The qemu version is 2.9.0 release. The 'irq_count' and 'irq_state' are sent by private vm, and loaded by secondary vm. When they sent by private vm, they maybe not in a consistent state. So sometimes 'bus->irq_count[i]' becomes '-1' on secondary vm. I deleted the assertions and then tested it several times, it worked well
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1702621 Title: colo: secondary vm crash during loadvm Status in QEMU: New Bug description: Following document 'COLO-FT.txt', I test colo feature on my hosts. It seems goes well. But after a while the secondary vm crash. The stack is as follows: #0 0x00007f191456dc37 in raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007f1914571028 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007f1914566bf6 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #3 0x00007f1914566ca2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6 #4 0x0000564154ad9147 in pcibus_reset (qbus=0x564156760d10) at ../hw/pci/pci.c:311 #5 0x0000564154a07cdb in qbus_reset_one (bus=0x564156760d10, opaque=0x0) at hw/core/qdev.c:319 #6 0x0000564154a0d721 in qbus_walk_children (bus=0x564156760d10, pre_devfn=0, pre_busfn=0, post_devfn=0x564154a07c26 <qdev_reset_one>, post_busfn=0x564154a07c6c <qbus_reset_one>, opaque=0x0) at hw/core/bus.c:68 #7 0x0000564154a08b4d in qdev_walk_children (dev=0x56415675f2b0, pre_devfn=0, pre_busfn=0, post_devfn=0x564154a07c26 <qdev_reset_one>, post_busfn=0x564154a07c6c <qbus_reset_one>, opaque=0x0) at hw/core/qdev.c:617 #8 0x0000564154a0d6e5 in qbus_walk_children (bus=0x564156594d30, pre_devfn=0, pre_busfn=0, post_devfn=0x564154a07c26 <qdev_reset_one>, post_busfn=0x564154a07c6c <qbus_reset_one>, opaque=0x0) at hw/core/bus.c:59 #9 0x0000564154a07df5 in qbus_reset_all (bus=0x564156594d30) at hw/core/qdev.c:336 #10 0x0000564154a07e3a in qbus_reset_all_fn (opaque=0x564156594d30) at hw/core/qdev.c:342 #11 0x0000564154a0e222 in qemu_devices_reset () at hw/core/reset.c:69 #12 0x00005641548b3b47 in pc_machine_reset () at /vms/git/qemu/hw/i386/pc.c:2234 #13 0x0000564154972ca7 in qemu_system_reset (report=false) at vl.c:1697 #14 0x0000564154b9d007 in colo_process_incoming_thread (opaque=0x5641553c1280) at migration/colo.c:617 #15 0x00007f1914907184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #16 0x00007f1914634bed in clone () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) frame 4 #4 0x0000564154ad9147 in pcibus_reset (qbus=0x564156760d10) at ../hw/pci/pci.c:311 warning: Source file is more recent than executable. 311 assert(bus->irq_count[i] == 0); (gdb) ^CQuit (gdb) p bus->irq_count[i] $1 = -1 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1702621/+subscriptions
