Re: "seeing minute plus hangs during boot" - 2.6.12 and 2.6.13

[Greg KH <greg@kroah.com>]

On Sun, Jul 31, 2005 at 03:46:10AM -0300, Francisco Figueiredo Jr. wrote:
> Andrew Morton wrote:
> > "Francisco Figueiredo Jr." <fxjrlists@yahoo.com.br> wrote:
> > 
> >>-----BEGIN PGP SIGNED MESSAGE-----
> >>Hash: SHA1
> >>
> >>Andrew Morton wrote:
> >>
> >>>"Francisco Figueiredo Jr." <fxjrlists@yahoo.com.br> wrote:
> >>>
> >>>
> >>>>udev          S 00000002     0  1312      1                1224 (NOTLB)
> >>>>c1653f4c 00000082 c1653f3c 00000002 00000001 00000040 c1653f64 c1653f0c
> >>>>       c016611b bfec96a8 c1653f0c 00000040 00000000 00000361 000241ed
> >>>>c13fb520
> >>>>       00000001 00001a7e 98f9769f 00000002 c146e520 df5da020 df5da148
> >>>>c13fbf60
> >>>>Call Trace:
> >>>> [<c016611b>] cp_new_stat+0x15f/0x17a
> >>>> [<c0352a74>] schedule_timeout+0x54/0xa2
> >>>> [<c01274ce>] process_timeout+0x0/0x9
> >>>> [<c01275c4>] sys_nanosleep+0xdd/0x18e
> >>>> [<c0102e85>] syscall_call+0x7/0xb
> >>>
> >>>
> >>>Well there's your delay: you've started running userspace and udev is
> >>>running.  Yes, it takes a long time.
> >>>
> >>>What makes you think this isn't normal behaviour?  Do other kernels behave
> >>>differently with the same userspace setup?
> >>>
> >>
> >>
> >>That's the point. On kernel 2.6.11 on same box I have no delay. It is
> >>instantaneous. On 2.6.12-rc1 it was instantaneous but I didn't use it
> >>much because I had drm problems. Later I tried 2.6.12 final and it was
> >>hanging. I saw the "seeing a minute plugs hangs" on 2.6.13-rc1 release
> >>notes and thought this could be the problem, but I compiled it and tried
> >>with no luck :(
> >>
> >>Now, I'm thinking it could be something like the udev hang which
> >>disapeared with udev update to 058.
> >>
> >>I don't know what can be happening. I think it is because of some type
> >>of timeout.
> >>
> >>If you think there is something else I can do, please let me know.
> >>
> > 
> > 
> > Greg said in another thread: "older versions of udev (< 058) can work
> > _really slow_ with 2.6.12.  Please upgrade your version of udev and see if
> > that solves the issue or not.".
> > 
> > What version are you running?   Looks like 058, yes?
> 
> 
> Yeap. It is 058.

Hm, odd.  Well, as this is a udev issue, care to try 064?  We've fixed a
lot of little bugs since 058 that might have caused this.

thanks,

greg k-h