modprobe.d is not honored on uc20
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| snapd |
New
|
Undecided
|
Unassigned | ||
| linux (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned | ||
Bug Description
Ubuntu kernels by default ship modprobe.d that excludes many modules from loading:
# Kernel supplied blacklist for linux 5.4.0-89-generic amd64
# modprobe.
# LP:1434842 -- disable OSS drivers by default to allow pulseaudio to emulate
blacklist snd-mixer-oss
blacklist snd-pcm-oss
# Autogenerated watchdog blacklist
blacklist acquirewdt
blacklist advantechwdt
blacklist ahc1ec0-wdt
blacklist alim1535_wdt
blacklist alim7101_wdt
blacklist cadence_wdt
blacklist cpu5wdt
blacklist da9052_wdt
blacklist da9055_wdt
blacklist da9062_wdt
blacklist da9063_wdt
blacklist dw_wdt
blacklist ebc-c384_wdt
blacklist eurotechwdt
blacklist f71808e_wdt
blacklist hpwdt
blacklist i6300esb
blacklist iTCO_vendor_support
blacklist iTCO_wdt
blacklist ib700wdt
blacklist ibmasr
blacklist ie6xx_wdt
blacklist it8712f_wdt
blacklist it87_wdt
blacklist kempld_wdt
blacklist machzwd
blacklist max63xx_wdt
blacklist mei_wdt
blacklist mena21_wdt
blacklist menf21bmc_wdt
blacklist menz69_wdt
blacklist mlx_wdt
blacklist ni903x_wdt
blacklist nic7018_wdt
blacklist nv_tco
blacklist of_xilinx_wdt
blacklist pc87413_wdt
blacklist pcwd_pci
blacklist pcwd_usb
blacklist pretimeout_panic
blacklist rave-sp-wdt
blacklist retu_wdt
blacklist sbc60xxwdt
blacklist sbc_epx_c3
blacklist sbc_fitpc2_wdt
blacklist sc1200wdt
blacklist sch311x_wdt
blacklist smsc37b787_wdt
blacklist softdog
blacklist sp5100_tco
blacklist tqmx86_wdt
blacklist twl4030_wdt
blacklist via_wdt
blacklist w83627hf_wdt
blacklist w83877f_wdt
blacklist w83977f_wdt
blacklist wafer5823wdt
blacklist wdat_wdt
blacklist wdt_pci
blacklist wm831x_wdt
blacklist wm8350_wdt
blacklist xen_wdt
blacklist ziirave_wdt
However kernel snaps do not provide modprobe.d nor they are used by default. Is pc-kernel supposed to skip shipping those? Should there be modprobe.d in the core20 snap that prevents these known modules from loading by default?
Also I'm not too sure about the watchdog modules exclusion, given that systemd can operate watchdogs by default, hence it shouldn't be too dangerous to autoenable them?
| Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote Missing required logs. | #1 |
| Changed in linux (Ubuntu): | |
| status: | New → Incomplete |
| tags: | added: focal |
| Sergio Cazzolato (sergio-j-cazzolato) wrote | #2 |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1948040
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.