multicore boot error: uvm_fault: softclock

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: e1e7ed06 rename functions and types unrelated to the highe..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=164252c3e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=570c8cb3c928bb9f59cb

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+570c8c...@syzkaller.appspotmail.com

uvm_fault(0xffffffff82630248, 0x7, 0, 2) -> e
kernel: page fault trap, code=0
Stopped at softclock+0x5c: movq %rcx,0x8(%rax)
ddb{0}>


---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

[Anton Lindqvist]

#syz fix: previous commit accidentally aliased two unique timeouts hit by millert