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From: bugzilla-daemon@bugzilla.kernel.org
To: linuxppc-dev@lists.ozlabs.org
Subject: [Bug 213069] kernel BUG at arch/powerpc/include/asm/book3s/64/hash-4k.h:147! Oops: Exception in kernel mode, sig: 5 [#1]
Date: Mon, 17 May 2021 06:21:09 +0000	[thread overview]
Message-ID: <bug-213069-206035-Dy9D6J7JJz@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-213069-206035@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=213069

Christophe Leroy (christophe.leroy@csgroup.eu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |christophe.leroy@csgroup.eu

--- Comment #2 from Christophe Leroy (christophe.leroy@csgroup.eu) ---
The bug is not in powerpc but in function pmd_basic_tests() in
mm/debug_vm_pgtable.c
(https://elixir.bootlin.com/linux/v5.13-rc1/source/mm/debug_vm_pgtable.c#L146)

pfn_pmd() should not be called before the has_transparent_hugepage()
verification.

Same problem in pmd_advanced_tests()

And there is the exact same issue with PUD tests with pfn_pud() function.

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  parent reply	other threads:[~2021-05-17  6:21 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-14 23:44 [Bug 213069] New: " bugzilla-daemon
2021-05-15 10:20 ` [Bug 213069] " bugzilla-daemon
     [not found] ` <4deb5cd5-c713-b020-9143-c74a031e3fd5@csgroup.eu>
     [not found]   ` <a8841b4e-3bff-f600-eac7-501f78ced54b@arm.com>
2021-05-17  5:47     ` Fwd: [Bug 213069] New: " Christophe Leroy
2021-05-17  5:55       ` Aneesh Kumar K.V
2021-05-17  7:25         ` Anshuman Khandual
2021-05-17  7:44           ` Aneesh Kumar K.V
2021-05-17 10:53             ` Anshuman Khandual
2021-05-17 11:14               ` Aneesh Kumar K.V
2021-05-17 12:49         ` Anshuman Khandual
2021-05-17 12:59           ` Christophe Leroy
2021-05-17 13:12             ` Anshuman Khandual
2021-05-17 15:26               ` Christophe Leroy
2021-05-17 13:52           ` Aneesh Kumar K.V
2021-05-17 14:12             ` Anshuman Khandual
2021-05-17  6:21 ` bugzilla-daemon [this message]
2021-05-17 10:36 ` [Bug 213069] " bugzilla-daemon
2021-05-17 12:57 ` bugzilla-daemon
2021-05-19  1:56 ` bugzilla-daemon
2021-06-04  0:36 ` bugzilla-daemon
2021-06-18 23:18 ` bugzilla-daemon

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