qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] fw cfg files cross-version migration races


From: Gerd Hoffmann
Subject: Re: [Qemu-devel] fw cfg files cross-version migration races
Date: Tue, 02 Jun 2015 09:11:14 +0200

  Hi,

> I guess the only reason this isn't a problem is that nobody currently
> attempts to access fw_cfg after a migration ? :)

Accessing fw_cfg after migration is fine.  Problem is this ...

  (1) read directory
  (2) migrate
  (3) read file

... in case the file ordering happens to be different on the destination
host due to initialization order changes.

So, sorting entries (and the index assigned too) should fix this, right?
That looks easiest to me.

cheers,
  Gerd




reply via email to

[Prev in Thread] Current Thread [Next in Thread]