Hi Dmitry,
Have you seen any problems with e1000e migration under windows?
I've got a repeatable case where after migration with e1000e windows
hangs/almost hangs.
I'm seeing the e1000e generate interrupts at a very very high
rate (maybe ~1000 second ish?) after migration.
Some versions of qemu do it and some dont, but my attempts
at bisection lead me to code that should be irrelevant.
Prior to migration I see:
36461@1494504466.711929:e1000e_irq_pending_interrupts ICR PENDING: 0x100000
(ICR: 0x80100082, IMS: 0x1f00004)
36461@1494504466.711992:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR:
0x80000082, IMS: 0x1a00004)
36461@1494504466.712076:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR:
0x80000082, IMS: 0x1f00004)
36461@1494504466.712245:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR:
0x80000082, IMS: 0x1a00004)
36461@1494504466.712332:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR:
0x80000082, IMS: 0x1f00004)
which I think the ICR means:
31 - int asserted
20 - RxQ0 - receive queue 0 interrupt
7 - RXT0 - receiver timer interrupt
1 - TXQE - Transmit Queue empty
after migration it varies more, I'm seeing mostly:
21977@1494504516.320707:e1000e_irq_pending_interrupts ICR PENDING: 0x1000000
(ICR: 0x815000c2, IMS: 0x1a00004)
31 - int asserted
24 - 'Other'
22 - TxQ0 interrupt
20 - RxQ0 interrupt
07 - RXT0 Receiver timer interrupt
06 - RX0 - Receiver overrun
01 - TXQE - Transmit queue empty
For reference this is https://bugzilla.redhat.com/show_bug.cgi?id=1447935
Dave
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
