linux-kernel - 2.6.27.7 built for Geode: Clock drift

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 02 Dec 2008 19:36:07 +0100
From:	Harald Dunkel <harald.dunkel@...nline.de>
To:	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: 2.6.27.7 built for Geode: Clock drift

Hi folks,

If I build a kernel for AMD Geode, then I see a clock drift of appr.
30 min. to 1 hour per day. If I build the same kernel for i486, then
the clock drift is gone. Running ntp makes no difference.

Hardware is a Linutop PC. /proc/cpuinfo says

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 5
model           : 10
model name      : Geode(TM) Integrated Processor by AMD PCS
stepping        : 2
cpu MHz         : 0.000
cache size      : 128 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu de pse tsc msr cx8 sep pge cmov clflush mmx mmxext 3dnowext 3dnow
bogomips        : 429.05
clflush size    : 32
power management:

BTW, the CPU is running with 500 MHz (AFAIK). 0.000 MHz is surely not
correct. /proc/cpuinfo reports the same for both kernels.

Attached is the diff of the config files. Please mail if you are
interested in the complete config files, or if I can help to track
this down.

Regards

Harri

View attachment "config.diff" of type "text/x-diff" (1905 bytes)