git bisect start
# good: [fb1532869a3921bc217edb2f06964e9efd75a568] Merge branch 'akpm-current/current'
git bisect good fb1532869a3921bc217edb2f06964e9efd75a568
# bad: [d8fe403d09764591d25ffc728949b2f3a0020773] Merge branch 'akpm/master'
git bisect bad d8fe403d09764591d25ffc728949b2f3a0020773
# good: [be851d19f3a162b68836da8ab8772ae7f8eba79a] drivers/usb/gadget/amd5536udc.c: avoid calling dma_pool_create() with NULL dev
git bisect good be851d19f3a162b68836da8ab8772ae7f8eba79a
# good: [0d46acb92aaa6077b3dd859d1636d72615e2a636] drivers/rtc/rtc-generic.c: remove empty function
git bisect good 0d46acb92aaa6077b3dd859d1636d72615e2a636
# bad: [8b346fdf43f14501db193e9088b2e44d20430a52] ia64: remove setting for saved_max_pfn
git bisect bad 8b346fdf43f14501db193e9088b2e44d20430a52
# good: [f802d8cca28b3497dd74557eed476c531efb93f5] ptrace/x86: revert "hw_breakpoints: Fix racy access to ptrace breakpoints"
git bisect good f802d8cca28b3497dd74557eed476c531efb93f5
# good: [92f7d08c6972cd5f8d6fa8a1b2e0fb59af9675fe] coredump: kill cn_escape(), introduce cn_esc_printf()
git bisect good 92f7d08c6972cd5f8d6fa8a1b2e0fb59af9675fe
# good: [fa920e518e9ac4bf819d47e0c34460c1c5b8dc4c] kernel/fork.c:copy_process(): don't add the uninitialized child to thread/task/pid lists
git bisect good fa920e518e9ac4bf819d47e0c34460c1c5b8dc4c
# bad: [43de5170e6435da91a6dc9f0255fedb90f29ec8b] wait: introduce prepare_to_wait_event()
git bisect bad 43de5170e6435da91a6dc9f0255fedb90f29ec8b
# good: [930854cd19c6840167e8c993cbeab34c56de63d1] fs/exec.c: do_execve_common(): use current_user()
git bisect good 930854cd19c6840167e8c993cbeab34c56de63d1
# bad: [bb1f30cb7d3ba21098f0ee7e0382160ba2599a43] wait: introduce wait_event_common(wq, condition, state, timeout)
git bisect bad bb1f30cb7d3ba21098f0ee7e0382160ba2599a43
# good: [94dca9a282022d9e5c667f96142c6175cf2e598f] fs/exec.c:de_thread: mt-exec should update ->real_start_time
git bisect good 94dca9a282022d9e5c667f96142c6175cf2e598f
# first bad commit: [bb1f30cb7d3ba21098f0ee7e0382160ba2599a43] wait: introduce wait_event_common(wq, condition, state, timeout)