On 15/09/2015 11:20, Gonglei wrote: > On 2015/9/15 14:33, Gonglei wrote: >> On 2015/9/15 9:16, Gonglei wrote: >>> On 2015/9/14 17:28, Paolo Bonzini wrote: >>>> >>>> >>>> On 14/09/2015 10:01, Gonglei (Arei) wrote: >>>>> [2015-09-11 13:42:44] domain is rebooting >>>>> qemu-kvm: /home/abuild/rpmbuild/BUILD/qemu-kvm-2.3.0/exec.c:1188: >>>>> register_subpage: Assertion `existing->mr->subpage || existing->mr == >>>>> &io_mem_unassigned' failed. >>>>> [2015-09-11 13:42:58]: shutting down >>>>> >>>>> Or >>>>> qemu-kvm: >>>>> /home/abuild/rpmbuild/BUILD/qemu-kvm-2.3.0/include/qemu/int128.h:22: >>>>> int128_get64: Assertion `!a.hi' failed. >>>> >>>> You need to provide a backtrace. >>>> >>>> Paolo >>>> >>> Yup, I noticed that, but when I sent this email yesterday, I didn't get a >>> backtrace :( >>> Fortunately, I get a backtrace now: >>> >>> #0 int128_get64 (a=...) at /home/qemu/include/qemu/int128.h:27 >>> #1 0x00007f17ad7a7f1a in register_multipage (d=0x7f179c4f8480, >>> section=0x7f17a323c3f0) at /home/qemu/exec.c:1215 >>> #2 0x00007f17ad7a8266 in mem_add (listener=0x7f17ae043968 >>> <address_space_io+72>, section=0x7f17a323c730) at /home/qemu/exec.c:1250 >>> #3 0x00007f17ad7f843a in address_space_update_topology_pass >>> (as=0x7f17ae043920 <address_space_io>, old_view=0x7f179c1f8b50, >>> new_view=0x7f179c523620, adding=true) >>> at /home/qemu/memory.c:739 >>> #4 0x00007f17ad7f8520 in address_space_update_topology (as=0x7f17ae043920 >>> <address_space_io>) at /home/qemu/memory.c:754 >>> #5 0x00007f17ad7f8660 in memory_region_transaction_commit () at >>> /home/qemu/memory.c:794 >>> #6 0x00007f17ad9a690c in cirrus_update_memory_access (s=0x7f17b12873c0) at >>> hw/display/cirrus_vga.c:2485 >>> #7 0x00007f17ad9a4dac in cirrus_vga_write_gr (s=0x7f17b12873c0, >>> reg_index=9, reg_value=163) at hw/display/cirrus_vga.c:1524 >>> #8 0x00007f17ad9a6e47 in cirrus_vga_ioport_write (opaque=0x7f17b12873c0, >>> addr=975, val=163, size=1) at hw/display/cirrus_vga.c:2672 >>> #9 0x00007f17ad7f6882 in memory_region_write_accessor (mr=0x7f17b1297d88, >>> addr=31, value=0x7f17a323c968, size=1, shift=8, mask=255) at >>> /home/qemu/memory.c:430 >>> #10 0x00007f17ad7f698b in access_with_adjusted_size (addr=30, >>> value=0x7f17a323c968, size=2, access_size_min=1, access_size_max=1, >>> access=0x7f17ad7f67fd <memory_region_write_accessor>, mr=0x7f17b1297d88) >>> at /home/qemu/memory.c:467 >>> #11 0x00007f17ad7f9311 in memory_region_dispatch_write (mr=0x7f17b1297d88, >>> addr=30, data=41737, size=2) at /home/qemu/memory.c:1103 >>> #12 0x00007f17ad7fc22e in io_mem_write (mr=0x7f17b1297d88, addr=30, >>> val=41737, size=2) at /home/qemu/memory.c:2003 >>> #13 0x00007f17ad7aafe4 in address_space_rw (as=0x7f17ae043920 >>> <address_space_io>, addr=974, buf=0x7f17ad6f6000 "\t\243\320", len=2, >>> is_write=true) at /home/qemu/exec.c:2533 >>> #14 0x00007f17ad7f3acf in kvm_handle_io (port=974, data=0x7f17ad6f6000, >>> direction=1, size=2, count=1) at /home/qemu/kvm-all.c:1707 >>> #15 0x00007f17ad7f3fb5 in kvm_cpu_exec (cpu=0x7f17b05b7a20) at >>> /home/qemu/kvm-all.c:1864 >>> #16 0x00007f17ad7db416 in qemu_kvm_cpu_thread_fn (arg=0x7f17b05b7a20) at >>> /home/qemu/cpus.c:972 >>> #17 0x00007f17ac2cbdf5 in start_thread () from /lib64/libpthread.so.0 >>> #18 