Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261464AbVDNIak (ORCPT ); Thu, 14 Apr 2005 04:30:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261466AbVDNIag (ORCPT ); Thu, 14 Apr 2005 04:30:36 -0400 Received: from fmr17.intel.com ([134.134.136.16]:59824 "EHLO orsfmr002.jf.intel.com") by vger.kernel.org with ESMTP id S261464AbVDNIaM (ORCPT ); Thu, 14 Apr 2005 04:30:12 -0400 Subject: Re: [PATCH 6/6]suspend/resume SMP support From: Li Shaohua To: Pavel Machek , Andrew Morton Cc: lkml , ACPI-DEV , Len Brown , Zwane Mwaikambo In-Reply-To: <20050413083202.GA1361@elf.ucw.cz> References: <1113283867.27646.434.camel@sli10-desk.sh.intel.com> <20050412105115.GD17903@elf.ucw.cz> <1113309627.5155.3.camel@sli10-desk.sh.intel.com> <20050413083202.GA1361@elf.ucw.cz> Content-Type: multipart/mixed; boundary="=-igLhIkYQx1ErPIV3eZwv" Message-Id: <1113467253.2568.10.camel@sli10-desk.sh.intel.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Thu, 14 Apr 2005 16:27:33 +0800 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4755 Lines: 125 --=-igLhIkYQx1ErPIV3eZwv Content-Type: text/plain Content-Transfer-Encoding: 7bit On Wed, 2005-04-13 at 16:32, Pavel Machek wrote: > root@hobit:/sys/devices/system/cpu/cpu1# dmesg | tail -25 > [] activate_task+0x1/0xa0 > [] resched_task+0x68/0x90 > [] try_to_wake_up+0x2aa/0x2f0 > [] fbcon_cursor+0x19a/0x270 > [] hide_cursor+0x18/0x30 > [] vt_console_print+0x24f/0x260 > [] vt_console_print+0x0/0x260 > [] __call_console_drivers+0x57/0x60 > [] call_console_drivers+0x80/0x110 > [] release_console_sem+0x4e/0xc0 > [] vprintk+0x192/0x240 > [] preempt_schedule_irq+0x51/0x80 > [] acpi_processor_idle+0x0/0x265 > [] need_resched+0x1f/0x21 > [] acpi_processor_idle+0x0/0x265 > [] printk+0x17/0x20 > [] cpu_init+0x73/0x360 > [] start_secondary+0x6/0x170 > Code: d2 74 bd fc 8b 44 24 28 b9 0e 00 00 00 8b 74 24 14 01 c6 b8 0e > 00 00 00 89 74 24 1c 8b 74 24 30 89 44 24 10 8b 7c 24 1c 83 c6 10 > a5 8b 74 24 24 8b 44 24 1c 89 4c 24 10 01 ee f7 d5 21 ee 89 > <0>Kernel panic - not syncing: Attempted to kill the idle task! > Stuck ?? > Inquiring remote APIC #0... > ... APIC #0 ID: 00000000 > ... APIC #0 VERSION: 00040011 > ... APIC #0 SPIV: 000000ff > root@hobit:/sys/devices/system/cpu/cpu1# Andrew, Below patch fixed Pavel's oops. But strange is the 'system_state' check is added for CPU hotplug by Rusty. This really makes me confused. Could you please look at it. This can be reproduced 100% with radeonfb driver load. Attached is the dmesg of an oops. It seems the 'objp' parameter for 'cache_alloc_debugcheck_after' is invalid. Thanks, Shaohua --- a/kernel/printk.c 2005-04-12 10:12:19.000000000 +0800 +++ b/kernel/printk.c 2005-04-13 17:22:40.912897328 +0800 @@ -624,8 +624,7 @@ asmlinkage int vprintk(const char *fmt, log_level_unknown = 1; } - if (!cpu_online(smp_processor_id()) && - system_state != SYSTEM_RUNNING) { + if (!cpu_online(smp_processor_id())) { /* * Some console drivers may assume that per-cpu resources have * been allocated. So don't allow them to be called by this --=-igLhIkYQx1ErPIV3eZwv Content-Disposition: attachment; filename=ht Content-Type: text/plain; name=ht; charset=UTF-8 Content-Transfer-Encoding: 7bit CPU0 attaching NULL sched-domain. CPU1 attaching NULL sched-domain. CPU0 attaching NULL sched-domain. Booting processor 1/1 eip 3000 Initializing CPU#1 masked ExtINT on CPU#1 Unable to handle kernel paging request at virtual address f000acb2 printing eip: c014e4cc *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 1 EIP: 0060:[] Not tainted VLI EFLAGS: 00010097 (2.6.12-rc2-mm3) EIP is at check_poison_obj+0x4c/0x1e0 eax: 0000006b ebx: 0000005a ecx: dff6e080 edx: dff6e480 esi: 00000000 edi: f000acb2 ebp: 00000080 esp: c14fdcd4 ds: 007b es: 007b ss: 0068 Process swapper (pid: 0, threadinfo=c14fc000 task=dff42560) Stack: dff6e480 5a5a5a5a 5a5a5a5a 0000007f 5a5a5a5a 00000000 0000005a f000acae dff6e480 c021192e c0150031 dff6e480 f000acae 5a5a5a5a 5a5a5a5a dff6e480 00000046 00000020 00000010 c015044b dff6e480 00000020 f000acae c021192e Call Trace: [] soft_cursor+0x5e/0x260 [] cache_alloc_debugcheck_after+0x181/0x1a0 [] __kmalloc+0x9b/0xd0 [] soft_cursor+0x5e/0x260 [] soft_cursor+0x5e/0x260 [] bit_cursor+0x339/0x540 [] recalc_task_prio+0x88/0x150 [] fbcon_cursor+0x1a2/0x270 [] hide_cursor+0x25/0x40 [] vt_console_print+0x2aa/0x2b0 [] __call_console_drivers+0x62/0x70 [] call_console_drivers+0x96/0x130 [] release_console_sem+0x51/0xc0 [] vprintk+0x19f/0x250 [] __do_softirq+0xd6/0xf0 [] preempt_schedule_irq+0x4b/0x80 [] printk+0x17/0x20 [] setup_local_APIC+0xe2/0x1d0 [] smp_callin+0x7a/0x120 [] start_secondary+0xe/0x190 Code: 24 30 89 14 24 01 c7 e8 13 f8 ff ff 39 44 24 14 89 c5 0f 8d b7 00 00 00 8d 40 ff 89 44 24 0c 3b 74 24 0c b0 6b 0f 84 8c 01 00 00 <38> 04 3e 74 46 8b 44 24 14 85 c0 0f 84 48 01 00 00 89 3c 24 83 <0>Kernel panic - not syncing: Attempted to kill the idle task! Stuck ?? Inquiring remote APIC #1... ... APIC #1 ID: failed ... APIC #1 VERSION: failed ... APIC #1 SPIV: failed --=-igLhIkYQx1ErPIV3eZwv-- - 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/