) runqueues arrangement: socket >> (XEN) load tracking window length 1073741824 ns >> (XEN) Adding cpu 0 to runqueue 0 >> (XEN) First cpu on runqueue, activating >> (XEN) Platform timer is 14.318MHz HPET >> (XEN) Detected 3200.164 MHz processor. >> (XEN) Initing memory sharing. >> (XEN) alt table ffff82d080422ab8 -> ffff82d080424120 >> (XEN) PCI: MCFG configuration 0: base e0000000 segment 0000 buses 00 - ff >> (XEN) PCI: Not using MCFG for segment 0000 bus 00-ff >> (XEN) AMD-Vi: Found MSI capability block at 0x54 >> (XEN) AMD-Vi: IVRS Block: Found type 0x10 flags 0x3e len 0xe0 id 0x2 >> (XEN) AMD-Vi: Using IVHD type 0x10 >> (XEN) AMD-Vi: ACPI Table: >> (XEN) AMD-Vi: Signature IVRS >> (XEN) AMD-Vi: Length 0x110 >> (XEN) AMD-Vi: Revision 0x1 >> (XEN) AMD-Vi: CheckSum 0xe9 >> (XEN) AMD-Vi: OEM_Id AMD >> (XEN) AMD-Vi: OEM_Table_Id RD890S >> (XEN) AMD-Vi: OEM_Revision 0x202031 >> (XEN) AMD-Vi: Creator_Id AMD >> (XEN) AMD-Vi: Creator_Revision 0 >> (XEN) AMD-Vi: IVRS Block: type 0x10 flags 0x3e len 0xe0 id 0x2 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0 -> 0x2 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x10 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0xf00 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0xf00 -> 0xf01 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x18 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xe00 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x28 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xd00 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x30 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xc00 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x48 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xb00 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x50 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0xa00 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0xa00 -> 0xa07 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x58 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0x900 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0x900 -> 0x901 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x60 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x500 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x608 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x800 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x610 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x700 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x68 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x400 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x88 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0x90 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0x90 -> 0x92 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0x98 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0x98 -> 0x9a >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa0 flags 0xd7 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa2 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa3 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa4 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x43 id 0x300 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0x300 -> 0x3ff alias 0xa4 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa5 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa8 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0xa9 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x2 id 0x100 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x3 id 0xb0 flags 0 >> (XEN) AMD-Vi: Dev_Id Range: 0xb0 -> 0xb2 >> (XEN) AMD-Vi: IVHD Device Entry: type 0 id 0 flags 