From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Tim Sander" Subject: Re: [ANNOUNCE] 3.0.1-rt8 - Regression to 3.0-rt7 Date: Thu, 11 Aug 2011 17:36:20 +0200 Message-ID: <201108111736.20856.tim.sander@hbm.com> References: <1312580681.28695.44.camel@twins> <201108091713.19292.tim.sander@hbm.com> <1313059558.23660.73.camel@twins> Mime-Version: 1.0 Content-Type: text/Plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "linux-kernel" , "Thomas Gleixner" , "Paul E. McKenney" , "linux-rt-users" To: "Peter Zijlstra" Return-path: Received: from gateway.hbm.com ([213.157.30.2]:9489 "EHLO hbmntx5.hbm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751339Ab1HKPgi convert rfc822-to-8bit (ORCPT ); Thu, 11 Aug 2011 11:36:38 -0400 Content-class: urn:content-classes:message In-Reply-To: <1313059558.23660.73.camel@twins> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Hi Peter > > Right, so I wouldn't know where to start looking on this one. That'= s > > generic code exploding for some reason. How is that related to RTB = and > > what is RTB to begin with? Sorry, the question on the end slipped out of my screen and my attentio= n... It is CONFIG_PREEMPT_RTB=3Dy as you already figured out. > Ah, ok so clue came late and PREEMPT_RTB is basically a half-way hous= e > between PREEMPT and PREEMPT_RT (_FULL). It should build and boot but = its > not actually meant to be used by anybody but the foolhardly developer= =2E No, don't dissmiss this option. I am currently testing this stuff on an= =20 arm1136jfs with 533Mhz. The CONFIG_PREEMPT_RT _FULL with the softirqs i= s to slow on this machine to handle a 9.6khz interrupts. I think mainly beca= use=20 of the additional context switch caused by the softirqs. But going to CONFIG_PREEMPT_RTB we are right on the sweet spot for this= =20 machine. We observed worst case usermode latencies for 1.2khz and are=20 able to handle 9.6khz hardirq with reasonable cpu load. So the=20 CONFIG_PREEMPT_RTB is the right option for puny systems like arm1136. Annotation: i was interrupted while writing this mail, so the below par= t is outdated by other mails from you. (https://lkml.org/lkml/2011/8/11/1= 39) ***************** > Still no clue on how I wrecked things there though, maybe if I wake u= p > more.. I just thought that that it might be some changes in 3.0.1 compared to = 3.0 but i noticed that the rt8 patch also cleanly applys against 3.0 and i = tested this The butsplat looks very similar to my other bugreports sent today.=20 Starting kernel ... Uncompressing Linux... done, booting the kernel. drivers/rtc/hctosys.c: unable to open rtc device (rtc0) =46ATAL: Could not load /lib/modules/3.0.0-rt8-00001-gd5b0226/modules.d= ep: No such file or directory kernel BUG at mm/filemap.c:2043! Unable to handle kernel NULL pointer dereference at virtual address 000= 00000 pgd =3D c7a40000 [00000000] *pgd=3D87a3e831, *pte=3D00000000, *ppte=3D00000000 Internal error: Oops: 817 [#1] PREEMPT Modules linked in: CPU: 0 Not tainted (3.0.0-rt8-00001-gd5b0226 #160) PC is at __bug+0x24/0x30 LR is at vprintk+0x398/0x404 pc : [] lr : [] psr: 60000013 sp : c7a2dce8 ip : c7a2dc30 fp : c7a2dcf4 r10: c7a62de0 r9 : 00000000 r8 : 00000000 r7 : 00000000 r6 : 00000008 