Bug 1006384 - Hot-unplugging a device does not remove it from the "devices boot order" list
Summary: Hot-unplugging a device does not remove it from the "devices boot order" list
Keywords:
Status: CLOSED DUPLICATE of bug 1086603
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: x86_64
OS: Linux
unspecified
low
Target Milestone: rc
: ---
Assignee: Marcel Apfelbaum
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-09-10 14:21 UTC by Marcel Apfelbaum
Modified: 2014-07-13 13:17 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-07-13 13:17:07 UTC
Target Upstream Version:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 771545 0 low CLOSED qemu should give friendly messages instead of quitting when Hot-plugging two devices with the same bootindex values 2021-02-22 00:41:40 UTC

Internal Links: 771545

Description Marcel Apfelbaum 2013-09-10 14:21:01 UTC 
Description of problem:
Hot-Unplugging of a device with bootindex > 0 does not remove it from
the fw_boot_order. The outcome is that when trying to hot-plug another
device with the same boot index, it will fail. 

Version-Release number of selected component (if applicable):
All

How reproducible:
100%

Steps to Reproduce:
1. device_add e1000,id=my_net_dev,bootindex=3
2. device_del my_ned_dev
3. device_add e1000,id=other_device,bootindex=3

Actual results:
qemu quits with the message:
Two devices with same boot index 3

Expected results:
Hot-Plugging should finish successfully.

Additional info:
Comment 2 Marcel Apfelbaum 2013-09-16 10:22:55 UTC 
The boot order is passed in fw cfg and updated only once at
"machine done". There is no update of this list after this point.
Modifying the boot order from monitor does not work at all.
 
 So in order to solve this issue we can:
 1. Don't allow use of bootindex at hot-plug
 2. Change the architecture so boot order changing during hot-plug will be possible

Currently discussed upstream
Comment 5 Ronen Hod 2014-07-13 13:17:07 UTC 

*** This bug has been marked as a duplicate of bug 1086603 ***
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