Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031009AbbD1Vgn (ORCPT ); Tue, 28 Apr 2015 17:36:43 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:33619 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030711AbbD1Vgj convert rfc822-to-8bit (ORCPT ); Tue, 28 Apr 2015 17:36:39 -0400 Date: Tue, 28 Apr 2015 23:37:01 +0200 From: Frans Klaver To: Huang Ying Cc: Brian Norris , LKML , LKP ML Subject: Re: [LKP] [mtd] 6b44d910ae7: WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:3547 check_flags+0xae/0x17b() Message-ID: <20150428213700.GA10945@bugger.home> References: <1429162034.6726.688.camel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: <1429162034.6726.688.camel@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 10171 Lines: 154 On Thu, Apr 16, 2015 at 01:27:14PM +0800, Huang Ying wrote: > FYI, we noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > commit 6b44d910ae7de5316fcf1fc828ff4a8d48cac5e2 ("mtd: core: set some defaults when dev.parent is set") > > > [ 5.566033] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.566033] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.567490] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.567490] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.568935] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.568935] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.570362] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.570362] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.571786] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.571786] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.573195] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.573195] [nandsim] warning: read_byte: unexpected data output cycle, state is STATE_READY return 0x0 > [ 5.574628] nand: device found, Manufacturer ID: 0x98, Chip ID: 0x39 > [ 5.574628] nand: device found, Manufacturer ID: 0x98, Chip ID: 0x39 > [ 5.575662] nand: Toshiba NAND 128MiB 1,8V 8-bit > [ 5.575662] nand: Toshiba NAND 128MiB 1,8V 8-bit > [ 5.576417] nand: 128 MiB, SLC, erase size: 16 KiB, page size: 512, OOB size: 16 > [ 5.576417] nand: 128 MiB, SLC, erase size: 16 KiB, page size: 512, OOB size: 16 > [ 5.577576] flash size: 128 MiB > [ 5.577576] flash size: 128 MiB > [ 5.578060] page size: 512 bytes > [ 5.578060] page size: 512 bytes > [ 5.578556] OOB area size: 16 bytes > [ 5.578556] OOB area size: 16 bytes > [ 5.579085] sector size: 16 KiB > [ 5.579085] sector size: 16 KiB > [ 5.579568] pages number: 262144 > [ 5.579568] pages number: 262144 > [ 5.580114] pages per sector: 32 > [ 5.580114] pages per sector: 32 > [ 5.580659] bus width: 8 > [ 5.580659] bus width: 8 > [ 5.581067] bits in sector size: 14 > [ 5.581067] bits in sector size: 14 > [ 5.581605] bits in page size: 9 > [ 5.581605] bits in page size: 9 > [ 5.582102] bits in OOB size: 4 > [ 5.582102] bits in OOB size: 4 > [ 5.582593] flash size with OOB: 135168 KiB > [ 5.582593] flash size with OOB: 135168 KiB > [ 5.583235] page address bytes: 4 > [ 5.583235] page address bytes: 4 > [ 5.583749] sector address bytes: 3 > [ 5.583749] sector address bytes: 3 > [ 5.584332] options: 0x42 > [ 5.584332] options: 0x42 > [ 