ci starts bisection 2026-06-22 19:30:04.733815633 +0000 UTC m=+15989.103673643
bisecting fixing commit since 45255ea1ca096b11b1303c9b54502a28f3a31dd1
building syzkaller on c69befb30ac10e158cc9d1557b508ee3f0eca1de
ensuring issue is reproducible on original commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1

testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: e178e75847c5ea7eb8c45c95c7104606b5c73b5ac45e4a7b4101e9dfa42f18b2
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
check whether we can drop unnecessary instrumentation
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: bbbe33866fe7932d56567d19c940cbb3dea601ee282f50b25fee594f868907cb
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the bug reproduces without the instrumentation
disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
kconfig minimization: base=4144 full=8588 leaves diff=2147
split chunks (needed=false): <2147>
split chunk #0 of len 2147 into 5 parts
testing without sub-chunk 1/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: fbd6078d29eb40922fb6aa7cad395c060ba2680eb9e11d66d335b745b22862c8
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 27f38a127d646f976e9d9b6834903a792136edc7ff16f8107a710e5ce113d24f
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 45bead9d67e0afdffcad08d3f7cdbd5990d10f2933f1b547b0797d61d181c787
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: eecc5462c86a0a2dee0eac8d2d4bcba96753b6965c5ce8040c194810ec21a899
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 45255ea1ca096b11b1303c9b54502a28f3a31dd1 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: f6c5da02f47da7871bee094e6a08b404ef62216015d4674c2aaad05ce27d4b2f
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
testing current HEAD 1dc18801be29bc54709aa355b8acd80e183b03cd
testing commit 1dc18801be29bc54709aa355b8acd80e183b03cd gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 61b22851e6a2fffccbf803a7413a29a6f968f48ca0ec7166d43e0f1607c4f6ad
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 3h24m47.298085743s (build: 1h56m19.936803491s, test: 41m0.964933176s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'i2c-7.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux
crash: lost connection to test machine