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: Sun, 15 Dec 2019 16:01:27 +0000 [thread overview]
Message-ID: <bug-205099-206035-kadYrjzlfY@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 #8 from Erhard F. (erhard_f@mailbox.org) ---
Found out this is probably a cause for bug #205283. For doing some btrfs tests
with 5.5-rc1 kernel I needed to disable KASAN in lib/raid6/Makefile
(KASAN_SANITIZE := n) as btrfs pulls in raid6_pq.
btrfs gets modprobed seemingly ok the 1st time, but removing and reloading it
provokes bug #205283.
# modprobe -v btrfs
# modprobe -r -v btrfs
rmmod btrfs
rmmod zlib_inflate
rmmod libcrc32c
rmmod raid6_pq
rmmod zlib_deflate
rmmod lzo_decompress
rmmod lzo_compress
rmmod zstd_compress
rmmod zstd_decompress
rmmod xor
# modprobe -v btrfs
insmod
/lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/zlib_inflate/zlib_inflate.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/libcrc32c.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/raid6/raid6_pq.ko
insmod
/lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/zlib_deflate/zlib_deflate.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/lzo/lzo_decompress.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/lzo/lzo_compress.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/zstd/zstd_compress.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/lib/zstd/zstd_decompress.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/crypto/xor.ko
insmod /lib/modules/5.5.0-rc1-PowerMacG4+/kernel/fs/btrfs/btrfs.ko
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next prev parent reply other threads:[~2019-12-15 16:03 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 [this message]
2019-12-21 17:42 ` bugzilla-daemon
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