Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267454AbUJVUKq (ORCPT ); Fri, 22 Oct 2004 16:10:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267370AbUJVUIB (ORCPT ); Fri, 22 Oct 2004 16:08:01 -0400 Received: from mx2.elte.hu ([157.181.151.9]:39377 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S267376AbUJVUHA (ORCPT ); Fri, 22 Oct 2004 16:07:00 -0400 Date: Fri, 22 Oct 2004 22:08:14 +0200 From: Ingo Molnar To: Alexander Batyrshin Cc: "Ext-Rt-Dev@Mvista. Com" , linux-kernel@vger.kernel.org Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U9.3 Message-ID: <20041022200814.GC9366@elte.hu> References: <20041014234202.GA26207@elte.hu> <20041015102633.GA20132@elte.hu> <20041016153344.GA16766@elte.hu> <20041018145008.GA25707@elte.hu> <20041019124605.GA28896@elte.hu> <20041019180059.GA23113@elte.hu> <20041020094508.GA29080@elte.hu> <20041021132717.GA29153@elte.hu> <20041022133551.GA6954@elte.hu> <41795467.7070003@ru.mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <41795467.7070003@ru.mvista.com> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3150 Lines: 75 how about U10.3? That has the BKL fix too. Ingo * Alexander Batyrshin wrote: > Hi Ingo, > U9.3 (defconfig) died with trace: > > ------------[ cut here ]------------ > kernel BUG at kernel/sched.c:784! > invalid operand: 0000 [#1] > PREEMPT SMP > Modules linked in: > CPU: 0 > EIP: 0060:[] Not tainted VLI > EFLAGS: 00010002 (2.6.9-rc4-mm1-RT-U9.3) > EIP is at resched_task+0x80/0x8a > eax: 00000001 ebx: c1674000 ecx: dfb578f0 edx: 00000000 > esi: c16712c0 edi: 00000000 ebp: c167bc48 esp: c167bc3c > ds: 007b es: 007b ss: 0068 preempt: 00000003 > Process ksoftirqd/0 (pid: 3, threadinfo=c167a000 task=c1670660) > Stack: c1403820 c1403820 00000000 c167bc94 c0118b78 c16712c0 c1433820 > 00000000 > 00000000 00000000 00000001 00000100 c1433820 c1433820 00000001 > 00000000 > 00000000 00000001 00000082 00000001 de9d3e60 00000001 c167bcd8 > c0133c7b > Call Trace: > [] try_to_wake_up+0x1f3/0x26b (20) > [] autoremove_wake_function+0x2f/0x57 (76) > [] __wake_up_common+0x3f/0x5e (28) > [] __wake_up+0x4b/0x62 (40) > [] sock_def_readable+0x8e/0x90 (52) > [] tcp_child_process+0xe6/0xec (28) > [] tcp_v4_do_rcv+0x123/0x162 (36) > [] _mutex_lock+0x2c/0x3b (16) > [] tcp_v4_rcv+0x6dd/0x92c (16) > [] svc_revisit+0x27/0x154 (48) > [] ip_local_deliver_finish+0x0/0x1b2 (40) > [] ip_local_deliver_finish+0xb6/0x1b2 (4) > [] ip_local_deliver_finish+0x0/0x1b2 (12) > [] nf_hook_slow+0xdc/0x12e (20) > [] ip_local_deliver_finish+0x0/0x1b2 (28) > [] ip_rcv_finish+0x0/0x2b3 (28) > [] ip_local_deliver+0x208/0x226 (4) > [] ip_local_deliver_finish+0x0/0x1b2 (24) > [] ip_rcv_finish+0x123/0x2b3 (20) > [] ip_rcv_finish+0x0/0x2b3 (32) > [] nf_hook_slow+0xdc/0x12e (20) > [] ip_rcv_finish+0x0/0x2b3 (28) > [] ip_rcv+0x481/0x56a (32) > [] ip_rcv_finish+0x0/0x2b3 (24) > [] netif_receive_skb+0x117/0x1dd (28) > [] process_backlog+0xc9/0x1cb (36) > [] net_rx_action+0xb9/0x1ed (48) > [] ___do_softirq+0xe1/0x130 (36) > [] ksoftirqd+0x0/0xda (40) > [] _do_softirq+0x4b/0x4d (4) > [] ksoftirqd+0xa2/0xda (16) > [] kthread+0xb7/0xbd (24) > [] kthread+0x0/0xbd (28) > [] kernel_thread_helper+0x5/0xb (16) > preempt count: 00000004 > . 4-level deep critical section nesting: > .. entry 1: _spin_lock_irqsave+0x1d/0xa5 [<00000000>] / (0x0 [<00000000>]) > .. entry 2: _spin_lock+0x19/0x6d [<00000000>] / (0x0 [<00000000>]) > .. entry 3: _spin_lock_irqsave+0x1d/0xa5 [<00000000>] / (0x0 [<00000000>]) > .. entry 4: print_traces+0x17/0x4e [<00000000>] / (0x0 [<00000000>]) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/