Change the vnode locking in exec to not keep the vnode locked almost all

the time.

This could lead to problems when a process wants to do an exec on the same
vnode it's being run from and needs to copy in arguments from an uncached
page in the data segment. When that happens uvm detects a vnode deadlock
and returns an error causing execve() return EFAULT.

This fixes the regress test in regress/sys/kern/exec_self

Also, initialize scriptvp early in exec_script because it could be
used uninitialized in a failure case.

0 files changed, 0 insertions, 0 deletions