Re: [Qemu-devel] qemu 2.2 crash on linux hvm domU (full backtrace included)

[Don Slutz <dslutz@xxxxxxxxxxx>]

I have posted the patch:

Subject: [BUGFIX][PATCH for 2.2 1/1] hw/i386/pc_piix.c: Also pass vmport=off for xenfv machine
Date: Wed, 19 Nov 2014 12:30:57 -0500
Message-ID: <1416418257-10166-1-git-send-email-dslutz@xxxxxxxxxxx>


Which fixes QEMU 2.2 for xenfv.  However if you configure xen_platform_pci=0 you will still
have this issue.  The good news is that xen-4.5 currently does not have QEMU 2.2 and so does
not have this issue.

Only people (groups like spice?) that want QEMU 2.2.0 with xen 4.5.0 (or older xen versions)
will hit this.

I have changes to xen 4.6 which will fix the xen_platform_pci=0 case also.

In order to get xen 4.5 to fully work with QEMU 2.2.0 (both in hard freeze)

the 1st patch from "Dr. David Alan Gilbert <dgilbert@xxxxxxxxxx>"
would need to be applied to xen's qemu 2.0.2 (+ changes) so that
vmport=off can be added to --machine.

And a patch (yet to be written, subset of changes I have pending for 4.6)
that adds vmport=off to QEMU args for --machine (it can be done in all cases).

    -Don Slutz



On 11/19/14 10:52, Stefano Stabellini wrote:
> On Wed, 19 Nov 2014, Fabio Fantoni wrote:
> > Il 19/11/2014 15:56, Don Slutz ha scritto:
> > > I think I know what is happening here.  But you are pointing at the wrong
> > > change.
> > >
> > > commit 9b23cfb76b3a5e9eb5cc899eaf2f46bc46d33ba4
> > >
> > > Is what I am guessing at this time is the issue.  I think that xen_enabled()
> > > is
> > > returning false in pc_machine_initfn.  Where as in pc_init1 is is returning
> > > true.
> > >
> > > I am thinking that:
> > >
> > >
> > > diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> > > index 7bb97a4..3268c29 100644
> > > --- a/hw/i386/pc_piix.c
> > > +++ b/hw/i386/pc_piix.c
> > > @@ -914,7 +914,7 @@ static QEMUMachine xenfv_machine = {
> > >       .desc = "Xen Fully-virtualized PC",
> > >       .init = pc_xen_hvm_init,
> > >       .max_cpus = HVM_MAX_VCPUS,
> > > -    .default_machine_opts = "accel=xen",
> > > +    .default_machine_opts = "accel=xen,vmport=off",
> > >       .hot_add_cpu = pc_hot_add_cpu,
> > >   };
> > >   #endif
> > >
> > > Will fix your issue. I have not tested this yet.
> > Tested now and it solves regression of linux hvm domUs with qemu 2.2, thanks.
> > I think that I'm not the only with this regression and that this patch (or a
> > fix to the cause in vmport) should be applied before qemu 2.2 final.
> Don,
> please submit a proper patch with a Signed-off-by.
>
> Thanks!
>
> - Stefano
>
> > >      -Don Slutz
> > >
> > >
> > > On 11/19/14 09:04, Fabio Fantoni wrote:
> > > > Il 14/11/2014 12:25, Fabio Fantoni ha scritto:
> > > > > dom0 xen-unstable from staging git with "x86/hvm: Extend HVM cpuid leaf
> > > > > with vcpu id" and "x86/hvm: Add per-vcpu evtchn upcalls" patches, and
> > > > > qemu 2.2 from spice git (spice/next commit
> > > > > e779fa0a715530311e6f59fc8adb0f6eca914a89):
> > > > > https://github.com/Fantu/Xen/commits/rebase/m2r-staging
> > > > I tried with qemu  tag v2.2.0-rc2 and crash still happen, here the full
> > > > backtrace of latest test:
> > > > > Program received signal SIGSEGV, Segmentation fault.
> > > > > 0x0000555555689b07 in vmport_ioport_read (opaque=0x5555564443a0, addr=0,
> > > > >      size=4) at /mnt/vm/xen/Xen/tools/qemu-xen-dir/hw/misc/vmport.c:73
> > > > > 73          eax = env->regs[R_EAX];
> > > > > (gdb) bt full
> > > > > #0  0x0000555555689b07 in vmport_ioport_read (opaque=0x5555564443a0,
> > > > > addr=0,
> > > > >      size=4) at /mnt/vm/xen/Xen/tools/qemu-xen-dir/hw/misc/vmport.c:73
> > > > >          s = 0x5555564443a0
> > > > >          cs = 0x0
> > > > >          cpu = 0x0
> > > > >          __func__ = "vmport_ioport_read"
> > > > >          env = 0x8250
> > > > >          command = 0 '\000'
> > > > >          eax = 0
> > > > > #1  0x0000555555655fc4 in memory_region_read_accessor
> > > > > (mr=0x555556444428,
> > > > >      addr=0, value=0x7fffffffd8d0, size=4, shift=0, mask=4294967295)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:410
> > > > >          tmp = 0
> > > > > #2  0x00005555556562b7 in access_with_adjusted_size (addr=0,
> > > > >      value=0x7fffffffd8d0, size=4, access_size_min=4, access_size_max=4,
> > > > >      access=0x555555655f62 <memory_region_read_accessor>,
> > > > > mr=0x555556444428)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:480
> > > > >          access_mask = 4294967295
> > > > >          access_size = 4
> > > > >          i = 0
> > > > > #3  0x00005555556590e9 in memory_region_dispatch_read1
> > > > > (mr=0x555556444428,
> > > > >      addr=0, size=4) at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:1077
> > > > >          data = 0
> > > > > #4  0x00005555556591b1 in memory_region_dispatch_read
> > > > > (mr=0x555556444428,
> > > > >      addr=0, pval=0x7fffffffd9a8, size=4)
> > > > > ---Type <return> to continue, or q <return> to quit---
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:1099
> > > > > No locals.
