very long boot time in fedora 15

[Ian Malone]

On 27 May 2011 17:36, R. G. Newbury <newbury at mandamus.org> wrote:
> On 05/26/2011 05:04 PM, Ian Malone<ibmalone at gmail.com> wrote
>
>> I'm trying to work out why Fedora 15 takes an incredibly long time to
>> start on this machine (Intel Core 2 Duo T5500, 1GB RAM laptop),
>> booting takes several minutes as opposed to F13. No custom modules,
>> just stock Fedora, intel wireless and graphics, used preupgrade to go
>> F13 to F15. I can try and provide more information, but I'm not sure
>> where to start with this, any ideas? Some things that might be
>> relevant below.
>>
>> dmesg, at the 'gap':
>> [   43.006805] sky2 0000:02:00.0: eth0: enabling interface
>> [   43.010915] ADDRCONF(NETDEV_UP): eth0: link is not ready
>> [   43.044360] iwl3945 0000:06:00.0: loaded firmware version 15.32.2.9
>> [   43.111086] iwl3945 0000:06:00.0: Error setting Tx power (-5).
>> [   43.132498] ADDRCONF(NETDEV_UP): wlan0: link is not ready
>> [  344.645061] RPC: Registered udp transport module.
>> [  344.645066] RPC: Registered tcp transport module.
>> [  344.645069] RPC: Registered tcp NFSv4.1 backchannel transport module.
>
> It *looks* like it is waiting for the link to become ready.
>
> You could try using the iwlagn module instead of the iwl3945, to see if
> that module reacts better. It is supposed to work with the 3945 chipset
> iirc.
>
> I would then try turning off ALL network services and dependencies of
> those. and timing boot in that condition. Then timing startup of the
> network with the wired NIC only, and then with the wireless NIC only,
> etc. etc.
>
> It *could* be that the delay is some other module which actually depends
> on network services, such as an NFS or samba share etc..
>

Per https://bugzilla.redhat.com/show_bug.cgi?id=708207 what's actually
happening is startup is waiting while the wireless attempts to connect
to every NM generated ifcfg-Auto_X on the system, and in fact times
out before it gets through them all. Presumably something is waiting
on this to finish that's not actually needed, but the immediate
problem is solved by cleaning them out.

-- 
imalone