From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul E. McKenney" Subject: Re: [2.6.36-rc1] List corruption when using initrd. Date: Fri, 20 Aug 2010 12:14:54 -0700 Message-ID: <20100820191454.GC2447@linux.vnet.ibm.com> References: <201008170517.o7H5HbCT002910@www262.sakura.ne.jp> Reply-To: paulmck@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org To: Tetsuo Handa Return-path: Received: from e6.ny.us.ibm.com ([32.97.182.146]:48100 "EHLO e6.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752910Ab0HTTO4 (ORCPT ); Fri, 20 Aug 2010 15:14:56 -0400 Content-Disposition: inline In-Reply-To: <201008170517.o7H5HbCT002910@www262.sakura.ne.jp> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Tue, Aug 17, 2010 at 02:17:37PM +0900, Tetsuo Handa wrote: > Hello. > > I get list_add corruption message when booting with initrd on Debian Sarge. > Config is at http://I-love.SAKURA.ne.jp/tmp/config-2.6.36-rc1-2 . In case it helps... If you put a loop in a list that does not include the list header, then the usual list_for_each_entry() loops can be expected to give you RCU CPU stall warnings. Thanx, Paul > [ 7.140845] VFS: Mounted root (cramfs filesystem) readonly on device 1:0. > [ 7.192635] mount used greatest stack depth: 2004 bytes left > [ 7.212497] linuxrc used greatest stack depth: 1572 bytes left > [ 7.214451] debug: unmapping init memory c158d000..c1751000 > [ 7.218958] Write protecting the kernel text: 3648k > [ 7.220230] Write protecting the kernel read-only data: 1700k > [ 7.222770] ------------[ cut here ]------------ > [ 7.223823] WARNING: at fs/inode.c:692 unlock_new_inode+0x78/0xc0() > [ 7.225249] Hardware name: VMware Virtual Platform > [ 7.228818] Modules linked in: > [ 7.229668] Pid: 1, comm: swapper Not tainted 2.6.36-rc1 #1 > [ 7.230963] Call Trace: > [ 7.231535] [] ? printk+0x18/0x20 > [ 7.232478] [] ? unlock_new_inode+0x78/0xc0 > [ 7.233668] [] warn_slowpath_common+0x7c/0xa0 > [ 7.234882] [] ? unlock_new_inode+0x78/0xc0 > [ 7.237936] [] warn_slowpath_null+0x1d/0x40 > [ 7.239257] [] unlock_new_inode+0x78/0xc0 > [ 7.240411] [] ? iget_locked+0x2e/0x50 > [ 7.241590] [] get_cramfs_inode+0x49/0x80 > [ 7.242731] [] cramfs_lookup+0x196/0x1c0 > [ 7.245605] [] ? d_lookup+0x26/0x50 > [ 7.246633] [] do_lookup+0x137/0x1b0 > [ 7.247717] [] do_last+0x67/0x450 > [ 7.248695] [] do_filp_open+0x1ed/0x500 > [ 7.249804] [] ? __get_user_pages+0xe5/0x2d0 > [ 7.250996] [] ? get_user_pages+0x52/0x60 > [ 7.252087] [] ? _copy_from_user+0x3c/0x70 > [ 7.253266] [] ? put_arg_page+0x8/0x10 > [ 7.256494] [] ? copy_strings+0x194/0x1b0 > [ 7.257644] [] open_exec+0x30/0xe0 > [ 7.258665] [] load_script+0x1c2/0x220 > [ 7.259757] [] ? trace_hardirqs_off_caller+0xf0/0x110 > [ 7.261126] [] ? local_clock+0x3b/0x60 > [ 7.262261] [] ? lock_release_holdtime+0x73/0xb0 > [ 7.265183] [] ? search_binary_handler+0xa6/0x260 > [ 7.266484] [] ? __lock_release+0x47/0x70 > [ 7.267607] [] ? search_binary_handler+0xa6/0x260 > [ 7.268887] [] ? load_script+0x0/0x220 > [ 7.270005] [] ? load_script+0x0/0x220 > [ 7.271092] [] search_binary_handler+0xad/0x260 > [ 7.272329] [] do_execve+0x16a/0x230 > [ 7.273397] [] ? getname+0x38/0x80 > [ 7.274410] [] sys_execve+0x42/0x60 > [ 7.277201] [] ptregs_execve+0x13/0x18 > [ 7.278284] [] ? syscall_call+0x7/0xb > [ 7.279342] [] ? kernel_execve+0x1f/0x30 > [ 7.280368] [] ? kernel_init+0x0/0xe0 > [ 7.281449] [] ? run_init_process+0x17/0x20 > [ 7.282658] [] ? init_post+0x4c/0xb0 > [ 7.285440] [] ? kernel_init+0xb5/0xe0 > [ 7.286524] [] ? kernel_thread_helper+0x6/0x1c > [ 7.287778] ---[ end trace 13753716ad16dd15 ]--- > [ 7.289098] ------------[ cut here ]------------ > [ 7.290163] WARNING: at fs/inode.c:692 unlock_new_inode+0x78/0xc0() > [ 7.291538] Hardware name: VMware Virtual Platform > [ 7.292631] Modules linked in: > [ 7.295550] Pid: 1, comm: swapper Tainted: G W 2.6.36-rc1 #1 > [ 7.296994] Call Trace: > [ 7.297632] [] ? printk+0x18/0x20 > [ 7.298620] [] ? unlock_new_inode+0x78/0xc0 > [ 7.299777] [] warn_slowpath_common+0x7c/0xa0 > [ 7.300984] [] ? unlock_new_inode+0x78/0xc0 > [ 7.302191] [] warn_slowpath_null+0x1d/0x40 > [ 7.305155] [] unlock_new_inode+0x78/0xc0 > [ 7.306324] [] ? iget_locked+0x2e/0x50 > [ 7.307424] [] get_cramfs_inode+0x49/0x80 > [ 7.308563] [] cramfs_lookup+0x196/0x1c0 > [ 7.309707] [] ? d_lookup+0x26/0x50 > [ 7.310741] [] do_lookup+0x137/0x1b0 > [ 7.311756] [] do_last+0x67/0x450 > [ 7.312743] [] ? page_getlink+0x49/0x70 > [ 7.316035] [] do_filp_open+0x385/0x500 > [ 7.317157] [] ? _copy_from_user+0x3c/0x70 > [ 7.318340] [] ? put_arg_page+0x8/0x10 > [ 7.319408] [] ? copy_strings+0x194/0x1b0 > [ 7.320541] [] open_exec+0x30/0xe0 > [ 7.321572] [] load_script+0x1c2/0x220 > [ 7.322653] [] ? trace_hardirqs_off_caller+0xf0/0x110 > [ 7.325736] [] ? local_clock+0x3b/0x60 > [ 7.326836] [] ? lock_release_holdtime+0x73/0xb0 > [ 7.328073] [] ? search_binary_handler+0xa6/0x260 > [ 7.329388] [] ? __lock_release+0x47/0x70 > [ 7.330531] [] ? search_binary_handler+0xa6/0x260 > [ 7.331766] [] ? load_script+0x0/0x220 > [ 7.332846] [] ? load_script+0x0/0x220 > [ 7.336067] [] search_binary_handler+0xad/0x260 > [ 7.337338] [] do_execve+0x16a/0x230 > [ 7.338402] [] ? getname+0x38/0x80 > [ 7.339409] [] sys_execve+0x42/0x60 > [ 7.340424] [] ptregs_execve+0x13/0x18 > [ 7.341511] [] ? syscall_call+0x7/0xb > [ 7.342575] [] ? kernel_execve+0x1f/0x30 > [ 7.345450] [] ? kernel_init+0x0/0xe0 > [ 7.346530] [] ? run_init_process+0x17/0x20 > [ 7.347699] [] ? init_post+0x4c/0xb0 > [ 7.348747] [] ? kernel_init+0xb5/0xe0 > [ 7.349914] [] ? kernel_thread_helper+0x6/0x1c > [ 7.351128] ---[ end trace 13753716ad16dd16 ]--- > [ 7.420484] pcnet32: pcnet32.c:v1.35 21.Apr.2008 tsbogend@alpha.franken.de > [ 7.422533] pcnet32 0000:02:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 > [ 7.424829] pcnet32: PCnet/PCI II 79C970A at 0x2000, 00:0c:29:9e:eb:32 assigned IRQ 18 > [ 7.430623] pcnet32: eth0: registered as PCnet/PCI II 79C970A > [ 7.435459] pcnet32: 1 cards_found > [ 7.484267] ------------[ cut here ]------------ > [ 7.485302] WARNING: at lib/list_debug.c:26 __list_add+0x8f/0xa0() > [ 7.486758] Hardware name: VMware Virtual Platform > [ 7.487865] list_add corruption. next->prev should be prev (c156b180), but was c1d67d08. (next=ded86fa0). > [ 7.492595] Modules linked in: pcnet32 > [ 7.493633] Pid: 1146, comm: mount Tainted: G W 2.6.36-rc1 #1 > [ 7.495188] Call Trace: > [ 7.495835] [] ? __list_add+0x20/0xa0 > [ 7.496873] [] ? __list_add+0x8f/0xa0 > [ 7.497940] [] warn_slowpath_common+0x7c/0xa0 > [ 7.499579] [] ? __list_add+0x8f/0xa0 > [ 7.500652] [] warn_slowpath_fmt+0x31/0x40 > [ 7.501809] [] __list_add+0x8f/0xa0 > [ 7.502929] [] __percpu_counter_init+0x75/0x90 > [ 7.504187] [] shmem_fill_super+0xb2/0x170 > [ 7.505233] [] ? sget+0x165/0x1f0 > [ 7.506620] [] ? set_anon_super+0x0/0xe0 > [ 7.507768] [] get_sb_nodev+0x50/0x80 > [ 7.508805] [] shmem_get_sb+0x1f/0x30 > [ 7.509863] [] ? shmem_fill_super+0x0/0x170 > [ 7.511087] [] vfs_kern_mount+0x71/0x190 > [ 7.512158] [] ? get_fs_type+0x30/0xa0 > [ 7.513175] [] do_kern_mount+0x37/0x90 > [ 7.514614] [] do_new_mount+0x57/0xa0 > [ 7.515712] [] do_mount+0x171/0x1b0 > [ 7.516699] [] sys_mount+0x6c/0xa0 > [ 7.517711] [] syscall_call+0x7/0xb > [ 7.518823] ---[ end trace 13753716ad16dd17 ]--- > [ 7.633900] ------------[ cut here ]------------ > [ 7.636734] WARNING: at lib/list_debug.c:26 __list_add+0x8f/0xa0() > [ 7.638118] Hardware name: VMware Virtual Platform > [ 7.639251] list_add corruption. next->prev should be prev (c156b180), but was (null). (next=de0a4fa0). > [ 7.641361] Modules linked in: pcnet32 > [ 7.642296] Pid: 1159, comm: mount Tainted: G W 2.6.36-rc1 #1 > [ 7.645946] Call Trace: > [ 7.646545] [] ? __list_add+0x20/0xa0 > [ 7.647631] [] ? __list_add+0x8f/0xa0 > [ 7.648702] [] warn_slowpath_common+0x7c/0xa0 > [ 7.649890] [] ? __list_add+0x8f/0xa0 > [ 7.650946] [] warn_slowpath_fmt+0x31/0x40 > [ 7.652114] [] __list_add+0x8f/0xa0 > [ 7.653142] [] __percpu_counter_init+0x75/0x90 > [ 7.656110] [] shmem_fill_super+0xb2/0x170 > [ 7.657266] [] ? sget+0x165/0x1f0 > [ 7.658226] [] ? set_anon_super+0x0/0xe0 > [ 7.659341] [] get_sb_nodev+0x50/0x80 > [ 7.660418] [] shmem_get_sb+0x1f/0x30 > [ 7.661477] [] ? shmem_fill_super+0x0/0x170 > [ 7.662611] [] vfs_kern_mount+0x71/0x190 > [ 7.665910] [] ? get_fs_type+0x30/0xa0 > [ 7.667024] [] do_kern_mount+0x37/0x90 > [ 7.668122] [] do_new_mount+0x57/0xa0 > [ 7.669210] [] do_mount+0x171/0x1b0 > [ 7.670347] [] sys_mount+0x6c/0xa0 > [ 7.671348] [] syscall_call+0x7/0xb > [ 7.672412] ---[ end trace 13753716ad16dd18 ]--- > [ 7.698493] EXT3-fs (sda1): recovery required on readonly filesystem > [ 7.700100] EXT3-fs (sda1): write