> > > > > #5  0x000055555565cbbc in io_mem_read (mr=0x555556444428, addr=0,
> > > > >      pval=0x7fffffffd9a8, size=4)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:1962
> > > > > No locals.
> > > > > #6  0x000055555560a1ca in address_space_rw (as=0x555555eaf920,
> > > > > addr=22104,
> > > > >      buf=0x7fffffffda50 "\377\377\377\377", len=4, is_write=false)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/exec.c:2167
> > > > >          l = 4
> > > > >          ptr = 0x555555a92d87 "%s/%d:\n"
> > > > >          val = 7852232130387826944
> > > > >          addr1 = 0
> > > > >          mr = 0x555556444428
> > > > >          error = false
> > > > > #7  0x000055555560a38f in address_space_read (as=0x555555eaf920,
> > > > > addr=22104,
> > > > >      buf=0x7fffffffda50 "\377\377\377\377", len=4)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/exec.c:2205
> > > > > No locals.
> > > > > #8  0x000055555564fd4b in cpu_inl (addr=22104)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/ioport.c:117
> > > > >          buf = "\377\377\377\377"
> > > > >          val = 21845
> > > > > #9  0x0000555555670c73 in do_inp (addr=22104, size=4)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:684
> > > > > ---Type <return> to continue, or q <return> to quit---
> > > > > No locals.
> > > > > #10 0x0000555555670ee0 in cpu_ioreq_pio (req=0x7ffff7ff3020)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:747
> > > > >          i = 1
> > > > > #11 0x00005555556714b3 in handle_ioreq (state=0x5555563c2510,
> > > > >      req=0x7ffff7ff3020) at
> > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:853
> > > > > No locals.
> > > > > #12 0x0000555555671826 in cpu_handle_ioreq (opaque=0x5555563c2510)
> > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:931
> > > > >          state = 0x5555563c2510
> > > > >          req = 0x7ffff7ff3020
> > > > > #13 0x000055555596e240 in qemu_iohandler_poll (pollfds=0x555556389a30,
> > > > > ret=1)
> > > > >      at iohandler.c:143
> > > > >          revents = 1
> > > > >          pioh = 0x5555563f7610
> > > > >          ioh = 0x555556450a40
> > > > > #14 0x000055555596de1c in main_loop_wait (nonblocking=0) at
> > > > > main-loop.c:495
> > > > >          ret = 1
> > > > >          timeout = 4294967295
> > > > >          timeout_ns = 3965432
> > > > > #15 0x0000555555756d3f in main_loop () at vl.c:1882
> > > > >          nonblocking = false
> > > > >          last_io = 0
> > > > > #16 0x000055555575ea49 in main (argc=62, argv=0x7fffffffe048,
> > > > >      envp=0x7fffffffe240) at vl.c:4400
> > > > > ---Type <return> to continue, or q <return> to quit---
> > > > >          i = 128
> > > > >          snapshot = 0
> > > > >          linux_boot = 0
> > > > >          initrd_filename = 0x0
> > > > >          kernel_filename = 0x0
> > > > >          kernel_cmdline = 0x555555a48f86 ""
> > > > >          boot_order = 0x555556387460 "dc"
> > > > >          ds = 0x5555564b2040
> > > > >          cyls = 0
> > > > >          heads = 0
> > > > >          secs = 0
> > > > >          translation = 0
> > > > >          hda_opts = 0x0
> > > > >          opts = 0x5555563873b0
> > > > >          machine_opts = 0x555556389010
> > > > >          icount_opts = 0x0
> > > > >          olist = 0x555555e57e80
> > > > >          optind = 62
> > > > >          optarg = 0x7fffffffe914
> > > > > "file=/mnt/vm/disks/FEDORA19.disk1.xm,if=ide,index=0,media=disk,format=raw,cache=writeback"
> > > > >          loadvm = 0x0
> > > > >          machine_class = 0x55555637d5c0
> > > > >          cpu_model = 0x0
> > > > >          vga_model = 0x0
> > > > >          qtest_chrdev = 0x0
> > > > > ---Type <return> to continue, or q <return> to quit---
> > > > >          qtest_log = 0x0
> > > > >          pid_file = 0x0
> > > > >          incoming = 0x0
> > > > >          show_vnc_port = 0
> > > > >          defconfig = true
> > > > >          userconfig = true
> > > > >          log_mask = 0x0
> > > > >          log_file = 0x0
> > > > >          mem_trace = {malloc = 0x55555575a402 <malloc_and_trace>,
> > > > >            realloc = 0x55555575a45a <realloc_and_trace>,
> > > > >            free = 0x55555575a4c1 <free_and_trace>, calloc = 0, try_malloc
