From: stsp@list•ru (Stas Sergeev)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp
Date: Wed, 11 Mar 2015 21:38:53 +0300 [thread overview]
Message-ID: <55008BBD.5010800@list.ru> (raw)
In-Reply-To: <20150311191118.1edb2ed8@free-electrons.com>
11.03.2015 21:11, Thomas Petazzoni ?????:
> Dear Stas Sergeev,
>
> On Wed, 11 Mar 2015 20:56:50 +0300, Stas Sergeev wrote:
>
>> It doesn't look like it works as intended.
>> Got the crash below.
>> Please note the mappings beyond 0xe0000000, so I wonder if
>> the option worked as expected?
> Are you sure you're not confusing virtual addresses and physical
> addresses?
OK, so I changed Russel's printk to the following way:
+printk("vmalloc: mapping page %p (0x%08lx000) at 0x%08lx 0x%08zx\n",
+ page, page_to_pfn(page), addr, __pa(addr));
(added __pa(addr)) and now I hope I am seeing the physical
addresses at the last column:
[ 19.023836] vmalloc: mapping page ef7f1fa0 (0x000bfc7d000) at
0xf04a3000 0x304a3000
[ 19.031515] vmalloc: mapping page ef7f3360 (0x000bfd1b000) at
0xf04a4000 0x304a4000
[ 19.039221] vmalloc: mapping page ef7f18e0 (0x000bfc47000) at
0xf04a5000 0x304a5000
and they do not exceed mem= option.
Not sure though if this was the right thing to do though. :)
Anyway, with mem=0xc000000 it seems to boot, so many
thanks to everyone!
I'll check the value of the register 0xf1020254 tomorrow and will post back.
next prev parent reply other threads:[~2015-03-11 18:38 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-10 16:54 [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp Stas Sergeev
2015-03-10 17:17 ` Catalin Marinas
2015-03-10 17:27 ` Stas Sergeev
2015-03-10 17:38 ` Russell King - ARM Linux
2015-03-10 18:31 ` Stas Sergeev
2015-03-10 18:54 ` Russell King - ARM Linux
2015-03-11 12:30 ` Stas Sergeev
2015-03-11 12:47 ` Russell King - ARM Linux
2015-03-11 14:24 ` Stas Sergeev
2015-03-11 16:30 ` Peter Hurley
2015-03-11 16:39 ` Stas Sergeev
2015-03-12 12:33 ` Peter Hurley
2015-03-12 12:47 ` Stas Sergeev
2015-03-12 13:04 ` Russell King - ARM Linux
2015-03-12 13:11 ` Stas Sergeev
2015-03-12 15:34 ` Vladimir Murzin
2015-03-12 12:59 ` Russell King - ARM Linux
2015-03-10 17:29 ` Russell King - ARM Linux
2015-03-10 17:35 ` Peter Hurley
2015-03-10 17:51 ` Stas Sergeev
2015-03-10 18:45 ` Peter Hurley
2015-03-11 12:44 ` Gregory CLEMENT
2015-03-11 12:57 ` Stas Sergeev
2015-03-11 13:14 ` Russell King - ARM Linux
2015-03-11 14:33 ` Stas Sergeev
2015-03-11 15:01 ` Stas Sergeev
2015-03-11 15:13 ` Gregory CLEMENT
2015-03-11 15:22 ` Stas Sergeev
2015-03-12 13:06 ` Russell King - ARM Linux
2015-03-11 16:52 ` Thomas Petazzoni
2015-03-11 17:26 ` Stas Sergeev
2015-03-11 17:46 ` Russell King - ARM Linux
2015-03-11 17:56 ` Stas Sergeev
2015-03-11 18:11 ` Thomas Petazzoni
2015-03-11 18:38 ` Stas Sergeev [this message]
2015-03-11 18:41 ` Russell King - ARM Linux
2015-03-11 18:08 ` Stas Sergeev
2015-03-11 18:33 ` Thomas Petazzoni
2015-03-12 12:44 ` Stas Sergeev
2015-03-12 12:47 ` Thomas Petazzoni
2015-03-12 13:03 ` Stas Sergeev
2015-03-12 13:12 ` Russell King - ARM Linux
2015-03-12 13:16 ` Stas Sergeev
2015-03-12 13:55 ` Thomas Petazzoni
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