ci starts bisection 2026-07-17 10:27:06.337894358 +0000 UTC m=+14464.091122472
bisecting fixing commit since aec2f682d47c54ef434b2d440992626d80b1ebdc
building syzkaller on df15c5f3d9deb74ba8dc519449837e23f3040ac6
ensuring issue is reproducible on original commit aec2f682d47c54ef434b2d440992626d80b1ebdc

testing commit aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 6ddc4735cd58b87a38d7fea88edcd87ba73f4d9ae233b0cdf28d0112c8d1685d
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 aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: a397eb6b2b8583bc36d4685c14e5e4512935117b58c3ee5150c2ac139abddc69
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 [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
kconfig minimization: base=4140 full=8619 leaves diff=2158
split chunks (needed=false): <2158>
split chunk #0 of len 2158 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 aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: f17f9f8f526545581acdbf93c85c780448e1f5bf8bbcd4e4557435db62ac21c1
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 aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 597e1030c2e0d4bc4b64851e9443f26d9f09f5e69d2701b22a561959640e8010
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 aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 63938a8d435e5266e688c015e8e231e6d06d386f5cd7c66a854aa835312a8a7b
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 6a97915f39fbe13f95f7ba8a14a3fa201fcb766d229a5c6dfba97efa5c894cb5
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 aec2f682d47c54ef434b2d440992626d80b1ebdc gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 43096c6289b479332bf48e94b827b03e6a6959a6c0134f118b8073eba12dfc4a
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 fce2dfa773ced15f27dd27cd0b482a7473cdcf2a
testing commit fce2dfa773ced15f27dd27cd0b482a7473cdcf2a gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 357a3d97eecd39afe40191e0bc40de9948438f616507bd7d72b44f1db3c10e39
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: 2h45m47.892268697s (build: 1h14m46.619190014s, test: 47m28.90221291s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'v7.2-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
crash: lost connection to test machine