FS#35980 - [linux] 3.9.8-1 - 3.10.x Kernel Panic with qemu-kvm and pci-passthrough

Attached to Project: Arch Linux
Opened by Arnaud Sautaux (cretingame) - Saturday, 29 June 2013, 21:32 GMT
Last edited by Tobias Powalowski (tpowa) - Tuesday, 08 October 2013, 13:52 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

I use qemu-kvm every day with a amd radeon graphic card and a usb 3 pci adapter. Normally it works without kernel panic. After a update to linux 3.9.8-1. I can't use pci-passthrough without kernel panic.

To fix this bug. I rolled back to linux 3.9.4-1-ARCH (64 bit).

The virtual machin has windows 7 x64.

Steps to reproduce:

Do a update to 3.9.8-1.
Launch a virtual machin with kvm and a host pci device dedicated.
Wait 3 second and it do a kernel panic.
   dmesg.log (72 KiB)
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Tuesday, 08 October 2013, 13:52 GMT
Reason for closing:  Fixed
Additional comments about closing:  3.11.x
Comment by Gerardo Exequiel Pozzi (djgera) - Saturday, 29 June 2013, 23:23 GMT
  • Field changed: Summary ([linux 3.9.8-1] Kernel Panic with qemu-kvm and pci-passthrough → [linux] 3.9.8-1 Kernel Panic with qemu-kvm and pci-passthrough)
  • Field changed: Status (Unconfirmed → Waiting on Response)
  • Field changed: Category (Packages: Core → Upstream Bugs)
  • Field changed: Severity (High → Medium)
  • Task assigned to Thomas Bächler (brain0), Tobias Powalowski (tpowa)
Please report to upstream. Thanks.
Comment by Fabian Zimmermann (devfaz) - Monday, 01 July 2013, 17:03 GMT
I'm affected, too. Just created bug-report upstream: https://bugzilla.kernel.org/show_bug.cgi?id=60271
Comment by Fabian Zimmermann (devfaz) - Friday, 12 July 2013, 13:05 GMT
Short update:

Add "vhost_net.experimental_zcopytx=0" to kernel-cmdline to avoid the issue.
Comment by Fabian Zimmermann (devfaz) - Sunday, 21 July 2013, 15:40 GMT
Problem is fixed in 3.11-rc1
Comment by Tobias Powalowski (tpowa) - Tuesday, 30 July 2013, 10:39 GMT
Status on 3.10.x?
Comment by Fabian Zimmermann (devfaz) - Friday, 02 August 2013, 18:46 GMT
Bug is still in 3.10.3-1-ARCH
Comment by Tobias Powalowski (tpowa) - Tuesday, 17 September 2013, 08:02 GMT
Status on 3.11.1?

Loading...