0x00007f17a73e31ad in clone () from /lib64/libc.so.6 >>> >>> It seems that something wrong happened in vga memory updating. >>> >> >> Another backtrace: >> >> (gdb) bt >> #0 int128_get64 (a=...) at /home/qemu/include/qemu/int128.h:27 >> #1 0x00007f4cdefc1f6a in register_multipage (d=0x7f4cd012f1c0, >> section=0x7f4cd4a562c0) at /home/qemu/exec.c:1215 >> #2 0x00007f4cdefc22b6 in mem_add (listener=0x7f4cdf85d968 >> <address_space_io+72>, section=0x7f4cd4a56600) at /home/qemu/exec.c:1250 >> #3 0x00007f4cdf01248a in address_space_update_topology_pass >> (as=0x7f4cdf85d920 <address_space_io>, old_view=0x7f4cd0028d40, >> new_view=0x7f4cd015f5f0, adding=true) >> at /home/qemu/memory.c:739 >> #4 0x00007f4cdf012570 in address_space_update_topology (as=0x7f4cdf85d920 >> <address_space_io>) at /home/qemu/memory.c:754 >> #5 0x00007f4cdf0126b0 in memory_region_transaction_commit () at >> /home/qemu/memory.c:794 >> #6 0x00007f4cdf0151f0 in memory_region_del_subregion (mr=0x7f4ce01034e0, >> subregion=0x7f4ce13873a0) at /home/qemu/memory.c:1698 >> #7 0x00007f4cdf21761d in pci_update_mappings (d=0x7f4ce1386f70) at >> hw/pci/pci.c:1120 >> #8 0x00007f4cdf2179b0 in pci_default_write_config (d=0x7f4ce1386f70, addr=4, >> val_in=256, l=2) at hw/pci/pci.c:1180 >> #9 0x00007f4cdf28d2d6 in virtio_write_config (pci_dev=0x7f4ce1386f70, >> address=4, val=256, len=2) at hw/virtio/virtio-pci.c:430 >> #10 0x00007f4cdf220746 in pci_host_config_write_common >> (pci_dev=0x7f4ce1386f70, addr=4, limit=256, val=256, len=2) at >> hw/pci/pci_host.c:57 >> #11 0x00007f4cdf22084a in pci_data_write (s=0x7f4ce008afc0, addr=2147489796, >> val=256, len=2) at hw/pci/pci_host.c:84 >> #12 0x00007f4cdf22096c in pci_host_data_write (opaque=0x7f4ce00896b0, >> addr=0, val=256, len=2) at hw/pci/pci_host.c:137 >> #13 0x00007f4cdf0108d2 in memory_region_write_accessor (mr=0x7f4ce0089ab0, >> addr=0, value=0x7f4cd4a56968, size=2, shift=0, mask=65535) at >> /home/qemu/memory.c:430 >> #14 0x00007f4cdf0109db in access_with_adjusted_size (addr=0, >> value=0x7f4cd4a56968, size=2, access_size_min=1, access_size_max=4, >> access=0x7f4cdf01084d <memory_region_write_accessor>, mr=0x7f4ce0089ab0) >> at /home/qemu/memory.c:467 >> #15 0x00007f4cdf013361 in memory_region_dispatch_write (mr=0x7f4ce0089ab0, >> addr=0, data=256, size=2) at /home/qemu/memory.c:1103 >> #16 0x00007f4cdf01627e in io_mem_write (mr=0x7f4ce0089ab0, addr=0, val=256, >> size=2) at /home/qemu/memory.c:2003 >> #17 0x00007f4cdefc5034 in address_space_rw (as=0x7f4cdf85d920 >> <address_space_io>, addr=3324, buf=0x7f4cdef10000 "", len=2, is_write=true) >> at /home/qemu/exec.c:2533 >> #18 0x00007f4cdf00db1f in kvm_handle_io (port=3324, data=0x7f4cdef10000, >> direction=1, size=2, count=1) at /home/qemu/kvm-all.c:1707 >> #19 0x00007f4cdf00e005 in kvm_cpu_exec (cpu=0x7f4ce00eca20) at >> /home/qemu/kvm-all.c:1864 >> #20 0x00007f4cdeff5466 in qemu_kvm_cpu_thread_fn (arg=0x7f4ce00eca20) at >> /home/qemu/cpus.c:972 >> #21 0x00007f4cddae5df5 in start_thread () from /lib64/libpthread.so.0 >> #22 0x00007f4cd8bfd1ad in clone () from /lib64/libc.so.6 >> > > Paolo, do you have any cues? Thanks!
Sorry, I haven't looked at it yet. I'll have to study the code. In the meanwhile, perhaps you can print "section" and "existing" please from gdb? Paolo
