Uri Lublin wrote:
There is still the mystery of different file sizes for different
migration-exec commands, all files are valid saved image.
It seems to me that some unmodified pages are being marked as dirty, and
are being saved twice (and later loaded twice).
I'm still chasing that.
Hi
I wrote
I looked into this a bit more and it seems that a big piece of
migration.c is missing or broken.
..
Am I missing something?
Yes, I am. Sorry, I missed the qemu_live_savevm_state call, which
saves the rest of the dirty pages, and explains why some migration
images are larger than
Thanks for the patches.
There is still the mystery of different file sizes for different
migration-exec commands, all files are valid saved image.
It seems to me that some unmodified pages are being marked as dirty, and
are being saved twice (and later loaded twice).
I'm still chasing that.
I've never encountered that problem.
I haven't used exec migration protocol too many times though.
I have not used libvirt too many times either.
I'll look into it too.
Thanks,
Uri.
Jim Paris wrote:
I wrote:
It's almost as if migrate_write() is being called after
migrate_finish() ??
I think I've (finally!) tracked it down. See the attached patches.
The main problem is this: when using -monitor pty, all incoming
commands are terminated with CRLF even though they were sent with just
LF, probably because of the pty layer somewhere. When qemu's readline
gets CR and LF without
I wrote:
It's almost as if migrate_write() is being called after
migrate_finish() ??
Yes, I'm definitely seeing this -- migrate_finish followed by
migrate_write, which causes a segfault (and explains my truncated
images). Unfortunately I'm not at all familiar with this code, and
all the qemu
I wrote:
migrate exec:dd of=STATEFILE
... I was having trouble getting this to work (loading gave
Migration failed rc=233) and discovered that not all of the data
was being saved, probably because of some buffering/pipe issues.
Actually, maybe that isn't the issue. I guess the migration
http://kvm.qumranet.com/kvmwiki/Migration suggests to use
stop
migrate exec:dd of=STATEFILE
to save an image that can be loaded later. I was having trouble
getting this to work (loading gave Migration failed rc=233) and
discovered that not all of the data was being saved, probably because
