Back to bug 1372174

Who When What Removed Added
weliao 2016-09-01 06:32:23 UTC Priority unspecified medium
Hardware Unspecified x86_64
OS Unspecified Linux
Severity unspecified medium
lijin 2016-09-01 06:53:32 UTC CC yvugenfi
Amnon Ilan 2016-09-01 22:32:49 UTC Assignee ailan yvugenfi
Amnon Ilan 2016-09-15 08:52:11 UTC CC ailan
Yvugenfi 2016-10-19 14:35:30 UTC Status NEW POST
lijin 2016-12-14 08:22:43 UTC Blocks 1401400
Ademar Reis 2017-01-04 17:59:48 UTC Blocks 1395265
Ademar Reis 2017-01-04 18:07:21 UTC Blocks 1395265
Yu Wang 2017-01-12 02:39:25 UTC Status POST VERIFIED
CC wyu
Yvugenfi 2017-01-12 09:21:59 UTC Blocks 1411596
Libor Miksik 2017-06-08 06:41:27 UTC CC lmiksik
lijin 2017-06-27 05:52:45 UTC Doc Text Cause: OS allocates just one MSIX vector if it can't allocate all the vectors supported by the device.

Consequence: driver fails to start,network doesn't work

Fix: Allow to work with single MSIX vector (fallback mode).

Result: driver can start normally and network works fine
Doc Type If docs needed, set a value Bug Fix
Jiri Herrmann 2017-07-03 13:58:24 UTC CC jherrman
Doc Text Cause: OS allocates just one MSIX vector if it can't allocate all the vectors supported by the device.

Consequence: driver fails to start,network doesn't work

Fix: Allow to work with single MSIX vector (fallback mode).

Result: driver can start normally and network works fine
Previously, on Windows guests with a high number of operation queues, the virtio-win-prewhql driver failed to start, which disabled the guest network. With this update, Windows guests now handle being allocated with only a single message-signaled interrupts X (MSIX) vector, which ensures the virtio-win-prewhql driver starts properly, and thus prevents the described problem.
errata-xmlrpc 2017-08-01 04:17:05 UTC Status VERIFIED RELEASE_PENDING
errata-xmlrpc 2017-08-01 12:53:08 UTC Status RELEASE_PENDING CLOSED
Resolution --- ERRATA
Last Closed 2017-08-01 08:53:08 UTC

Back to bug 1372174