* Yuchen (yu.c...@h3c.com) wrote: > When migrate vm and vm’s disks target host qemu crash due to an invalid free. > > #0 object_unref (obj=0x1000) at > /qemu-2.12/rpmbuild/BUILD/qemu-2.12/qom/object.c:920 > #1 0x0000560434d79e79 in memory_region_unref (mr=<optimized out>) > at /qemu-2.12/rpmbuild/BUILD/qemu-2.12/memory.c:1730 > #2 flatview_destroy (view=0x560439653880) at > /qemu-2.12/rpmbuild/BUILD/qemu-2.12/memory.c:292 > #3 0x000056043514dfbe in call_rcu_thread (opaque=<optimized out>) > at /qemu-2.12/rpmbuild/BUILD/qemu-2.12/util/rcu.c:284 > #4 0x00007fbc2b36fe25 in start_thread () from /lib64/libpthread.so.0 > #5 0x00007fbc2b099bad in clone () from /lib64/libc.so.6 > > test base qemu-2.12.0，but use lastest qemu(v6.0.0-rc2) also reproduce.
Interesting. > As follow patch can resolve this problem: > https://lists.gnu.org/archive/html/qemu-devel/2018-07/msg02272.html That's a pci/rcu change; ccing Paolo and Micahel. > Steps to reproduce: > (1) Create VM (virsh define) > (2) Add 64 virtio scsi disks Is that hot adding the disks later, or are they included in the VM at creation? Can you provide a libvirt XML example? > (3) migrate vm and vm’disks What do you mean by 'and vm disks' - are you doing a block migration? Dave > ------------------------------------------------------------------------------------------------------------------------------------- > 本邮件及其附件含有新华三集团的保密信息，仅限于发送给上面地址中列出 > 的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、 > 或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本 > 邮件！ > This e-mail and its attachments contain confidential information from New > H3C, which is > intended only for the person or entity whose address is listed above. Any use > of the > information contained herein in any way (including, but not limited to, total > or partial > disclosure, reproduction, or dissemination) by persons other than the intended > recipient(s) is prohibited. If you receive this e-mail in error, please > notify the sender > by phone or email immediately and delete it! -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