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x48 id 0 flags 0xd7 >> (XEN) AMD-Vi: IVHD Special: 0000:00:14.0 variety 0x2 handle 0 >> (XEN) AMD-Vi: IVHD Device Entry: type 0x48 id 0 flags 0 >> (XEN) AMD-Vi: IVHD Special: 0000:00:00.1 variety 0x1 handle 0x7 >> (XEN) AMD-Vi: Disabled HAP memory map sharing with IOMMU >> (XEN) AMD-Vi: IOMMU 0 Enabled. >> (XEN) I/O virtualisation enabled >> (XEN) - Dom0 mode: Relaxed >> (XEN) Interrupt remapping enabled >> (XEN) nr_sockets: 1 >> (XEN) ENABLING IO-APIC IRQs >> (XEN) -> Using new ACK method >> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1 >> (XEN) [2017-04-24 21:20:46.923] microcode: CPU0 updated from revision >> 0x10000bf to 0x10000dc >> (XEN) [2017-04-24 21:20:46.931] HVM: ASIDs enabled. >> (XEN) [2017-04-24 21:20:46.938] SVM: Supported advanced features: >> (XEN) [2017-04-24 21:20:46.946] - Nested Page Tables (NPT) >> (XEN) [2017-04-24 21:20:46.953] - Last Branch Record (LBR) Virtualisation >> (XEN) [2017-04-24 21:20:46.961] - Next-RIP Saved on #VMEXIT >> (XEN) [2017-04-24 21:20:46.969] - Pause-Intercept Filter >> (XEN) [2017-04-24 21:20:46.977] HVM: SVM enabled >> (XEN) [2017-04-24 21:20:46.984] HVM: Hardware Assisted Paging (HAP) detected >> (XEN) [2017-04-24 21:20:46.992] HVM: HAP page sizes: 4kB, 2MB, 1GB >> (XEN) [2017-04-24 21:20:47.020] Adding cpu 1 to runqueue 0 >> (XEN) [2017-04-24 21:20:47.028] microcode: CPU1 updated from revision >> 0x10000bf to 0x10000dc >> (XEN) [2017-04-24 21:20:47.057] Adding cpu 2 to runqueue 0 >> (XEN) [2017-04-24 21:20:47.064] microcode: CPU2 updated from revision >> 0x10000bf to 0x10000dc >> (XEN) [2017-04-24 21:20:47.085] Adding cpu 3 to runqueue 0 >> (XEN) [2017-04-24 21:20:47.093] microcode: CPU3 updated from revision >> 0x10000bf to 0x10000dc >> (XEN) [2017-04-24 21:20:47.121] Adding cpu 4 to runqueue 0 >> (XEN) [2017-04-24 21:20:47.129] microcode: CPU4 updated from revision >> 0x10000bf to 0x10000dc >> (XEN) [2017-04-24 21:20:47.158] Adding cpu 5 to runqueue 0 >> (XEN) [2017-04-24 21:20:47.166] Brought up 6 CPUs >> (XEN) [2017-04-24 21:20:47.174] microcode: CPU5 updated from revision >> 0x10000bf to 0x10000dc >> (XEN) [2017-04-24 21:20:47.187] build-id: >> 692df0a6bd7eb5c924588a6c78a5a3e76a9e30c6 >> (XEN) [2017-04-24 21:20:47.196] Running stub recovery selftests... >> (XEN) [2017-04-24 21:20:47.204] traps.c:3466: GPF (0000): ffff82d0bffff041 >> [ffff82d0bffff041] -> ffff82d08035bd2a >> (XEN) [2017-04-24 21:20:47.213] traps.c:813: Trap 12: ffff82d0bffff040 >> [ffff82d0bffff040] -> ffff82d08035bd2a >> (XEN) [2017-04-24 21:20:47.222] traps.c:1215: Trap 3: ffff82d0bffff041 >> [ffff82d0bffff041] -> ffff82d08035bd2a >> (XEN) [2017-04-24 21:20:47.251] ACPI sleep modes: S3 >> (XEN) [2017-04-24 21:20:47.260] VPMU: disabled >> (XEN) [2017-04-24 21:20:47.269] MCA: Use hw thresholding to adjust polling >> frequency >> (XEN) [2017-04-24 21:20:47.278] mcheck_poll: Machine check polling timer >> started. >> (XEN) [2017-04-24 21:20:47.287] Xenoprofile: Failed to setup IBS LVT offset, >> IBSCTL = 0xffffffff >> (XEN) [2017-04-24 21:20:47.296] Dom0 has maximum 632 PIRQs >> (XEN) [2017-04-24 21:20:47.305] NX (Execute Disable) protection active >> (XEN) [2017-04-24 21:20:47.314] *** LOADING DOMAIN 0 *** >> (XEN) [2017-04-24 21:20:47.505] ELF: phdr: paddr=0x1000000 memsz=0x1293000 >> (XEN) [2017-04-24 21:20:47.515] ELF: phdr: paddr=0x2400000 memsz=0x136000 >> (XEN) [2017-04-24 21:20:47.524] ELF: phdr: paddr=0x2536000 memsz=0x1ae98 >> (XEN) [2017-04-24 21:20:47.533] ELF: phdr: paddr=0x2551000 memsz=0x2d8000 >> (XEN) [2017-04-24 21:20:47.543] ELF: memory: 0x1000000 -> 0x2829000 >> (XEN) [2017-04-24 21:20:47.552] ELF: note: GUEST_OS = "linux" >> (XEN) [2017-04-24 21:20:47.561] ELF: note: GUEST_VERSION = "2.6" >> (XEN) [2017-04-24 21:20:47.571] ELF: note: XEN_VERSION = "xen-3.0" >> (XEN) [2017-04-24 21:20:47.580] ELF: note: VIRT_BASE = 0xffffffff80000000 >> (XEN) [2017-04-24 21:20:47.590] ELF: note: INIT_P2M = 0x8000000000 >> (XEN) [2017-04-24 21:20:47.599] ELF: note: ENTRY = 0xffffffff82551180 >> (XEN) [2017-04-24 21:20:47.609] ELF: note: HYPERCALL_PAGE = >> 0xffffffff81001000 >> (XEN) [2017-04-24 21:20:47.618] ELF: note: FEATURES = >> "!writable_page_tables|pae_pgdir_above_4gb" >> (XEN) [2017-04-24 21:20:47.628] ELF: note: SUPPORTED_FEATURES = 0x801 >> (XEN) [2017-04-24 21:20:47.638] ELF: note: PAE_MODE = "yes" >> (XEN) [2017-04-24 21:20:47.648] ELF: note: LOADER = "generic" >> (XEN) [2017-04-24 21:20:47.657] ELF: note: unknown (0xd) >> (XEN) [2017-04-24 21:20:47.667] ELF: note: SUSPEND_CANCEL = 0x1 >> (XEN) [2017-04-24 21:20:47.677] ELF: note: MOD_START_PFN = 0x1 >> (XEN) [2017-04-24 21:20:47.687] ELF: note: HV_START_LOW = 0xffff800000000000 >> (XEN) [2017-04-24 21:20:47.696] ELF: note: PADDR_OFFSET = 0 >> (XEN) [2017-04-24 21:20:47.706] ELF: note: PHYS32_ENTRY = 0x10002d0 >> (XEN) [2017-04-24 21:20:47.716] ELF: addresses: >> (XEN) [2017-04-24 21:20:47.726] virt_base = 0xffffffff80000000 >> (XEN) [2017-04-24 21:20:47.736] elf_paddr_offset = 0x0 >> (XEN) [2017-04-24 21:20:47.746] virt_offset = 0xffffffff80000000 >> (XEN) [2017-04-24 21:20:47.756] virt_kstart = 0xffffffff81000000 >> (XEN) [2017-04-24 21:20:47.767] virt_kend = 0xffffffff82829000 >> (XEN) [2017-04-24 21:20:47.777] virt_entry = 0xffffffff82551180 >> (XEN) [2017-04-24 21:20:47.788] p2m_base = 0x8000000000 >> (XEN) [2017-04-24 21:20:47.798] Xen kernel: 64-bit, lsb, compat32 >> (XEN) [2017-04-24 21:20:47.809] Dom0 kernel: 64-bit, PAE, lsb, paddr >> 0x1000000 -> 0x2829000 >> (XEN) [2017-04-24 21:20:47.820] PHYSICAL MEMORY ARRANGEMENT: >> (XEN) [2017-04-24 21:20:47.830] Dom0 alloc.: >> 0000000438000000->000000043c000000 (501685 pages to be allocated) >> (XEN) [2017-04-24 21:20:47.841] Init. ramdisk: >> 000000054e7b1000->000000054fffbc00 >> (XEN) [2017-04-24 21:20:47.852] VIRTUAL MEMORY ARRANGEMENT: >> (XEN) [2017-04-24 21:20:47.863] Loaded kernel: >> ffffffff81000000->ffffffff82829000 >> (XEN) [2017-04-24 21:20:47.874] Init. ramdisk: >> 0000000000000000->0000000000000000 >> (XEN) [2017-04-24 21:20:47.885] Phys-Mach map: >> 0000008000000000->0000008000400000 >> (XEN) [2017-04-24 21:20:47.895] Start info: >> ffffffff82829000->ffffffff828294b4 >> (XEN) [2017-04-24 21:20:47.906] Page tables: >> ffffffff8282a000->ffffffff82843000 >> (XEN) [2017-04-24 21:20:47.917] Boot stack: >> ffffffff82843000->ffffffff82844000 >> (XEN) [2017-04-24 21:20:47.928] TOTAL: >> ffffffff80000000->ffffffff82c00000 >> (XEN) [2017-04-24 21:20:47.939] ENTRY ADDRESS: ffffffff82551180 >> (XEN) [2017-04-24 21:20:47.950] Dom0 has maximum 6 VCPUs >> (XEN) [2017-04-24 21:20:47.961] ELF: phdr 0 at 0xffffffff81000000 -> >> 0xffffffff82293000 >> (XEN) [2017-04-24 21:20:47.979] ELF: phdr 1 at 0xffffffff82400000 -> >> 0xffffffff82536000 >> (XEN) [2017-04-24 21:20:47.990] ELF: phdr 2 at 0xffffffff82536000 -> >> 0xffffffff82550e98 >> (XEN) [2017-04-24 21:20:48.001] ELF: phdr 3 at 0xffffffff82551000 -> >> 0xffffffff82680000 >> (XEN) [2017-04-24 21:20:49.176] AMD-Vi: Setup I/O page table: device id = 0, >> type = 0x6, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.187] AMD-Vi: Setup I/O page table: device id = >> 0x2, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.199] AMD-Vi: Setup I/O page table: device id = >> 0x10, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.210] AMD-Vi: Setup