> > > > > = 0,
> > > > >            try_realloc = 0}
> > > > >          trace_events = 0x0
> > > > >          trace_file = 0x0
> > > > >          default_ram_size = 134217728
> > > > >          maxram_size = 2130706432
> > > > >          ram_slots = 0
> > > > >          vmstate_dump_file = 0x0
> > > > >          main_loop_err = 0x0
> > > > >          __func__ = "main"
> > > > I take a fast look in source based on calltrace and I saw this commit:
> > > > http://secure-web.cisco.com/1EXVvN4KugVmCtI8RnLSX68LVqyly3ymtr7bhU7HDX8viw0fYlCBA54KE1K_VbwvaJhMDSmpeNsTiBHicuNWfTtG_XH9DP4c-7oqEb6kCcWzXKnCcQNOb9ikh4FRIBDr9R069aR0R5fdiB9q4iQSFDc4X0ttOQHu8h69rpG-X2bI/http%3A%2F%2Fgit.qemu.org%2F%3Fp%3Dqemu.git%3Ba%3Dcommit%3Bh%3D37f9e258b64b3cf97c7c78df60660100c9eb5a21
> > > > xen-hvm.c: Add support for Xen access to vmport
> > > > Can be the cause of regression and I must try another test reverting this
> > > > commit or is not related?
> > > >
> > > > Thanks for any reply anddo sorry for my bad english.
> > > >
> > > > > Qemu crash on fedora 20 lxde (with software updates of some days ago)
> > > > > boot with this backtrace:
> > > > > > Program received signal SIGSEGV, Segmentation fault.
> > > > > > 0x0000555555689607 in vmport_ioport_read (opaque=0x555556440a20,
> > > > > > addr=0, size=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/hw/misc/vmport.c:73
> > > > > > 73          eax = env->regs[R_EAX];
> > > > > > (gdb) bt full
> > > > > > #0  0x0000555555689607 in vmport_ioport_read (opaque=0x555556440a20,
> > > > > > addr=0, size=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/hw/misc/vmport.c:73
> > > > > >          s = 0x555556440a20
> > > > > >          cs = 0x0
> > > > > >          cpu = 0x0
> > > > > >          __func__ = "vmport_ioport_read"
> > > > > >          env = 0x8250
> > > > > >          command = 0 '\000'
> > > > > >          eax = 0
> > > > > > #1  0x0000555555655b9c in memory_region_read_accessor
> > > > > > (mr=0x555556440aa8, addr=0, value=0x7fffffffd8c0, size=4, shift=0,
> > > > > > mask=4294967295)
> > > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:410
> > > > > >          tmp = 0
> > > > > > #2  0x0000555555655e8f in access_with_adjusted_size (addr=0,
> > > > > > value=0x7fffffffd8c0, size=4, access_size_min=4, access_size_max=4,
> > > > > >      access=0x555555655b3a <memory_region_read_accessor>,
> > > > > > mr=0x555556440aa8) at /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:480
> > > > > >          access_mask = 4294967295
> > > > > >          access_size = 4
> > > > > >          i = 0
> > > > > > #3  0x0000555555658cc1 in memory_region_dispatch_read1
> > > > > > (mr=0x555556440aa8, addr=0, size=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:1077
> > > > > >          data = 0
> > > > > > #4  0x0000555555658d89 in memory_region_dispatch_read
> > > > > > (mr=0x555556440aa8, addr=0, pval=0x7fffffffd998, size=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:1099
> > > > > > No locals.
> > > > > > #5  0x000055555565c794 in io_mem_read (mr=0x555556440aa8, addr=0,
> > > > > > pval=0x7fffffffd998, size=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/memory.c:1962
> > > > > > No locals.
> > > > > > #6  0x0000555555609fae in address_space_rw (as=0x555555eae840,
> > > > > > addr=22104, buf=0x7fffffffda40 "\377\377\377\377", len=4,
> > > > > > is_write=false)
> > > > > >      at /mnt/vm/xen/Xen/tools/qemu-xen-dir/exec.c:2169
> > > > > >          l = 4
> > > > > >          ptr = 0x0
> > > > > >          val = 7964229952888770560
> > > > > >          addr1 = 0
> > > > > >          mr = 0x555556440aa8
> > > > > >          error = false
> > > > > > #7  0x000055555560a173 in address_space_read (as=0x555555eae840,
> > > > > > addr=22104, buf=0x7fffffffda40 "\377\377\377\377", len=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/exec.c:2207
> > > > > > No locals.
> > > > > > #8  0x000055555564fac7 in cpu_inl (addr=22104) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/ioport.c:117
> > > > > >          buf = "\377\377\377\377"
> > > > > >          val = 21845
> > > > > > #9  0x000055555567084b in do_inp (addr=22104, size=4) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:684
> > > > > > No locals.
