Re: 2.6.14.3 suspend/resume with SMP (HT)

["Karl H. Beckers" <karl.h.beckers-hi6Y0CQ0nG0@public.gmane.org>]

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Hi Christoph, Shaohua,

I do have hotplug_cpu configured into my kernel and disabling/enabling
CPUs works just as well in the situation where I did my suspend, s.
below.

Could it be the setting idle=halt is causing problems? I need that (or
max_cstate=1 to keep my CPU up to speed) ... otherwise I get boottimes
of an hour) found a patch that didn't help me, so I sticked to the boot
param. Haven't gotten round to testing without the param because it
would take a matter of hours to boot and suspend :S
Probable cause here?

Thanks,

Karl.






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Script started on Mon Dec 19 21:04:00 2005
root@ubuntu:~# lsmod 
Module                  Size  Used by
wbsd                   19080  0 
mmc_core               25088  1 wbsd
floppy                 63364  0 
pcspkr                  4072  0 
rtc                     9748  0 
ohci1394               35508  0 
tpm_atmel               6144  0 
tpm_infineon            9872  0 
tpm_nsc                 7168  0 
tpm                    10656  3 tpm_atmel,tpm_infineon,tpm_nsc
shpchp                 98180  0 
pci_hotplug            29764  1 shpchp
intel_agp              23708  1 
agpgart                35920  1 intel_agp
vfat                   14336  0 
fat                    54428  1 vfat
dm_mod                 59804  4 
sbp2                   24324  0 
ieee1394              101720  2 ohci1394,sbp2
psmouse                38788  0 
parport_pc             36548  1 
lp                     12420  0 
parport                37960  2 parport_pc,lp
st                     42144  0 
scsi_mod              141320  2 sbp2,st
ext3                  142088  4 
jbd                    63764  1 ext3
thermal                13576  0 
processor              25924  1 thermal
fan                     4868  0 
usbhid                 39136  0 
8139too                29184  0 
8139cp                 22912  0 
mii                     5888  2 8139too,8139cp
usbcore               123520  2 usbhid
ide_cd                 42628  0 
cdrom                  40480  1 ide_cd
ide_disk               19200  4 
ide_generic             1536  0 [permanent]
piix                   10884  0 [permanent]
generic                 4868  0 [permanent]
ide_core              130128  5 ide_cd,ide_disk,ide_generic,piix,generic
unix                   29584  2 
root@ubuntu:~# ps -ef
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 21:01 ?        00:00:01 init [S]         
root         2     1  0 21:01 ?        00:00:00 [migration/0]
root         3     1  0 21:01 ?        00:00:00 [ksoftirqd/0]
root         4     1  0 21:01 ?        00:00:00 [migration/1]
root         5     1  0 21:01 ?        00:00:00 [ksoftirqd/1]
root         6     1  0 21:01 ?        00:00:00 [events/0]
root         7     1  0 21:01 ?        00:00:00 [events/1]
root         8     1  0 21:01 ?        00:00:00 [khelper]
root         9     1  0 21:01 ?        00:00:00 [kthread]
root        12     9  0 21:01 ?        00:00:00 [kacpid]
root       100     9  0 21:01 ?        00:00:00 [kblockd/0]
root       101     9  0 21:01 ?        00:00:00 [kblockd/1]
root       130     9  0 21:01 ?        00:00:00 [pdflush]
root       131     9  0 21:01 ?        00:00:00 [pdflush]
root       132     1  0 21:01 ?        00:00:00 [kswapd0]
root       133     9  0 21:01 ?        00:00:00 [aio/0]
root       134     9  0 21:01 ?        00:00:00 [aio/1]
root       721     9  0 21:01 ?        00:00:00 [kseriod]
root       759     1  0 21:01 ?        00:00:00 [kirqd]
root      4886     9  0 21:01 ?        00:00:00 [khubd]
root      9201     1  0 21:01 ?        00:00:00 [kjournald]
root      9557     1  0 21:01 ?        00:00:00 udevd --daemon
root     13607     1  0 21:01 ?        00:00:00 [khpsbpkt]
root     13927     1  0 21:01 ?        00:00:00 [kjournald]
root     13928     1  0 21:01 ?        00:00:00 [kjournald]
root     13929     1  0 21:01 ?        00:00:00 [kjournald]
root     14207     1  0 21:01 ?        00:00:00 [shpchpd_event]
root     15061     1  0 21:01 ?        00:00:00 [knodemgrd_0]
root     16185     1  0 21:01 tty1     00:00:00 init [S]         
root     16190 16185  0 21:01 tty1     00:00:00 bash
root     17165 16190  0 21:04 tty1     00:00:00 script
root     17166 17165  0 21:04 tty1     00:00:00 script
root     17167 17166  0 21:04 ttyp0    00:00:00 bash -i
root     17177 17167  0 21:04 ttyp0    00:00:00 ps -ef
root@ubuntu:~# echo "platform"\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \b\b \becho 0 > /sys/devices/system/cpu/cpu\a
cpu0/ cpu1/ 
root@ubuntu:~# echo 0 > /sys/devices/system/cpu/cpu1/online
root@ubuntu:~# echo 0 > /sys/devices/system/cpu/cpu1/online\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b^[[1P^[[1@1
root@ubuntu:~# echo /sys/devices/system/cpu/cp\au1/\b \b\b \b?/online
/sys/devices/system/cpu/cpu0/online /sys/devices/system/cpu/cpu1/online
root@ubuntu:~# echo /sys/devices/system/cpu/cpu?/online\rroot@ubuntu:~# echo\b^[[1P\b^[[1P\b^[[1P\b^[[1P^[[1@c^[[1@a^[[1@t
1
1
root@ubuntu:~# gre\b \b\b \b\b \b\ag\b \bzgrep -i ht\b \botplug_cpu /proc/config.gz 
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_HOTPLUG_CPU=y
root@ubuntu:~# exit

Script done on Mon Dec 19 21:06:43 2005