5.586063] Scanning device for bad blocks > [ 5.586063] Scanning device for bad blocks > [ 5.609792] ftl_cs: FTL header not found. > [ 5.609792] ftl_cs: FTL header not found. > [ 5.612150] Creating 1 MTD partitions on "NAND 128MiB 1,8V 8-bit": > [ 5.612150] Creating 1 MTD partitions on "NAND 128MiB 1,8V 8-bit": > [ 5.613131] 0x000000000000-0x000008000000 : "NAND simulator partition 0" > [ 5.613131] 0x000000000000-0x000008000000 : "NAND simulator partition 0" > [ 5.614496] BUG: unable to handle kernel > [ 5.614496] BUG: unable to handle kernel NULL pointer dereferenceNULL pointer dereference at 00000008 > at 00000008 > [ 5.615637] IP: > [ 5.615637] IP: [<818c8620>] add_mtd_device+0x194/0x313 > [<818c8620>] add_mtd_device+0x194/0x313 > [ 5.616041] *pde = 00000000 > [ 5.616041] *pde = 00000000 > > [ 5.616041] Oops: 0000 [#1] > [ 5.616041] Oops: 0000 [#1] DEBUG_PAGEALLOC DEBUG_PAGEALLOC > > [ 5.616041] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.0.0-08945-gcb973ec #3 > [ 5.616041] CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.0.0-08945-gcb973ec #3 > [ 5.616041] task: 94680000 ti: 94688000 task.ti: 94688000 > [ 5.616041] task: 94680000 ti: 94688000 task.ti: 94688000 > [ 5.616041] EIP: 0060:[<818c8620>] EFLAGS: 00010202 CPU: 0 > [ 5.616041] EIP: 0060:[<818c8620>] EFLAGS: 00010202 CPU: 0 > [ 5.616041] EIP is at add_mtd_device+0x194/0x313 > [ 5.616041] EIP is at add_mtd_device+0x194/0x313 > [ 5.616041] EAX: 8bc100f0 EBX: 00000001 ECX: 00000001 EDX: 00000000 > [ 5.616041] EAX: 8bc100f0 EBX: 00000001 ECX: 00000001 EDX: 00000000 > [ 5.616041] ESI: 8caf9c20 EDI: 00000001 EBP: 94689ea8 ESP: 94689e98 > [ 5.616041] ESI: 8caf9c20 EDI: 00000001 EBP: 94689ea8 ESP: 94689e98 > [ 5.616041] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 > [ 5.616041] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 > [ 5.616041] CR0: 80050033 CR2: 00000008 CR3: 027cf000 CR4: 00040690 > [ 5.616041] CR0: 80050033 CR2: 00000008 CR3: 027cf000 CR4: 00040690 > [ 5.616041] Stack: > [ 5.616041] Stack: > [ 5.616041] 00000000 > [ 5.616041] 00000000 00000000 00000000 8caf9c20 8caf9c20 00000000 00000000 94689ecc 94689ecc 818cc564 818cc564 00cabab3 00cabab3 00000001 00000001 > > [ 5.616041] 8bc10000 > [ 5.616041] 8bc10000 8c3eb820 8c3eb820 00000001 00000001 8bc10000 8bc10000 8c3eb820 8c3eb820 94689ee4 94689ee4 818c888c 818c888c 8c3eb820 8c3eb820 > > [ 5.616041] 00000000 > [ 5.616041] 00000000 8bc10000 8bc10000 8bc10000 8bc10000 94689f24 94689f24 82772ced 82772ced 8bc1066c 8bc1066c 00000001 00000001 00000000 00000000 > > [ 5.616041] Call Trace: > [ 5.616041] Call Trace: > [ 5.616041] [<818cc564>] add_mtd_partitions+0xc2/0xef > [ 5.616041] [<818cc564>] add_mtd_partitions+0xc2/0xef > [ 5.616041] [<818c888c>] mtd_device_parse_register+0xed/0x16f > [ 5.616041] [<818c888c>] mtd_device_parse_register+0xed/0x16f > [ 5.616041] [<82772ced>] ns_init_module+0x1384/0x13fc > [ 5.616041] [<82772ced>] ns_init_module+0x1384/0x13fc > [ 5.616041] [<82771969>] ? probe_docg4+0x626/0x626 > [ 5.616041] [<82771969>] ? probe_docg4+0x626/0x626 > [ 5.616041] [<8271411c>] do_one_initcall+0x128/0x278 > [ 5.616041] [<8271411c>] do_one_initcall+0x128/0x278 > [ 5.616041] [<816610d6>] ? strlen+0x9/0x1c > [ 5.616041] [<816610d6>] ? strlen+0x9/0x1c > [ 5.616041] [<82713500>] ? do_early_param+0x92/0xac > [ 5.616041] [<82713500>] ? do_early_param+0x92/0xac > [ 5.616041] [<8105f0be>] ? parse_args+0x367/0x45f > [ 5.616041] [<8105f0be>] ? parse_args+0x367/0x45f > [ 5.616041] [<827144e4>] kernel_init_freeable+0x278/0x33d > [ 5.616041] [<827144e4>] kernel_init_freeable+0x278/0x33d > [ 5.616041] [<81c98a6e>] kernel_init+0xe/0x139 > [ 5.616041] [<81c98a6e>] kernel_init+0xe/0x139 > [ 5.616041] [<81cb0240>] ret_from_kernel_thread+0x20/0x30 > [ 5.616041] [<81cb0240>] ret_from_kernel_thread+0x20/0x30 > [ 5.616041] [<81c98a60>] ? rest_init+0x131/0x131 > [ 5.616041] [<81c98a60>] ? rest_init+0x131/0x131 > [ 5.616041] Code: > [ 5.616041] Code: d8 d8 74 74 62 62 82 82 84 84 c9 c9 74 74 65 65 83 83 be be ec ec 00 00 00 00 00 00 00 00 0f 0f 94 94 c1 c1 0f 0f b6 b6 f9 f9 8b 8b 14 14 bd bd c4 c4 74 74 62 62 82 82 42 42 89 89 14 14 bd bd c4 c4 74 74 62 62 82 82 84 84 c9 c9 74 74 0c 0c 8b 8b 50 50 7c 7c <8b> <8b> 52 52 08 08 89 89 96 96 ec ec 00 00 00 00 00 00 83 83 7e 7e 38 38 00 00 0f 0f 94 94 c1 c1 0f 0f b6 b6 f9 f9 8b 8b 14 14 > > [ 5.616041] EIP: [<818c8620>] > [ 5.616041] EIP: [<818c8620>] add_mtd_device+0x194/0x313add_mtd_device+0x194/0x313 SS:ESP 0068:94689e98 > SS:ESP 0068:94689e98 > [ 5.616041] CR2: 0000000000000008 > [ 5.616041] CR2: 0000000000000008 > [ 5.616041] ---[ end trace 1ca0c76386d57ae6 ]--- > [ 5.616041] ---[ end trace 1ca0c76386d57ae6 ]--- > [ 5.616041] Kernel panic - not syncing: Fatal exception > [ 5.616041] Kernel panic - not syncing: Fatal exception > [ 5.616041] Kernel Offset: disabled > [ 5.616041] Kernel Offset: disabled > > Elapsed time: 10 > qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -kernel /kernel/i386-randconfig-nexs0-04131730+CONFIG_DEBUG_INFO/cb973eca7f9b50e81a5544e4e91e6bf516e10322/vmlinuz-4.0.0-08945-gcb973ec -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-vp-quantal-i386-33/rand_boot-1-quantal-core-i386.cgz-i386-randconfig-nexs0-04131730+CONFIG_DEBUG_INFO-cb973eca7f9b50e81a5544e4e91e6bf516e10322-1-20150416-99016-oo4h64.yaml ARCH=i386 kconfig=i386-randconfig-nexs0-04131730+CONFIG_DEBUG_INFO branch=next/master commit=cb973eca7f9b50e81a5544e4e91e6bf516e10322 BOOT_IMAGE=/kernel/i386-randconfig-nexs0-04131730+CONFIG_DEBUG_INFO/cb973eca7f9b50e81a5544e4e91e6bf516e10322/vmlinuz-4.0.0-08945-gcb973ec RESULT_ROOT=/result/vm-vp-quantal-i386/boot/1/quantal-core-i386.cgz/i386-randconfig-nexs0-04131730+CONFIG_DEBUG_INFO/cb973eca7f9b50e81a5544e4e91e6bf516e10322/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 rd.udev.log-priority=err systemd.log_target=journal systemd.log_level=warning debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-vp-quantal-i386-33::dhcp drbd.minor_count=8' -initrd /fs/sdh1/initrd-vm-vp-quantal-i386-33 -m 360 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-vm-vp-quantal-i386-33 -serial file:/dev/shm/kboot/serial-vm-vp-quantal-i386-33 -daemonize -display none -monitor null I can't seem to reproduce this in qemu. Is there a way to get the same setup you have so I can investigate? Thanks, Frans -- 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/