access will be enabled during recovery > [ 7.702792] EXT3-fs: barriers not enabled > [ 7.764556] scsi0: Tagged Queuing now active for Target 0 > [ 7.768309] kjournald starting. Commit interval 5 seconds > [ 7.768887] EXT3-fs (sda1): recovery complete > [ 7.771507] EXT3-fs (sda1): mounted filesystem with ordered data mode > [ 7.773979] mount used greatest stack depth: 1168 bytes left > [ 10.792931] EXT3-fs (sda1): using internal journal > [ 15.186074] EXT3-fs: barriers not enabled > [ 15.219484] kjournald starting. Commit interval 5 seconds > [ 17.620661] EXT3-fs (sdb1): using internal journal > [ 17.622297] EXT3-fs (sdb1): mounted filesystem with ordered data mode > [ 25.617923] pcnet32 0000:02:00.0: eth0: link up > [ 34.921324] rcS used greatest stack depth: 988 bytes left > > Also, I get RCU stall at "Unmounting local filesystems..." for both > "booted with initrd" and "booted without initrd" cases. > Maybe list corruption is happening without using initrd. > > [ 465.144200] nfsd: last server has exited, flushing export cache > [ 487.051234] INFO: rcu_sched_state detected stall on CPU 0 (t=3750 jiffies) > [ 487.051234] sending NMI to all CPUs: > [ 487.051234] NMI backtrace for cpu 0 > [ 487.051234] Modules linked in: ipv6 pcnet32 > [ 487.051234] > [ 487.051234] Pid: 2793, comm: umount Tainted: G W 2.6.36-rc1 #1 440BX Desktop Reference Platform/VMware Virtual Platform > [ 487.051234] EIP: 0060:[] EFLAGS: 00000046 CPU: 0 > [ 487.051234] EIP is at default_send_IPI_mask_logical+0x99/0x130 > [ 487.051234] EAX: fffff000 EBX: 03000000 ECX: c101e7ce EDX: 00000c00 > [ 487.051234] ESI: 00000c00 EDI: 00000046 EBP: de2e5dc0 ESP: de2e5da4 > [ 487.051234] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > [ 487.051234] Process umount (pid: 2793, ti=de2e5000 task=dab86af0 task.ti=de2e5000) > [ 487.051234] Stack: > [ 487.051234] 00000000 de2e5dc0 c1066c23 00000002 00000000 c1555a00 c1555a00 de2e5dcc > [ 487.051234] <0> c101e9e1 00000000 de2e5ddc c101f242 c1494565 c1555a00 de2e5dfc c108b8ac > [ 487.051234] <0> c14a9600 c14a2fa4 00000000 00000ea6 00000000 c1555a00 de2e5e0c c108b92f > [ 487.051234] Call Trace: > [ 487.051234] [] ? lock_release_holdtime+0x73/0xb0 > [ 487.051234] [] ? default_send_IPI_all+0x71/0x80 > [ 487.051234] [] ? arch_trigger_all_cpu_backtrace+0x32/0x60 > [ 487.051234] [] ? print_cpu_stall+0x4c/0x90 > [ 487.051234] [] ? check_cpu_stall+0x3f/0x70 > [ 487.051234] [] ? __rcu_pending+0x20/0xe0 > [ 487.051234] [] ? rcu_pending+0x29/0x70 > [ 487.051234] [] ? rcu_check_callbacks+0x6c/0xa0 > [ 487.051234] [] ? update_process_times+0x38/0x60 > [ 487.051234] [] ? tick_periodic+0x25/0x80 > [ 487.051234] [] ? tick_handle_periodic+0x19/0x80 > [ 487.051234] [] ? mark_held_locks+0x42/0x80 > [ 487.051234] [] ? local_apic_timer_interrupt+0x53/0x60 > [ 487.051234] [] ? smp_apic_timer_interrupt+0x2e/0x40 > [ 487.051234] [] ? apic_timer_interrupt+0x2f/0x34 > [ 487.051234] [] ? list_del+0x39/0x110 > [ 487.051234] [] ? percpu_counter_destroy+0x24/0x40 > [ 487.051234] [] ? ext3_put_super+0x9c/0x1d0 > [ 487.051234] [] ? invalidate_inodes+0x5e/0x70 > [ 487.051234] [] ? generic_shutdown_super+0xc3/0xd0 > [ 487.051234] [] ? kill_block_super+0x25/0x40 > [ 487.051234] [] ? deactivate_locked_super+0x25/0x50 > [ 487.051234] [] ? deactivate_super+0x4f/0x60 > [ 487.051234] [] ? mntput_no_expire+0x5e/0xa0 > [ 487.051234] [] ? sys_umount+0x65/0xb0 > [ 487.051234] [] ? sys_oldumount+0x17/0x20 > [ 487.051234] [] ? syscall_call+0x7/0xb > [ 487.051234] Code: f6 c4 10 75 ed c1 e3 18 89 9a 10 c3 ff ff 8b 55 f0 a1 4c 1a 55 c1 09 f2 81 ce 00 04 00 00 83 7d f0 02 0f 44 d6 89 90 00 c3 ff ff <89> f8 c1 e8 09 83 f0 01 a8 01 74 0f 57 9d e8 d4 b7 04 00 83 c4 > [ 487.051234] Call Trace: > [ 487.051234] [] ? lock_release_holdtime+0x73/0xb0 > [ 487.051234] [] default_send_IPI_all+0x71/0x80 > [ 487.051234] [] arch_trigger_all_cpu_backtrace+0x32/0x60 > [ 487.051234] [] print_cpu_stall+0x4c/0x90 > [ 487.051234] [] check_cpu_stall+0x3f/0x70 > [ 487.051234] [] __rcu_pending+0x20/0xe0 > [ 487.051234] [] rcu_pending+0x29/0x70 > [ 487.051234] [] rcu_check_callbacks+0x6c/0xa0 > [ 487.051234] [] update_process_times+0x38/0x60 > [ 487.051234] [] tick_periodic+0x25/0x80 > [ 487.051234] [] tick_handle_periodic+0x19/0x80 > [ 487.051234] [] ? mark_held_locks+0x42/0x80 > [ 487.051234] [] local_apic_timer_interrupt+0x53/0x60 > [ 487.051234] [] smp_apic_timer_interrupt+0x2e/0x40 > [ 487.051234] [] apic_timer_interrupt+0x2f/0x34 > [ 487.051234] [] ? list_del+0x39/0x110 > [ 487.051234] [] percpu_counter_destroy+0x24/0x40 > [ 487.051234] [] ext3_put_super+0x9c/0x1d0 > [ 487.051234] [] ? invalidate_inodes+0x5e/0x70 > [ 487.051234] [] generic_shutdown_super+0xc3/0xd0 > [ 487.051234] [] kill_block_super+0x25/0x40 > [ 487.051234] [] deactivate_locked_super+0x25/0x50 > [ 487.051234] [] deactivate_super+0x4f/0x60 > [ 487.051234] [] mntput_no_expire+0x5e/0xa0 > [ 487.051234] [] sys_umount+0x65/0xb0 > [ 487.051234] [] sys_oldumount+0x17/0x20 > [ 487.051234] [] syscall_call+0x7/0xb > [ 487.051234] Pid: 2793, comm: umount Tainted: G W 2.6.36-rc1 #1 > [ 487.051234] Call Trace: > [ 487.051234] [] ? show_regs+0x22/0x30 > [ 487.051234] [] nmi_watchdog_tick+0x159/0x1f0 > [ 487.051234] [] default_do_nmi+0x90/0x1b0 > [ 487.051234] [] do_nmi+0x79/0x90 > [ 487.051234] [] nmi_stack_correct+0x28/0x2d > [ 487.051234] [] ? default_send_IPI_mask_logical+0x2e/0x130 > [ 487.051234] [] ? default_send_IPI_mask_logical+0x99/0x130 > [ 487.051234] [] ? lock_release_holdtime+0x73/0xb0 > [ 487.051234] [] default_send_IPI_all+0x71/0x80 > [ 487.051234] [] arch_trigger_all_cpu_backtrace+0x32/0x60 > [ 487.051234] [] print_cpu_stall+0x4c/0x90 > [ 487.051234] [] check_cpu_stall+0x3f/0x70 > [ 487.051234] [] __rcu_pending+0x20/0xe0 > [ 