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ChrisOfBristol
September 3rd, 2011, 01:53 PM
It keeps hanging, sometimes it comes back to life after waiting five minutes, once or twice it has rebooted itself.

I suspected overheating, so cleaned out the fan, put new grease on the graphics card heatsink and a fan on it. Everything is running very cool (processor monitor says it is 40C). So it can't be overheating.

The computer is unusable because of this.

What should I try next?

ChrisOfBristol
September 12th, 2011, 10:50 PM
After Ubuntu, I tried Fedora and Mint without any improvement, but in swapping CDs and disk drives around I've discovered that it seems to be ok from a live DVD (PATA) with no hard disk drive (PATA) attached, although there was nothing wrong with either of the disk drives I had used. The cable looks fine and I use the correct jumpers on the drives. I have also run a memory check.

ChrisOfBristol
September 13th, 2011, 04:02 PM
It has now crashed into a terminal screen - showing these messages:

12457.560118 Kernel panic, not syncing, attempted to kill init.
12457.560230 pid:1, comm: init not tainted 2.6.38-8-generic #42-ubuntu
12457.560318 Call Trace:
-(Lots of lines)
-
-
-
12457.561659 panic occurred, switching back to text console

Rubi1200
September 13th, 2011, 05:43 PM
I suggest you post the results of the boot info script so we can get a better overview of the current state of your system,

There is a link at the bottom of my post with instructions.

Thanks.

ChrisOfBristol
September 13th, 2011, 06:03 PM
I suggest you post the results of the boot info script...
I've run this as suggested, NB there was a warning that it could not find awk so used busybox awk.
Nautilus shows two floppy drives even though I have none and there is no reference to them in the BIOS editor.



Boot Info Script 0.60 from 17 May 2011


============================= Boot Info Summary: ===============================

=> Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos1)/boot/grub on this drive.
=> Syslinux MBR (3.61-4.03) is installed in the MBR of /dev/sdb.

sda1: __________________________________________________ ________________________

File system: ext3
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 11.04
Boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda2: __________________________________________________ ________________________

File system: Extended Partition
Boot sector type: Unknown
Boot sector info:

sda5: __________________________________________________ ________________________

File system: swap
Boot sector type: -
Boot sector info:

sda6: __________________________________________________ ________________________

File system: ext3
Boot sector type: -
Boot sector info:
Operating System:
Boot files:

sdb1: __________________________________________________ ________________________

File system: vfat
Boot sector type: Syslinux 3.53-3.86
Boot sector info: Syslinux looks at sector 528 of /dev/sdb1 for its
second stage. It is very unlikely that Syslinux is
(still) installed. The second stage could not be
found. No errors found in the Boot Parameter Block.
Operating System:
Boot files:

============================ Drive/Partition Info: =============================

Drive: sda __________________________________________________ ___________________

Disk /dev/sda: 80.0 GB, 80025280000 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156299375 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sda1 * 63 25,189,919 25,189,857 83 Linux
/dev/sda2 25,189,981 156,296,384 131,106,404 5 Extended
/dev/sda5 25,189,983 33,367,004 8,177,022 82 Linux swap / Solaris
/dev/sda6 33,367,068 156,296,384 122,929,317 83 Linux


Drive: sdb __________________________________________________ ___________________

Disk /dev/sdb: 1028 MB, 1028653056 bytes
16 heads, 32 sectors/track, 3924 cylinders, total 2009088 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sdb1 * 32 2,009,087 2,009,056 e W95 FAT16 (LBA)


"blkid" output: __________________________________________________ ______________

Device UUID TYPE LABEL

/dev/sda1 1d3b0d8c-0aa3-4df8-b424-5058184b6678 ext3
/dev/sda5 4a3af238-0777-4d0d-af85-e25149101ccc swap
/dev/sda6 ac1a0741-6076-441f-9632-3f6a89795f45 ext3
/dev/sdb1 D234-34B9 vfat UDISK 2.0

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/sda1 / ext3 (rw,errors=remount-ro,commit=0)
/dev/sda6 /home ext3 (rw,commit=0)
/dev/sdb1 /media/UDISK 2.0 vfat (rw,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000, shortname=mixed,dmask=0077,utf8=1,showexec,flush)


