From: Merlin Hughes <lnx@merlin.org>
To: Allen Martin <AMartin@nvidia.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.4.23-pre4 add support for udma6 to nForce IDE drive r
Date: Fri, 19 Sep 2003 19:34:55 -0400 [thread overview]
Message-ID: <20030919233457.255C2338D9@primary.mx.nitric.com> (raw)
In-Reply-To: <8F12FC8F99F4404BA86AC90CD0BFB04F039F7147@mail-sc-6.nvidia.com>
r/AMartin@nvidia.com/2003.09.19/16:08:55
>> Since applying your patch, however, I've managed to run such
>> a dd, with zcav thrown in, with complete relability at UDMA133
>> for several hours without problems.
>
>While I'm certainly happy to hear that, I don't think I can take credit.
>Nothing in the patch should help with system stability issues.
>
>Do you have ACPI turned on? Look at /proc/interrupts and see if any PCI
>interrupts are set to edge triggered mode. That's the #1 cause of stability
>problems on nForce systems.
Interesting; lots of ACPI edge-triggered interrupts:
dagda:~# cat /proc/interrupts
CPU0
0: 519365 IO-APIC-edge timer
1: 16713 IO-APIC-edge keyboard
2: 0 XT-PIC cascade
8: 4 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
14: 863415 IO-APIC-edge ide0
15: 201651 IO-APIC-edge ide1
19: 306188 IO-APIC-level nvidia
20: 57261 IO-APIC-level usb-ohci, eth0
21: 0 IO-APIC-level ehci_hcd, NVidia nForce2
22: 3 IO-APIC-level usb-ohci, ohci1394
NMI: 0
LOC: 519312
ERR: 0
MIS: 0
... but no stability problems since the primary drive has been
running at UDMA133. Earlier UDMA100 freezes were completely
repeatable; identical kernel, just without your two patches.
This is a fairly fresh reboot; earlier I had the machine writing
DVDs, hitting firewire (iPod) and USB 2.0 (memory stick pro) drives,
and so forth, without issue.
AMD_IDE: nVidia Corporation nForce2 IDE (rev a2) UDMA133 controller on pci00:09.0
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA
hda: Maxtor 6Y160P0, ATA DISK drive
blk: queue c02b75e0, I/O limit 4095Mb (mask 0xffffffff)
hdc: PIONEER DVD-RW DVR-106D, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 320173056 sectors (163929 MB) w/7936KiB Cache, CHS=19929/255/63, UDMA(133)
I take it that I should boot with noapic in future to be safe.
Thanks, Merlin
next prev parent reply other threads:[~2003-09-19 23:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-19 23:08 Allen Martin
2003-09-19 23:34 ` Merlin Hughes [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-09-19 23:49 Allen Martin
2003-09-20 2:26 ` Merlin Hughes
2003-09-20 8:33 ` Andrew de Quincey
2003-09-18 4:09 Allen Martin
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