From: Jes Sorensen <jes@sunsite.dk>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] IA64 Linux issues
Date: Mon, 30 Jul 2001 22:12:07 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005956@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005948@msgid-missing>
>>>>> "Van" = Van Maren, Kevin <kevin.vanmaren@unisys.com> writes:
Van> I'm running Caldera's 6/20/01 snapshot (modified 2.4.4 kernel) on
Van> a 4X, 8GB Lion.
Van> Under even "light" I/O load (mkfs to 2-4 disks) I get horiffic
Van> behavior -- basically what is described on this thread:
Van> http://www.cs.helsinki.fi/linux/linux-kernel/2001-20/0763.html
Van> [I/O drops down to < 300 I/Os per second (vmstat), but all the
Van> CPUs are pegged 99%+ system time.]
Van> That is after I first used "swiotlb\x10240" at elilo to avoid the
Van> panic, and then hacked the qlogicfc driver (patch at bottom) and
Van> applied the latest Adaptec driver patch (6.2.0) from freebsd.org
Van> to get 39-bit DMA. Problem occurs with 39160 & QL2200.
I'd stay away from the qlogicfc.c driver, it's got all sorts of
limitations.
Jes
next prev parent reply other threads:[~2001-07-30 22:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-28 8:03 [Linux-ia64] IA64 Linux issues Van Maren, Kevin
2001-07-30 22:12 ` Jes Sorensen [this message]
2001-07-30 23:34 ` Van Maren, Kevin
2001-07-31 0:17 ` Jes Sorensen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=marc-linux-ia64-105590693005956@msgid-missing \
--to=jes@sunsite.dk \
--cc=linux-ia64@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox