Lidong Chen <jemmy858...@gmail.com> wrote: > if qio_channel_rdma_readv return QIO_CHANNEL_ERR_BLOCK, the destination qemu > crash. > > The backtrace is: > (gdb) bt > #0 0x0000000000000000 in ?? () > #1 0x00000000008db50e in qio_channel_set_aio_fd_handler (ioc=0x38111e0, > ctx=0x3726080, > io_read=0x8db841 <qio_channel_restart_read>, io_write=0x0, > opaque=0x38111e0) at io/channel.c: > #2 0x00000000008db952 in qio_channel_set_aio_fd_handlers (ioc=0x38111e0) > at io/channel.c:438 > #3 0x00000000008dbab4 in qio_channel_yield (ioc=0x38111e0, > condition=G_IO_IN) at io/channel.c:47 > #4 0x00000000007a870b in channel_get_buffer (opaque=0x38111e0, > buf=0x440c038 "", pos=0, size=327 > at migration/qemu-file-channel.c:83 > #5 0x00000000007a70f6 in qemu_fill_buffer (f=0x440c000) at > migration/qemu-file.c:299 > #6 0x00000000007a79d0 in qemu_peek_byte (f=0x440c000, offset=0) at > migration/qemu-file.c:562 > #7 0x00000000007a7a22 in qemu_get_byte (f=0x440c000) at > migration/qemu-file.c:575 > #8 0x00000000007a7c78 in qemu_get_be32 (f=0x440c000) at > migration/qemu-file.c:655 > #9 0x00000000007a0508 in qemu_loadvm_state (f=0x440c000) at > migration/savevm.c:2126 > #10 0x0000000000794141 in process_incoming_migration_co (opaque=0x0) at > migration/migration.c:366 > #11 0x000000000095c598 in coroutine_trampoline (i0=84033984, i1=0) at > util/coroutine-ucontext.c:1 > #12 0x00007f9c0db56d40 in ?? () from /lib64/libc.so.6 > #13 0x00007f96fe858760 in ?? () > #14 0x0000000000000000 in ?? () > > RDMA QIOChannel not implement io_set_aio_fd_handler. so > qio_channel_set_aio_fd_handler will access NULL pointer. > > Signed-off-by: Lidong Chen <lidongc...@tencent.com>
Reviewed-by: Juan Quintela <quint...@redhat.com> queued
