[systemd-devel] udev took too long to start

[Harald Hoyer]

Am 20.05.2011 18:49, schrieb microcai:
> 于 2011年05月20日 23:35, Kay Sievers 写道:
>> On Fri, May 20, 2011 at 17:32, microcai<microcai at fedoraproject.org>  wrote:
>>
>>> Now I've full relized that, the problem is fsck-root.service.
>>>
>>> udev.service stay idle as soon as fsck-root.service exit.
>>>
>>> It is fsck-root.service that took so long to do the job.
>>
>> Check that the clock is right, that rtc is set by the kernel:
>>    [    0.851573] rtc_cmos 00:07: setting system clock to 2011-05-20
>> 15:24:49 UTC (1305905089)
>>
>> so that fsck does not think it needs to check?
>>
>> Kay
>
> It's some kinds wired strange.
>
> When I disable readahead, fsck-root.service done in less than 1s.
>
> But when I enable readahead, fsck-root.service took more thatn 8s to finish.
>
> It's that strange?

No.. it isn't... both do heavy I/O and share the same slow disk :)