[systemd-devel] Failed to apply ACLs: Invalid argument

[Matwey V. Kornilov]

2017-07-19 12:47 GMT+03:00 Lennart Poettering <lennart at poettering.net>:
> On Wed, 19.07.17 12:38, Matwey V. Kornilov (matwey.kornilov at gmail.com) wrote:
>
>> This is all that is relevant to Invalid Argument errno in strace:
>>
> [...]
>> readlinkat(AT_FDCWD, "/sys/module/parport", 0x55d7a4d5d940, 99) = -1
>> EINVAL (Invalid argument)
>
> realinkat() returns EINVAL when invoked on a non-symlinks. It's not a
> real error, just a way to report that mismatch.
>
>> drwxr-xr-x 3 root root 0 июл 19 12:35 /sys/devices/virtual/input/input7/event7
>> drwxr-xr-x 5 root root 0 июл 19 12:31 /sys/module/parport
>> drwxr-xr-x 7 root root 0 июл 19 12:33 /sys/module/parport_pc
>>
>> It is brand-new openSUSE 42.2 installation. No selinux or something like that.
>
> Not sure what else I can suggest then, except attaching gdb to logind
> and check what happens when you switch VTs... it should be sufficient
> to set a breakpoint onto devnode_acl_all() and wait until it gets
> triggered, and then follow the code until you see EINVAL thrown.
>
> Unless you know gdb well enough you shouldn't attempt that though...
>

Ok, it is udev_enumerate_scan_devices who returns -22

> Lennart
>
> --
> Lennart Poettering, Red Hat



-- 
With best regards,
Matwey V. Kornilov