From: Sascha Hauer <s.hauer@pengutronix.de> To: Alexander Shiyan <shc_work@mail.ru> Cc: barebox@lists.infradead.org Subject: Re: ARM bootm regression Date: Wed, 21 Oct 2020 16:44:04 +0200 [thread overview] Message-ID: <20201021144404.GJ26805@pengutronix.de> (raw) In-Reply-To: <1602838156.455713761@f185.i.mail.ru> On Fri, Oct 16, 2020 at 11:49:16AM +0300, Alexander Shiyan wrote: > Hello. > > Found a regression in arm/lib32/bootm.c after a patch > "ARM: bootm: make sure we place the kernel in free memory". > > The initial memory size for the board is set to 8 MB (before reading the real value from DT), You could read the real value from DT earlier using libfdt, see arch/arm/cpu/board-dt-2nd.c for usage examples. That doesn't solve it of course when your board really has only 8MB memory. > so the stack, malloc_space, etc. are placed in the initial 8M space. > Then get_kernel_addresses() gets the real SDRAM area (for my board it is 64M), > but decreases this size by the first children size (malloc_space), > so mem_end is incorrect in this case. Does an additional: if (kaddr < mem_start) kaddr = mem_start; help? Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2020-10-21 14:44 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-16 8:49 Alexander Shiyan 2020-10-19 9:05 ` Sascha Hauer 2020-10-19 9:38 ` Alexander Shiyan 2020-10-21 14:44 ` Sascha Hauer [this message] 2020-10-22 6:13 ` Alexander Shiyan 2020-10-22 7:26 ` Sascha Hauer
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