qemu-e2k/migration
Dr. David Alan Gilbert 3fd3c4b37c Fix xbzrle vs last_sent_block update
My fix (84e7b80a) replaced the last_sent_block update that I'd
removed earlier; however it was too aggressive in the xbzrle case.

save_xbzrle_page might return '0' to mean that the page didn't
need sending since it was the same as the last sent version;
in this case we can't update 'last_sent_block' since we didn't
actually send it.

Symptom: 'Illegal RAM offset 1018000' as we try and send a page
        to the wrong RAMBlock;  potentially that could be a data
        corruption if you were really unlucky.

Fixes: 84e7b80a05

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-id: 1449765106-6528-1-git-send-email-dgilbert@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-12-11 12:51:27 +00:00
..
block.c block-migration: limit the memory usage 2015-11-25 15:27:28 +01:00
exec.c Change qemu_set_fd_handler2(..., NULL, ...) to qemu_set_fd_handler 2015-06-12 13:26:21 +01:00
fd.c Change qemu_set_fd_handler2(..., NULL, ...) to qemu_set_fd_handler 2015-06-12 13:26:21 +01:00
Makefile.objs postcopy: OS support test 2015-11-10 15:00:26 +01:00
migration.c migration: do floating-point division 2015-12-03 00:03:00 +01:00
postcopy-ram.c Assume madvise for (no)hugepage works 2015-11-25 15:27:28 +01:00
qemu-file-buf.c coroutine: move into libqemuutil.a library 2015-10-20 14:59:04 +01:00
qemu-file-internal.h Split struct QEMUFile out 2014-12-16 17:47:36 +05:30
qemu-file-stdio.c coroutine: move into libqemuutil.a library 2015-10-20 14:59:04 +01:00
qemu-file-unix.c migration: Clean up use of g_poll() in socket_writev_buffer() 2015-12-03 00:03:00 +01:00
qemu-file.c Return path: Open a return path on QEMUFile for sockets 2015-11-10 14:51:49 +01:00
ram.c Fix xbzrle vs last_sent_block update 2015-12-11 12:51:27 +00:00
rdma.c migration: Make 32bit linux compile with RDMA 2015-11-12 17:52:29 +01:00
savevm.c migration: normalize locking in migration/savevm.c 2015-11-19 11:50:00 +01:00
tcp.c Change qemu_set_fd_handler2(..., NULL, ...) to qemu_set_fd_handler 2015-06-12 13:26:21 +01:00
unix.c Change qemu_set_fd_handler2(..., NULL, ...) to qemu_set_fd_handler 2015-06-12 13:26:21 +01:00
vmstate.c vmstate: Create optional sections 2015-07-07 14:54:52 +02:00
xbzrle.c