Messages in this thread | | | Date | Wed, 18 Sep 2013 14:52:39 +0100 | From | Al Viro <> | Subject | Re: [BUG] 3.7-rc regression bisected: s2disk fails to resume image: Processes could not be frozen, cannot continue resuming |
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On Tue, Aug 27, 2013 at 07:48:43AM +0400, Andrew Savchenko wrote: > > Additional (but probably useless) information on this bug may be found > > here: https://forums.gentoo.org/viewtopic-p-7371120.html
Something's very fishy there:
[quote] Digging into suspend-utils code shows that the following ioctl fails on "/dev/snapshot":
Code: ioctl(dev, _IO(3, 1), 0); [end quote]
but that's _not_ anything freeze-related - that's HDIO_GETGEO, and with zero as last argument it will fail, no matter what. With EFAULT, if nothing else...
Which ioctl() it really is? A bit further down you write "I modified suspend code to see errno, so freeze on /dev/snapshot fails [with EAGAIN]", so you have isolated the call in question. Could you quote the actual code?
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