From owner-freebsd-bugs@freebsd.org Mon May 29 13:01:01 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9F6F8CFE8DF for ; Mon, 29 May 2017 13:01:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 8506178CF3 for ; Mon, 29 May 2017 13:01:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v4TD0w7n023009 for ; Mon, 29 May 2017 13:01:01 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 213903] Kernel crashes from turnstile_broadcast (/usr/src/sys/kern/subr_turnstile.c:837) Date: Mon, 29 May 2017 13:00:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: peixoto.cassiano@gmail.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 May 2017 13:01:01 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213903 --- Comment #31 from Cassiano Peixoto --- Hi Mateusz, After some time i had a server with FreeBSD 11-p1 crashed with your patch applied.=20 See bellow:=20 (kgdb) list *0xffffffff80b317ac 0xffffffff80b317ac is in turnstile_broadcast (/usr/src/sys/kern/subr_turnstile.c:837). 832=20=20=20=20=20 833 /* 834 * Transfer the blocked list to the pending list. 835 */ 836 mtx_lock_spin(&td_contested_lock); 837 TAILQ_CONCAT(&ts->ts_pending, &ts->ts_blocked[queue], td_lockq); 838 mtx_unlock_spin(&td_contested_lock); 839=20=20=20=20=20 840 /* 841 * Give a turnstile to each thread. The last thread gets Current language: auto; currently minimal (kgdb) bt #0 doadump (textdump=3D) at pcpu.h:221 #1 0xffffffff80acfd69 in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:366 #2 0xffffffff80ad031b in vpanic (fmt=3D, ap=3D) at /usr/src/sys/kern/kern_shutdown.c:759 #3 0xffffffff80ad0153 in panic (fmt=3D0x0) at /usr/src/sys/kern/kern_shutdown.c:690 #4 0xffffffff80ee2d21 in trap_fatal (frame=3D0xfffffe02378e0850, eva=3D32)= at /usr/src/sys/amd64/amd64/trap.c:841 #5 0xffffffff80ee2f13 in trap_pfault (frame=3D0xfffffe02378e0850, usermode= =3D0) at /usr/src/sys/amd64/amd64/trap.c:691 #6 0xffffffff80ee24bc in trap (frame=3D0xfffffe02378e0850) at /usr/src/sys/amd64/amd64/trap.c:442 #7 0xffffffff80ec5951 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:236 #8 0xffffffff80b317ac in turnstile_broadcast (ts=3D0x0, queue=3D0) at /usr/src/sys/kern/subr_turnstile.c:837 #9 0xffffffff80aabb70 in __mtx_unlock_sleep (c=3D0xffffffff81cab130, opts= =3D, file=3D0x1
, line=3D1) at /usr/src/sys/kern/kern_mutex.c:865 #10 0xffffffff80d42dd1 in swap_reserve_by_cred (incr=3D, cred=3D) at /usr/src/sys/vm/swap_pager.c:224 #11 0xffffffff80d58f49 in kmap_alloc_wait (map=3D0xfffff800061d7c30, size= =3D266240) at /usr/src/sys/vm/vm_kern.c:437 #12 0xffffffff80a7cf5c in exec_copyin_args (args=3D0xfffffe02378e0a70, fname=3D0x801436b58
, segflg=3DUIO_USERS= PACE, argv=3D0x801436a98, envv=3D0x801436b20) at /usr/src/sys/kern/kern_exec.c:1326 #13 0xffffffff80a7cdb8 in sys_execve (td=3D0xfffff8013d03ba00, uap=3D0xfffffe02378e0b80) at /usr/src/sys/kern/kern_exec.c:215 #14 0xffffffff80ee367e in amd64_syscall (td=3D, traced= =3D0) at subr_syscall.c:135 #15 0xffffffff80ec5c3b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:396 #16 0x0000000800b45daa in ?? () --=20 You are receiving this mail because: You are the assignee for the bug.=