random shutdowns

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2.6.29.6-217.2.8.fc11.i586

Since yesterday, my computer has been shutting down randomly. Several times, I had walked away from the box with nothing special running. I thought it might be a hardware issue, checked connections, etc.

I wanted to know if there might be something in /var/log that would give a hint as to the problem. While poking around in there, I had a look at pm-suspend.log. Strangely, I found the following:

--- snip ---
Initial commandline parameters:
Sun Aug 23 13:04:32 EDT 2009: Running hooks for suspend.
/usr/lib/pm-utils/sleep.d/00auto-quirk suspend suspend: Adding quirks from HAL: --quirk-dpms-on --quirk-dpms-suspend --quirk-vbe-post --quirk-vbemode-restore --quirk-vbestate-restore --quirk-vga-mode-3
success.
/usr/lib/pm-utils/sleep.d/00logging suspend suspend: Linux apollo 2.6.29.6-217.2.8.fc11.i586 #1 SMP Sat Aug 15 00:44:39 EDT 2009 i686 athlon i386 GNU/Linux
Module                  Size  Used by
fuse                   49764  2
bridge                 41496  0
stp                     1944  1 bridge
llc                     4788  2 bridge,stp
bnep                   10888  2
sco                     9356  2
l2cap                  18912  3 bnep
bluetooth              44908  5 bnep,sco,l2cap
autofs4                22080  3
w83627hf               21624  0
hwmon_vid               2284  1 w83627hf
xt_limit                1812  8
iptable_mangle          3368  0
ipt_LOG                 4544  8
ipt_MASQUERADE          2364  0
nf_nat                 14748  1 ipt_MASQUERADE
xt_DSCP                 2740  0
nf_conntrack_irc        4640  0
nf_conntrack_ftp        6276  0
nf_conntrack_ipv6      11368  9
ip6t_ipv6header         1804  2
ip6t_REJECT             3160  2
ip6table_filter         3136  1
ip6_tables             10728  2 ip6t_ipv6header,ip6table_filter
ipv6                  232512  32 nf_conntrack_ipv6,ip6t_REJECT
cpufreq_ondemand        6052  1
powernow_k8            14784  0
dm_multipath           13636  0
uinput                  6496  0
k8temp                  3920  0
hwmon                   2148  2 w83627hf,k8temp
snd_mpu401              6904  0
snd_mpu401_uart         6272  1 snd_mpu401
snd_rawmidi            18776  1 snd_mpu401_uart
snd_intel8x0           27440  2
snd_ac97_codec         91752  1 snd_intel8x0
ac97_bus                1400  1 snd_ac97_codec
snd_pcm                62092  2 snd_intel8x0,snd_ac97_codec
snd_timer              17896  1 snd_pcm
snd_seq_device          5988  1 snd_rawmidi
snd_page_alloc          7572  2 snd_intel8x0,snd_pcm
ppdev                   6296  0
parport_pc             22132  0
sata_sis                4840  0
sis900                 17884  0
mii                     4008  1 sis900
ns558                   4068  0
snd 49084 12 snd_mpu401,snd_mpu401_uart,snd_rawmidi,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer,snd_seq_device
parport                28544  2 ppdev,parport_pc
gameport                9712  2 ns558
soundcore               5404  1 snd
floppy                 48052  0
pcspkr                  2156  0
ata_generic             4264  0
pata_acpi               3624  0
pata_sis                9288  4 sata_sis
             total       used       free     shared    buffers     cached
Mem:       1513048     738024     775024          0      52676     395404
-/+ buffers/cache:     289944    1223104
Swap:      2031608          0    2031608
success.
/usr/lib/pm-utils/sleep.d/00powersave suspend suspend: success.
/usr/lib/pm-utils/sleep.d/01grub suspend suspend: not applicable.
/usr/lib/pm-utils/sleep.d/49bluetooth suspend suspend: not applicable.
/usr/lib/pm-utils/sleep.d/55NetworkManager suspend suspend: success.
/usr/lib/pm-utils/sleep.d/56atd suspend suspend: success.
/usr/lib/pm-utils/sleep.d/75modules suspend suspend: not applicable.
/usr/lib/pm-utils/sleep.d/90clock suspend suspend: not applicable.
/usr/lib/pm-utils/sleep.d/94cpufreq suspend suspend: success.
/usr/lib/pm-utils/sleep.d/95led suspend suspend: not applicable.
/usr/lib/pm-utils/sleep.d/95packagekit suspend suspend: success.
/usr/lib/pm-utils/sleep.d/98smart-kernel-video suspend suspend: not applicable. /usr/lib/pm-utils/sleep.d/99hd-apm-restore.hook suspend suspend: Advanced Power Management not supported by device sdb.
saving level 255 for device sda
success.
/usr/lib/pm-utils/sleep.d/99video suspend suspend: kernel.acpi_video_flags = 0
Allocated buffer at 0x11000 (base is 0x0)
ES: 0x1100 EBX: 0x0000
success.
Sun Aug 23 13:04:33 EDT 2009: performing suspend
--- snip ---

Two things: Aug 23 13:04:32 corresponds to the latest shutdown. So, my first question is, why the heck is the box suspending? What should I check next?

I checked the "Common F11 bugs"[1] but didn't see anything similar (I have been seeing the random screen blanking problem since installing 11, though).

Has pm-utils become sentient, perhaps?

The second question is what this line means:

/usr/lib/pm-utils/sleep.d/00logging suspend suspend: Linux apollo 2.6.29.6-217.2.8.fc11.i586 #1 SMP Sat Aug 15 00:44:39 EDT 2009 i686 athlon i386 GNU/Linux

Note the date and time. I don't get it. It can't be the last time the box suspended, as it shutdown on me several times yesterday.

Anyway, does anyone have an idea? Is anyone else seeing this behaviour?

[1] https://fedoraproject.org/wiki/Common_F11_bugs

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