linux-kernel - Re: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp

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Message-ID: <55018AE7.4070207@list.ru>
Date:	Thu, 12 Mar 2015 15:47:35 +0300
From:	Stas Sergeev <stsp@...t.ru>
To:	Peter Hurley <peter@...leysoftware.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>
CC:	Catalin Marinas <catalin.marinas@....com>,
	Linux kernel <linux-kernel@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash
 on armada-xp

12.03.2015 15:33, Peter Hurley пишет:
> On 03/11/2015 10:24 AM, Stas Sergeev wrote:
>> However, while testing, I've suddenly got another crash happened
>> a bit earlier than the previous one used to happen: (OOM? How??)
>> ---
>> [    0.000000] Booting Linux on physical CPU 0x0
>> [    0.000000] Linux version 4.0.0-rc2-00137-gb672c98-dirty
>> (root@...t-010-117) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) )
>> #2 SMP 5
>> [    0.000000] CPU: ARMv7 Processor [562f5842] revision 2 (ARMv7),
>> cr=10c5387d
>> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction
>> cache
>> [    0.000000] Machine model: Marvell Armada XP Development Board
>> DB-MV784MP-GP
>> [    0.000000] Ignoring memory block 0x100000000 - 0x200000000
> Once you patch your bootloader, you'll want to configure your kernel
> for CONFIG_ARM_LPAE=y to enable the high 4GB of memory you have, as
> it's being ignored in this config right now (as shown above and in
> the oom message below).
Hi Peter, thanks for this hint.
I actually already tried with lpae, and, except for the missing
256Mb, everything works properly. :)
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