I/O page table: device id = >> 0x18, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.222] AMD-Vi: Setup I/O page table: device id = >> 0x28, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.234] AMD-Vi: Setup I/O page table: device id = >> 0x30, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.245] AMD-Vi: Setup I/O page table: device id = >> 0x48, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.257] AMD-Vi: Setup I/O page table: device id = >> 0x50, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.270] AMD-Vi: Setup I/O page table: device id = >> 0x58, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.282] AMD-Vi: Setup I/O page table: device id = >> 0x60, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.294] AMD-Vi: Setup I/O page table: device id = >> 0x68, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.307] AMD-Vi: Setup I/O page table: device id = >> 0x88, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.320] AMD-Vi: Setup I/O page table: device id = >> 0x90, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.333] AMD-Vi: Setup I/O page table: device id = >> 0x92, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.346] AMD-Vi: Setup I/O page table: device id = >> 0x98, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.359] AMD-Vi: Setup I/O page table: device id = >> 0x9a, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.373] AMD-Vi: Setup I/O page table: device id = >> 0xa0, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.386] AMD-Vi: Setup I/O page table: device id = >> 0xa2, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.400] AMD-Vi: Setup I/O page table: device id = >> 0xa3, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.414] AMD-Vi: Setup I/O page table: device id = >> 0xa4, type = 0x5, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.428] AMD-Vi: Setup I/O page table: device id = >> 0xa5, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.443] AMD-Vi: Setup I/O page table: device id = >> 0xa8, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.457] AMD-Vi: Setup I/O page table: device id = >> 0xb0, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.472] AMD-Vi: Setup I/O page table: device id = >> 0xb2, type = 0x7, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.487] AMD-Vi: Skipping host bridge 0000:00:18.0 >> (XEN) [2017-04-24 21:20:49.502] AMD-Vi: Skipping host bridge 0000:00:18.1 >> (XEN) [2017-04-24 21:20:49.516] AMD-Vi: Skipping host bridge 0000:00:18.2 >> (XEN) [2017-04-24 21:20:49.531] AMD-Vi: Skipping host bridge 0000:00:18.3 >> (XEN) [2017-04-24 21:20:49.546] AMD-Vi: Skipping host bridge 0000:00:18.4 >> (XEN) [2017-04-24 21:20:49.561] AMD-Vi: Setup I/O page table: device id = >> 0x400, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.576] AMD-Vi: Setup I/O page table: device id = >> 0x500, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.591] AMD-Vi: Setup I/O page table: device id = >> 0x608, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.607] AMD-Vi: Setup I/O page table: device id = >> 0x610, type = 0x2, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.622] AMD-Vi: Setup I/O page table: device id = >> 0x700, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.638] AMD-Vi: Setup I/O page table: device id = >> 0x800, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.655] AMD-Vi: Setup I/O page table: device id = >> 0x900, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.671] AMD-Vi: Setup I/O page table: device id = >> 0x901, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.687] AMD-Vi: Setup I/O page table: device id = >> 0xa00, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.704] AMD-Vi: