Hello.
Yes, Mr. Kamal Mostafa is right. Linux kernel v4.4.0-123.147 will
contain a fix for all of these issues with, for example,
'/var/log/syslog' flooding with 'ibrs_dump', 'use_ibrs/ibpb' and
'sysctl_ibrs{,ibpb}_enabled' entries. Now, a "proposed" kernel is
v4.4.0-122.146 with a fix for "Redpine: WiFi scan stopping issue
observed with BLE (LP: #1757435)".
Anyway, next kernel version, mentioned above will be updated, at last,
to the v4.4.128 stable release (current version, available e.g. in 16.04
LTS is v4.4.117) and will contain this patch, of course:
* ibrs/ibpb fixes result in excessive kernel logging (LP: #1755627)
- SAUCE: remove ibrs_dump sysctl interface
So, we have to wait a little more, because so-called "master-next"
branch (with all needed patches for already mentioned v4.4.128 Stable
release) was updated only 24 hours ago. Additionally, there will be also
a couple of 'x86/spectre' and 'x86/retpoline' patches (mainly in
v4.4.118).
Thanks, best regards.
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https://bugs.launchpad.net/bugs/1755627
Title:
ibrs/ibpb fixes result in excessive kernel logging
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