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

…