From: Matthias Reis <matthias.reis@hu-berlin.de>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Subject: Re: Crash in entry.S:resume on Atari ST
Date: Fri, 16 Sep 2016 16:47:46 +0200 [thread overview]
Message-ID: <20160916144746.GB6030@hu-berlin.de> (raw)
In-Reply-To: <87y42rx6t2.fsf@linux-m68k.org>
Hi Andreas,
On Fri, Sep 16, 2016 at 04:23:05PM +0200, Andreas Schwab wrote:
> > === hatari emulator output:
> > CPU=$48f2, VBL=6379, FrameCycles=86856, HBL=387, LineCycles=168, DSP=N/A
> > $000048f2 : 4e75 rts
> > r
> > D0 00000008 D1 00002200 D2 00005401 D3 00961EC8
> > D4 00000000 D5 00940020 D6 602E0206 D7 00E00030
> > A0 00865B68 A1 00961EEC A2 0080E000 A3 000026E4
> > A4 000045C0 A5 000045E4 A6 00004794 A7 00000000
> > USP 00000000 ISP 00000018
> > T=00 S=0 M=0 X=0 N=0 Z=0 V=0 C=0 IMASK=2 STP=0
>
> Given the value of SSP and the values loaded into D6/D7 (which match the
> ROM shadow at address 0), it is clear that SP was 0 at $48ea. So it
> looks like A1 is just pointing at a block of zeros, not at a valid task
> struct.
Maybe the allocation for the task struct failed? I will check that. Thanks for
your analysis!
Matthias
prev parent reply other threads:[~2016-09-16 14:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-15 22:35 Crash in entry.S:resume on Atari ST Matthias Reis
2016-09-16 6:39 ` Greg Ungerer
2016-09-16 13:53 ` Matthias Reis
2016-09-16 9:29 ` Andreas Schwab
2016-09-16 14:23 ` Andreas Schwab
2016-09-16 14:47 ` Matthias Reis [this message]
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