Date: Thu, 08 Feb 2018 18:06:50 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 225584] Various compile process hang on Ryzen, but not on Intel Message-ID: <bug-225584-8-yHSjcy4ndZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-225584-8@https.bugs.freebsd.org/bugzilla/> References: <bug-225584-8@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225584 --- Comment #59 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to mike from comment #58) Lets try a slight variation. diff --git a/lib/libc/stdio/_flock_stub.c b/lib/libc/stdio/_flock_stub.c index 069ed64c4e9..935bf18b529 100644 --- a/lib/libc/stdio/_flock_stub.c +++ b/lib/libc/stdio/_flock_stub.c @@ -39,12 +39,16 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <sys/types.h> +#include <machine/atomic.h> #include "namespace.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include <pthread.h> #include "un-namespace.h" +#include <signal.h> +#include <unistd.h> #include "local.h" @@ -112,11 +116,14 @@ void _funlockfile(FILE *fp) { pthread_t curthread =3D _pthread_self(); + pthread_t fl_owner; /* * Check if this file is owned by the current thread: */ - if (fp->_fl_owner =3D=3D curthread) { + while ((fl_owner =3D (pthread_t)atomic_load_ptr(&fp->_fl_owner)) = =3D=3D NULL) + ; + if (fl_owner =3D=3D curthread) { /* * Check if this thread has locked the FILE * more than once: @@ -138,4 +145,11 @@ _funlockfile(FILE *fp) _pthread_mutex_unlock(&fp->_fl_mutex); } } + else { + char x[120]; + snprintf(x, sizeof(x), "funlockfile %p %p %p %p\n", fp, + curthread, fl_owner, fp->_fl_owner); + write(2, x, strlen(x)); + raise(SIGBUS); + } } --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-225584-8-yHSjcy4ndZ>