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Date: Tue, 12 Sep 2017 16:09:43 +0500
From: Roman Mamedov <rm@romanrm.net>
To: Adam Borowski <kilobyte@angband.pl>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: qemu-kvm VM died during partial raid1 problems of btrfs
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On Tue, 12 Sep 2017 12:32:14 +0200
Adam Borowski <kilobyte@angband.pl> wrote:

> discard in the guest (not supported over ide and virtio, supported over scsi
> and virtio-scsi)

IDE does support discard in QEMU, I use that all the time.

It got broken briefly in QEMU 2.1 [1], but then fixed again.

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=757927


-- 
With respect,
Roman