ci starts bisection 2026-06-13 05:07:38.946480058 +0000 UTC m=+57949.178238422
bisecting fixing commit since b4f0dd314b39ea154f62f3bd3115ed0470f9f71e
building syzkaller on 86914af9098a80da53c3c5d46be980c572ee29f8
ensuring issue is reproducible on original commit b4f0dd314b39ea154f62f3bd3115ed0470f9f71e

testing commit b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 880a4e0aea39cfe81bf55665dde0a931655535ceefe3fe66a406f863d8b89a5d
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 b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: c0bb2fb69fef0d4d65eba8932d6691f977b4b66990bd73e49341f21d2312ec55
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=8610 leaves diff=2174
split chunks (needed=false): <2174>
split chunk #0 of len 2174 into 5 parts
testing without sub-chunk 1/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 1846fc9ae2e6419c77aebf047d4afcd76730ed9613eb856dcbc4bdd021ba839c
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 8e923c928f157306f6bd748908ee974c5ae402070487e2e4b1ce81807792101a
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 b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: efded470f55c34a5e7c7013bab6d1f0efea4f8119e38eddca96e60d4e0d849fe
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 [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: e54bbaa3967b93b9d0e236041de48f513e523ef38a935d199c9844332bb0ac37
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit b4f0dd314b39ea154f62f3bd3115ed0470f9f71e gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: ad09cde9a20fe5a5423af42822edca7ec35bb0007d6fdc728268a5d1800bf85a
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing current HEAD 062871f1371b2e02a272ff5279c6479aff0a37ef
testing commit 062871f1371b2e02a272ff5279c6479aff0a37ef gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: c6df0adf5c3e10c57476dc0ac6bb9077684a19b9624f42f66290a004f811dad0
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: 4h21m48.861443839s (build: 3h2m27.393594192s, test: 29m17.053171076s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'pinctrl-v7.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
crash: lost connection to test machine