Date: Tue, 31 Oct 2000 05:59:25 +0100 From: Tor.Egge@fast.no To: johan@FreeBSD.org Cc: freebsd-bugs@FreeBSD.org Subject: Re: kern/2840: mlock+minherit+fork+munlock causes panics or freezes Message-ID: <200010310459.FAA21495@midten.fast.no> In-Reply-To: Your message of "Tue, 31 Oct 2000 04:07:46 %2B0100"
next in thread | raw e-mail | index | archive | help
> > Hi Tor > > > > Is this still a problem in more recent version of FreeBSD > > (for example 4.x or current). > > This is still a problem: Here is a suggested fix. vmspace_fork() didn't clear the MAP_ENTRY_USER_WIRED flag on the new map entries. Index: vm_map.c =================================================================== RCS file: /home/ncvs/src/sys/vm/vm_map.c,v retrieving revision 1.191 diff -u -r1.191 vm_map.c --- vm_map.c 2000/10/04 01:29:17 1.191 +++ vm_map.c 2000/10/31 04:52:44 @@ -2149,6 +2149,7 @@ */ new_entry = vm_map_entry_create(new_map); *new_entry = *old_entry; + new_entry->eflags &= ~MAP_ENTRY_USER_WIRED; new_entry->wired_count = 0; /* @@ -2175,6 +2176,7 @@ */ new_entry = vm_map_entry_create(new_map); *new_entry = *old_entry; + new_entry->eflags &= ~MAP_ENTRY_USER_WIRED; new_entry->wired_count = 0; new_entry->object.vm_object = NULL; vm_map_entry_link(new_map, new_map->header.prev, - Tor Egge To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200010310459.FAA21495>