[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [qemu-s390x] [Qemu-devel] [PATCH v4 1/6] vfio-ccw: make it safe to a

From: Eric Farman
Subject: Re: [qemu-s390x] [Qemu-devel] [PATCH v4 1/6] vfio-ccw: make it safe to access channel programs
Date: Thu, 11 Apr 2019 17:27:42 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

On 4/10/19 10:59 PM, Eric Farman wrote:

On 4/9/19 7:34 PM, Halil Pasic wrote:
On Mon, 8 Apr 2019 19:07:47 +0200


I'm just running fio on a pass-through DASD and on some virto-blk disks
in parallel. My QEMU is today's vfio-ccw-caps from your repo.

I see stuff like this:
qemu-git: vfio-ccw: wirte I/O region failed with errno=16[1811/7332/0 iops] [eta 26m:34s]

Without knowing what the I/O was that failed, this is a guessing game. But I encountered something similar just now running fio.

2019-04-11T02:06:09.524838Z qemu-system-s390x: vfio-ccw: wirte I/O region failed with errno=16


From the associated I/O, I think this is fixed by a series I am nearly ready to send for review.  I'll try again with those fixes on top of the two series here, and report back.

So, I've run enough combinations to feel comfortable saying that the error (EBUSY) I saw last night (and presumably the one Halil saw) exists in today's code and is not introduced by this series. It also appears to be addressed by one of the patches in a series I'm working on, but which that series still has some further problems. Sigh, there are too many branches and too many interrupts.

 - Eric

reply via email to

[Prev in Thread] Current Thread [Next in Thread]