ci2 starts bisection 2026-07-20 16:17:49.902280307 +0000 UTC m=+20818.224998491
bisecting fixing commit since f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe
building syzkaller on c3901742785ff25afdc6f470af7b25b69d7c4f2f
ensuring issue is reproducible on original commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe

testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: c33efc39c92cd119fef8531dad22cd35e97b784db9321141efee4dab214d234e
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 3a51dffca8460f807d64d274fef2afb1bac097df1a5e99d342040b6333f87621
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
kconfig minimization: base=3829 full=7499 leaves diff=2070
split chunks (needed=false): <2070>
split chunk #0 of len 2070 into 5 parts
testing without sub-chunk 1/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 1f24f679dae175c7629b3feeccb3a90c0e0d9780b61069771db7e3847cdccf7d
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 47c48f4df8c131f227e6e55b94cbba398c97270ea335f488ea70b99352b17d4f
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 95595afd29c11224bbb637170888cc1a04628b5fad76189780a3a8885166c190
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: ad5419fe7c76754df91bb2a8840bab3d6d3a3e1e52da82bf5cf8a23069ef0858
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed
testing commit f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 8b03f81bd15286a99ab5bade047e36393a9cab4b086c06a7bd326b173779259c
all runs: crashed: INFO: task hung in iterate_supers
representative crash: INFO: task hung in iterate_supers, types: [HANG]
the chunk can be dropped
disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed
determining the merge base between f6e38ae624cf7eb96fb444a8ca2d07caa8d9c8fe and 1590cf0329716306e948a8fc29f1d3ee87d3989f
830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
failed building 830b3c68c1fb1e9176028d02ef86f3cf76aa2476: ld.lld: error: version script assignment of 'LINUX_2.6' to symbol '__vdso_sgx_enter_enclave' failed: symbol not defined
llvm-objdump: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory
llvm-objcopy: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory
reproducer does not crash the merge base, so there's no known bad commit
revisions tested: 7, total time: 2h39m47.177059139s (build: 1h11m40.73412918s, test: 1h8m48.053041084s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1