On 03/04/2016 21:59, Christian Borntraeger wrote: > Thread 1 (Thread 0x3ffad25bb90 (LWP 41685)): > ---Type <return> to continue, or q <return> to quit--- > #0 0x000003ffab5be2c0 in raise () at /lib64/libc.so.6 > #1 0x000003ffab5bfc26 in abort () at /lib64/libc.so.6 > #2 0x000003ffab5b5bce in __assert_fail_base () at /lib64/libc.so.6 > #3 0x000003ffab5b5c5c in () at /lib64/libc.so.6 > #4 0x00000000800b79e4 in virtio_blk_data_plane_start (s=0x80b195a0) at > /home/cborntra/REPOS/qemu/hw/block/dataplane/virtio-blk.c:210 > #5 0x00000000800b57ba in virtio_blk_handle_output (vdev=0x80e4b0f8, > vq=0x80eaa180) at /home/cborntra/REPOS/qemu/hw/block/virtio-blk.c:607 > #6 0x00000000800f0d74 in virtio_queue_notify_vq (vq=0x80eaa180) at > /home/cborntra/REPOS/qemu/hw/virtio/virtio.c:1108 > #7 0x00000000800f376c in virtio_queue_host_notifier_read (n=0x80eaa1e0) at > /home/cborntra/REPOS/qemu/hw/virtio/virtio.c:1820 > #8 0x00000000800f381c in virtio_queue_set_host_notifier_fd_handler > (vq=0x80eaa180, assign=false, set_handler=false) at > /home/cborntra/REPOS/qemu/hw/virtio/virtio.c:1836 > #9 0x000000008010b808 in virtio_ccw_set_guest2host_notifier (dev=0x80e49fb0, > n=0, assign=false, set_handler=false) at > /home/cborntra/REPOS/qemu/hw/s390x/virtio-ccw.c:98 > #10 0x000000008010baaa in virtio_ccw_stop_ioeventfd (dev=0x80e49fb0) at > /home/cborntra/REPOS/qemu/hw/s390x/virtio-ccw.c:155 > #11 0x000000008010f162 in virtio_ccw_set_host_notifier (d=0x80e49fb0, n=0, > assign=true) at /home/cborntra/REPOS/qemu/hw/s390x/virtio-ccw.c:1212 > #12 0x00000000800b7ab0 in virtio_blk_data_plane_start (s=0x80b195a0) at > /home/cborntra/REPOS/qemu/hw/block/dataplane/virtio-blk.c:225 > #13 0x00000000800b57ba in virtio_blk_handle_output (vdev=0x80e4b0f8, > vq=0x80eaa180) at /home/cborntra/REPOS/qemu/hw/block/virtio-blk.c:607 > #14 0x00000000800f0d74 in virtio_queue_notify_vq (vq=0x80eaa180) at > /home/cborntra/REPOS/qemu/hw/virtio/virtio.c:1108 > #15 0x00000000800f376c in virtio_queue_host_notifier_read (n=0x80eaa1e0) at > /home/cborntra/REPOS/qemu/hw/virtio/virtio.c:1820 > #16 0x00000000802f1a0c in aio_dispatch (ctx=0x80abae30) at > /home/cborntra/REPOS/qemu/aio-posix.c:327 > #17 0x00000000802df4d4 in aio_ctx_dispatch (source=0x80abae30, callback=0x0, > user_data=0x0) at /home/cborntra/REPOS/qemu/async.c:233 > #18 0x000003ffabfd1c0a in g_main_context_dispatch () at > /lib64/libglib-2.0.so.0 > #19 0x00000000802ee70e in glib_pollfds_poll () at > /home/cborntra/REPOS/qemu/main-loop.c:213 > #20 0x00000000802ee84a in os_host_main_loop_wait (timeout=1472000000) at > /home/cborntra/REPOS/qemu/main-loop.c:258 > #21 0x00000000802ee956 in main_loop_wait (nonblocking=0) at > /home/cborntra/REPOS/qemu/main-loop.c:506 > #22 0x000000008017dc0c in main_loop () at /home/cborntra/REPOS/qemu/vl.c:1934 > #23 0x00000000801860e0 in main (argc=72, argv=0x3ffd60fe838, > envp=0x3ffd60fea80) at /home/cborntra/REPOS/qemu/vl.c:4652
This will be fixed by Cornelia's rework, and is an example of why I think patch 1/9 is a good idea (IOW, assign=false is harmful). Thanks, Paolo
