[Xen-bugs] [Bug 582] New: Multiple console sessions for guest host not s
Summary: Multiple console sessions for guest host not
When two administrators access a guest domain's console, only the first has to
authenticate (second piggybacks on auth of first which could be a security issue
in and of itself). If both admins perform a "ps", they will see they are in the
same shell process, however they are unable to view actions performed by one
This may result in human-induced outages if multiple parties are trying to fix
an issue on a guest domain and don't see that others are attempting to perform
actions in the same environment.
Synchronize IO across multiple console sessions or provide console-locking
functionality such that only one user may provide input at a time (even if
others are allowed to observe).
I built a vanilla FC5 system and loaded the Xen components. I then followed the
setup directions at http://fedoraproject.org/wiki/FedoraXenQuickstartFC5 for the
build. This problem should exist in any Xen build up to the current version
(3.0.1) though I can't speak for the Windows guest port.
After starting the guest domain, open two shells on dom0 and perform a "xm
console <guest>" in each.
Authenticating in one grants shell access for each.
Perform a "ps" in each console. Shell will have the same process number.
Results of each ps command will ony be visible in the console in which it was
I confirmed this in both x86 and x86_64.
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