Date: Wed, 10 Feb 1999 14:59:28 -0800 (PST) From: marcel@scc.nl To: freebsd-gnats-submit@FreeBSD.ORG Subject: i386/10015: Linux emulator: sig 11 on process exit Message-ID: <199902102259.OAA02485@hub.freebsd.org>
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>Number: 10015
>Category: i386
>Synopsis: Linux emulator: sig 11 on process exit
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Feb 10 15:00:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: Marcel Moolenaar
>Release: 3.0-stable
>Organization:
SCC vof
>Environment:
FreeBSD scones.sup.scc.nl 3.0-STABLE FreeBSD 3.0-STABLE #11: Wed Feb 10 23:40:27 CET 1999 marcel@scones.sup.scc.nl:/usr/src/sys/compile/SCONES i386
>Description:
Statically linked Linux binaries seg fault when exiting. This is
caused by a call to atexit with an invalid address. This call is
especially made when register DX is non-zero when a newly created
process starts running (e.g. it's entry point is called).
>How-To-Repeat:
n/a
>Fix:
Apply the following patch:
*** machdep.c.orig Wed Feb 10 23:49:27 1999
--- machdep.c Wed Feb 10 23:48:52 1999
***************
*** 860,865 ****
--- 860,872 ----
/* Initialize the npx (if any) for the current process. */
npxinit(__INITIAL_NPXCW__);
#endif
+
+ /*
+ * XXX - Linux emulator
+ * Make sure sure edx is 0x0 on entry. Linux binaries depend
+ * on it.
+ */
+ p->p_retval[1] = 0;
}
static int
>Release-Note:
>Audit-Trail:
>Unformatted:
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