OK, thanks to Giuseppe's troubleshooting and help, I think we have gotten this iscsi issue fixed.
There is now a new kernel-4.9.37-29.el7 (and el6) kernel in the testing repo.
Please test this kernel and provide feedback so we can release it.
The only change is to turn off: CONFIG_IO_STRICT_DEVMEM (and of course the upgrade to 4.9.37).
Thanks, Johnny Hughes
On 06/30/2017 11:03 AM, Giuseppe Tanzilli - Serverplan wrote:
Hi, I tried this new kernel on out xen testbed with centos 6 and iscsi over qlog 57810 is not working, tried replacing drivers from manufacturer but does not work either.
tried 4.9.23 from repo and is not working
finally the old 4.9.13-22.el6.x86_64 is the only one from 4.9.x taht is working with hw iscsi on this cards.
I will be happy to help debug the issue and get a latest kernel working with iscsi .
thanks, Giuseppe
On 27/06/2017 16:40, Johnny Hughes wrote:
OK Guys and Gals,
We have just kicked off a build of the 4.9.34-29 xen kernel on the Community Build Service for both EL6 and EL7.
This kernel has some important things in it.
- It has a patch for the stack guard issue (CVE-2017-1000364). Also
the patch for Xen Security fix XSA-216.
See these upstream changelogs for ALL kernel commits from 4.9.31 to 4.9.34:
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.32 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.33 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.34
- It has a fix for the xen-netback rate limit queues
(http://www.spinics.net/lists/netdev/msg441578.html) (Thanks very much to Kevin Stange and Jean-Louis Dupond for finding a fix for this issue)
- It now contains debuginfo files (thanks to Sarah Newman for this
amazing addition!).
=====================
The kernels are currently building, it will likely take 4 to 6 hours for them to make their way to the applicable testing repos:
CentOS-7: https://buildlogs.centos.org/centos/7/virt/x86_64/xen-46/
or
CentOS-6: https://buildlogs.centos.org/centos/6/virt/x86_64/xen-44/ https://buildlogs.centos.org/centos/6/virt/x86_64/xen-46/
=====================
If you actually need the debuginfo files, they will be here (also in 4 or so hours):
CentOS-7: http://cbs.centos.org/repos/virt7-xen-common-testing/x86_64/debug/
CentOS-6: http://cbs.centos.org/repos/virt6-xen-common-testing/x86_64/debug/
=====================
Let's do some real testing of these and see if we can solve the issues people are having .. this should already solve server and the debuginfo files should help solve others.
I think Kevin and Jean-Louis also know how to solve the Windows BSOD when run on a Xen 4.9.x dom0 server .. they can comment here. Hopefully whoever maintains the newer Windows drivers will fix the ACPI / APIC issues and no work around will be necessary soon(ish).
I also want to personally (and publicly) thank Kevin, Jean-Louis, and Sarah for the substantial work and the community collaboration. This is EXACTLY what we need for the Virt SIG .. people solving problems and doing github pull requests so we can, together as a group, get these projects working much better.
If someone else wants to help us with the Kernel .. or Xen .. here are our github branches:
https://github.com/CentOS-virt7/xen-kernel
https://github.com/CentOS-virt7/xen
Fork them .. work on them .. talk to us on #centos-virt in freenode or on this mailing list .. then once we are all happy, you can submit a pull request and we'll get your issues fixed.
Thanks, Johnny Hughes
CentOS-virt mailing list CentOS-virt@centos.org https://lists.centos.org/mailman/listinfo/centos-virt
--
Giuseppe Tanzilli Serverplan
CentOS-virt mailing list CentOS-virt@centos.org https://lists.centos.org/mailman/listinfo/centos-virt