Setup I/O page table: device id = >> 0xa01, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.721] AMD-Vi: Setup I/O page table: device id = >> 0xa02, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.738] AMD-Vi: Setup I/O page table: device id = >> 0xa03, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.755] AMD-Vi: Setup I/O page table: device id = >> 0xa04, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.772] AMD-Vi: Setup I/O page table: device id = >> 0xa05, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.790] AMD-Vi: Setup I/O page table: device id = >> 0xa06, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.808] AMD-Vi: Setup I/O page table: device id = >> 0xa07, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.826] AMD-Vi: Setup I/O page table: device id = >> 0xb00, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.844] AMD-Vi: Setup I/O page table: device id = >> 0xc00, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.862] AMD-Vi: Setup I/O page table: device id = >> 0xd00, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.880] AMD-Vi: Setup I/O page table: device id = >> 0xe00, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.899] AMD-Vi: Setup I/O page table: device id = >> 0xf00, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.917] AMD-Vi: Setup I/O page table: device id = >> 0xf01, type = 0x1, root table = 0x441ddb000, domain = 0, paging mode = 3 >> (XEN) [2017-04-24 21:20:49.943] Scrubbing Free RAM on 1 nodes using 6 CPUs >> (XEN) [2017-04-24 21:20:50.047] .............................done. >> (XEN) [2017-04-24 21:20:53.044] Initial low memory virq threshold set at >> 0x4000 pages. >> (XEN) [2017-04-24 21:20:53.063] Std. Loglevel: All >> (XEN) [2017-04-24 21:20:53.081] Guest Loglevel: All >> (XEN) [2017-04-24 21:20:53.100] Xen is relinquishing VGA console. >> (XEN) [2017-04-24 21:20:53.202] *** Serial input -> DOM0 (type 'CTRL-a' >> three times to switch input to Xen) >> (XEN) [2017-04-24 21:20:53.202] Freed 460kB init memory >> (XEN) [2017-04-24 21:20:53.203] d0v0 Unhandled invalid opcode fault/trap >> [#6, ec=ffffffff] >> (XEN) [2017-04-24 21:20:53.203] domain_crash_sync called from entry.S: fault >> at ffff82d080358f70 entry.o#create_bounce_frame+0x145/0x154 >> (XEN) [2017-04-24 21:20:53.203] Domain 0 (vcpu#0) crashed on cpu#0: >> (XEN) [2017-04-24 21:20:53.203] ----[ Xen-4.9-unstable x86_64 debug=y >> Not tainted ]---- >> (XEN) [2017-04-24 21:20:53.203] CPU: 0 >> (XEN) [2017-04-24 21:20:53.203] RIP: e033:[<ffffffff8255a485>] > > Can you please tell us symbol+offset for RIP? > > Juergen > Sure: # addr2line -e vmlinux-4.11.0-rc8-20170424-linus-doflr-xennext-boris+ ffffffff8255a485 linux-linus/arch/x86/xen/enlighten_pv.c:288 Which is: static bool __init xen_check_xsave(void) { unsigned int err, eax, edx; /* * Xen 4.0 and older accidentally leaked the host XSAVE flag into guest * view, despite not being able to support guests using the * functionality. Probe for the actual availability of XSAVE by seeing * whether xgetbv executes successfully or raises #UD. */ HERE --> asm volatile("1: .byte 0x0f,0x01,0xd0\n\t" /* xgetbv */ "xor %[err], %[err]\n" "2:\n\t" ".pushsection .fixup,\"ax\"\n\t" "3: movl $1,%[err]\n\t" "jmp 2b\n\t" ".popsection\n\t" _ASM_EXTABLE(1b, 3b) : [err] "=r" (err), "=a" (eax), "=d" (edx) : "c" (0)); return err == 0; } -- Sander _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel

©2013 Xen Project, A Linux Foundation Collaborative Project. All Rights Reserved.
Linux Foundation is a registered trademark of The Linux Foundation.
Xen Project is a trademark of The Linux Foundation.