From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by ozlabs.org (Postfix) with SMTP id 97781DE15C for ; Thu, 20 Mar 2008 09:31:47 +1100 (EST) Content-Type: text/plain; charset="iso-8859-1" Date: Wed, 19 Mar 2008 23:31:45 +0100 From: "Gerhard Pircher" In-Reply-To: <556445368AFA1C438794ABDA8901891C084C2113@USA0300MS03.na.xerox.net> Message-ID: <20080319223145.249840@gmx.net> MIME-Version: 1.0 References: <556445368AFA1C438794ABDA8901891C084C2113@USA0300MS03.na.xerox.net> Subject: Re: 7448/2.6.20 problems (double boots or hangs) To: "Leisner, Martin" , linuxppc-dev@ozlabs.org Cc: Nathan.Lund@xerox.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , -------- Original-Nachricht -------- > Datum: Wed, 19 Mar 2008 17:52:16 -0400 > Von: "Leisner, Martin" > An: linuxppc-dev@ozlabs.org > CC: "Lund, Nathan \\(Nathan.Lund@usa.xerox.com\\)" > Betreff: 7448/2.6.20 problems (double boots or hangs) > My taiga board is now dead -- on our development board (with a taiga > kernel > and a custom modified dts) we see either > > > 1) it hangs at the same point ("PID has table entries") > or > 2) it boots but it seems to restart the boot process after the "PID hash > table entries line" I observed the same behavior on my AmigaOne, if the PAGE_COHERENT flag was set for page mappings by CPU_FTR_NEED_COHERENT. The 7448 CPU doesn't need CPU_FTR_NEED_COHERENT to be set (no CPU bug that needs to be worked around), but there is no define for the 7448 in arch/powerpc/cputable.h in kernel v2.6.20 (but it's in v2.6.22!). Thus I guess it is detected as a 744[0|5|7], which have this flag set. On the other side my hardware is _very_ buggy, so it's unlikely that this could be the problem on your hardware. Gerhard -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger