On Sat, 28 Apr 2007, Rafael J. Wysocki wrote:
On Saturday, 28 April 2007 20:32, David Lang wrote:
On Sat, 28 Apr 2007, Pavel Machek wrote:
We freeze user space processes for the reasons that you have quoted above.
Why we freeze kernel threads in there too is a good question, but not for me to
answer. I don't know. Pavel should know, I think.
We do not want kernel threads running:
a) they may hold some locks and deadlock suspend
b) they may do some writes to disk, leading to corruption
We could solve a) by carefully auditing suspend lock usage to make
sure deadlocks are impossible even with kernel threads running.
remember that we are doing suspend-to-disk, after we do the snapshot we will be
doing a shutdown. that should simplify the locking issues
That's assuming that we won't need to cancel the hibernation.
true, but if we cancel the hibernation then why are the locks an issue? they are
appropriate for the system state.
David Lang
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
