On 03/17/2016 03:37 PM, Sameeh Jubran wrote: > This patch series introduces an upper bound for the number of interrupts > per second. This feature is supported by the real hardware, however up > until now it wasn't implemented in e1000. This feature is very > significant, it can prevent an interrupt storm by giving the driver > a bounded inter-interrupt interval to handle interrupts. > > This patch was made after observing an interrupt storm in Windows 10 > when disabling e1000. > > How reproducible: > > Steps to reproduce: > 1. Start Win 10 guest with e1000 device. > 2. Go to device manager and try to disable and enable the device. > 3. After several enable/disable to the device the guest hangs when > the device is being disabled. > > Actual results: > Guest hang after click OK button. > > Expected results: > Device is disabled. > > After applying the patch the guest no longer hangs, and an Iperf test > ran successfully. > > Sameeh Jubran (2): > e1000: Fixing interrupts pace. > Revert "e1000: fix hang of win2k12 shutdown with flood ping" > > hw/net/e1000.c | 13 ++++++++----- > 1 file changed, 8 insertions(+), 5 deletions(-) >
Applied. Thanks Sameeh