=========================== sda1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
set locale_dir=($root)/boot/grub/locale
set lang=en_GB
insmod gettext
if [ "${recordfail}" = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
if [ ${recordfail} != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "$linux_gfx_mode" != "text" ]; then load_video; fi
menuentry 'Ubuntu, with Linux 2.6.38-11-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
linux /boot/vmlinuz-2.6.38-11-generic root=UUID=1d3b0d8c-0aa3-4df8-b424-5058184b6678 ro quiet splash vt.handoff=7
initrd /boot/initrd.img-2.6.38-11-generic
}
menuentry 'Ubuntu, with Linux 2.6.38-11-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
echo 'Loading Linux 2.6.38-11-generic ...'
linux /boot/vmlinuz-2.6.38-11-generic root=UUID=1d3b0d8c-0aa3-4df8-b424-5058184b6678 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.38-11-generic
}
submenu "Previous Linux versions" {
menuentry 'Ubuntu, with Linux 2.6.38-8-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
linux /boot/vmlinuz-2.6.38-8-generic root=UUID=1d3b0d8c-0aa3-4df8-b424-5058184b6678 ro quiet splash vt.handoff=7
initrd /boot/initrd.img-2.6.38-8-generic
}
menuentry 'Ubuntu, with Linux 2.6.38-8-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
echo 'Loading Linux 2.6.38-8-generic ...'
linux /boot/vmlinuz-2.6.38-8-generic root=UUID=1d3b0d8c-0aa3-4df8-b424-5058184b6678 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.38-8-generic
}
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 1d3b0d8c-0aa3-4df8-b424-5058184b6678
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${timeout}" != "x-1" ]; then
if keystatus; then
if keystatus --shift; then
set timeout=-1
else
set timeout=0
fi
else
if sleep --interruptible 3 ; then
set timeout=0
fi
fi
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda1/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
/dev/sda1 / ext3 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=ac1a0741-6076-441f-9632-3f6a89795f45 /home ext3 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=4a3af238-0777-4d0d-af85-e25149101ccc none swap sw 0 0
#/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
#/dev/fd1 /media/floppy1 auto rw,user,noauto,exec,utf8 0 0
--------------------------------------------------------------------------------

=================== sda1: Location of files loaded by Grub: ====================

GiB - GB File Fragment(s)

1.877086163 = 2.015505920 boot/grub/core.img 1
1.877093792 = 2.015514112 boot/grub/grub.cfg 1
1.929580212 = 2.071870976 boot/initrd.img-2.6.38-11-generic 10
2.006232738 = 2.154176000 boot/initrd.img-2.6.38-8-generic 6
1.902816296 = 2.043133440 boot/vmlinuz-2.6.38-11-generic 3
1.929381847 = 2.071657984 boot/vmlinuz-2.6.38-8-generic 3
1.929580212 = 2.071870976 initrd.img 10
2.006232738 = 2.154176000 initrd.img.old 6
1.902816296 = 2.043133440 vmlinuz 3
1.929381847 = 2.071657984 vmlinuz.old 3

======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown BootLoader on sda2

