lkml.org 
[lkml]   [2006]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [Suspend2-devel] Re: [ 00/10] [Suspend2] Modules support.
    Date
    Hi Jim.

    On Tuesday 07 February 2006 07:07, Jim Crilly wrote:
    > On 02/06/06 12:56:43AM +0100, Rafael J. Wysocki wrote:
    > > > > > Oh. What's Pavel's solution? Fail freezing if uninterruptible
    > > > > > threads don't freeze?
    > > > >
    > > > > Yes.
    > > > >
    > > > > AFAICT it's to avoid situations in which we would freeze having a
    > > > > process in the D state that holds a semaphore or a mutex neded for
    > > > > suspending or resuming devices (or later on for saving the image
    > > > > etc.).
    > > > >
    > > > > [I didn't answer this question previously, sorry.]
    > > >
    > > > S'okay. This thread is an ocotpus :)
    > > >
    > > > Are there real life examples of this? I can't think of a single time
    > > > that I've heard of something like this happening. I do see rare
    > > > problems with storage drivers not having driver model support right,
    > > > and thereby causing hangs, but that's brokenness in a completely
    > > > different way.
    > > >
    > > > In short, I'm wondering if (apart from the forking issue), this is a
    > > > straw man.
    > >
    > > It doesn't seem to be very probable to me too, but I take this
    > > argument as valid.
    > >
    > > Greetings,
    > > Rafael
    >
    > CIFS was good for that, if you have a CIFS filesystem mounted and
    > take the network interface down (which I have my hibernate script do)
    > before the filesystem is umounted it'll become impossible to umount
    > the filesystem until the next reboot and I believe the cifsd kernel
    > thread will be unfreezable. It's been a while since I've done that
    > so it might be fixed now, but someone should verify it if it still
    > exists and potentially work with the CIFS people to get it fixed.

    Thanks for the pointer. I'll take a look at this.

    Regards,

    Nigel

    > Jim.
    >
    > _______________________________________________
    > Suspend2-devel mailing list
    > Suspend2-devel@lists.suspend2.net
    > http://lists.suspend2.net/mailman/listinfo/suspend2-devel

    --
    See our web page for Howtos, FAQs, the Wiki and mailing list info.
    http://www.suspend2.net IRC: #suspend2 on Freenode
    [unhandled content-type:application/pgp-signature]
    \
     
     \ /
      Last update: 2006-02-07 01:22    [W:4.066 / U:0.040 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site