From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757965AbYDZPCW (ORCPT ); Sat, 26 Apr 2008 11:02:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753603AbYDZPCP (ORCPT ); Sat, 26 Apr 2008 11:02:15 -0400 Received: from ug-out-1314.google.com ([66.249.92.173]:19757 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753467AbYDZPCO (ORCPT ); Sat, 26 Apr 2008 11:02:14 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:organization:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=W5MBZS5krtM8+OMVf8KRg9NERlxhsLI/QHumSADApiKVIWrifNCj42+HoimBRl0oi50zA7/nF+UtANsW/QOHADANDxjbNB29zYpCyqWmgFm1G21BhhMa581lZzbI2t0Hovwln7Bx7MeqNuPQU/vzbqFzZq/nbbFHnFRkegKOh5Y= Message-ID: <481343ED.1060002@gmail.com> Date: Sat, 26 Apr 2008 19:02:05 +0400 From: Dmitri Vorobiev Organization: DmVo Home User-Agent: Thunderbird 1.5.0.14ubu (X11/20080306) MIME-Version: 1.0 To: Andi Kleen CC: mingo@elte.hu, tglx@linutronix.de, torvalds@osdl.org, linux-kernel@vger.kernel.org Subject: Re: mainline boot failures I: qemu References: <20080426140210.GA13365@basil.nowhere.org> In-Reply-To: <20080426140210.GA13365@basil.nowhere.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen wrote: > FYI > > I see lots of boot failures on various setups with current mainline > (git8, b1721d0da266b4af8cb4419473b4ca36206ab200). Unfortunately > they are all different. > > All with a defconfig kernel. I'm experiencing a boot failure with current mainline and QEMU, too. The last commit is same as yours (b1721d0da266b4), but the boot log is different: <<<<<<<<< qemu-0.9.1/bin/qemu-system-x86_64 image_64.raw \ -kernel src/linux-2.6/arch/x86/boot/bzImage \ -append "console=ttyS0 root=/dev/hda1 ro" -nographic \ -redir tcp:2222::22 -m 512 Could not open '/dev/kqemu' - QEMU acceleration layer not activated: No such file or directory Linux version 2.6.25-05096-gb1721d0-dirty (dmitri.vorobiev@amber.auriga.ru) (gcc version 4.1.1 20070105 (Red Hat 4.1.1-51)) #1 SMP Sat Apr 26 18:54:05 MSD 2008 Command line: console=ttyS0 root=/dev/hda1 ro BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001fff0000 (usable) BIOS-e820: 000000001fff0000 - 0000000020000000 (ACPI data) BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved) max_pfn_mapped = 1048576 x86: PAT support disabled. WARNING: strange, CPU MTRRs all blank? ------------[ cut here ]------------ WARNING: at arch/x86/kernel/cpu/mtrr/main.c:696 mtrr_trim_uncached_memory+0x16b/0x176() Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.25-05096-gb1721d0-dirty #1 Call Trace: [] warn_on_slowpath+0x51/0x63 [] printk+0x4e/0x56 [] do_early_param+0x37/0x7d [] mtrr_trim_uncached_memory+0x16b/0x176 [] setup_arch+0x204/0x3b8 [] start_kernel+0x6e/0x2fb [] x86_64_start_kernel+0x1dd/0x1e4 ---[ end trace ca143223eefdc828 ]--- init_memory_mapping DMI not present or invalid. ACPI: RSDP 000FA5E0, 0014 (r0 QEMU ) ACPI: RSDT 1FFF0000, 002C (r0 QEMU QEMURSDT 1 QEMU 1) ACPI: FACP 1FFF002C, 0074 (r0 QEMU QEMUFACP 1 QEMU 1) ACPI: DSDT 1FFF0100, 0832 (r1 BXPC BXDSDT 1 INTL 20060912) ACPI: FACS 1FFF00C0, 0040 ACPI: APIC 1FFF0938, 0040 (r0 QEMU QEMUAPIC 1 QEMU 1) No NUMA configuration found Faking a node at 0000000000000000-000000001fff0000 Bootmem setup node 0 0000000000000000-000000001fff0000 NODE_DATA [000000000000b000 - 0000000000011fff] bootmap [0000000000012000 - 0000000000015fff] pages 4 early res: 0 [0-fff] BIOS data page early res: 1 [6000-7fff] TRAMPOLINE early res: 2 [200000-8dc9c7] TEXT DATA BSS early res: 3 [9fc00-fffff] BIOS reserved early res: 4 [8000-afff] PGTABLE Zone PFN ranges: DMA 