Opened 16 years ago
Closed 16 years ago
#2349 closed bug (fixed)
Core 2 Duo does not run properly with 4gb RAM - MTRR issue
| Reported by: | umccullough | Owned by: | axeld |
|---|---|---|---|
| Priority: | normal | Milestone: | R1 |
| Component: | System/Kernel | Version: | R1/pre-alpha1 |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Platform: | All |
Description
Received a KDL on boot using my Core 2 Duo (dual core) using Haiku hrev25834:
PANIC: page fault, but interrupts were disabled. Touching address 0xccccccd8 from eip 0x8003b6aa
Machine specs:
Core 2 Duo E6750 on ECS G33T-M2 board w/4gb RAM and 500gb SATA w/SATA DVD-RW drive. Keyboard and mouse are PS/2.
This machine previously booted with Haiku, but I had to change out the ide bus manager for ata in order to get through a boot, and then it ran REALLY slowly, like took 10 minutes to boot, and ran like it was at 100% CPU all the time.
Will try the ata bus manager again to see if that yields different results, otherwise see attached serial output.
Attachments (5)
Change History (17)
by , 16 years ago
| Attachment: | Haiku_r25834_gcc2_c2d_boot.txt added |
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comment:1 by , 16 years ago
Ok, it *does* boot when I swap "ide" with "ata" - but it still runs slow - the two processors hang out between 25-50% utilized, and moving the mouse around on the screen causes both to hit 100% easily.
It takes 10-15 seconds to open the leaf menu like this, but no one process appears to be using all the CPU.
What additional info can I provide for this?
comment:2 by , 16 years ago
Yanking out 2gb seems to have improved the situation drastically. It now runs at reasonable speed (400fps in GLTeapot).
Still requires "ata" bus manager though, as "ide" bus manager just hangs at 4th icon (disk). But at least I no longer get the KDL.
Can anything be done about the 4gb+ ram issue then?
comment:3 by , 16 years ago
That still sounds like an MTRR issue to me. Not that I'm entirely sure, but Haiku should just ignore all memory it can't deal with. Unfortunately, I don't have any free slots anymore on my mainboard, and can't easily test this myself yet.
comment:5 by , 16 years ago
Yes, since it runs pretty well with < 4gb RAM - I'm definitely willing to concede that it's MTRR issue.
How many DIMM slots do you have, what kind of RAM does it take? What's your current configuration/brand?
I have a few extra 1gb DIMMs lying around - I'd probably be willing to send some your way. Otherwise I'm sure that I and a couple others would be willing to purchase you some RAM (2x2gb perhaps) and have it shipped if it would help get the MTRR and 4gb+ memory issue worked out (I've heard a couple others complaining about it, and I bet they'd put money where their mouth is).
by , 16 years ago
| Attachment: | Haiku_r25834_gcc2_c2d_boot_w_ata.txt added |
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hrev25834 with "ata" bus manager and 4gb RAM
comment:6 by , 16 years ago
Attached additional serial log (full log as suggested by korli) from the LONG boot (~9.5 minutes until desktop and icons loaded) using the "ata" bus manager and 4gb RAM installed.
Once loaded, Haiku ran exceptionally slowly with this configuration.
Same exact install with 2gb RAM runs seemingly fine.
by , 16 years ago
| Attachment: | Haiku_r25863_gcc2_c2d_ata_2gb.txt added |
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serial log from hrev25863 w/ata bus manager and 2gb RAM
by , 16 years ago
| Attachment: | Haiku_r25863_gcc2_c2d_ata_4gb.txt added |
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serial log from hrev25863 w/ata bus manager and 4gb RAM
comment:8 by , 16 years ago
Thanks - I attached two more serial logs for hrev25863, one with 2gb RAM, and one with 4gb RAM.
Haiku seems to run fast and stable with 4gb RAM now, and reports 2807MB RAM in the "About System" (I didn't check to see what it reported previously).
I also provided the Linux MTRR info as suggested in IRC.
Thanks!
I guess we can probably close this ticket now.
follow-up: 10 comment:9 by , 16 years ago
| Summary: | PANIC: page fault, but interrupts were disabled. Touching address 0xccccccd8 from eip 0x8003b6aa → Core 2 Duo does not run properly with 4gb RAM - MTRR issue |
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Actually, the original summary for this issue is still an issue, but it just boils down to the ide bus manager which works when replaced with the newer ata bus manager, so I'll just hijack my own ticket here and change the summary. Hopefully nobody minds.
comment:10 by , 16 years ago
Replying to umccullough:
Actually, the original summary for this issue is still an issue, but it just boils down to the ide bus manager which works when replaced with the newer ata bus manager, so I'll just hijack my own ticket here and change the summary. Hopefully nobody minds.
Can this bug be closed ?
comment:11 by , 16 years ago
Yes, I think it should.
I apologize for the confusion regarding two different issues.
Serial output for boot on hrev25834