From: "Kevin D. Kissell" <kevink@mips.com>
To: <paul@patton.com>, "James Simmons" <jsimmons@transvirtual.com>
Cc: "Jun Sun" <jsun@mvista.com>, <linux-mips@oss.sgi.com>,
<linux-mips-kernel@lists.sourceforge.net>
Subject: Re: sys_mips problems
Date: Wed, 1 Aug 2001 15:37:32 +0200 [thread overview]
Message-ID: <019701c11a8f$2561daa0$0deca8c0@Ulysses> (raw)
In-Reply-To: 3B67F510.A0CFB4E7@patton.com
> > > > Since I was having problems with everything sefaulting due to the
sys_mips
> > > > bug I tried the patch floating around. It fixed the segfault problem
but
> > > > instead I get this error. Anyone knows why?
> > > >
> > > > : error while loading shared libraries: libc.so.6: cannot stat
shared
> > > > object: Error 14
> > >
> > > Which patch did you use?
> >
> > The fast_sysmips one.
> >
> > > Does your CPU have ll/sc instructions?
> >
> > I have a cobalt cube which has a MIPS Nevada chip which is a R52xx chip.
I
> > don't know if it does. By default I have ll/sc and lld/scd instructions
> > enabled.
>
> I don't know which R52xx chip you have, but my QED RM5261 has ll/sc but
> no mention of lld/scd instructions.
The RM52xx families are MIPS IV ISA devices, and lld/scd are
MIPS III (and therefore MIPS IV) instructions. You've got 'em.
But you won't be able to use them in User mode unless the UX
bit of the CP0.Status register is set, which also turns on 64-bit
addressing, for which I rather doubt that your kernel is prepared.
User mode code should use only the 32-bit ll/sc's. Not that it
sounds like that has anything to do with the problem reported
here, mind you...
Kevin K.
WARNING: multiple messages have this Message-ID (diff)
From: "Kevin D. Kissell" <kevink@mips.com>
To: paul@patton.com, James Simmons <jsimmons@transvirtual.com>
Cc: Jun Sun <jsun@mvista.com>,
linux-mips@oss.sgi.com, linux-mips-kernel@lists.sourceforge.net
Subject: Re: sys_mips problems
Date: Wed, 1 Aug 2001 15:37:32 +0200 [thread overview]
Message-ID: <019701c11a8f$2561daa0$0deca8c0@Ulysses> (raw)
Message-ID: <20010801133732.AFKydLO571GoUt0-UEWcTzDOiENAiwpO6UPQJIJkRiY@z> (raw)
In-Reply-To: 3B67F510.A0CFB4E7@patton.com
> > > > Since I was having problems with everything sefaulting due to the
sys_mips
> > > > bug I tried the patch floating around. It fixed the segfault problem
but
> > > > instead I get this error. Anyone knows why?
> > > >
> > > > : error while loading shared libraries: libc.so.6: cannot stat
shared
> > > > object: Error 14
> > >
> > > Which patch did you use?
> >
> > The fast_sysmips one.
> >
> > > Does your CPU have ll/sc instructions?
> >
> > I have a cobalt cube which has a MIPS Nevada chip which is a R52xx chip.
I
> > don't know if it does. By default I have ll/sc and lld/scd instructions
> > enabled.
>
> I don't know which R52xx chip you have, but my QED RM5261 has ll/sc but
> no mention of lld/scd instructions.
The RM52xx families are MIPS IV ISA devices, and lld/scd are
MIPS III (and therefore MIPS IV) instructions. You've got 'em.
But you won't be able to use them in User mode unless the UX
bit of the CP0.Status register is set, which also turns on 64-bit
addressing, for which I rather doubt that your kernel is prepared.
User mode code should use only the 32-bit ll/sc's. Not that it
sounds like that has anything to do with the problem reported
here, mind you...
Kevin K.
next prev parent reply other threads:[~2001-08-01 13:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-31 20:59 sys_mips problems James Simmons
2001-07-31 21:07 ` Jun Sun
2001-07-31 21:43 ` James Simmons
2001-08-01 12:24 ` Paul Kasper
2001-08-01 13:37 ` Kevin D. Kissell [this message]
2001-08-01 13:37 ` Kevin D. Kissell
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='019701c11a8f$2561daa0$0deca8c0@Ulysses' \
--to=kevink@mips.com \
--cc=jsimmons@transvirtual.com \
--cc=jsun@mvista.com \
--cc=linux-mips-kernel@lists.sourceforge.net \
--cc=linux-mips@oss.sgi.com \
--cc=paul@patton.com \
/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