[F][PATCH 0/2] virtio-blk hw queue gets possibly permanently stopped when swiotlb full (LP: 1867109)

[frank.heimes at canonical.com]

Buglink: https://bugs.launchpad.net/bugs/1867109

virtio-blk hardware queue gets possibly permanently stopped when swiotlb is full.
For example, with a PV guest choose a small swiotlb (30MB) and create IO load on several virtio-blk disks simultaneously.
It actually should not matter what causes the swiotlb pressure (can be virtio-net as well).

Halil Pasic (2):
  From: Halil Pasic <pasic at linux.ibm.com>
  From: Halil Pasic <pasic at linux.ibm.com>

 drivers/block/virtio_blk.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

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2.25.0