Hi!
> > Could it be that the pm_ops->finish(SUSPEND_MEM) is somehow running
> > asynchronously? And that something in the hardware forbids accessing certain
> > memory regions while the AML code is still executed? Just wild guessing :-)
> >
> > Or asked the other way round:
> > "What exactly is forbidden while all processes but the suspend program are
> > frozen?"
> > If we know what is forbidden, we might find out what we are doing wrong.
> >
> > Or: "What conditions can cause the kernel to kill a process with signal 11"?
>
> Since it's somewhat related to memory pressure: maybe (part of) the text
> segment of either s2ram or glibc is evicted from memory or not yet
> faulted in. Upon resume but before unfreeze() s2ram takes a page fault
> but since no I/O can be started it just die. Make sense?
No... it would hang waiting for disk to deliver the page...
> Can you try this patch:
...but that patch makes lot of sense, anyway. I thought we did that,
already?
Pavel
> Index: s2ram.c
> ===================================================================
> RCS file: /cvsroot/suspend/suspend/s2ram.c,v
> retrieving revision 1.45
> diff -u -r1.45 s2ram.c
> --- s2ram.c 20 Sep 2006 16:23:51 -0000 1.45
> +++ s2ram.c 8 Oct 2006 22:04:21 -0000
> @@ -10,6 +10,7 @@
> #include <getopt.h>
> #include <errno.h>
> #include <string.h>
> +#include <sys/mman.h>
>
> #define S2RAM
> #include "vbetool/vbetool.h"
> @@ -326,6 +327,8 @@
> usage();
> }
>
> + mlockall(MCL_CURRENT | MCL_FUTURE);
> +
> if (!force) {
> dmi_scan();
> id = machine_match();
>
>
> It makes sense to pin s2ram in memory, it will also help when e.g. the
> disk doesn't come back to life after suspension.
>
> Luca
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Suspend-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/suspend-devel
