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Re: [Qemu-devel] virtio-scsi + iothread : segfault on drive_del
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] virtio-scsi + iothread : segfault on drive_del |
Date: |
Wed, 01 Apr 2015 12:27:27 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 01/04/2015 05:34, Alexandre DERUMIER wrote:
>
> I'm currently testing virtio-scsi and iothread,
>
> and I'm seeing qemu segfault when I try to remove an scsi drive
> on top of an virtio-scsi controller with iothread enabled.
>
>
> virtio-blk + iothread drive_del is supported since this patch
>
> http://comments.gmane.org/gmane.comp.emulators.qemu/291562
> "block: support drive_del with dataplane
>
> This series makes hot unplug work with virtio-blk dataplane devices. It
> should
> also work with Fam's virtio-scsi dataplane patches."
virtio-scsi + iothread is experimental and not yet thread-safe.
Deadlocks or crashes are expected, and not really fixable without a lot
of preparatory changes to core QEMU code. These are being done, but I
don't expect it to be fixed before 2.5.
Paolo
- Re: [Qemu-devel] virtio-scsi + iothread : segfault on drive_del,
Paolo Bonzini <=