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From: Freddy Lugo <wilflugo@yahoo.com>
To: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Uncompress Ok, but cannot run linux kernel...
Date: Tue, 8 May 2001 06:50:03 -0700 (PDT)	[thread overview]
Message-ID: <20010508135003.34130.qmail@web9906.mail.yahoo.com> (raw)
In-Reply-To: <439B3F1E9095D41193DE00D0B74FF30601CE7900@xpr01.prd.hp.com>


> turn_on_mmu:
>     .....
>     SYNC
>     RFI


I am dealing with same problem.  After the rfi (on
turn_on_mmu) instruction an signal is generated and
the progam counter is lost.  When performing an rfi
most of the bits of the SRR1 registers become the MSR
bits and the SRR0 register become the next instruction
pointer (NIA).  I read the manual and if the new MSR
value enables some pending exceptions then this
exceptions are processed by exception priority.  The
bits modified after the rfi are MSR_IR & MSR_DR so I
think (I am not sure yet) this bits enables a waiting
exception of some kind and when the rfi is processed
the exception is executed.  gdb only said it recevies
a SIGSTOP signal.  I will be working with that today.
If I found anything I will let you know.

Thanks

Freddy Lugo


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

       reply	other threads:[~2001-05-08 13:50 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <439B3F1E9095D41193DE00D0B74FF30601CE7900@xpr01.prd.hp.com>
2001-05-08 13:50 ` Freddy Lugo [this message]
2001-05-08 15:21   ` Uncompress Ok, but cannot run linux kernel Wolfgang Denk
2001-05-08 21:21     ` Freddy Lugo
2001-05-10  3:40 machael thailer
2001-05-10  4:16 ` Paul White
  -- strict thread matches above, loose matches on Subject: below --
2001-05-08 10:43 Zehetbauer Thomas
2001-05-08 11:51 ` machael thailer
2001-05-06  1:01 machael thailer
2001-05-07 19:10 ` Dan Malek
2001-05-08  1:36   ` machael thailer
2001-05-10  3:08   ` machael thailer
2001-05-10 10:45     ` Matt Porter
2001-05-08  0:58 ` Michael Habermann
2001-05-08  1:16   ` Dan Malek
2001-05-08  8:02     ` Michael Habermann
2001-05-08  8:06       ` machael thailer
2001-05-08  8:43         ` Wolfgang Denk
2001-05-08 10:06           ` machael thailer

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