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[Qemu-devel] Re: [PATCH] kvm: Fix overlapping check for memory slots

From: Avi Kivity
Subject: [Qemu-devel] Re: [PATCH] kvm: Fix overlapping check for memory slots
Date: Mon, 13 Apr 2009 12:32:48 +0300
User-agent: Thunderbird (X11/20090320)

Jan Kiszka wrote:
This nice little buglet complicates a smarter slot management in qemu
user space just "slightly". Sigh...


When checking for overlapping slots on registration of a new one, kvm
currently also considers zero-length (ie. deleted) slots and rejects
requests incorrectly. This finally denies user space from joining slots.
Fix the check by skipping deleted slots.

Can userspace fail gracefully when the bug is present? If not, the you should add a KVM_CAP_ to advertise the fix; without the capability don't attempt the smarter slot management.

error compiling committee.c: too many arguments to function

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