> > > > > > #10 0x0000555555670ab8 in cpu_ioreq_pio (req=0x7ffff7ff3000) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:747
> > > > > >          i = 0
> > > > > > #11 0x000055555567108b in handle_ioreq (state=0x5555563c1590,
> > > > > > req=0x7ffff7ff3000) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:853
> > > > > > ---Type <return> to continue, or q <return> to quit---
> > > > > > No locals.
> > > > > > #12 0x00005555556713fe in cpu_handle_ioreq (opaque=0x5555563c1590) at
> > > > > > /mnt/vm/xen/Xen/tools/qemu-xen-dir/xen-hvm.c:931
> > > > > >          state = 0x5555563c1590
> > > > > >          req = 0x7ffff7ff3000
> > > > > > #13 0x000055555596d874 in qemu_iohandler_poll (pollfds=0x555556388a30,
> > > > > > ret=1) at iohandler.c:143
> > > > > >          revents = 1
> > > > > >          pioh = 0x5555563f3c90
> > > > > >          ioh = 0x555556515f80
> > > > > > #14 0x000055555596d450 in main_loop_wait (nonblocking=0) at
> > > > > > main-loop.c:495
> > > > > >          ret = 1
> > > > > >          timeout = 4294967295
> > > > > >          timeout_ns = 3418165
> > > > > > #15 0x00005555557567b7 in main_loop () at vl.c:1882
> > > > > >          nonblocking = false
> > > > > >          last_io = 1
> > > > > > #16 0x000055555575e4c1 in main (argc=62, argv=0x7fffffffe038,
> > > > > > envp=0x7fffffffe230) at vl.c:4400
> > > > > >          i = 128
> > > > > >          snapshot = 0
> > > > > >          linux_boot = 0
> > > > > >          initrd_filename = 0x0
> > > > > >          kernel_filename = 0x0
> > > > > >          kernel_cmdline = 0x555555a485c6 ""
> > > > > >          boot_order = 0x5555563864e0 "dc"
> > > > > >          ds = 0x5555564c71b0
> > > > > >          cyls = 0
> > > > > >          heads = 0
> > > > > >          secs = 0
> > > > > >          translation = 0
> > > > > >          hda_opts = 0x0
> > > > > >          opts = 0x555556386430
> > > > > >          machine_opts = 0x555556388090
> > > > > >          icount_opts = 0x0
> > > > > >          olist = 0x555555e56da0
> > > > > >          optind = 62
> > > > > >          optarg = 0x7fffffffe914
> > > > > > "file=/mnt/vm/disks/FEDORA19.disk1.xm,if=ide,index=0,media=disk,format=raw,cache=writeback"
> > > > > >          loadvm = 0x0
> > > > > >          machine_class = 0x55555637c5c0
> > > > > >          cpu_model = 0x0
> > > > > >          vga_model = 0x0
> > > > > >          qtest_chrdev = 0x0
> > > > > > ---Type <return> to continue, or q <return> to quit---
> > > > > >          qtest_log = 0x0
> > > > > >          pid_file = 0x0
> > > > > >          incoming = 0x0
> > > > > >          show_vnc_port = 0
> > > > > >          defconfig = true
> > > > > >          userconfig = true
> > > > > >          log_mask = 0x0
> > > > > >          log_file = 0x0
> > > > > >          mem_trace = {malloc = 0x555555759e7a <malloc_and_trace>,
> > > > > > realloc = 0x555555759ed2 <realloc_and_trace>, free = 0x555555759f39
> > > > > > <free_and_trace>, calloc = 0,
> > > > > >            try_malloc = 0, try_realloc = 0}
> > > > > >          trace_events = 0x0
> > > > > >          trace_file = 0x0
> > > > > >          default_ram_size = 134217728
> > > > > >          maxram_size = 2013265920
> > > > > >          ram_slots = 0
> > > > > >          vmstate_dump_file = 0x0
> > > > > >          main_loop_err = 0x0
> > > > > >          __func__ = "main"
> > > > >
> > > > > > xl -vvv create /etc/xen/FEDORA19.cfg
> > > > > > Parsing config from /etc/xen/FEDORA19.cfg
> > > > > > libxl: debug: libxl_create.c:1529:do_domain_create: ao 0xac2660:
> > > > > > create: how=(nil) callback=(nil) poller=0xac2af0
> > > > > > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > > > > > vdev=hda spec.backend=unknown
> > > > > > libxl: debug: libxl_device.c:215:disk_try_backend: Disk vdev=hda,
> > > > > > backend phy unsuitable as phys path not a block device
> > > > > > libxl: debug: libxl_device.c:298:libxl__device_disk_set_backend: Disk
> > > > > > vdev=hda, using backend qdisk
> > > > > > libxl: debug: libxl_create.c:935:initiate_domain_create: running
> > > > > > bootloader
> > > > > > libxl: debug: libxl_bootloader.c:323:libxl__bootloader_run: not a PV
> > > > > > domain, skipping bootloader
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac32f8: deregister unregistered
> > > > > > xc: detail: elf_parse_binary: phdr: paddr=0x100000 memsz=0x26b324
> > > > > > xc: detail: elf_parse_binary: memory: 0x100000 -> 0x36b324
> > > > > > xc: detail: VIRTUAL MEMORY ARRANGEMENT:
> > > > > > xc: detail:   Loader: 0000000000100000->000000000036b324
> > > > > > xc: detail:   Modules: 0000000000000000->0000000000000000
