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From: bugzilla-daemon@bugzilla.kernel.org
To: linuxppc-dev@lists.ozlabs.org
Subject: [Bug 205099] KASAN hit at raid6_pq: BUG: Unable to handle kernel
 data access at 0x00f0fd0d
Date: Mon, 29 Nov 2021 00:32:10 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=3D205099

Erhard F. (erhard_f@mailbox.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #299711|0                           |1
        is obsolete|                            |

--- Comment #41 from Erhard F. (erhard_f@mailbox.org) ---
Created attachment 299759
  --> https://bugzilla.kernel.org/attachment.cgi?id=3D299759&action=3Dedit
dmesg (5.15.5, OUTLINE KASAN, LOWMEM_SIZE=3D0x28000000, PowerMac G4 DP)

Ok, finally getting somewhere.. With CONFIG_LOWMEM_SIZE=3D0x28000000 I don'=
t get
this "vmap allocation for size 33562624 failed" error and also OUTLINE KASAN
does not show the originally reported "BUG: Unable to handle kernel data ac=
cess
at 0x00f0fd0d" for raid6_pq!

For INLINE KASAN I still get "vmap allocation for size 33562624 failed", ev=
en
with CONFIG_LOWMEM_SIZE=3D0x28000000 or CONFIG_LOWMEM_SIZE=3D0x20000000.

--=20
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