ci2 starts bisection 2023-10-06 13:31:09.330788961 +0000 UTC m=+108.049820816
bisecting fixing commit since 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95
building syzkaller on f08b59ac0d8759f409d594ddca4f08c920e23237
ensuring issue is reproducible on original commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95

testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0d0361806a289685f359d0950642d59f765bd0369a4e583e48f20a6d28e5ae78
all runs: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
check whether we can drop unnecessary instrumentation
disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 174bb3599b663050b4fd9843a7cdd3d19c5d7ef098ca16c8409cd2a92cf3e065
run #0: crashed: possible deadlock in ext4_bmap
run #1: crashed: possible deadlock in ext4_bmap
run #2: crashed: possible deadlock in ext4_bmap
run #3: crashed: possible deadlock in ext4_bmap
run #4: crashed: possible deadlock in ext4_bmap
run #5: crashed: possible deadlock in ext4_bmap
run #6: crashed: possible deadlock in ext4_bmap
run #7: crashed: possible deadlock in jbd2_journal_lock_updates
run #8: crashed: possible deadlock in ext4_bmap
run #9: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
the bug reproduces without the instrumentation
disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
kconfig minimization: base=3703 full=7272 leaves diff=1980
split chunks (needed=false): <1980>
split chunk #0 of len 1980 into 5 parts
testing without sub-chunk 1/5
disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 66257ec387e9a1fc8875ac8df9a1372497c809cc5224b9f2d9c432e533a66742
all runs: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a23e342be2553e5fe2cc48bda8dcb9d68f4a2b939a923c7db8ff28edeea351d0
all runs: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bcb6160ba5ce4f102e09d505551ac0bdf176b03835bbfaab040417bd56e22f4a
all runs: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 53afa9f5a9bce839424cace479cd93c6ead0a6df40e4b10fe9fe8c4224037a3c
all runs: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed
testing commit 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b01912e1ad8eb498457b979e525a93068a515a85d392e634e3c69f602cbecd4b
all runs: crashed: possible deadlock in ext4_bmap
representative crash: possible deadlock in ext4_bmap, types: [LOCKDEP]
the chunk can be dropped
disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed
determining the merge base between 8a7f2a5c5aa1648edb4f2029c6ec33870afb7a95 and b78b18fb8ee19f7a05f20c3abc865b3bfe182884
8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5c0c0015f2026180fda97ca8940eccc3527f81b43257d0f6a9e6a81417fc78de
all runs: OK
false negative chance: 0.000
reproducer does not crash the merge base, so there's no known bad commit
revisions tested: 8, total time: 1h54m48.609096541s (build: 44m8.384083386s, test: 28m16.410619372s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15