linux-kernel - Re: [PATCH] UML: add support for KASAN under x86

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Message-ID: <e3bfa0844566db1a837534218fe128f66cfe2e79.camel@sipsolutions.net>
Date:   Wed, 11 Mar 2020 12:40:03 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Patricia Alfonso <trishalfonso@...gle.com>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        anton.ivanov@...bridgegreys.com,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        David Gow <davidgow@...gle.com>
Cc:     linux-um@...ts.infradead.org, LKML <linux-kernel@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: [PATCH] UML: add support for KASAN under x86_64


> Pid: 504, comm: modprobe Tainted: G           O      5.5.0-rc6-00009-g09462ab4014b-dirty
> RIP:  
> RSP: 000000006d68fa90  EFLAGS: 00010202
> RAX: 000000800e0210cd RBX: 000000007010866f RCX: 00000000601a9777
> RDX: 000000800e0210ce RSI: 0000000000000004 RDI: 000000007010866c
> RBP: 000000006d68faa0 R08: 000000800e0210cd R09: 0000000060041432
> R10: 000000800e0210ce R11: 0000000000000001 R12: 000000800e0210cd
> R13: 0000000000000000 R14: 0000000000000001 R15: 00000000601c2e82
> Kernel panic - not syncing: Kernel mode fault at addr 0x800e0210cd, ip 0x601c332b

Same if I move it to the original place from your v2 patch
(0x100000000000):

Kernel panic - not syncing: Kernel mode fault at addr 0x10000e0c7032, ip 0x601c332b

Not sure what to do now?

johannes