bisecting fixing commit since 2f166cdcf8a92fcf85524f2b5526cb28e16f0a60
building syzkaller on abf9ba4fc75d9b29af15625d44dcfc1360fad3b7
testing commit 2f166cdcf8a92fcf85524f2b5526cb28e16f0a60 with gcc (GCC) 8.1.0
kernel signature: 8f21f053b6ddc970351c54350f9d57bf4140516e8973104f364725c9153ec17d
run #0: crashed: general protection fault in __insert_vmap_area
run #1: crashed: PANIC: double fault in __switch_to_asm
run #2: crashed: unexpected kernel reboot
run #3: crashed: BUG: corrupted list in copy_process
run #4: crashed: kernel panic: Fatal exception
run #5: crashed: general protection fault in anon_vma_interval_tree_insert
run #6: crashed: BUG: corrupted list in tty_write_lock
run #7: crashed: general protection fault in mm_update_next_owner
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in corrupted
run #9: crashed: kernel panic: Fatal exception
testing current HEAD bae31eef2a167ef160ab2703b6a2f5bbecd98d92
testing commit bae31eef2a167ef160ab2703b6a2f5bbecd98d92 with gcc (GCC) 8.1.0
kernel signature: bcc77a7ae3ad0ab54b6fb4735718e4e669af7d91bc2c539b682701aa7cbb99ce
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in corrupted
run #1: crashed: BUG: corrupted list in tty_write_lock
run #2: crashed: PANIC: double fault in __switch_to_asm
run #3: crashed: WARNING in __put_task_struct
run #4: crashed: general protection fault in get_unmapped_area
run #5: crashed: general protection fault in __schedule
run #6: crashed: general protection fault in __switch_to
run #7: crashed: BUG: unable to handle kernel paging request in mm_update_next_owner
run #8: crashed: WARNING in debug_mutex_wake_waiter
run #9: crashed: no output from test machine
revisions tested: 2, total time: 31m39.659231024s (build: 17m35.685500345s, test: 13m10.941713338s)
the crash still happens on HEAD
commit msg: Linux 4.14.200
crash: no output from test machine