[elrepo] CONFIG_FW_LOADER_USER_HELPER

[Phil Perry]

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.