Re: [Qemu-devel] Reproducible crash on PCIe hotplug

[Markus Armbruster]

Eduardo Habkost <address@hidden> writes:

> Using latest qemu.git master:
>
>   $ qemu-system-x86_64 -machine q35 -readconfig docs/q35-chipset.cfg -monitor 
> stdio
>   QEMU 2.7.93 monitor - type 'help' for more information
>   (qemu) device_add e1000e,bus=ich9-pcie-port-4,addr=00
>   (qemu) device_add e1000e,bus=ich9-pcie-port-4,addr=08
>   Segmentation fault (core dumped)

Bisected to

commit 3f1e1478db2d67098d98f2c3acf5a4946b7fb643
Author: Cao jin <address@hidden>
Date:   Wed Oct 28 14:20:31 2015 +0800

    enable multi-function hot-add
    
    Enable PCIe device multi-function hot-add, just ensure function 0 is added
    last, then driver will get the notification to scan the slot.
    
    Signed-off-by: Cao jin <address@hidden>
    Reviewed-by: Michael S. Tsirkin <address@hidden>
    Signed-off-by: Michael S. Tsirkin <address@hidden>

It's in v2.5.0, probably no need to hold the release for a fix.