[Hyper-V] hv_netvsc: Fix napi reschedule while receive completion is busy

Bug #1786313 reported by Joshua R. Poulson on 2018-08-09
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-azure (Ubuntu)
Undecided
Unassigned
Bionic
Undecided
Marcelo Cerri

Bug Description

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6b81b193b83e87da1ea13217d684b54fccf8ee8a

hv_netvsc: Fix napi reschedule while receive completion is busy
If out ring is full temporarily and receive completion cannot go out,
we may still need to reschedule napi if certain conditions are met.
Otherwise the napi poll might be stopped forever, and cause network
disconnect.

Fixes: 7426b1a51803 ("netvsc: optimize receive completions")

Marcelo Cerri (mhcerri) wrote :
Changed in linux-azure (Ubuntu Bionic):
assignee: nobody → Marcelo Cerri (mhcerri)
status: New → In Progress
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