From owner-freebsd-arm@freebsd.org Sat Jun 2 21:05:02 2018 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6B69EFE7319 for ; Sat, 2 Jun 2018 21:05:02 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (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 B55F2783A5 for ; Sat, 2 Jun 2018 21:05:01 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kib@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTP id w52L4oRb063635; Sun, 3 Jun 2018 00:04:53 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua w52L4oRb063635 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id w52L4oFR063634; Sun, 3 Jun 2018 00:04:50 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Sun, 3 Jun 2018 00:04:50 +0300 From: Konstantin Belousov To: Warner Losh Cc: bob prohaska , freebsd-arm@freebsd.org Subject: Re: panic: Assertion td->td_lock == TDQ_LOCKPTR(tdq) failed at /usr/src/sys/kern/sched_ule.c:2137 Message-ID: <20180602210450.GK3789@kib.kiev.ua> References: <20180601154153.GA62632@www.zefox.net> <20180602091606.63a1ab37.freebsd.ed.lists@sumeritec.com> <20180602150549.GA68197@www.zefox.net> <20180602193255.GA68908@www.zefox.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.0 (2018-05-17) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Jun 2018 21:05:02 -0000 On Sat, Jun 02, 2018 at 02:39:00PM -0600, Warner Losh wrote: > On Sat, Jun 2, 2018, 1:32 PM bob prohaska wrote: > > > On Sat, Jun 02, 2018 at 09:14:18AM -0600, Warner Losh wrote: > > > > > > Do you have r334508? It fixes the OOM falsely triggering. > > > > > At the moment sources are at 334456, world and kernel are at > > 334276. > > > > Might it be feasible to stop the present buildworld, update > > sources and then try to build a new kernel before building > > world? > > > > That's recent enough that you should be fine. There might be an lld vs > binutils ld issue. There was on i386 recently, but I think it was i386 > specific. It's a good risk. This happens on arm64 ? In fact, try this. I did not even compiled the change. diff --git a/sys/arm64/arm64/swtch.S b/sys/arm64/arm64/swtch.S index c9843303b1d..4c2c3aca583 100644 --- a/sys/arm64/arm64/swtch.S +++ b/sys/arm64/arm64/swtch.S @@ -165,10 +165,9 @@ ENTRY(cpu_switch) mov x0, x19 /* - * Release the old thread. This doesn't need to be a store-release - * as the above dsb instruction will provide release semantics. + * Release the old thread. */ - str x2, [x0, #TD_LOCK] + stlr x2, [x0, #TD_LOCK] #if defined(SCHED_ULE) && defined(SMP) /* Spin if TD_LOCK points to a blocked_lock */ ldr x2, =_C_LABEL(blocked_lock)