ci starts bisection 2025-07-14 01:16:49.557126061 +0000 UTC m=+259904.048699653 bisecting cause commit starting from a62b7a37e6fcf4a675b1548e7c168b96ec836442 building syzkaller on 3cda49cfaa8556b73277ccd7e75952f0f2de2d74 ensuring issue is reproducible on original commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 1e4ca4d9254b940108855c425609d7673eedfdbb23b1c7810c040a7fa927c595 run #0: crashed: WARNING: bad unlock balance in query_matching_vma run #1: crashed: possible deadlock in lock_next_vma run #2: crashed: WARNING: bad unlock balance in query_matching_vma run #3: crashed: WARNING: lock held when returning to user space in lock_next_vma run #4: crashed: possible deadlock in lock_next_vma run #5: crashed: WARNING: lock held when returning to user space in lock_next_vma run #6: crashed: possible deadlock in lock_next_vma run #7: crashed: general protection fault in mas_next_slot run #8: crashed: WARNING: lock held when returning to user space in lock_next_vma run #9: crashed: WARNING: lock held when returning to user space in lock_next_vma run #10: crashed: WARNING: bad unlock balance in query_matching_vma run #11: crashed: WARNING: lock held when returning to user space in lock_next_vma run #12: crashed: general protection fault in mtree_range_walk run #13: crashed: general protection fault in mas_next_slot run #14: crashed: WARNING: lock held when returning to user space in lock_next_vma run #15: crashed: general protection fault in mas_start run #16: crashed: general protection fault in mas_start run #17: crashed: WARNING: bad unlock balance in query_matching_vma run #18: crashed: WARNING: bad unlock balance in query_matching_vma run #19: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: WARNING: bad unlock balance in query_matching_vma, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 584f5e68dc45e3857c9d25b2e4887ba7390bfc840c2984b8ecd1f78a6bc4853d run #0: crashed: general protection fault in lock_next_vma run #1: crashed: WARNING: lock held when returning to user space in get_next_vma run #2: crashed: WARNING: lock held when returning to user space in get_next_vma run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: WARNING: lock held when returning to user space in get_next_vma run #6: crashed: WARNING: bad unlock balance in query_matching_vma run #7: crashed: WARNING: lock held when returning to user space in get_next_vma run #8: crashed: WARNING: lock held when returning to user space in get_next_vma run #9: crashed: WARNING: lock held when returning to user space in get_next_vma representative crash: WARNING: lock held when returning to user space in get_next_vma, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed kconfig minimization: base=4095 full=8505 leaves diff=2188 split chunks (needed=false): <2188> split chunk #0 of len 2188 into 5 parts testing without sub-chunk 1/5 disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 5f983013a627ef8da5ae46ce0022f25fe33985ebd5d2b1740a9cf60c3c819f2f run #0: crashed: possible deadlock in get_next_vma run #1: crashed: WARNING: bad unlock balance in query_matching_vma run #2: crashed: WARNING: lock held when returning to user space in get_next_vma run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: WARNING: bad unlock balance in query_matching_vma run #5: crashed: WARNING: lock held when returning to user space in get_next_vma run #6: crashed: possible deadlock in get_next_vma run #7: crashed: WARNING: lock held when returning to user space in get_next_vma run #8: crashed: WARNING: lock held when returning to user space in get_next_vma run #9: crashed: possible deadlock in get_next_vma representative crash: possible deadlock in get_next_vma, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 78ed83f99813f88535a53e67e9016f7d8c53bffb7ced6e779fb057a9bb48fac8 run #0: crashed: possible deadlock in get_next_vma run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in mtree_range_walk run #2: crashed: WARNING: lock held when returning to user space in get_next_vma run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: WARNING: bad unlock balance in procfs_procmap_ioctl run #5: crashed: WARNING: bad unlock balance in query_matching_vma run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in mas_next_slot run #7: crashed: possible deadlock in get_next_vma run #8: crashed: possible deadlock in get_next_vma run #9: crashed: WARNING: bad unlock balance in procfs_procmap_ioctl representative crash: possible deadlock in get_next_vma, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7e60073f68c595c2a5300ee9985137258d7b1271c212c4e04be53038f982d669 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in mas_next_slot run #1: crashed: WARNING: bad unlock balance in