ci2 starts bisection 2024-03-11 17:46:46.897662792 +0000 UTC m=+219297.901490415
bisecting fixing commit since 8b4118fabd6eb75fed19483b04dab3a036886489
building syzkaller on 578f753887693e1375d17cf79dc1c575f6032a5d
ensuring issue is reproducible on original commit 8b4118fabd6eb75fed19483b04dab3a036886489

testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1b4bd91aee7b928306709d6a865a8a5ad1d420bbedf8c088b56a0882f8558c15
all runs: crashed: INFO: task hung in unix_dgram_sendmsg
representative crash: INFO: task hung in unix_dgram_sendmsg, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 25c8aecf5679dc8d9b3517eab67b758f3165863d748e9a75565004836529c9a5
all runs: crashed: INFO: task hung in unix_dgram_sendmsg
representative crash: INFO: task hung in unix_dgram_sendmsg, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
kconfig minimization: base=3820 full=7455 leaves diff=1990
split chunks (needed=false): <1990>
split chunk #0 of len 1990 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 28ab2fc764acd86415b892c0145ea88ce5407ca788753f077d60c87ba5ba1e1c
all runs: crashed: INFO: task hung in unix_dgram_sendmsg
representative crash: INFO: task hung in unix_dgram_sendmsg, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed
testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 73e29232b48ff047ea6049cae1e1459117a90a744e348c56fa0d6c7f4d10a36d
all runs: crashed: INFO: task hung in unix_dgram_sendmsg
representative crash: INFO: task hung in unix_dgram_sendmsg, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: fc64cadcb92494c8cfc1c2260595a4b49edf3a68040a915af48e4283a040935b
all runs: crashed: INFO: task hung in unix_dgram_sendmsg
representative crash: INFO: task hung in unix_dgram_sendmsg, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2411d2d3f77e3bb43cd513408e9321e9d8e56dd4f45c60097bf3097c71f72eed
all runs: crashed: INFO: rcu detected stall in corrupted
representative crash: INFO: rcu detected stall in corrupted, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 8b4118fabd6eb75fed19483b04dab3a036886489 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5e79fae7b8231cc92b9a05a92104fd41664520890dbe5323ab890f393272e37b
all runs: crashed: INFO: rcu detected stall in corrupted
representative crash: INFO: rcu detected stall in corrupted, types: [HANG]
the chunk can be dropped
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
determining the merge base between 8b4118fabd6eb75fed19483b04dab3a036886489 and e8f897f4afef0031fe618a8e94127a0934896aba
830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: df143a88749fc4df279b0782a34941f37bbd26f77414d042947ce7562a334592
all runs: OK
false negative chance: 0.000
reproducer does not crash the merge base, so there's no known bad commit
revisions tested: 8, total time: 1h26m34.1338299s (build: 31m41.857695153s, test: 51m50.383795479s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1