ci2 starts bisection 2026-07-02 22:51:31.149541914 +0000 UTC m=+30193.259290775
bisecting fixing commit since d458a240344c4369bf6f3da203f2779515177738
building syzkaller on 81fb92f382d05aa9fb9878696840b9711b38ba20
ensuring issue is reproducible on original commit d458a240344c4369bf6f3da203f2779515177738

testing commit d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 32aa6747c5e304c1ef62de746f8e6dca1b990fc01cff1e3bcdefe6eb6cf57783
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 [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: b851e8df710afe7832ac87a5c8acc99e8f0eac4b4c13a387a01cd7d708d60d8e
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 [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
kconfig minimization: base=4140 full=8382 leaves diff=2107
split chunks (needed=false): <2107>
split chunk #0 of len 2107 into 5 parts
testing without sub-chunk 1/5
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 08434c4214f897ee093237392eb0f78c9bd4c3f6b4fa76e7bb07fee94d68cfa6
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 [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: cd45068bf484dda7af6c53057e6b5956cbbe532a8a516bc3bf5d989f3505b835
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: a722b5f53fc8448a8ffdfa268ae19a7c47828b9df48f31cc238e30a6549e8f9d
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 d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d8c3cc29428d8f6896f935f76dcfaed54964ab6a2457722937bcf594c7e97d2c
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 [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
testing commit d458a240344c4369bf6f3da203f2779515177738 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 0eedb1969f966bdbc2d9096d5dfc85365a96bc784d9b7445c34a6c674cbc8803
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 87320be9f0d24fce67631b7eef919f0b79c3e45c
testing commit 87320be9f0d24fce67631b7eef919f0b79c3e45c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: a7f953d0be10eff169f392f4202c381f50a24b5fd0ca5d21e38e8ffc0e11e3ff
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: 1h41m59.315295503s (build: 39m7.804457023s, test: 35m53.528746228s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'net-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
crash: lost connection to test machine