query_matching_vma run #2: crashed: WARNING: bad unlock balance in query_matching_vma run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #6: crashed: WARNING: lock held when returning to user space in get_next_vma run #7: crashed: WARNING: bad unlock balance in query_matching_vma run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #9: crashed: WARNING: lock held when returning to user space in get_next_vma representative crash: WARNING: bad unlock balance in query_matching_vma, types: [LOCKDEP NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [memleak ubsan bug_or_warning kasan atomic_sleep hang], they are not needed testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: a4a0ab4891f7f313f1a49c85c0dc97205e9e7fac911a4aad55939b6ed95b6e0e run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #1: crashed: WARNING: bad unlock balance in query_matching_vma run #2: crashed: possible deadlock in get_next_vma run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #6: crashed: WARNING: bad unlock balance in query_matching_vma run #7: crashed: WARNING: bad unlock balance in query_matching_vma run #8: crashed: WARNING: lock held when returning to user space in get_next_vma run #9: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: WARNING: bad unlock balance in query_matching_vma, types: [LOCKDEP NULL-POINTER-DEREFERENCE] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit a62b7a37e6fcf4a675b1548e7c168b96ec836442 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 8b7b27fd836499fae47c35977c9b92482b18b73a5e155334658d58f32de243e5 run #0: crashed: possible deadlock in get_next_vma run #1: crashed: WARNING: lock held when returning to user space in get_next_vma run #2: crashed: WARNING: lock held when returning to user space in get_next_vma run #3: crashed: WARNING: lock held when returning to user space in get_next_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: possible deadlock in get_next_vma run #6: crashed: WARNING: bad unlock balance in query_matching_vma run #7: crashed: WARNING: bad unlock balance in query_matching_vma run #8: crashed: WARNING: lock held when returning to user space in get_next_vma run #9: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: possible deadlock in get_next_vma, types: [LOCKDEP] the chunk can be dropped disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed picked [v6.15 v6.14 v6.13 v6.11 v6.9 v6.7 v6.5 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 38 release tags testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7ca71be411cc62be7e5fb07f32334920985a3c7071bd6064f9db6062351f6dee all runs: OK false negative chance: 0.000 # git bisect start a62b7a37e6fcf4a675b1548e7c168b96ec836442 0ff41df1cb268fc69e703a08a57ee14ae967d0ca Bisecting: 12116 revisions left to test after this (roughly 14 steps) [64980441d26995ea5599958740dbf6d791e81e27] Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf testing commit 64980441d26995ea5599958740dbf6d791e81e27 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 3157d985bb6dbb3f0d13c8274c843047411a2585d45ff06341f6b93b0b2637af all runs: OK false negative chance: 0.000 # git bisect good 64980441d26995ea5599958740dbf6d791e81e27 Bisecting: 6146 revisions left to test after this (roughly 13 steps) [3fb4ce586ffd0635c5002bb434b5e1a931e03fb4] Merge branch 'docs-next' of git://git.lwn.net/linux.git testing commit 3fb4ce586ffd0635c5002bb434b5e1a931e03fb4 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 6144d4ab4aefdc884dd6a8e6f8ba53681347dea2a6148a27323867b22b45bda6 run #0: crashed: WARNING: lock held when returning to user space in get_next_vma run #1: crashed: possible deadlock in get_next_vma run #2: crashed: WARNING: bad unlock balance in query_matching_vma run #3: crashed: WARNING: lock held when returning to user space in get_next_vma run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in mas_next_slot run #5: crashed: WARNING: lock held when returning to user space in get_next_vma run #6: crashed: WARNING: lock held when returning to user space in get_next_vma run #7: crashed: possible deadlock in get_next_vma run #8: crashed: possible deadlock in get_next_vma run #9: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: WARNING: lock held when returning to user space in get_next_vma, types: [LOCKDEP] # git bisect bad 3fb4ce586ffd0635c5002bb434b5e1a931e03fb4 Bisecting: 2986 revisions left to test after this (roughly 12 steps) [5c54d6a00fa797289b6b7b5abf9b0f710a3c8fe7] btrfs: don't use token set/get accessors for btrfs_item members testing commit 5c54d6a00fa797289b6b7b5abf9b0f710a3c8fe7 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 460b5080cbf6924c025b0508004c23864359d3fe174132b7c4193900fdd1e5e3 all runs: OK false negative chance: 0.000 # git bisect good 5c54d6a00fa797289b6b7b5abf9b0f710a3c8fe7 Bisecting: 1543 revisions left to test after this (roughly 11 steps) [3c5ed92f7caf8d88c26cb39c0b5fc4a7245628c0] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap.git testing commit 3c5ed92f7caf8d88c26cb39c0b5fc4a7245628c0 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 4ae6304e9f71f8128e5a73ff875dbee768c1b37b5060da96d82b5dd1925a69e5 run #0: crashed: WARNING: bad unlock balance in query_matching_vma run #1: crashed: possible deadlock in get_next_vma run #2: crashed: possible deadlock in get_next_vma run #3: crashed: WARNING: lock held when returning to user space in get_next_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: possible deadlock in get_next_vma run #6: crashed: possible deadlock in get_next_vma run #7: crashed: WARNING: lock held when returning to user space in get_next_vma run #8: crashed: possible deadlock in get_next_vma run #9: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: WARNING: bad unlock balance in query_matching_vma, types: [LOCKDEP] # git bisect bad 3c5ed92f7caf8d88c26cb39c0b5fc4a7245628c0 Bisecting: 739 revisions left to test after this (roughly 10 steps) [dac70e151c64311c322759527f64a83412ecc9d8] Merge branch 'mm-nonmm-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit dac70e151c64311c322759527f64a83412ecc9d8 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: b2bbe47df26b764056d2611fefb539d86f42d0ba833057b92e578270a64ee599 all runs: OK false negative chance: 0.000 # git bisect good dac70e151c64311c322759527f64a83412ecc9d8 Bisecting: 373 revisions left to test after this (roughly 9 steps) [7b2cb52d0f85afaafe36577eabeedd40ac18bf2e] Merge branch 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git testing commit 7b2cb52d0f85afaafe36577eabeedd40ac18bf2e gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 84bcb68e1169ffb9fcb1c4907da5b0db913b63a04d7376c059916e12d7c02321 run #0: crashed: WARNING: bad unlock balance in query_matching_vma run #1: crashed: WARNING: lock held when returning to user space in get_next_vma run #2: crashed: WARNING: bad unlock balance in query_matching_vma run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in lock_next_vma run #4: crashed: WARNING: bad unlock balance in query_matching_vma run #5: crashed: WARNING: lock held when returning to user space in get_next_vma run #6: crashed: WARNING: lock held when returning to user space in get_next_vma run #7: crashed: WARNING: bad unlock balance in query_matching_vma run #8: crashed: possible deadlock in get_next_vma run #9: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: WARNING: bad unlock balance in query_matching_vma, types: [LOCKDEP] # git bisect bad 7b2cb52d0f85afaafe36577eabeedd40ac18bf2e Bisecting: 191 revisions left to test after this (roughly 8 steps) [779937480418261c0c0589b29697d1b943d4b878] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git testing commit 779937480418261c0c0589b29697d1b943d4b878 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2491eac95706d79fb8228f456c35dbdaa880545a6c217d8c6fa3af81702092ee run #0: crashed: WARNING: lock held when returning to user space in get_next_vma run #1: crashed: possible deadlock in get_next_vma run #2: crashed: WARNING: bad unlock balance in query_matching_vma run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: possible deadlock in get_next_vma run #5: crashed: WARNING: lock held when returning to user space in get_next_vma run #6: crashed: WARNING: lock held when returning to user space in get_next_vma run #7: crashed: WARNING: bad unlock balance in query_matching_vma run #8: crashed: WARNING: lock held when returning to user space in get_next_vma run #9: crashed: WARNING: lock held when returning to user space in get_next_vma representative crash: WARNING: lock held when returning to user space in get_next_vma, types: [LOCKDEP] # git bisect bad 779937480418261c0c0589b29697d1b943d4b878 Bisecting: 86 revisions left to test after this (roughly 7 steps) [ea87f6450449181eaaad3103cd8956f792e9a069] mm/page-flags: remove folio_mapping_flags() testing commit ea87f6450449181eaaad3103cd8956f792e9a069 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7de39ff2dbcd264b992565a14ac687b693326820ade98b17f58c8b0e06a37f6c all runs: OK false negative chance: 0.000 # git bisect good ea87f6450449181eaaad3103cd8956f792e9a069 Bisecting: 43 revisions left to test after this (roughly 6 steps) [bd3ac3e81d3c3c4febcd2b617d9dbb7164583189] mm, vmstat: remove the NR_WRITEBACK_TEMP node_stat_item counter testing commit bd3ac3e81d3c3c4febcd2b617d9dbb7164583189 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2ef5dedd5f6d9e4d3162af7dde4d670985a0e9a7236e4d5fec286ff7b25b3d65 run #0: crashed: WARNING: lock