> > > > > > xc: detail:   TOTAL: 0000000000000000->0000000078000000
> > > > > > xc: detail:   ENTRY:    0000000000100000
> > > > > > xc: detail: PHYSICAL MEMORY ALLOCATION:
> > > > > > xc: detail:   4KB PAGES: 0x0000000000000200
> > > > > > xc: detail:   2MB PAGES: 0x00000000000003bf
> > > > > > xc: detail:   1GB PAGES: 0x0000000000000000
> > > > > > xc: detail: elf_load_binary: phdr 0 at 0x7f1f9729f000 ->
> > > > > > 0x7f1f975012b0
> > > > > > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > > > > > vdev=hda spec.backend=qdisk
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac4ad0: deregister unregistered
> > > > > > libxl: debug: libxl_dm.c:1415:libxl__spawn_local_dm: Spawning
> > > > > > device-model /usr/lib/xen/bin/qemu-gdb with arguments:
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > /usr/lib/xen/bin/qemu-gdb
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -xen-domid
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   9
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -chardev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-9,server,nowait
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   -mon
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > chardev=libxl-cmd,mode=control
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -nodefaults
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   -name
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: FEDORA
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   -k
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   it
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -spice
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > port=6005,tls-port=0,addr=0.0.0.0,disable-ticketing,agent-mouse=on,disable-copy-paste
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: virtio-serial
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -chardev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > spicevmc,id=vdagent,name=vdagent
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > virtserialport,chardev=vdagent,name=com.redhat.spice.0
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > qxl-vga,vram_size_mb=64,ram_size_mb=64
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   -boot
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: order=dc
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > ich9-usb-ehci1,id=usb,addr=0x1d.0x7,multifunction=on
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > ich9-usb-uhci1,masterbus=usb.0,firstport=0,addr=0x1d.0,multifunction=on
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > ich9-usb-uhci2,masterbus=usb.0,firstport=2,addr=0x1d.0x1,multifunction=on
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > ich9-usb-uhci3,masterbus=usb.0,firstport=4,addr=0x1d.0x2,multifunction=on
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -chardev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > spicevmc,name=usbredir,id=usbrc1
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > usb-redir,chardev=usbrc1,id=usbrc1
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -chardev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > spicevmc,name=usbredir,id=usbrc2
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > usb-redir,chardev=usbrc2,id=usbrc2
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -chardev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > spicevmc,name=usbredir,id=usbrc3
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > usb-redir,chardev=usbrc3,id=usbrc3
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -chardev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > spicevmc,name=usbredir,id=usbrc4
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > usb-redir,chardev=usbrc4,id=usbrc4
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -soundhw
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   hda
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   -smp
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: 2,maxcpus=2
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -device
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > rtl8139,id=nic0,netdev=net0,mac=00:16:3e:18:e1:35
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -netdev
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > type=tap,id=net0,ifname=vif9.0-emu,script=no,downscript=no
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -machine
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   xenfv
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   -m
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:   1920
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm: -drive
> > > > > > libxl: debug: libxl_dm.c:1417:libxl__spawn_local_dm:
