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: Sat, 18 Jan 2020 20:06:34 +0000 [thread overview]
Message-ID: <bug-205099-206035-tTsJr5Mes8@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-205099-206035@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=205099
--- Comment #16 from Erhard F. (erhard_f@mailbox.org) ---
(In reply to Christophe Leroy from comment #15)
> Would be interesting to try and see if the VMAP_STACK series detects the
> stack overflow.
> Series at
> https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=149973
I just tried that, but in this case the G4 won't boot at all. The kernel loads
but booting gets stuck at a white display with only 2 lines visible where it
tells me it will open the display of the G4s Radeons offb display.
I applied your CONFIG_KASAN_VMALLOC on top of 5.5-rc6 and applied your
VMAP_STACK series afterwards.
# grep -i kasan .config
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_KASAN=y
CONFIG_KASAN_GENERIC=y
# CONFIG_KASAN_OUTLINE is not set
CONFIG_KASAN_INLINE=y
CONFIG_KASAN_STACK=1
CONFIG_KASAN_VMALLOC=y
# CONFIG_TEST_KASAN is not set
CONFIG_KASAN_SHADOW_OFFSET=0xe0000000
# grep -i vmap .config
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
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next prev parent reply other threads:[~2020-01-18 20:08 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-06 17:49 [Bug 205099] New: KASAN hit at raid6_pq: BUG: Unable to handle kernel data access at 0x00f0fd0d bugzilla-daemon
2019-10-06 17:49 ` [Bug 205099] " bugzilla-daemon
2019-10-09 21:19 ` bugzilla-daemon
2019-12-10 23:51 ` bugzilla-daemon
2019-12-10 23:52 ` bugzilla-daemon
2019-12-10 23:54 ` bugzilla-daemon
2019-12-11 19:22 ` bugzilla-daemon
2019-12-14 13:49 ` bugzilla-daemon
2019-12-15 16:01 ` bugzilla-daemon
2019-12-21 17:42 ` bugzilla-daemon
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2020-01-17 21:16 ` bugzilla-daemon
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2020-01-17 21:25 ` bugzilla-daemon
2020-01-18 8:47 ` bugzilla-daemon
2020-01-18 20:06 ` bugzilla-daemon [this message]
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