Re: 2.6.21-rc5: swsusp: Not enough free memory

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On 4/12/07, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> On Wednesday, 11 April 2007 17:02, Jiri Slaby wrote:
> > Rafael J. Wysocki napsal(a):
> > > On Wednesday, 11 April 2007 12:45, Jiri Slaby wrote:
> > >> Rafael J. Wysocki napsal(a):
> > >>> On Wednesday, 11 April 2007 09:36, Jiri Slaby wrote:
> > >>>> Rafael J. Wysocki napsal(a):
> > >>>>> On Monday, 9 April 2007 22:07, Jiri Slaby wrote:
> > >>>>>> I have bad news for you :(. I thought I had unpatched kernel, but it happens
> > >>>>>> in -rc6 too.
> > >>>>> I guess you mean you're still seeing the 'not enough memory to suspend'
> > >>>>> problem?
> > >>>> Yes:
> > >>>> Disabling non-boot CPUs ...
> > >>>> kvm: disabling virtualization on CPU1
> > >>>> Breaking affinity for irq 9
> > >>>> CPU 1 is now offline
> > >>>> SMP alternatives: switching to UP code
> > >>>> CPU1 is down
> > >>>> swsusp: critical section:
> > >>>> swsusp: Need to copy 158309 pages
> > >>>> swsusp: Not enough free memory
> > >>>> Error -12 suspending
> > >>>> Enabling non-boot CPUs ...
> > >>>> SMP alternatives: switching to SMP code
> > >>>> Booting processor 1/2 APIC 0x1
> > >>>> Initializing CPU#1
> > >>> How reproducible is it?  I'm going to try to reproduce it on one of my boxes.
> > >> My tip is one of three cases: after some work on fresh boot -- some
> > >> consumers such as thunderbird, firefox, 10 or so terminals with
> > >> gnome-session. Single xterm + gnome-session semms not to be a problem.
> > >
> > > Does the workaround with setting the image size below 1/2 of RAM work for you?
> >
> > Yes. Yesterday I must set the value to 350M -- 400M was not enough.
>
> Well, I can't reproduce it.
>
> Can you please try to reproduce it with the appended patch applied and send
> the output of dmesg to me?
>
> Greetings,
> Rafael
>
> ---
>  kernel/power/snapshot.c |    4 ++--
>  kernel/power/swsusp.c   |   16 ++++++++++++----
>  2 files changed, 14 insertions(+), 6 deletions(-)

Shrinking memory...  Pages needed: 128103 normal, 0 highmem
Pages needed: 125226 normal, 0 highmem
Pages needed: -5757 normal, 0 highmem
Pages needed: -5757 normal, 0 highmem
Pages needed: -5757 normal, 0 highmem
Pages needed: -5757
Pages needed: 127953 normal, 0 highmem
Pages needed: 125076 normal, 0 highmem
Pages needed: -6043 normal, 0 highmem
Pages needed: -6043 normal, 0 highmem
Pages needed: -6043 normal, 0 highmem
Pages needed: -6043
done (200 pages freed)
Freed 800 kbytes in 0.16 seconds (5.00 MB/s)
Suspending console(s)
...
CPU1 is down
swsusp: critical section:
swsusp: Need to copy 131358 pages
swsusp: Normal pages needed: 131358
swsusp: Normal pages needed: 131358 + 1024 + 22, available pages: 130607
swsusp: Not enough free memory
Error -12 suspending
Enabling non-boot CPUs ...
SMP alternatives: switching to SMP code
Booting processor 1/2 APIC 0x1
Not responding.
Inquiring remote APIC #1...
... APIC #1 ID: failed
... APIC #1 VERSION: failed
... APIC #1 SPIV: failed
kvm: disabling virtualization on CPU1
Error taking CPU1 up: -5
PCI: Setting latency timer of device 0000:00:01.0 to 64

Please note the CPU#1 bring up problem too. Whole dmesg at:
http://www.fi.muni.cz/~xslaby/sklad/dmesg.nomem

regards,
-- 
http://www.fi.muni.cz/~xslaby/            Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
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