> > > > > > file=/mnt/vm/disks/FEDORA19.disk1.xm,if=ide,index=0,media=disk,format=raw,cache=writeback
> > > > > > libxl: debug: libxl_event.c:570:libxl__ev_xswatch_register: watch
> > > > > > w=0xac3558 wpath=/local/domain/0/device-model/9/state token=3/0:
> > > > > > register slotnum=3
> > > > > > libxl: debug: libxl_create.c:1545:do_domain_create: ao 0xac2660:
> > > > > > inprogress: poller=0xac2af0, flags=i
> > > > > > libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0xac3558
> > > > > > wpath=/local/domain/0/device-model/9/state token=3/0: event
> > > > > > epath=/local/domain/0/device-model/9/state
> > > > > > libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0xac3558
> > > > > > wpath=/local/domain/0/device-model/9/state token=3/0: event
> > > > > > epath=/local/domain/0/device-model/9/state
> > > > > > libxl: debug: libxl_event.c:606:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac3558 wpath=/local/domain/0/device-model/9/state token=3/0:
> > > > > > deregister slotnum=3
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac3558: deregister unregistered
> > > > > > libxl: debug: libxl_qmp.c:691:libxl__qmp_initialize: connected to
> > > > > > /var/run/xen/qmp-libxl-9
> > > > > > libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: qmp
> > > > > > libxl: debug: libxl_qmp.c:541:qmp_send_prepare: next qmp command: '{
> > > > > >      "execute": "qmp_capabilities",
> > > > > >      "id": 1
> > > > > > }
> > > > > > '
> > > > > > libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type:
> > > > > > return
> > > > > > libxl: debug: libxl_qmp.c:541:qmp_send_prepare: next qmp command: '{
> > > > > >      "execute": "query-chardev",
> > > > > >      "id": 2
> > > > > > }
> > > > > > '
> > > > > > libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type:
> > > > > > return
> > > > > > libxl: debug: libxl_qmp.c:541:qmp_send_prepare: next qmp command: '{
> > > > > >      "execute": "query-vnc",
> > > > > >      "id": 3
> > > > > > }
> > > > > > '
> > > > > > libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type:
> > > > > > return
> > > > > > libxl: debug: libxl_event.c:570:libxl__ev_xswatch_register: watch
> > > > > > w=0xac8368 wpath=/local/domain/0/backend/vif/9/0/state token=3/1:
> > > > > > register slotnum=3
> > > > > > libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0xac8368
> > > > > > wpath=/local/domain/0/backend/vif/9/0/state token=3/1: event
> > > > > > epath=/local/domain/0/backend/vif/9/0/state
> > > > > > libxl: debug: libxl_event.c:810:devstate_watch_callback: backend
> > > > > > /local/domain/0/backend/vif/9/0/state wanted state 2 still waiting
> > > > > > state 1
> > > > > > libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0xac8368
> > > > > > wpath=/local/domain/0/backend/vif/9/0/state token=3/1: event
> > > > > > epath=/local/domain/0/backend/vif/9/0/state
> > > > > > libxl: debug: libxl_event.c:806:devstate_watch_callback: backend
> > > > > > /local/domain/0/backend/vif/9/0/state wanted state 2 ok
> > > > > > libxl: debug: libxl_event.c:606:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac8368 wpath=/local/domain/0/backend/vif/9/0/state token=3/1:
> > > > > > deregister slotnum=3
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac8368: deregister unregistered
> > > > > > libxl: debug: libxl_device.c:1028:device_hotplug: calling hotplug
> > > > > > script: /etc/xen/scripts/vif-bridge online
> > > > > > libxl: debug: libxl_aoutils.c:513:libxl__async_exec_start: forking to
> > > > > > execute: /etc/xen/scripts/vif-bridge online
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac83f0: deregister unregistered
> > > > > > libxl: debug: libxl_device.c:1028:device_hotplug: calling hotplug
> > > > > > script: /etc/xen/scripts/vif-bridge add
> > > > > > libxl: debug: libxl_aoutils.c:513:libxl__async_exec_start: forking to
> > > > > > execute: /etc/xen/scripts/vif-bridge add
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac83f0: deregister unregistered
> > > > > > libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch
> > > > > > w=0xac83f0: deregister unregistered
> > > > > > libxl: debug: libxl_event.c:1909:libxl__ao_progress_report: ao
> > > > > > 0xac2660: progress report: ignored
> > > > > > libxl: debug: libxl_event.c:1739:libxl__ao_complete: ao 0xac2660:
> > > > > > complete, rc=0
> > > > > > libxl: debug: libxl_event.c:1711:libxl__ao__destroy: ao 0xac2660:
> > > > > > destroy
> > > > > > xc: debug: hypercall buffer: total allocations:704 total releases:704
> > > > > > xc: debug: hypercall buffer: current allocations:0 maximum
> > > > > > allocations:4
