ci starts bisection 2026-06-11 10:37:23.738158061 +0000 UTC m=+38418.383135661
bisecting fixing commit since bbeb83d3182abe0d245318e274e8531e5dd7a948
building syzkaller on 4367a094e88855b66d18174fe0ea8a9458097998
ensuring issue is reproducible on original commit bbeb83d3182abe0d245318e274e8531e5dd7a948

testing commit bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 498861a5267f5f438346e0cae1f073cf49afad427eb486888c6094cf84bf9f23
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 bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: a8a4ba04f08ae0b24d24d5a08c7e592e2132d2c907698d0f58a27b50813a1abf
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=4137 full=8410 leaves diff=2134
split chunks (needed=false): <2134>
split chunk #0 of len 2134 into 5 parts
testing without sub-chunk 1/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 990b929abb3228a977a88f5bcbeee6b97adf62890c9e588b27dc9ecd8e0460dc
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 bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: b3705ae698a678e5a45110d55714df73ab12c02eaaf1f409fce77e1b35564766
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 [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: fc4f8e1f4d6f084db782f6224446662df9567ee66ff550aeac6a52d1a79f12b6
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 [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 0a59a4d08f7bca36a72e54a2ebc8b9a955cd11a903f776db99cedce2e76353de
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 bbeb83d3182abe0d245318e274e8531e5dd7a948 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 6cc76815ec85e1e710d269d241e44e9f6d82eb082a2a006f9992b7a3c53a091f
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 9716c086c8e8b141d35aa61f2e96a2e83de212a7
testing commit 9716c086c8e8b141d35aa61f2e96a2e83de212a7 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 4c4c25009f24396536b6912739654512fc88b33e43fee3f64bb0cb118c349a60
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: 1h58m40.256726478s (build: 56m18.971054387s, test: 30m14.57318832s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'pm-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
crash: lost connection to test machine