---
- branch: MAIN
  date: Sun Aug  5 04:26:10 UTC 2012
  files:
  - new: '1.27'
    old: '1.26'
    path: src/sys/kern/sys_descrip.c
    pathrev: src/sys/kern/sys_descrip.c@1.27
    type: modified
  id: 20120805T042610Z.3f7469d69ed590c2e1f2c1a0989df6815a858231
  log: |
    Force sys_close not to restart by returning ERESTART.

    Print a diagnostic message if we ever get ERESTART out of fd_close
    and convert it to EINTR instead.

    Even if fd_close fails, it has already closed the file descriptor, so
    restarting the system call is a mistake, with dangerous consequences
    for multithreaded programs.

    Should probably turn the message into a kassert eventually, and maybe
    add one deeper in fd_close in order to more easily debug it before
    all the data structures are destroyed.
  module: src
  subject: 'CVS commit: src/sys/kern'
  unixtime: '1344140770'
  user: riastradh