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[PATCH] On Hurd, don't use not implemented madvise()


From: manolis837
Subject: [PATCH] On Hurd, don't use not implemented madvise()
Date: Tue, 30 May 2017 12:26:27 +0300

From: Manolis Ragkousis <address@hidden>

On Hurd, because madvise() is not implemented we disable it.

* libguile/vm.c (return_unused_stack_to_os): Don't use madvise() on Hurd.
---
 libguile/vm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libguile/vm.c b/libguile/vm.c
index 18f219249..7089f23c7 100644
--- a/libguile/vm.c
+++ b/libguile/vm.c
@@ -896,6 +896,8 @@ return_unused_stack_to_os (struct scm_vm *vp)
 
   /* Return these pages to the OS.  The next time they are paged in,
      they will be zeroed.  */
+#if !defined __gnu_hurd__
+  /* madvise() is not implemented on GNU Hurd. */
   if (lo < hi)
     {
       int ret = 0;
@@ -907,7 +909,7 @@ return_unused_stack_to_os (struct scm_vm *vp)
       if (ret)
         perror ("madvise failed");
     }
-
+#endif
   vp->sp_min_since_gc = vp->sp;
 #endif
 }
-- 
2.13.0




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