bisecting cause commit starting from 81a72c79224f83af18e26dc0c599f917312e6c78
building syzkaller on 794a1ad73ab695b3d3ef099446fa60bc060dd74e
testing commit 81a72c79224f83af18e26dc0c599f917312e6c78 with gcc (GCC) 8.1.0
all runs: crashed: INFO: task syz-executor can't die for more than 143 seconds.
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: crashed: no output from test machine
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing release v5.0
testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: crashed: no output from test machine
run #2: crashed: no output from test machine
run #3: crashed: no output from test machine
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: crashed: no output from test machine
run #2: crashed: no output from test machine
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing release v4.18
testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0
all runs: OK
# git bisect start v4.19 v4.18
Bisecting: 7596 revisions left to test after this (roughly 13 steps)
[db06f826ec12bf0701ea7fc0a3c0aa00b84417c8] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
testing commit db06f826ec12bf0701ea7fc0a3c0aa00b84417c8 with gcc (GCC) 8.1.0
all runs: OK
# git bisect good db06f826ec12bf0701ea7fc0a3c0aa00b84417c8
Bisecting: 3768 revisions left to test after this (roughly 12 steps)
[cd9b44f90763c3367e8dd0601849ffb028e8ba52] Merge branch 'akpm' (patches from Andrew)
testing commit cd9b44f90763c3367e8dd0601849ffb028e8ba52 with gcc (GCC) 8.1.0
all runs: OK
# git bisect good cd9b44f90763c3367e8dd0601849ffb028e8ba52
Bisecting: 1886 revisions left to test after this (roughly 11 steps)
[4290d5b9ca018be10c7582524f7500df731bfab0] Merge tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
testing commit 4290d5b9ca018be10c7582524f7500df731bfab0 with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 4290d5b9ca018be10c7582524f7500df731bfab0
Bisecting: 836 revisions left to test after this (roughly 10 steps)
[2f34a64aeac4d87e8ed8275d9f1230e18a50079c] Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
testing commit 2f34a64aeac4d87e8ed8275d9f1230e18a50079c with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 2f34a64aeac4d87e8ed8275d9f1230e18a50079c
Bisecting: 519 revisions left to test after this (roughly 9 steps)
[2dd207c91ab74b1b26b6926905a6be57508a872a] Merge tag 'amlogic-dt64-3' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt
testing commit 2dd207c91ab74b1b26b6926905a6be57508a872a with gcc (GCC) 8.1.0
all runs: OK
# git bisect good 2dd207c91ab74b1b26b6926905a6be57508a872a
Bisecting: 264 revisions left to test after this (roughly 8 steps)
[5563ae9b39c5ba492be1b18f2d72fd43ba549915] Merge tag 'riscv-for-linus-4.19-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
testing commit 5563ae9b39c5ba492be1b18f2d72fd43ba549915 with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: crashed: no output from test machine
run #2: crashed: no output from test machine
run #3: crashed: no output from test machine
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 5563ae9b39c5ba492be1b18f2d72fd43ba549915
Bisecting: 131 revisions left to test after this (roughly 7 steps)
[5bed49adfe899667887db0739830190309c9011b] Merge tag 'for-4.19/post-20180822' of git://git.kernel.dk/linux-block
testing commit 5bed49adfe899667887db0739830190309c9011b with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 5bed49adfe899667887db0739830190309c9011b
Bisecting: 61 revisions left to test after this (roughly 6 steps)
[76cf05d79c9ef02d5afa77abaf9b109afde794c4] f2fs: quota: fix incorrect comments
testing commit 76cf05d79c9ef02d5afa77abaf9b109afde794c4 with gcc (GCC) 8.1.0
all runs: OK
# git bisect good 76cf05d79c9ef02d5afa77abaf9b109afde794c4
Bisecting: 30 revisions left to test after this (roughly 5 steps)
[1e7da865b8c0428b9bcb18ba05ba0f6f47bcfdb4] block/DAC960.c: make some arrays static const, shrinks object size
testing commit 1e7da865b8c0428b9bcb18ba05ba0f6f47bcfdb4 with gcc (GCC) 8.1.0
all runs: OK
# git bisect good 1e7da865b8c0428b9bcb18ba05ba0f6f47bcfdb4
Bisecting: 15 revisions left to test after this (roughly 4 steps)
[a33c150237a20d97a174243bc658c86502f9d370] f2fs: fix avoid race between truncate and background GC
testing commit a33c150237a20d97a174243bc658c86502f9d370 with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad a33c150237a20d97a174243bc658c86502f9d370
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[e494c2f995d6181d6e29c4927d68e0f295ecf75b] f2fs: fix to do sanity check with cp_pack_start_sum
testing commit e494c2f995d6181d6e29c4927d68e0f295ecf75b with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad e494c2f995d6181d6e29c4927d68e0f295ecf75b
Bisecting: 3 revisions left to test after this (roughly 2 steps)
[18767e62639622554c3642a6e3f3b0ca19bc1d9d] f2fs: don't keep meta pages used for block migration
testing commit 18767e62639622554c3642a6e3f3b0ca19bc1d9d with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 18767e62639622554c3642a6e3f3b0ca19bc1d9d
Bisecting: 0 revisions left to test after this (roughly 1 step)
[4ddc1b28aac57a90c6426d55e0dea3c1b5eb4782] f2fs: fix to restrict mount condition when without CONFIG_QUOTA
testing commit 4ddc1b28aac57a90c6426d55e0dea3c1b5eb4782 with gcc (GCC) 8.1.0
run #0: crashed: no output from test machine
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 4ddc1b28aac57a90c6426d55e0dea3c1b5eb4782
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[00960c2cd8f169e38700956d3e7ff07bfa4d7b3b] f2fs: quota: do not mount as RDWR without QUOTA if quota feature enabled
testing commit 00960c2cd8f169e38700956d3e7ff07bfa4d7b3b with gcc (GCC) 8.1.0
all runs: OK
# git bisect good 00960c2cd8f169e38700956d3e7ff07bfa4d7b3b
4ddc1b28aac57a90c6426d55e0dea3c1b5eb4782 is the first bad commit
commit 4ddc1b28aac57a90c6426d55e0dea3c1b5eb4782
Author: Chao Yu <yuchao0@huawei.com>
Date:   Thu Jul 26 07:19:48 2018 +0800

    f2fs: fix to restrict mount condition when without CONFIG_QUOTA
    
    Like quota_ino feature, we need to reject mounting RDWR with image
    which enables project_quota feature when there is no CONFIG_QUOTA
    be set in kernel.
    
    Signed-off-by: Chao Yu <yuchao0@huawei.com>
    Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

:040000 040000 4c2d27b523651b036265faf6f874752b1fdec01e f04b2d6bf223a2a28df93fee80eb05c2ffd3ee90 M	fs
revisions tested: 20, total time: 5h59m55.175672491s (build: 1h48m1.681670737s, test: 4h4m13.315675995s)
first bad commit: 4ddc1b28aac57a90c6426d55e0dea3c1b5eb4782 f2fs: fix to restrict mount condition when without CONFIG_QUOTA
cc: ["jaegeuk@kernel.org" "linux-f2fs-devel@lists.sourceforge.net" "linux-kernel@vger.kernel.org" "yuchao0@huawei.com"]
crash: no output from test machine