487.051234] [] rcu_pending+0x29/0x70 > [ 487.051234] [] rcu_check_callbacks+0x6c/0xa0 > [ 487.051234] [] update_process_times+0x38/0x60 > [ 487.051234] [] tick_periodic+0x25/0x80 > [ 487.051234] [] tick_handle_periodic+0x19/0x80 > [ 487.051234] [] ? mark_held_locks+0x42/0x80 > [ 487.051234] [] local_apic_timer_interrupt+0x53/0x60 > [ 487.051234] [] smp_apic_timer_interrupt+0x2e/0x40 > [ 487.051234] [] apic_timer_interrupt+0x2f/0x34 > [ 487.051234] [] ? list_del+0x39/0x110 > [ 487.051234] [] percpu_counter_destroy+0x24/0x40 > [ 487.051234] [] ext3_put_super+0x9c/0x1d0 > [ 487.051234] [] ? invalidate_inodes+0x5e/0x70 > [ 487.051234] [] generic_shutdown_super+0xc3/0xd0 > [ 487.051234] [] kill_block_super+0x25/0x40 > [ 487.051234] [] deactivate_locked_super+0x25/0x50 > [ 487.051234] [] deactivate_super+0x4f/0x60 > [ 487.051234] [] mntput_no_expire+0x5e/0xa0 > [ 487.051234] [] sys_umount+0x65/0xb0 > [ 487.051234] [] sys_oldumount+0x17/0x20 > [ 487.051234] [] syscall_call+0x7/0xb > [ 487.042994] NMI backtrace for cpu 1 > [ 487.042994] Modules linked in: ipv6 pcnet32 > [ 487.042994] > [ 487.042994] Pid: 0, comm: kworker/0:0 Tainted: G W 2.6.36-rc1 #1 440BX Desktop Reference Platform/VMware Virtual Platform > [ 487.042994] EIP: 0060:[] EFLAGS: 00000202 CPU: 1 > [ 487.042994] EIP is at default_idle+0x34/0x60 > [ 487.042994] EAX: 00000002 EBX: 00000001 ECX: 00000001 EDX: 00000001 > [ 487.042994] ESI: 00000000 EDI: 00000000 EBP: df9f5f98 ESP: df9f5f98 > [ 487.042994] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 > [ 487.042994] Process kworker/0:0 (pid: 0, ti=df9f5000 task=dfa0a2b0 task.ti=df9f5000) > [ 487.042994] Stack: > [ 487.042994] df9f5fa8 c1001619 02010800 00000000 df9f5fb0 c1386a5a 00000000 00000000 > [ 487.042994] <0> 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 487.042994] <0> 000000d8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 487.042994] Call Trace: > [ 487.042994] [] ? cpu_idle+0x59/0xa0 > [ 487.042994] [] ? start_secondary+0xca/0x100 > [ 487.042994] Code: 85 d2 75 43 80 3d a5 ab 58 c1 00 74 3a 89 e0 25 00 f0 ff ff 83 60 0c fb 0f ae f0 8d 76 00 f6 40 08 08 75 15 e8 ce fb 05 00 fb f4 <89> e0 25 00 f0 ff ff 83 48 0c 04 90 5d c3 e8 b9 fb 05 00 fb eb > [ 487.042994] Call Trace: > [ 487.042994] [] cpu_idle+0x59/0xa0 > [ 487.042994] [] start_secondary+0xca/0x100 > [ 487.042994] Pid: 0, comm: kworker/0:0 Tainted: G W 2.6.36-rc1 #1 > [ 487.042994] Call Trace: > [ 487.042994] [] ? show_regs+0x22/0x30 > [ 487.042994] [] nmi_watchdog_tick+0x159/0x1f0 > [ 487.042994] [] default_do_nmi+0x90/0x1b0 > [ 487.042994] [] ? restore_all_notrace+0x0/0x18 > [ 487.042994] [] do_nmi+0x79/0x90 > [ 487.042994] [] nmi_stack_correct+0x28/0x2d > [ 487.042994] [] ? default_idle+0x34/0x60 > [ 487.042994] [] cpu_idle+0x59/0xa0 > [ 487.042994] [] start_secondary+0xca/0x100 > > Regards. > -- > 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/