From: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: gdb hangs on Linux 2.6.11 on 8xx
Date: Tue, 13 Sep 2005 14:22:13 -0300 [thread overview]
Message-ID: <20050913172213.GA3964@oops.ghostprotocols.net> (raw)
In-Reply-To: <20050913151132.GF10602@dmt.cnet>
Hi Marcelo,
after the last Chris post, I decided to double check if I wasn't doing
something wrong. vanilla 2.6.13 hangs in the same way my patched 2.6.10 does.
> How does the disassemble of __switch_to looks like?
from 2.6.13 kernel
Dump of assembler code for function __switch_to:
0xc00055a4 <__switch_to+0>: mflr r0
0xc00055a8 <__switch_to+4>: stwu r1,-16(r1)
0xc00055ac <__switch_to+8>: stw r31,12(r1)
0xc00055b0 <__switch_to+12>: mr r11,r4
0xc00055b4 <__switch_to+16>: stw r0,20(r1)
0xc00055b8 <__switch_to+20>: mfmsr r31
0xc00055bc <__switch_to+24>: rlwinm r0,r31,0,17,15
0xc00055c0 <__switch_to+28>: mtmsr r0
0xc00055c4 <__switch_to+32>: lwz r10,460(r4)
0xc00055c8 <__switch_to+36>: addi r3,r2,456
0xc00055cc <__switch_to+40>: addi r4,r4,456
0xc00055d0 <__switch_to+44>: cmpwi cr7,r10,0
0xc00055d4 <__switch_to+48>: beq- cr7,0xc00055e8 <__switch_to+68>
0xc00055d8 <__switch_to+52>: lis r9,-16354
0xc00055dc <__switch_to+56>: lwz r0,28880(r9)
0xc00055e0 <__switch_to+60>: cmpw cr7,r0,r11
0xc00055e4 <__switch_to+64>: beq- cr7,0xc0005604 <__switch_to+96>
0xc00055e8 <__switch_to+68>: bl 0xc0003024 <_switch>
0xc00055ec <__switch_to+72>: mtmsr r31
0xc00055f0 <__switch_to+76>: lwz r0,20(r1)
0xc00055f4 <__switch_to+80>: lwz r31,12(r1)
0xc00055f8 <__switch_to+84>: addi r1,r1,16
0xc00055fc <__switch_to+88>: mtlr r0
0xc0005600 <__switch_to+92>: blr
0xc0005604 <__switch_to+96>: lwz r0,132(r10)
0xc0005608 <__switch_to+100>: oris r0,r0,512
0xc000560c <__switch_to+104>: stw r0,132(r10)
0xc0005610 <__switch_to+108>: b 0xc00055e8 <__switch_to+68>
End of assembler dump.
> Chris oopsen is exactly what the 'icbi' patch fixes.
notice that what I'm having here is not an oops
but if for Chris works, I must be doing something wrong, sorry for the noise
--
Aristeu
next prev parent reply other threads:[~2005-09-13 18:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-13 9:06 gdb hangs on Linux 2.6.11 on 8xx Chris
2005-09-13 12:25 ` Aristeu Sergio Rozanski Filho
2005-09-13 14:15 ` Chris
2005-09-13 14:25 ` Marcelo Tosatti
2005-09-13 14:51 ` Aristeu Sergio Rozanski Filho
2005-09-13 16:27 ` Chris
2005-09-13 15:11 ` Marcelo Tosatti
2005-09-13 17:22 ` Aristeu Sergio Rozanski Filho [this message]
2005-09-13 18:04 ` Marcelo Tosatti
2005-09-14 15:42 ` Aristeu Sergio Rozanski Filho
2005-09-14 20:55 ` Marcelo Tosatti
2005-09-14 21:30 ` Aristeu Sergio Rozanski Filho
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