ci2 starts bisection 2026-08-08 07:32:22.744026458 +0000 UTC m=+12941.996631542
bisecting fixing commit since f97f1002271b0834b87afa7097b5ad6e7d14abd9
building syzkaller on fdeaa69b728b8c7a429af7101cdd788f1dc9b916
ensuring issue is reproducible on original commit f97f1002271b0834b87afa7097b5ad6e7d14abd9

testing commit f97f1002271b0834b87afa7097b5ad6e7d14abd9 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d53b20276b8ff64ed2244e9dfa5687bfa5f1da14d0c39c0d625705c93870b840
run #0: crashed: INFO: rcu detected stall in isotp_release
run #1: crashed: INFO: rcu detected stall in isotp_release
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: INFO: rcu detected stall in __sock_create
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: crashed: INFO: rcu detected stall in __sock_create
run #19: crashed: INFO: rcu detected stall in __sock_create
representative crash: INFO: rcu detected stall in isotp_release, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
testing commit f97f1002271b0834b87afa7097b5ad6e7d14abd9 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 68299fc5dd49433214a934f4eeba1af2ecfef6288ee7b61ecb96a6b8517b2044
all runs: OK
false negative chance: 0.003
kconfig minimization: base=3829 full=7618 leaves diff=2130
split chunks (needed=false): <2130>
split chunk #0 of len 2130 into 5 parts
testing without sub-chunk 1/5
testing commit f97f1002271b0834b87afa7097b5ad6e7d14abd9 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: cdda0d40051ff477ef545a16876933ae4e51987a6075db9e3d14f28ce2add866
all runs: OK
false negative chance: 0.003
testing without sub-chunk 2/5
testing commit f97f1002271b0834b87afa7097b5ad6e7d14abd9 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: ef9ad67f27c7877e4fc80cc0846e1b77792ade65c01713b0d0698e05cfcc9e17
run #0: crashed: INFO: rcu detected stall in futex
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: crashed: INFO: rcu detected stall in corrupted
run #18: OK
run #19: OK
representative crash: INFO: rcu detected stall in futex, types: [HANG]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
testing without sub-chunk 3/5
testing commit f97f1002271b0834b87afa7097b5ad6e7d14abd9 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 2a96de895c4f41469b48f5267f56c3c237b3395b41c5a719eabc531fa3e88ef8
run #0: infra problem: failed to create instance: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '6588578E58494.303E6C.CE065593'), backendError
run #1: OK
run #2: crashed: INFO: rcu detected stall in isotp_release
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: INFO: rcu detected stall in isotp_release, types: [HANG]
reproducer is flaky (0.25 repro chance estimate)
revisions tested: 5, total time: 1h44m58.494190226s (build: 32m28.292291475s, test: 58m16.35411303s)
error: config minimization failed: unable to determine the verdict because of infra errors