0 -> 4096 DMA32 4096 -> 1048576 Normal 1048576 -> 1048576 Movable zone start PFN for each node early_node_map[2] active PFN ranges 0: 0 -> 159 0: 256 -> 131056 ACPI: PM-Timer IO Port: 0xb008 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 1, version 0, address 0xfec00000, GSI 0-23 Setting APIC routing to flat Using ACPI (MADT) for SMP configuration information PM: Registered nosave memory: 000000000009f000 - 00000000000a0000 PM: Registered nosave memory: 00000000000a0000 - 00000000000e8000 PM: Registered nosave memory: 00000000000e8000 - 0000000000100000 Allocating PCI resources starting at 30000000 (gap: 20000000:dffc0000) SMP: Allowing 1 CPUs, 0 hotplug CPUs PERCPU: Allocating 35928 bytes of per cpu data Built 1 zonelists in Node order, mobility grouping on. Total pages: 127310 Policy zone: DMA32 Kernel command line: console=ttyS0 root=/dev/hda1 ro Initializing CPU#0 PID hash table entries: 2048 (order: 11, 16384 bytes) TSC calibrated against PM_TIMER time.c: Detected 3391.388 MHz processor. Console: colour VGA+ 80x25 console [ttyS0] enabled Checking aperture... Memory: 508168k/524224k available (3529k kernel code, 15668k reserved, 2073k data, 432k init) Calibrating delay using timer specific routine.. 6990.20 BogoMIPS (lpj=13980418)Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) Mount-cache hash table entries: 256 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 0/0 -> Node 0 SMP alternatives: switching to UP code Freeing SMP alternatives: 32k freed ACPI: Core revision 20070126 CPU0: QEMU Virtual CPU version 0.9.1 stepping 03 Using local APIC timer interrupts. Detected 62.505 MHz APIC timer. Brought up 1 CPUs Total of 1 processors activated (6990.20 BogoMIPS). net_namespace: 568 bytes NET: Registered protocol family 16 BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 IP: [] __dequeue_entity+0x2e/0x68 PGD 0 Oops: 0000 [1] SMP CPU 0 Modules linked in: Pid: 11, comm: khelper Not tainted 2.6.25-05096-gb1721d0-dirty #1 RIP: 0010:[] [] __dequeue_entity+0x2e/0x68 RSP: 0000:ffff81001f91ddd0 EFLAGS: 00000006 RAX: 0000000000000000 RBX: ffff81000100a460 RCX: 000000000405dd72 RDX: 0000000000000000 RSI: ffff810001005900 RDI: ffff810001005910 RBP: ffff81001f91ddf0 R08: ffff81000100a460 R09: ffff81000100a488 R10: 0000000000000001 R11: 0000000000000000 R12: ffff810001005910 R13: ffff810001005900 R14: ffffffff807e71c0 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffffffff80779000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000040 CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000 Process khelper (pid: 11, threadinfo ffff81001f91c000, task ffff81001f916bf0) Stack: ffff81001f91ddf0 ffff810001005900 ffff81000100a460 ffff81001f916be0 ffff81001f91de10 ffffffff802251de ffff81000100a460 ffff810001005900 ffff81001f91de30 ffffffff80225277 ffff81000100a400 ffff81001f907710 Call Trace: [] set_next_entity+0x18/0x3a [] pick_next_task_fair+0x48/0x5f [] schedule+0x346/0x572 [] do_exit+0x615/0x619 [] ? ____call_usermodehelper+0x123/0x124 [] ? schedule_tail+0x28/0x5d [] ? child_rip+0xa/0x12 [] ? ____call_usermodehelper+0x0/0x124 [] ? child_rip+0x0/0x12 Code: e5 41 55 49 89 f5 41 54 4c 8d 66 10 53 48 89 fb 48 83 ec 08 4c 39 67 30 75 2a 4c 89 e7 e8 0b b0 12 00 47 85 c0 48 89 43 30 74 19 <48> 8b 40 40 48 8b 4b 20 48 89 c2 48 29 ca 48 85 d2 48 0f 4e c1 RIP [] __dequeue_entity+0x2e/0x68 RSP CR2: 0000000000000040 ---[ end trace ca143223eefdc828 ]--- Fixing recursive fault but reboot is needed! <<<<<<<<< Have not investigated the crash, am just reporting it. Thanks, Dimitri