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From: Ulrich Teichert <krypton@ulrich-teichert.org>
To: torvalds@linux-foundation.org (Linus Torvalds)
Cc: krypton@ulrich-teichert.org (Ulrich Teichert),
	mcree@orcon.net.nz (Michael Cree),
	linux@roeck-us.net (Guenter Roeck),
	rth@twiddle.net (Richard Henderson),
	ink@jurassic.park.msu.ru (Ivan Kokshaysky),
	mattst88@gmail.com (Matt Turner),
	James.Bottomley@hansenpartnership.com (James E . J . Bottomley),
	deller@gmx.de (Helge Deller),
	davem@davemloft.net (David S . Miller),
	kuba@kernel.org (Jakub Kicinski),
	linux-alpha@vger.kernel.org (alpha),
	geert@linux-m68k.org (Geert Uytterhoeven),
	linux-kernel@vger.kernel.org (Linux Kernel Mailing List),
	linux-parisc@vger.kernel.org (linux-parisc),
	netdev@vger.kernel.org (Netdev),
	linux-sparse@vger.kernel.org (Sparse Mailing-list)
Subject: Re: [PATCH v2 0/4] Introduce and use absolute_pointer macro
Date: Wed, 22 Sep 2021 22:50:23 +0200 (CEST)	[thread overview]
Message-ID: <202109222050.18MKoNUh007272@valdese.nms.ulrich-teichert.org> (raw)
In-Reply-To: <CAHk-=whwreptD=WByMRNsv-gfqR3oUu4v33i5Swd2dyeLObyRw@mail.gmail.com>

Hi,

> > I would try the SRM bootimage (make bootimage), but the build is broken:
> 
> The attached patch is too ugly for words, and there's no way I will
> commit anything like this.
> 
> But it at least builds for and seems to successfully make an alpha
> bootimage even when cross-compiling on x86-64.
> 
> So something to test, perhaps..

Sure, I burned it to a CDROM and booted from that per SRM. The screen
went black for a second, then the SRM console came back with:

?05 HLT INSTR
PC=00000000.20000014 PSL= 00000000.00000007

I wonder if we would be able to see more on a serial line - I can try
that perhaps tomorrow or at the weekend. To find out to what code the
PC is pointing to, I would need to understand to what point in memory SRM
loads the image into.... But this way, the process of loading the kernel
definitely worked - I still don't understand why aboot can load the
old kernel but not the new one. I'll have a look at the aboot sources,
perhaps there's a certain limit on kernel size?

I'm not sure if we can call this progress,
CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de | Listening to:
Stormweg 24               |Eat Lipstick: Dirty Little Secret, The Baboon Show:
24539 Neumuenster, Germany|Work Work Work, The Bellrays: Bad Reaction

WARNING: multiple messages have this Message-ID (diff)
From: Ulrich Teichert <krypton@ulrich-teichert.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ulrich Teichert <krypton@ulrich-teichert.org>,
	Michael Cree <mcree@orcon.net.nz>,
	Guenter Roeck <linux@roeck-us.net>,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	"James E . J . Bottomley" <James.Bottomley@hansenpartnership.com>,
	Helge Deller <deller@gmx.de>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	alpha <linux-alpha@vger.kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	Netdev <netdev@vger.kernel.org>,
	Sparse Mailing-list <linux-sparse@vger.kernel.org>
Subject: Re: [PATCH v2 0/4] Introduce and use absolute_pointer macro
Date: Wed, 22 Sep 2021 22:50:23 +0200 (CEST)	[thread overview]
Message-ID: <202109222050.18MKoNUh007272@valdese.nms.ulrich-teichert.org> (raw)
In-Reply-To: <CAHk-=whwreptD=WByMRNsv-gfqR3oUu4v33i5Swd2dyeLObyRw@mail.gmail.com>

Hi,

> > I would try the SRM bootimage (make bootimage), but the build is broken:
> 
> The attached patch is too ugly for words, and there's no way I will
> commit anything like this.
> 
> But it at least builds for and seems to successfully make an alpha
> bootimage even when cross-compiling on x86-64.
> 
> So something to test, perhaps..

Sure, I burned it to a CDROM and booted from that per SRM. The screen
went black for a second, then the SRM console came back with:

?05 HLT INSTR
PC=00000000.20000014 PSL= 00000000.00000007

I wonder if we would be able to see more on a serial line - I can try
that perhaps tomorrow or at the weekend. To find out to what code the
PC is pointing to, I would need to understand to what point in memory SRM
loads the image into.... But this way, the process of loading the kernel
definitely worked - I still don't understand why aboot can load the
old kernel but not the new one. I'll have a look at the aboot sources,
perhaps there's a certain limit on kernel size?

