[Bug 1842787] Re: Writes permanently hang with very heavy I/O on virtio-scsi - worse on virtio-blk

2019-10-09 Thread Stefan Hajnoczi
Thanks for updating us on this issue, which turned out not to be a QEMU bug. ** Changed in: qemu Status: New => Invalid -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1842787 Title: Writes

[Bug 1842787] Re: Writes permanently hang with very heavy I/O on virtio-scsi - worse on virtio-blk

2019-09-21 Thread James Harvey
Apologies, it looks like I ran into two separate bugs, one with XFS, and one with BTRFS, that had the same symptom, initially making me to think this must be a QEMU issue. Using blktrace, I was able to see within the VM, that the virtio block device wasn't getting the writes that were going into

Re: [Qemu-devel] [Bug 1842787] Re: Writes permanently hang with very heavy I/O on virtio-scsi - worse on virtio-blk

2019-09-12 Thread Stefan Hajnoczi
On Thu, Sep 05, 2019 at 03:42:03AM -, James Harvey wrote: > ** Description changed: > > Up to date Arch Linux on host and guest. linux 5.2.11. QEMU 4.1.0. > Full command line at bottom. > > Host gives QEMU two thin LVM volumes. The first is the root filesystem, > and the second

[Qemu-devel] [Bug 1842787] Re: Writes permanently hang with very heavy I/O on virtio-scsi - worse on virtio-blk

2019-09-04 Thread James Harvey
** Description changed: Up to date Arch Linux on host and guest. linux 5.2.11. QEMU 4.1.0. Full command line at bottom. Host gives QEMU two thin LVM volumes. The first is the root filesystem, and the second is for heavy I/O, on a Samsung 970 Evo 1TB. When maxing out the I/O on

[Qemu-devel] [Bug 1842787] Re: Writes permanently hang with very heavy I/O on virtio-scsi - worse on virtio-blk

2019-09-04 Thread James Harvey
** Description changed: Up to date Arch Linux on host and guest. linux 5.2.11. QEMU 4.1.0. Full command line at bottom. Host gives QEMU two thin LVM volumes. The first is the root filesystem, and the second is for heavy I/O, on a Samsung 970 Evo 1TB. When maxing out the I/O on