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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Maxime Bizon <mbizon@freebox.fr>
Cc: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: Fail to boot 5.15 on mpc8347 with either debug_pagealloc or nobats
Date: Tue, 7 Dec 2021 05:54:40 +0000	[thread overview]
Message-ID: <a4e18c79-fff0-df8b-8d76-c2acf6e741bb@csgroup.eu> (raw)
In-Reply-To: <20211205164217.GA29658@sakura>



Le 05/12/2021 à 17:42, Maxime Bizon a écrit :
> 
> 
> On Saturday 04 Dec 2021 à 17:42:44 (+0000), Christophe Leroy wrote:
> 
> Also when mem=2G, I have physical memory mapped twice:
> 
> CONFIG_PAGE_OFFSET=0x80000000
> CONFIG_LOWMEM_SIZE=0x60000000
> 
> 0: 0x80000000-0x8fffffff 0x00000000       256M Kernel rw      m
> 1: 0x90000000-0x9fffffff 0x10000000       256M Kernel rw      m
> 2: 0xa0000000-0xafffffff 0x20000000       256M Kernel rw      m
> 3: 0xb0000000-0xbfffffff 0x30000000       256M Kernel rw      m
> 4: 0xc0000000-0xcfffffff 0x40000000       256M Kernel rw      m
> 5: 0xd0000000-0xdfffffff 0x50000000       256M Kernel rw      m
> 6: 0xf0000000-0xf7ffffff 0x50000000       128M Kernel rw      m
> 
> BAT5 comes from __mmu_mapin_ram(), BAT6 from kasan init
> 
> Is BAT5 needed here ?

Did you check with my latest patch (v2) ?

It should now allocate a block outside lowmem, most likely 0x78000000.

Christophe

  parent reply	other threads:[~2021-12-07  5:55 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <f23763d551e65d4a225ba13c7898f83853c2aeaf.camel@freebox.fr>
2021-12-03 12:49 ` Fail to boot 5.15 on mpc8347 with either debug_pagealloc or nobats Christophe Leroy
2021-12-03 18:43   ` Maxime Bizon
2021-12-04 10:01     ` Christophe Leroy
2021-12-04 14:10       ` Maxime Bizon
2021-12-04 17:42         ` Christophe Leroy
2021-12-05 16:42           ` Maxime Bizon
2021-12-05 18:11             ` Christophe Leroy
2021-12-05 21:44               ` Maxime Bizon
2021-12-06  7:03                 ` Christophe Leroy
2021-12-06  8:47                   ` Maxime Bizon
2021-12-06  9:07                     ` Christophe Leroy
2021-12-06 10:32                       ` Maxime Bizon
2021-12-06 14:22                         ` Christophe Leroy
2021-12-06 15:48                           ` Maxime Bizon
2021-12-07  5:50                             ` Christophe Leroy
2021-12-07  6:11                               ` Christophe Leroy
2021-12-12 11:21                                 ` Maxime Bizon
2021-12-07  5:54             ` Christophe Leroy [this message]
2021-12-07  9:04               ` Maxime Bizon

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