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From: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm@kvack.org
Subject: Panic on kmemleak scan
Date: Mon, 11 Oct 2021 14:23:31 +0300	[thread overview]
Message-ID: <8ade5174-b143-d621-8c8e-dc6a1898c6fb@linaro.org> (raw)

Hello Mike,

commit a7259df767 ("memblock: make memblock_find_in_range method private") [1]
invokes a kernel panic while running kmemleak on OF platforms with nomaped
regions, basically it's similar to an issue reported and fixed earlier by [2]:

   Unable to handle kernel paging request at virtual address ffff000021e00000
   [...]
     scan_block+0x64/0x170
     scan_gray_list+0xe8/0x17c
     kmemleak_scan+0x270/0x514
     kmemleak_write+0x34c/0x4ac

I believe it would be a trivial problem to correct for you, thank you in
advance!

[1] https://lore.kernel.org/all/20210816122622.30279-1-rppt@kernel.org/T/#u
[2] https://lore.kernel.org/lkml/20190119132832.GA29881@MBP.local/t/#m032124f36c07

--
Best wishes,
Vladimir

             reply	other threads:[~2021-10-11 11:24 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-11 11:23 Vladimir Zapolskiy [this message]
2021-10-12  6:08 ` Panic on kmemleak scan Mike Rapoport
2021-10-12  8:21   ` Vladimir Zapolskiy

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