held when returning to user space in get_next_vma run #1: crashed: possible deadlock in get_next_vma run #2: crashed: possible deadlock in get_next_vma run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: WARNING: bad unlock balance in query_matching_vma run #6: crashed: WARNING: bad unlock balance in query_matching_vma run #7: crashed: WARNING: lock held when returning to user space in get_next_vma run #8: crashed: WARNING: lock held when returning to user space in get_next_vma run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in mas_next_slot representative crash: WARNING: lock held when returning to user space in get_next_vma, types: [LOCKDEP] # git bisect bad bd3ac3e81d3c3c4febcd2b617d9dbb7164583189 Bisecting: 21 revisions left to test after this (roughly 5 steps) [0bfd7d4e14e54fa61b736117170b7ce718354b2e] mm/vmscan: make __node_reclaim() more generic testing commit 0bfd7d4e14e54fa61b736117170b7ce718354b2e gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: b85141d7aae98b556b67f92b82be0b776a242837b24ce35a7d14fe17dcee70af all runs: OK false negative chance: 0.000 # git bisect good 0bfd7d4e14e54fa61b736117170b7ce718354b2e Bisecting: 10 revisions left to test after this (roughly 4 steps) [bc9820326fc9259090be25b303103273100df395] samples/damon/wsse: rename to have damon_sample_ prefix testing commit bc9820326fc9259090be25b303103273100df395 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: e248d90b8fd3fe2114fbca4e8b39920b3ee3e669c068b5bd9dd26fa5ac14b84e run #0: crashed: WARNING: lock held when returning to user space in get_next_vma run #1: crashed: WARNING: lock held when returning to user space in get_next_vma run #2: crashed: possible deadlock in get_next_vma run #3: crashed: possible deadlock in get_next_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: possible deadlock in get_next_vma run #6: crashed: WARNING: bad unlock balance in query_matching_vma run #7: crashed: WARNING: lock held when returning to user space in get_next_vma run #8: crashed: possible deadlock in get_next_vma run #9: crashed: possible deadlock in get_next_vma representative crash: WARNING: lock held when returning to user space in get_next_vma, types: [LOCKDEP] # git bisect bad bc9820326fc9259090be25b303103273100df395 Bisecting: 5 revisions left to test after this (roughly 3 steps) [122b854f81c0ed361243a200c173d7711ee47f6b] selftests/proc: test PROCMAP_QUERY ioctl while vma is concurrently modified testing commit 122b854f81c0ed361243a200c173d7711ee47f6b gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 4cc16457ddf2c460d87d3b4deaec8bc8524953431a56ad8534ff5592f73b4b4a all runs: OK false negative chance: 0.000 # git bisect good 122b854f81c0ed361243a200c173d7711ee47f6b Bisecting: 2 revisions left to test after this (roughly 2 steps) [ee805a6f9009f68419371a3951f1a1005ad6c54e] fs/proc/task_mmu: read proc/pid/maps under per-vma lock testing commit ee805a6f9009f68419371a3951f1a1005ad6c54e gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: b5621bd65a4b7b97d8bf20ddb912cd47876326af036c02f73c5e72c83362acce all runs: OK false negative chance: 0.000 # git bisect good ee805a6f9009f68419371a3951f1a1005ad6c54e Bisecting: 0 revisions left to test after this (roughly 1 step) [0163463f9dcc965060c5f51de69727d1b21d2b2b] mm/mglru: stop try_to_inc_min_seq() if the oldest generation LRU lists are not empty testing commit 0163463f9dcc965060c5f51de69727d1b21d2b2b gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: a01f63fd33f7cf0b2b8c4dc55c95e35ecea13ee2066ff5669d9c2e1f2497cf98 run #0: crashed: WARNING: bad unlock balance in query_matching_vma run #1: crashed: WARNING: lock held when returning to user space in get_next_vma run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in mtree_range_walk run #3: crashed: WARNING: bad unlock balance in query_matching_vma run #4: crashed: WARNING: lock held when returning to user space in get_next_vma run #5: crashed: WARNING: bad unlock balance in query_matching_vma run #6: crashed: WARNING: lock held when returning to user space in get_next_vma run #7: crashed: BUG: unable to handle kernel paging request in lock_next_vma run #8: crashed: WARNING: bad unlock balance in query_matching_vma run #9: crashed: WARNING: bad unlock balance in query_matching_vma representative crash: WARNING: bad unlock balance in query_matching_vma, types: [LOCKDEP] # git bisect bad 0163463f9dcc965060c5f51de69727d1b21d2b2b Bisecting: 0 revisions left to test after this (roughly 0 steps) [fb8a9ee1f05345b1fae37902d32d954d2150437b] fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks revisions tested: 22, total time: 12h3m46.524279164s (build: 7h20m20.09575732s, test: 3h57m45.237547554s) error: bisection is taking too long (>12h0m0s), aborting