> > > > > > xc: debug: hypercall buffer: cache current size:4
> > > > > > xc: debug: hypercall buffer: cache hits:692 misses:4 toobig:8
> > > > > > xc: debug: hypercall buffer: total allocations:0 total releases:0
> > > > > > xc: debug: hypercall buffer: current allocations:0 maximum
> > > > > > allocations:0
> > > > > > xc: debug: hypercall buffer: cache current size:0
> > > > > > xc: debug: hypercall buffer: cache hits:0 misses:0 toobig:0
> > > > > xl dmesg
> > > > > > (d9) HVM Loader
> > > > > > (d9) Detected Xen v4.5.0-rc
> > > > > > (d9) Xenbus rings @0xfeffc000, event channel 1
> > > > > > (d9) System requested SeaBIOS
> > > > > > (d9) CPU speed is 2660 MHz
> > > > > > (d9) Relocating guest memory for lowmem MMIO space disabled
> > > > > > (XEN) irq.c:279: Dom9 PCI link 0 changed 0 -> 5
> > > > > > (d9) PCI-ISA link 0 routed to IRQ5
> > > > > > (XEN) irq.c:279: Dom9 PCI link 1 changed 0 -> 10
> > > > > > (d9) PCI-ISA link 1 routed to IRQ10
> > > > > > (XEN) irq.c:279: Dom9 PCI link 2 changed 0 -> 11
> > > > > > (d9) PCI-ISA link 2 routed to IRQ11
> > > > > > (XEN) irq.c:279: Dom9 PCI link 3 changed 0 -> 5
> > > > > > (d9) PCI-ISA link 3 routed to IRQ5
> > > > > > (d9) pci dev 01:3 INTA->IRQ10
> > > > > > (d9) pci dev 02:0 INTA->IRQ11
> > > > > > (d9) pci dev 03:0 INTA->IRQ5
> > > > > > (d9) pci dev 04:0 INTA->IRQ5
> > > > > > (d9) pci dev 05:0 INTA->IRQ10
> > > > > > (d9) pci dev 06:0 INTA->IRQ11
> > > > > > (d9) pci dev 1d:0 INTA->IRQ10
> > > > > > (d9) pci dev 1d:1 INTB->IRQ11
> > > > > > (d9) pci dev 1d:2 INTC->IRQ5
> > > > > > (d9) pci dev 1d:7 INTD->IRQ5
> > > > > > (d9) No RAM in high memory; setting high_mem resource base to
> > > > > > 100000000
> > > > > > (d9) pci dev 05:0 bar 10 size 004000000: 0f0000000
> > > > > > (d9) pci dev 05:0 bar 14 size 004000000: 0f4000000
> > > > > > (d9) pci dev 02:0 bar 14 size 001000000: 0f8000008
> > > > > > (d9) pci dev 06:0 bar 30 size 000040000: 0f9000000
> > > > > > (d9) pci dev 05:0 bar 30 size 000010000: 0f9040000
> > > > > > (d9) pci dev 03:0 bar 10 size 000004000: 0f9050000
> > > > > > (d9) pci dev 05:0 bar 18 size 000002000: 0f9054000
> > > > > > (d9) pci dev 04:0 bar 14 size 000001000: 0f9056000
> > > > > > (d9) pci dev 1d:7 bar 10 size 000001000: 0f9057000
> > > > > > (d9) pci dev 02:0 bar 10 size 000000100: 00000c001
> > > > > > (d9) pci dev 06:0 bar 10 size 000000100: 00000c101
> > > > > > (d9) pci dev 06:0 bar 14 size 000000100: 0f9058000
> > > > > > (d9) pci dev 04:0 bar 10 size 000000020: 00000c201
> > > > > > (d9) pci dev 05:0 bar 1c size 000000020: 00000c221
> > > > > > (d9) pci dev 1d:0 bar 20 size 000000020: 00000c241
> > > > > > (d9) pci dev 1d:1 bar 20 size 000000020: 00000c261
> > > > > > (d9) pci dev 1d:2 bar 20 size 000000020: 00000c281
> > > > > > (d9) pci dev 01:1 bar 20 size 000000010: 00000c2a1
> > > > > > (d9) Multiprocessor initialisation:
> > > > > > (d9)  - CPU0 ... 36-bit phys ... fixed MTRRs ... var MTRRs [1/8] ...
> > > > > > done.
> > > > > > (d9)  - CPU1 ... 36-bit phys ... fixed MTRRs ... var MTRRs [1/8] ...
> > > > > > done.
> > > > > > (d9) Testing HVM environment:
> > > > > > (d9)  - REP INSB across page boundaries ... passed
> > > > > > (d9)  - GS base MSRs and SWAPGS ... passed
> > > > > > (d9) Passed 2 of 2 tests
> > > > > > (d9) Writing SMBIOS tables ...
> > > > > > (d9) Loading SeaBIOS ...
> > > > > > (d9) Creating MP tables ...
> > > > > > (d9) Loading ACPI ...
> > > > > > (d9) S3 disabled
> > > > > > (d9) S4 disabled
> > > > > > (d9) vm86 TSS at fc00a100
> > > > > > (d9) BIOS map:
> > > > > > (d9)  10000-100d3: Scratch space
> > > > > > (d9)  c0000-fffff: Main BIOS
> > > > > > (d9) E820 table:
> > > > > > (d9)  [00]: 00000000:00000000 - 00000000:000a0000: RAM
> > > > > > (d9)  HOLE: 00000000:000a0000 - 00000000:000c0000
> > > > > > (d9)  [01]: 00000000:000c0000 - 00000000:00100000: RESERVED
> > > > > > (d9)  [02]: 00000000:00100000 - 00000000:78000000: RAM
> > > > > > (d9)  HOLE: 00000000:78000000 - 00000000:fc000000
> > > > > > (d9)  [03]: 00000000:fc000000 - 00000001:00000000: RESERVED
> > > > > > (d9) Invoking SeaBIOS ...
> > > > > > (d9) SeaBIOS (version
> > > > > > debian/1.7.5-1-0-g506b58d-20140603_102943-testVS01OU)
> > > > > > (d9)
> > > > > > (d9) Found Xen hypervisor signature at 40000000
> > > > > > (d9) Running on QEMU (i440fx)
> > > > > > (d9) xen: copy e820...
> > > > > > (d9) Relocating init from 0x000df619 to 0x77fae600 (size 71995)
> > > > > > (d9) CPU Mhz=2660
> > > > > > (d9) Found 13 PCI devices (max PCI bus is 00)
> > > > > > (d9) Allocated Xen hypercall page at 77fff000
> > > > > > (d9) Detected Xen v4.5.0-rc
> > > > > > (d9) xen: copy BIOS tables...
