diff options
| author | Sergio López <slpml@sinrega.org> | 2011-09-27 15:52:51 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-09-28 01:12:57 +0200 |
| commit | 0a55db5302a78ea51a1b4e4ff3ba632f34b2f6af (patch) | |
| tree | ff740e3615038781b049caa2ffc05386f4cfeff4 /kern | |
| parent | ec76bb9b04b851f403fac72fddaa8613025c7da4 (diff) | |
Make thread_suspend honor the TH_UNINT flag
Interrupting a thread without a continuation, puts it in a
inconsistent state. This is the cause for the bug described in
https://lists.gnu.org/archive/html/bug-hurd/2011-09/msg00148.html
* kern/thread.c (thread_suspend): Fail with KERN_FAILURE if thread is
uninterruptible.
Diffstat (limited to 'kern')
| -rw-r--r-- | kern/thread.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kern/thread.c b/kern/thread.c index 1548e14..bf2df94 100644 --- a/kern/thread.c +++ b/kern/thread.c @@ -1329,6 +1329,11 @@ kern_return_t thread_suspend( hold = FALSE; spl = splsched(); thread_lock(thread); + if (thread->state & TH_UNINT) { + thread_unlock(thread); + (void) splx(spl); + return KERN_FAILURE; + } if (thread->user_stop_count++ == 0) { hold = TRUE; thread->suspend_count++; |