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[Bug 810867] New: Freeze at boot time after loading microcode update
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 21 Mar 2013 20:04:17 +0000
  • Message-id: <bug-810867-21960@http.bugzilla.novell.com/>

https://bugzilla.novell.com/show_bug.cgi?id=810867

https://bugzilla.novell.com/show_bug.cgi?id=810867#c0


Summary: Freeze at boot time after loading microcode update
Classification: openSUSE
Product: openSUSE 12.2
Version: Final
Platform: x86-64
OS/Version: openSUSE 12.2
Status: NEW
Severity: Critical
Priority: P5 - None
Component: Kernel
AssignedTo: kernel-maintainers@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: jimoe@xxxxxxxxxxxxxx
QAContact: qa-bugs@xxxxxxx
Found By: ---
Blocker: ---


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:19.0) Gecko/20100101
Firefox/19.0

Hardware: AMD Athlon II x4 (635), 4GB RAM (non-ECC), Asus m3a78-em motherboard

(I originally report this in issue #761728, but the OP observed that this is
nothing like the issue he has. So, here I am.

I do not recall the kernel version of the original report; whatever was
released for late Oct 2012.

current version: linux v3.4.33-2.24-desktop x86_64)

So far two systems (of 5) have shown the tendency to freeze during boot. The
freeze occurs immediately after loading the microcode. The chance of a freeze
is about 50%.

Oct 28 19:47:08 linux kernel: [ 2.268561] [drm] Loading RS780 Microcode
... bunch o' stuff ...
Oct 28 19:47:08 linux kernel: [ 4.342778] device fsid
0617578a-edca-4e3b-9100-729ae05c9057 devid 1 transid 57 /dev/sdc7
Oct 28 19:47:08 linux kernel: [ 4.343493] btrfs: disk space caching is
enabled
Oct 28 19:47:08 linux kernel: [ 7.348880] microcode: CPU0:
patch_level=0x00000000
Oct 28 19:47:08 linux kernel: [ 8.280828] btrfs: disk space caching is
enabled
Oct 28 19:47:08 linux kernel: [ 8.330539] BIOS EDD facility v0.16
2004-Jun-25, 0 devices found
Oct 28 19:47:08 linux kernel: [ 8.330541] EDD information not available.
Oct 28 19:47:08 linux kernel: [ 8.959184] microcode: CPU0: new
patch_level=0x010000c8
Oct 28 19:47:08 linux kernel: [ 8.959198] microcode: CPU1:
patch_level=0x00000000
Oct 28 19:47:08 linux kernel: [ 8.959764] microcode: CPU1: new
patch_level=0x010000c8
Oct 28 19:47:08 linux kernel: [ 8.959776] microcode: CPU2:
patch_level=0x00000000
Oct 28 19:47:08 linux kernel: [ 8.960090] microcode: CPU2: new
patch_level=0x010000c8
Oct 28 19:47:08 linux kernel: [ 8.960098] microcode: CPU3:
patch_level=0x00000000
Oct 28 19:47:08 linux kernel: [ 8.960341] microcode: CPU3: new
patch_level=0x010000c8
Oct 28 19:47:08 linux kernel: [ 8.960380] microcode: Microcode Update
Driver: v2.00 <tigran@xxxxxxxxxxxxxxxxxxxx>, Peter Oruba
....[ the boot freezes here when it does freeze (not this time obviously ]...

Oct 28 19:47:08 linux kernel: [ 9.076327] input: Power Button as
/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input3
Oct 28 19:47:08 linux kernel: [ 9.076384] ACPI: Power Button [PWRB]
Oct 28 19:47:08 linux kernel: [ 9.076481] input: Power Button as
/devices/LNXSYSTM:00/LNXPWRBN:00/input/input4
Oct 28 19:47:08 linux kernel: [ 9.076544] ACPI: Power Button [PWRF]


here is a sample from today (21-Mar-2013):
[ 8.589011] microcode: CPU0: patch_level=0x00000000
[ 10.177319] BIOS EDD facility v0.16 2004-Jun-25, 2 devices found
[ 10.288794] udevd[341]: starting version 182
[ 16.076361] wmi: Mapper loaded
[ 16.153551] powernow-k8: Found 1 AMD Athlon(tm) II X4 635 Processor (4 cpu
cores) (version 2.20.00)
[ 16.188574] microcode: CPU0: new patch_level=0x010000c8
[ 16.190159] microcode: CPU1: patch_level=0x00000000
[ 16.192195] microcode: CPU1: new patch_level=0x010000c8
[ 16.193780] microcode: CPU2: patch_level=0x00000000
[ 16.195834] microcode: CPU2: new patch_level=0x010000c8
[ 16.197393] microcode: CPU3: patch_level=0x00000000
[ 16.199356] microcode: CPU3: new patch_level=0x010000c8
[ 16.200931] microcode: Microcode Update Driver: v2.00
<tigran@xxxxxxxxxxxxxxxxxxxx>, Peter Oruba
[ 16.200936] powernow-k8: 0 : pstate 0 (2900 MHz)
[ 16.200941] powernow-k8: 1 : pstate 1 (2200 MHz)
[ 16.200943] powernow-k8: 2 : pstate 2 (1700 MHz)
[ 16.200944] powernow-k8: 3 : pstate 3 (800 MHz)
[ 16.354768] input: Power Button as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input3
[ 16.359939] ACPI: Power Button [PWRB]


Reproducible: Sometimes

Steps to Reproduce:
1. Boot computer
2. Hope it completes
Actual Results:
This is apparently a timing issue of some sort.

The computer that shows the worst case will not boot when cold; allow it to
warm for minute then a hard restart usually works.

Yet it fails to boot when fully warmed up, say, a restart after updates. Then a
bit of cooling time is needed. But not too much. Ack!


Expected Results:
It completes booting up normally.

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