[elrepo] CONFIG_FW_LOADER_USER_HELPER

[Orion Poplawski]

On 08/20/2016 05:03 AM, Phil Perry wrote:
> On 20/08/16 04:17, Orion Poplawski wrote:
>> Please disable CONFIG_FW_LOADER_USER_HELPER in the elrepo kernels.  This
>> introduces significant delays in loading firmware for various devices.
>> For example:
>>
>> [    4.318150] iwlwifi 0000:3a:00.0: Direct firmware load for
>> iwlwifi-7265-19.ucode failed with error -2
>> [    4.318153] iwlwifi 0000:3a:00.0: Falling back to user helper
>> [   64.319419] iwlwifi 0000:3a:00.0: Direct firmware load for
>> iwlwifi-7265-18.ucode failed with error -2
>> [   64.319429] iwlwifi 0000:3a:00.0: Falling back to user helper
>> [  124.326998] iwlwifi 0000:3a:00.0: loaded firmware version 17.352738.0
>> op_mode iwlmvm
>>
>> Each failed attempt results in a 60 second delay in attempting to load
>> the firmware.  From my research, this is not recommended to be set, and
>> RHEL and Fedora do not set it.
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1317148
>> https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1398458
>> http://unix.stackexchange.com/questions/163012/iwlwifi-timeout-delays-firmware-to-be-loaded
>>
>>
>>
>> unfortunately the workaround in the last one didn't work for me.
>>
>> Thanks.
>>
>> /boot/config-3.10.0-327.18.2.el7.x86_64:# CONFIG_FW_LOADER_USER_HELPER
>> is not set
>> /boot/config-3.10.0-327.22.2.el7.x86_64:# CONFIG_FW_LOADER_USER_HELPER
>> is not set
>> /boot/config-3.10.0-327.28.2.el7.x86_64:# CONFIG_FW_LOADER_USER_HELPER
>> is not set
>> /boot/config-3.10.0-327.28.3.el7.x86_64:# CONFIG_FW_LOADER_USER_HELPER
>> is not set
>> /boot/config-4.4.16-1.el7.elrepo.x86_64:CONFIG_FW_LOADER_USER_HELPER=y
>> /boot/config-4.4.16-1.el7.elrepo.x86_64:CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
>>
>
> Hi,
>
> I'm sure Alan will be able to help for the next kernel-lt release. In
> the meantime, please would you file this as a RFE/bug against the
> kernel-lt package at http://elrepo.org/bugs so that it may be tracked
> and actioned.
>
> Many thanks.

Filed http://elrepo.org/bugs/view.php?id=671

Doesn't look like it made it into kernel-lt-4.4.18-1.

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com