* [gentoo-dev] Need an x86 tester with >=1GB RAM (and some time to spare)
@ 2005-09-01 19:38 Daniel Drake
2005-09-01 22:42 ` Jeff Walter
0 siblings, 1 reply; 3+ messages in thread
From: Daniel Drake @ 2005-09-01 19:38 UTC (permalink / raw
To: gentoo-dev
Hi,
Theres a bug filed against gentoo-sources-2.6 which causes the system to be
unreliable when running the 64GB highmem option. This bug isn't present in the
vanilla kernels so it must be caused by one of the patches we apply, but I
don't know which this might be.
To see this bug, you need to have _some_ highmem in the system (this means >=
1GB total physical RAM), be running on x86 (other arches dont have HIGHMEM
option), and have the 64GB high memory support option enabled. (4gb is fine,
as is lowmem)
I've had this bug reproduced by a few different people, but none of them with
enough time to help me diagnose this. I only have 512mb myself so I can't help.
If anyone has the appropriate hardware and some time to spare slowly reverting
out the Gentoo patches to help diagnose the problem, please take a look at
http://bugs.gentoo.org/show_bug.cgi?id=101359
Thanks!
Daniel
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* Re: [gentoo-dev] Need an x86 tester with >=1GB RAM (and some time to spare)
2005-09-01 19:38 [gentoo-dev] Need an x86 tester with >=1GB RAM (and some time to spare) Daniel Drake
@ 2005-09-01 22:42 ` Jeff Walter
2005-09-02 19:27 ` Jeff Walter
0 siblings, 1 reply; 3+ messages in thread
From: Jeff Walter @ 2005-09-01 22:42 UTC (permalink / raw
To: gentoo-dev
Daniel Drake wrote:
> To see this bug, you need to have _some_ highmem in the system (this
> means >= 1GB total physical RAM), be running on x86 (other arches dont
> have HIGHMEM option), and have the 64GB high memory support option
> enabled. (4gb is fine, as is lowmem)
I currently have 1GB of RAM with the 4GB HIMEM on 2.6.12-gentoo-r9. I
can play with it.
> I've had this bug reproduced by a few different people, but none of them
> with enough time to help me diagnose this. I only have 512mb myself so I
> can't help.
Sounds like it's time to upgrade ;-)
> If anyone has the appropriate hardware and some time to spare slowly
> reverting out the Gentoo patches to help diagnose the problem, please
> take a look at http://bugs.gentoo.org/show_bug.cgi?id=101359
I can definitely do that on one of my days off work (Mondays and
Tuesdays). Shouldn't be terribly difficult with the newer, smaller
patchset.
--
Jeff Walter
Gentoo Developer
jeffw@gentoo.org
http://gentoo.org/~jeffw/
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* Re: [gentoo-dev] Need an x86 tester with >=1GB RAM (and some time to spare)
2005-09-01 22:42 ` Jeff Walter
@ 2005-09-02 19:27 ` Jeff Walter
0 siblings, 0 replies; 3+ messages in thread
From: Jeff Walter @ 2005-09-02 19:27 UTC (permalink / raw
To: gentoo-dev
Ok...
Linux oneill 2.6.13-gentoo-hugemem #3 Fri Sep 2 11:41:01 PDT 2005 i686
AMD Athlon(tm) XP 2800+ AuthenticAMD GNU/Linux
Linux version 2.6.13-gentoo-hugemem (root@oneill) (gcc version
3.3.5-20050130 (Gentoo 3.3.5.20050130-r1, ssp-3.3.5.20050130-1,
pie-8.7.7.1)) #3 Fri Sep 2 11:41:01 PDT 2005
This is with:
# CONFIG_NOHIGHMEM is not set
# CONFIG_HIGHMEM4G is not set
CONFIG_HIGHMEM64G=y
CONFIG_HIGHMEM=y
CONFIG_X86_PAE=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
System boots just fine. The only thing I didn't do was use genkernel.
Guess I'll give that a whirl, see if my results differ.
--
Jeff Walter
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2005-09-01 19:38 [gentoo-dev] Need an x86 tester with >=1GB RAM (and some time to spare) Daniel Drake
2005-09-01 22:42 ` Jeff Walter
2005-09-02 19:27 ` Jeff Walter
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