00000000 00 00 01 ba 44 03 bf 32 3c 01 01 89 c3 f8 00 00 |....D..2<.......|
00000010 01 bd 07 ec 81 80 05 21 00 f1 10 0f 80 02 01 e4 |.......!........|
00000020 41 90 a1 6f 31 62 88 96 d3 f3 7c f5 7c 22 f4 65 |A..o1b....|.|".e|
00000030 6e ec 6b 20 c2 8b 6b a5 31 89 e4 58 96 5b 45 27 |n.k ..k.1..X.[E'|
00000040 0f 05 93 26 a9 24 ac 73 0a f6 c2 cc e5 4f 88 60 |...&.$.s.....O.`|
00000050 03 27 45 f4 e1 9c 03 2c a6 70 54 cc 1f 46 8c fa |.'E....,.pT..F..|
00000060 03 8d e4 97 54 5f 75 46 12 17 46 c3 22 1a d4 b1 |....T_uF..F."...|
00000070 da 18 aa 28 c7 2f a4 23 20 db e3 13 84 9d 34 af |...(./.# .....4.|
00000080 a4 75 46 d8 92 62 16 bd fa 47 ca ca dc e5 fb 4f |.uF..b...G.....O|
00000090 83 06 94 97 d3 8d f6 f4 16 bd b5 55 57 f1 d4 8b |...........UW...|
000000a0 bd 95 8d ca 49 bc 83 e5 34 ad 8f 77 5b 48 a5 c4 |....I...4..w[H..|
000000b0 e4 51 2d 39 be 9b 14 79 2a 47 06 98 00 3f 56 b3 |.Q-9...y*G...?V.|
000000c0 36 90 02 29 e6 29 7a 4a 7b 83 73 41 3e a8 46 33 |6..).)zJ{.sA>.F3|
000000d0 24 83 5f ca 66 cd 79 a5 93 62 4e 82 b3 52 4e b6 |$._.f.y..bN..RN.|
000000e0 e9 4c 26 c5 76 a6 04 61 1b 94 8e fb 92 ba f1 2d |.L&.v..a.......-|
000000f0 9c 76 0f 6e 8c 22 62 df 05 51 de dd 4c 5d e3 a5 |.v.n."b..Q..L]..|
00000100 ff c8 d2 75 43 75 1c e9 51 c0 39 07 24 8b 53 4a |...uCu..Q.9.$.SJ|
00000110 5d 6c ba c3 56 1c a3 c0 84 5c 30 81 8b 5a 42 3c |]l..V....\0..ZB<|
00000120 6d ea 3b 5d af 66 f8 86 00 09 87 8b 88 59 f6 f4 |m.;].f.......Y..|
00000130 34 9f 51 36 fe 04 5e 18 e8 b7 fe 3c 96 17 06 37 |4.Q6..^....<...7|
00000140 89 6a 72 d6 f8 b0 9a 47 11 a4 a9 da 9b 7c 1c b5 |.jr....G.....|..|
00000150 22 0c 6b 5a d7 24 8e 7b 5a f5 7c 1a 37 fc b6 be |".kZ.$.{Z.|.7...|
00000160 4f 02 62 69 d2 3e eb 0b 06 f6 97 aa 0c 91 7e 16 |O.bi.>........~.|
00000170 c8 da db af a8 40 0c 6a 96 19 a2 23 b6 4e 1e 5a |.....@.j...#.N.Z|
00000180 82 78 ad 11 df 12 a4 6b ec 4c 83 56 d4 1f 2a 36 |.x.....k.L.V..*6|
00000190 92 46 be 21 80 01 bd f1 6c eb 70 c3 96 cc c6 cf |.F.!....l.p.....|
000001a0 36 cb 09 0c 43 1b 84 30 56 c6 43 e4 3d ac 85 9d |6...C..0V.C.=...|
000001b0 72 51 68 d8 c6 4f 4c 17 6f 1e bf 76 41 73 00 fe |rQh..OL.o..vAs..|
000001c0 ff ff 82 fe ff ff 02 00 00 00 7e c5 7c 00 00 fe |..........~.|...|
000001d0 ff ff 05 fe ff ff 80 c5 7c 00 e4 c0 53 07 00 00 |........|...S...|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200


========= Devices which don't seem to have a corresponding hard drive: =========

sdc sdd

=============================== StdErr Messages: ===============================

unlzma: Decoder error

Rubi1200
September 14th, 2011, 04:38 AM
I don't see anything immediately wrong with the boot script results and clearly you have taken other steps to try and isolate the problem.

Did you recently install some software or updates that may have led to this?

Have you tried booting an older kernel to see if the problem persists?

ChrisOfBristol
September 14th, 2011, 02:24 PM
I only installed Ubuntu on this computer last week and it has had the problem since. I re-installed once just in case. I'll try running on the earlier kernel as you suggest and see what happens.

ChrisOfBristol
September 15th, 2011, 01:56 PM
After finding this suggestion:
http://ubuntuforums.org/showthread.php?t=1589135 I disabled 'Enhanced Intel Speedstep Technology' in the BIOS. The computer has now run a couple of hours with me using it, and all night without. I can't be certain that this has fixed it because the freezes were unpredictable, but they always happened within 5 minutes to two hours of switching on the computer, so I'm very hopeful!

It's now been working without any problems since 15/9/2011 so I am confident that disabling Speedstep in the BIOS has fixed it.

rafe_b
January 8th, 2012, 11:45 PM
After finding this suggestion:
http://ubuntuforums.org/showthread.php?t=1589135 I disabled 'Enhanced Intel Speedstep Technology' in the BIOS.

And as of 1/8/12, I can confirm another instance of this same fix working nicely on an Asus Pundit P1-PH1 desktop PC from geeks.com.

The symptoms were random freezes (no response from mouse or keyboard, but video still intact) which occasionally un-froze on their own. The computer has worked fine for >8 hrs (so far) since making this one change to the BIOS settings.

ChrisOfBristol
January 9th, 2012, 12:10 AM
And as of 1/8/12, I can confirm another instance of this same fix working nicely

Thanks for confirming it, and mine has worked perfectly ever since my post of 15th September last year (four months), so there's no doubt about the cause and cure now.