I'm not sure if we can call this progress,
CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de | Listening to:
Stormweg 24               |Eat Lipstick: Dirty Little Secret, The Baboon Show:
24539 Neumuenster, Germany|Work Work Work, The Bellrays: Bad Reaction

  reply	other threads:[~2021-09-22 20:50 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-15  3:52 [PATCH v2 0/4] Introduce and use absolute_pointer macro Guenter Roeck
2021-09-15  3:52 ` [PATCH v2 1/4] compiler.h: Introduce " Guenter Roeck
2021-09-15  7:07   ` Geert Uytterhoeven
2021-09-15  7:13   ` Geert Uytterhoeven
2021-09-15  7:13     ` Geert Uytterhoeven
2021-09-15 14:03     ` Guenter Roeck
2021-09-15 14:03       ` Guenter Roeck
2021-09-15  3:52 ` [PATCH v2 2/4] net: i825xx: Use absolute_pointer for memcpy from fixed memory location Guenter Roeck
2021-09-15  7:08   ` Geert Uytterhoeven
2021-09-15  3:52 ` [PATCH v2 3/4] alpha: Move setup.h out of uapi Guenter Roeck
2021-09-15  3:52 ` [PATCH v2 4/4] alpha: Use absolute_pointer to define COMMAND_LINE Guenter Roeck
2021-09-15 19:18 ` [PATCH v2 0/4] Introduce and use absolute_pointer macro Linus Torvalds
2021-09-15 19:35   ` Guenter Roeck
2021-09-15 19:47     ` Linus Torvalds
2021-09-15 19:50       ` Linus Torvalds
2021-09-15 21:19         ` Linus Torvalds
2021-09-16  7:02           ` Anders Larsen
2021-09-16 16:25             ` Linus Torvalds
2021-09-15 20:30       ` Helge Deller
2021-09-15 22:33       ` Guenter Roeck
2021-09-16 18:35         ` Linus Torvalds
2021-09-18  9:51           ` Michael Cree
2021-09-18 13:11             ` Ulrich Teichert
2021-09-18 13:11               ` Ulrich Teichert
2021-09-18 17:04               ` Linus Torvalds
2021-09-18 17:17                 ` Thorsten Glaser
2021-09-18 17:21                   ` Linus Torvalds
2021-09-18 17:28                 ` Linus Torvalds
2021-09-18 20:26                 ` Ulrich Teichert
2021-09-18 20:26                   ` Ulrich Teichert
2021-09-18 20:46                   ` Linus Torvalds
2021-09-18 21:12                     ` Linus Torvalds
2021-09-18 22:09                   ` Linus Torvalds
2021-09-19 15:13                     ` Dave Taht
2021-09-19 15:13                       ` Dave Taht
2021-09-20 18:25                     ` Ulrich Teichert
2021-09-20 18:25                       ` Ulrich Teichert
2021-09-20 18:46                       ` Linus Torvalds
2021-09-20 18:59                         ` Matt Turner
2021-09-20 19:45                           ` Linus Torvalds
2021-09-21 19:13                         ` Ulrich Teichert
2021-09-21 19:13                           ` Ulrich Teichert
2021-09-21 20:42                           ` Linus Torvalds
2021-09-21 21:39                           ` Linus Torvalds
2021-09-22 20:50                             ` Ulrich Teichert [this message]
2021-09-22 20:50                               ` Ulrich Teichert
2021-09-23 19:57                               ` Newer kernels on the Jensen (was: [PATCH v2 0/4] Introduce and use absolute_pointer macro) Ulrich Teichert
2021-09-25 21:01                                 ` John Paul Adrian Glaubitz
2021-09-26 11:26                                   ` Newer kernels on the Jensen (was: [PATCH v2 0/4] Introduce and Ulrich Teichert
2021-09-26 11:35                                     ` John Paul Adrian Glaubitz
2021-09-26 11:55                                       ` John Paul Adrian Glaubitz
2021-09-26 17:12                                         ` Ulrich Teichert
2021-09-26 17:16                                           ` John Paul Adrian Glaubitz
2021-10-02 15:30                                             ` John Paul Adrian Glaubitz
2021-10-18 15:37                                     ` John Paul Adrian Glaubitz
2021-10-19 19:46                                       ` Ulrich Teichert
2021-10-22  8:46                                         ` John Paul Adrian Glaubitz
2021-10-24  3:41                                           ` Maciej W. Rozycki
2021-09-16 19:47         ` [PATCH v2 0/4] Introduce and use absolute_pointer macro Linus Torvalds
2021-09-16  0:34   ` Michael Cree

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