I would like to know your opinion about adding copy of /proc/cpuinfo file to ABRT bug reports
as there are crashes related to HW acceleration. (https://github.com/abrt/abrt/issues/1171)
Would you find it useful?
And would you find useful adding of some information from cpuinfo to faf (abrt server) reports?
(to filter on) and if so, which? Maybe "flags" field?
Or maybe easier to answer question would be:
Could such message have another form than following?
"Kernel panic - not syncing: * [Mm]achine [Cc]heck"
----- Original Message -----
From: "Julius Milan" <jmilan(a)redhat.com>
To: kernel(a)lists.fedoraproject.org, kernel-faq-list(a)redhat.com
Sent: Monday, 10 April, 2017 11:54:58 AM
Subject: Question about fatal mce messages
Hi kernel hackers
I am working on ABRT, we are processing also error messages from kernel and need to filter out
fatal mce-s from all other kernel panics.
I found that fatal mce prints this message:
"Kernel panic - not syncing: Fatal Machine check"
"Kernel panic - not syncing: Machine check", according to (https://www.halobates.de/supp-mce.pdf)
Are there any other messages fatal mce may produce?
Thanks & Best Regards
Here is my askfedora post that didn't receive any reply.
Description of the problem:
In a network test setup, FC-23 (kernel-4.8) acts as bridge passing network traffic. TCP iperf tests are done from external (to the hypervisor) servers and clients for throughput 700Mbps. The bridge setup on the hypervisor is done through openvswitch and the VM relies on those bridge to pass traffic. Number of CPU core assigned to the FC VM is 2.
Two test cases considered:
#1) irqbalance not running
#2) irqbalance running
For test#1, CPU usage seen for the qemu-pid on the hypervisor stays close to 100%
For test#2, CPU usage seen for the qemu-pid on the hypervisor goes to 200%, sometimes even more.
For test#1, `smp_affinity` uses default value 3, where as for #2, it uses different values for three different virtio-input interrupts, 1,1,2.
Question is, why turning on irqbalance (default for FC installation) makes it worse ?
BZ here - https://bugzilla.redhat.com/show_bug.cgi?id=1438069
Wondering, though, if this is expected behavior, and I need to do
something specific to enable larger frames on an OVS bridge with kernel
Ian Pilcher arequipeno(a)gmail.com
-------- "I grew up before Mark Zuckerberg invented friendship" --------