> > > > > > (d9) Copying SMBIOS entry point from 0x00010010 to 0x000f0f40
> > > > > > (d9) Copying MPTABLE from 0xfc001160/fc001170 to 0x000f0e40
> > > > > > (d9) Copying PIR from 0x00010030 to 0x000f0dc0
> > > > > > (d9) Copying ACPI RSDP from 0x000100b0 to 0x000f0d90
> > > > > > (d9) Using pmtimer, ioport 0xb008
> > > > > > (d9) Scan for VGA option rom
> > > > > > (d9) Running option rom at c000:0003
> > > > > > (XEN) stdvga.c:147:d9v0 entering stdvga and caching modes
> > > > > > (d9) pmm call arg1=0
> > > > > > (d9) Turning on vga text mode console
> > > > > > (d9) SeaBIOS (version
> > > > > > debian/1.7.5-1-0-g506b58d-20140603_102943-testVS01OU)
> > > > > > (d9) Machine UUID 2eca57e6-bff7-404e-bbda-1926d614cd28
> > > > > > (d9) EHCI init on dev 00:1d.7 (regs=0xf9057020)
> > > > > > (d9) Found 0 lpt ports
> > > > > > (d9) Found 0 serial ports
> > > > > > (d9) ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9)
> > > > > > (d9) ATA controller 2 at 170/374/0 (irq 15 dev 9)
> > > > > > (d9) ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (10000 MiBytes)
> > > > > > (d9) Searching bootorder for: /pci@i0cf8/*@1,1/drive@0/disk@0
> > > > > > (d9) UHCI init on dev 00:1d.0 (io=c240)
> > > > > > (d9) UHCI init on dev 00:1d.1 (io=c260)
> > > > > > (d9) UHCI init on dev 00:1d.2 (io=c280)
> > > > > > (d9) PS2 keyboard initialized
> > > > > > (d9) All threads complete.
> > > > > > (d9) Scan for option roms
> > > > > > (d9) Running option rom at c980:0003
> > > > > > (d9) pmm call arg1=1
> > > > > > (d9) pmm call arg1=0
> > > > > > (d9) pmm call arg1=1
> > > > > > (d9) pmm call arg1=0
> > > > > > (d9) Searching bootorder for: /pci@i0cf8/*@6
> > > > > > (d9)
> > > > > > (d9) Press F12 for boot menu.
> > > > > > (d9)
> > > > > > (d9) Searching bootorder for: HALT
> > > > > > (d9) drive 0x000f0d40: PCHS=16383/16/63 translation=lba
> > > > > > LCHS=1024/255/63 s=20480000
> > > > > > (d9) Space available for UMB: ca800-ef000, f0000-f0d40
> > > > > > (d9) Returned 258048 bytes of ZoneHigh
> > > > > > (d9) e820 map has 6 items:
> > > > > > (d9)   0: 0000000000000000 - 000000000009fc00 = 1 RAM
> > > > > > (d9)   1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED
> > > > > > (d9)   2: 00000000000f0000 - 0000000000100000 = 2 RESERVED
> > > > > > (d9)   3: 0000000000100000 - 0000000077fff000 = 1 RAM
> > > > > > (d9)   4: 0000000077fff000 - 0000000078000000 = 2 RESERVED
> > > > > > (d9)   5: 00000000fc000000 - 0000000100000000 = 2 RESERVED
> > > > > > (d9) enter handle_19:
> > > > > > (d9)   NULL
> > > > > > (d9) Booting from Hard Disk...
> > > > > > (d9) Booting from 0000:7c00
> > > > > > (XEN) irq.c:389: Dom9 callback via changed to Direct Vector 0xf3
> > > > > > (XEN) irq.c:279: Dom9 PCI link 0 changed 5 -> 0
> > > > > > (XEN) irq.c:279: Dom9 PCI link 1 changed 10 -> 0
> > > > > > (XEN) irq.c:279: Dom9 PCI link 2 changed 11 -> 0
> > > > > > (XEN) irq.c:279: Dom9 PCI link 3 changed 5 -> 0
> > > > > domU's xl cfg:
> > > > > > name='FEDORA'
> > > > > > builder="hvm"
> > > > > > device_model_override="/usr/lib/xen/bin/qemu-gdb"
> > > > > > memory=2048
> > > > > > vcpus=2
> > > > > > acpi_s3=0
> > > > > > acpi_s4=0
> > > > > > vif=['bridge=xenbr0']
> > > > > > disk=['/mnt/vm/disks/FEDORA19.disk1.xm,raw,hda,rw']
> > > > > > boot='dc'
> > > > > > device_model_version='qemu-xen'
> > > > > > vnc=0
> > > > > > keymap="it"
> > > > > > vga="qxl"
> > > > > > spice=1
> > > > > > spicehost='0.0.0.0'
> > > > > > spiceport=6005
> > > > > > spicedisable_ticketing=1
> > > > > > spicevdagent=1
> > > > > > spice_clipboard_sharing=0
> > > > > > spiceusbredirection=4
> > > > > > soundhw="hda"
> > > > > I tested also with stdvga instead of qxl vga but qemu crash always on
> > > > > fedora boot with same error.
> > > > >
> > > > > If you need more informations/tests tell me and I'll post them.
> > > > >
> > > > > Thanks for any reply and sorry for my bad english.

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