r5 : c04267e0 r4 : c7a2dd78 r3 : 00000000 r2 : 00000002 r1 : 00000000 r0 : 00000027 =46lags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 87a40008 DAC: 00000015 Process udevd (pid: 215, stack limit =3D 0xc7a2c268) Stack: (0xc7a2dce8 to 0xc7a2e000) dce0: c7a2dd14 c7a2dcf8 c0076ab4 c002cbd8 c7a2dd78 c7= a797a0 dd00: 00000008 c0252f00 c7a2dd74 c7a2dd18 c0076c34 c0076a7c 00000008 00= 000000 dd20: c7a2dd44 c7a2dd40 c7a2c000 00000000 00001000 00000000 00000000 00= 000000 dd40: c7a2dd74 c04267e0 c0041ccc 00000000 00000000 00000000 c7a62de0 c7= a2dd78 dd60: 00000000 00000000 c7a2ddac c7a2dd78 c0076d6c c0076b58 c7a2df10 00= 000001 dd80: 00000000 00000008 00000000 00000000 00000000 c7a62de0 c7a796f0 00= 000008 dda0: c7a2de3c c7a2ddb0 c0078f68 c0076d1c 00000000 00000000 c7a2ded0 00= 000008 ddc0: 00000000 c0035100 c7a2ddec c7a2ddd8 c0035100 c002b620 c7a797a0 c7= a2ded0 dde0: c7a2df10 c7a2de98 c008ecf4 c0035050 00000000 00000001 c7a2de24 c7= a6ade0 de00: 4007f000 00000000 c7a41000 00000008 c7a08860 00000000 c7a62de0 c7= a7970c de20: 00000000 c7a2de98 c7a2df10 00000001 c7a2de8c c7a2de40 c007902c c0= 078b0c de40: c002b614 00000001 91827364 c7a2de4c c7a2de4c c7a2de54 c7a2de54 00= 000000 de60: c7a2deb4 c7a62de0 c7a2de98 c7a2df70 c7a2df10 fffffdee c7a2c000 00= 000000 de80: c7a2df3c c7a2de90 c00a184c c0078fc0 00000000 00000000 c014dfec c0= 035050 dea0: 00000000 00000001 ffffffff c7a62de0 00000000 00000000 00000000 00= 000000 dec0: c7850c20 c005c3c4 00000000 00000000 00000000 00000000 00000007 40= 07f000 dee0: 00000008 c7a2dfb0 00000008 becf0378 c7a2dfac c7a2df00 c002420c c0= 02f114 df00: c00242b0 c002f114 c7a2df2c c7a2df18 4007f000 00000008 c7a08898 00= 000008 df20: c7a62de0 4007f000 c7a2df70 00000008 c7a2df6c c7a2df40 c00a1fa0 c0= 0a17b0 df40: c7a2c000 4007f000 00001000 c7a62de0 4007f000 00000000 00000000 00= 000008 df60: c7a2dfa4 c7a2df70 c00a2224 c00a1ef0 00000000 00000000 00000022 00= 000000 df80: ffffffff 00000008 000233d8 4007f000 00000004 c0029c24 00000000 c7= a2dfa8 dfa0: c0029aa0 c00a21ec 00000008 000233d8 0000000a 4007f000 00000008 00= 000000 dfc0: 00000008 000233d8 4007f000 00000004 00000008 00022344 000c42e8 00= 000001 dfe0: 00000000 becef6e8 40167e0c 401bb21c 60000010 0000000a 00000000 00= 000000 Backtrace:=20 [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 Code: e59f0010 e1a01003 eb0874b7 e3a03000 (e5833000)=20 ---[ end trace 849a9799d85b8278 ]--- note: udevd[215] exited with preempt_count 1 BUG: scheduling while atomic: udevd/215/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2c000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7850c20 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7a2dabc r3:00000001 [] (_cond_resched+0x0/0x48) from [] (unmap_page_ran= ge+0x1c4/0x1dc) [] (unmap_page_range+0x0/0x1dc) from [] (unmap_vmas= +0x80/0xb0) [] (unmap_vmas+0x0/0xb0) from [] (exit_mmap+0x12c/0= x290) [] (exit_mmap+0x0/0x290) from [] (mmput+0x3c/0xec) r7:c7a08894 r6:00000000 r5:00000000 r4:c7a08860 [] (mmput+0x0/0xec) from [] (exit_mm+0x150/0x160) r5:c7850c20 r4:c7a08860 [] (exit_mm+0x0/0x160) from [] (do_exit+0x1f8/0x2d8= ) r7:00000817 r6:00000001 r5:0000000b r4:c7850c20 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2dca0 r6:c7a08860 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7850c20 r5:c7a08860 r4:c7a2dca0 r3:c7a2dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2dca0 to 0xc7a2dce8) dca0: 00000027 00000000 00000002 00000000 c7a2dd78 c04267e0 00000008 00= 000000 dcc0: 00000000 00000000 c7a62de0 c7a2dcf4 c7a2dc30 c7a2dce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000008 r5:c7a2dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 BUG: scheduling while atomic: udevd/215/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2c000 r5:c0304b38 r4:00000000 r3:20000013 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7850c20 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7818d40 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c7850c20 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2dca0 r6:c7a08860 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7850c20 r5:c7a08860 r4:c7a2dca0 r3:c7a2dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2dca0 to 0xc7a2dce8) dca0: 00000027 00000000 00000002 00000000 c7a2dd78 c04267e0 00000008 00= 000000 dcc0: 00000000 00000000 c7a62de0 c7a2dcf4 c7a2dc30 c7a2dce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000008 r5:c7a2dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 BUG: scheduling while atomic: udevd/215/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2c000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7850c20 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7818d40 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c7850c20 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2dca0 r6:c7a08860 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7850c20 r5:c7a08860 r4:c7a2dca0 r3:c7a2dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2dca0 to 0xc7a2dce8) dca0: 00000027 00000000 00000002 00000000 c7a2dd78 c04267e0 00000008 00= 000000 dcc0: 00000000 00000000 c7a62de0 c7a2dcf4 c7a2dc30 c7a2dce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000008 r5:c7a2dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 tim login: BUG: scheduling while atomic: udevd/215/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2c000 r5:c0304b38 r4:00000000 r3:20000013 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7850c20 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7818d40 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c7850c20 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2dca0 r6:c7a08860 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7850c20 r5:c7a08860 r4:c7a2dca0 r3:c7a2dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2dca0 to 0xc7a2dce8) dca0: 00000027 00000000 00000002 00000000 c7a2dd78 c04267e0 00000008 00= 000000 dcc0: 00000000 00000000 c7a62de0 c7a2dcf4 c7a2dc30 c7a2dce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000008 r5:c7a2dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 kernel BUG at mm/filemap.c:2043! Unable to handle kernel NULL pointer dereference at virtual address 000= 00000 pgd =3D c7a84000 [00000000] *pgd=3D87a6c831, *pte=3D00000000, *ppte=3D00000000 Internal error: Oops: 817 [#2] PREEMPT Modules linked in: CPU: 0 Tainted: G D (3.0.0-rt8-00001-gd5b0226 #160) PC is at __bug+0x24/0x30 LR is at vprintk+0x3b4/0x404 pc : [] lr : [] psr: 20000013 sp : c7a2bce8 ip : c7a2bc30 fp : c7a2bcf4 r10: c7a62960 r9 : 00000000 r8 : 00000000 r7 : 00000000 r6 : 00000041 r5 : c0426da0 r4 : c7a2bd78 r3 : 00000000 r2 : 00000002 r1 : 00000001 r0 : 00000027 =46lags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 87a84008 DAC: 00000015 Process syslogd (pid: 226, stack limit =3D 0xc7a2a268) Stack: (0xc7a2bce8 to 0xc7a2c000) bce0: c7a2bd14 c7a2bcf8 c0076ab4 c002cbd8 c7a2bd78 c7= a79490 bd00: 00000041 c0252f00 c7a2bd74 c7a2bd18 c0076c34 c0076a7c 00000041 00= 000000 bd20: c7a2bd44 c7a2bd40 c7a2a000 00000000 00001000 00000000 00000000 00= 000000 bd40: c7a2bd74 c0426da0 c0041ccc 00000000 00000000 00000000 c7a62960 c7= a2bd78 bd60: 00000000 00000000 c7a2bdac c7a2bd78 c0076d6c c0076b58 c7a2bf10 00= 000001 bd80: 00000000 00000041 00000000 00000000 00000000 c7a62960 c7a793e0 00= 000041 bda0: c7a2be3c c7a2bdb0 c0078f68 c0076d1c 00000000 00000000 c7a2bed0 00= 000041 bdc0: 00000000 c0057490 ffffffff c7a2a000 c7a2be2c c7a2bde0 c7a79490 c7= a2bed0 bde0: c7a2bf10 c7a2be98 00000000 4017c000 00000000 00000001 4017c000 c0= 427180 be00: c7a2be2c c7a39860 000000b7 00000041 c7a85000 00000000 c7a62960 c7= a793fc be20: 00000000 c7a2be98 c7a2bf10 00000001 c7a2be8c c7a2be40 c007902c c0= 078b0c be40: c002cbb0 c002b5f0 91827364 c7a2be4c c7a2be4c c7a2be54 c7a2be54 00= 000000 be60: c002b650 c7a62960 c7a2be98 c7a2bf70 c7a2bf10 fffffdee c7a2a000 00= 000000 be80: c7a2bf3c c7a2be90 c00a184c c0078fc0 00000000 00000000 c7a2bebc c7= a2bea8 bea0: 00000000 00000001 ffffffff c7a62960 00000000 00000000 00000000 00= 000000 bec0: c78673e0 c7a2bed0 00000000 00000000 00000000 00000000 00000000 00= 000007 bee0: 00000041 4017c200 00000041 00000041 00000000 0006c6f0 c7a2bfac c7= a2bf08 bf00: c00242b0 c002f114 00000005 01312d03 0006c458 00000041 00000079 00= 000041 bf20: c7a62960 0006c458 c7a2bf70 00000041 c7a2bf6c c7a2bf40 c00a1fa0 c0= 0a17b0 bf40: 00000079 00000000 00000010 c7a62960 0006c458 00000000 00000000 00= 000041 bf60: c7a2bfa4 c7a2bf70 c00a2224 c00a1ef0 00000000 00000000 00000005 00= 000000 bf80: 00001000 0006b89c 00000041 0006c458 00000004 c0029c24 00000000 c7= a2bfa8 bfa0: c0029aa0 c00a21ec 0006b89c 00000041 00000004 0006c458 00000041 00= 032000 bfc0: 0006b89c 00000041 0006c458 00000004 00000041 00000000 0006c6f0 be= e4cbdc bfe0: 00000004 bee4cb30 0000faa4 4017c21c 60000010 00000004 c4dc657c c6= c88810 Backtrace:=20 [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000041 r5:c7a79490 r4:c7a2bd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000041 r7:c7a793e0 r6:c7a62960 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000041 r7:c7a2bf70 r6:0006c458 r5:c7a62960 r4:00000041 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000041 r7:00000000 r6:00000000 r5:0006c458 r4:c7a62960 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:0006c458 r5:00000041 r4:0006b89c Code: e59f0010 e1a01003 eb0874b7 e3a03000 (e5833000)=20 ---[ end trace 849a9799d85b8279 ]--- note: syslogd[226] exited with preempt_count 1 BUG: scheduling while atomic: syslogd/226/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2a000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c78673e0 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7a2babc r3:00000001 [] (_cond_resched+0x0/0x48) from [] (unmap_page_ran= ge+0x1c4/0x1dc) [] (unmap_page_range+0x0/0x1dc) from [] (unmap_vmas= +0x80/0xb0) [] (unmap_vmas+0x0/0xb0) from [] (exit_mmap+0x12c/0= x290) [] (exit_mmap+0x0/0x290) from [] (mmput+0x3c/0xec) r7:c7a08bd4 r6:00000000 r5:00000000 r4:c7a08ba0 [] (mmput+0x0/0xec) from [] (exit_mm+0x150/0x160) r5:c78673e0 r4:c7a08ba0 [] (exit_mm+0x0/0x160) from [] (do_exit+0x1f8/0x2d8= ) r7:00000817 r6:00000001 r5:0000000b r4:c78673e0 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2bca0 r6:c7a08ba0 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c78673e0 r5:c7a08ba0 r4:c7a2bca0 r3:c7a2bca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2bca0 to 0xc7a2bce8) bca0: 00000027 00000001 00000002 00000000 c7a2bd78 c0426da0 00000041 00= 000000 bcc0: 00000000 00000000 c7a62960 c7a2bcf4 c7a2bc30 c7a2bce8 c003e304 c0= 02cbf0 bce0: 20000013 ffffffff r8:00000000 r7:00000000 r6:00000041 r5:c7a2bcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000041 r5:c7a79490 r4:c7a2bd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000041 r7:c7a793e0 r6:c7a62960 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000041 r7:c7a2bf70 r6:0006c458 r5:c7a62960 r4:00000041 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000041 r7:00000000 r6:00000000 r5:0006c458 r4:c7a62960 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:0006c458 r5:00000041 r4:0006b89c kernel BUG at mm/filemap.c:2043! Unable to handle kernel NULL pointer dereference at virtual address 000= 00000 pgd =3D c7a70000 [00000000] *pgd=3D87a27831, *pte=3D00000000, *ppte=3D00000000 Internal error: Oops: 817 [#3] PREEMPT Modules linked in: CPU: 0 Tainted: G D (3.0.0-rt8-00001-gd5b0226 #160) PC is at __bug+0x24/0x30 LR is at vprintk+0x398/0x404 pc : [] lr : [] psr: 60000013 sp : c7a77ce8 ip : c7a77c30 fp : c7a77cf4 r10: c7a97ca0 r9 : 00000000 r8 : 00000000 r7 : 00000000 r6 : 00000006 r5 : c0426d60 r4 : c7a77d78 r3 : 00000000 r2 : 00000002 r1 : 00000002 r0 : 00000027 =46lags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 87a70008 DAC: 00000015 Process ifup (pid: 222, stack limit =3D 0xc7a76268) Stack: (0xc7a77ce8 to 0xc7a78000) 7ce0: c7a77d14 c7a77cf8 c0076ab4 c002cbd8 c7a77d78 c7= a79308 7d00: 00000006 c0252f00 c7a77d74 c7a77d18 c0076c34 c0076a7c 00000006 00= 000000 7d20: c7a77d44 c7a77d40 c7a76000 00000000 00001000 00000000 00000000 00= 000000 7d40: c7a77d74 c0426d60 c0041ccc 00000000 00000000 00000000 c7a97ca0 c7= a77d78 7d60: 00000000 00000000 c7a77dac c7a77d78 c0076d6c c0076b58 c7a77f10 00= 000001 7d80: 00000000 00000006 00000000 00000000 00000000 c7a97ca0 c7a79258 00= 000006 7da0: c7a77e3c c7a77db0 c0078f68 c0076d1c 00000000 00000000 c7a77ed0 00= 000006 7dc0: 00000000 c0035100 c7a77dec c7a77dd8 c0035100 c002b620 c7a79308 c7= a77ed0 7de0: c7a77f10 c7a77e98 c008ecf4 c0035050 00000000 00000001 c7a77e24 c7= a39650 7e00: 40092000 00000000 c7a71000 00000006 c7a081e0 00000000 c7a97ca0 c7= a79274 7e20: 00000000 c7a77e98 c7a77f10 00000001 c7a77e8c c7a77e40 c007902c c0= 078b0c 7e40: c002b614 00000001 91827364 c7a77e4c c7a77e4c c7a77e54 c7a77e54 00= 000000 7e60: c7a77eb4 c7a97ca0 c7a77e98 c7a77f70 c7a77f10 fffffdee c7a76000 00= 000000 7e80: c7a77f3c c7a77e90 c00a184c c0078fc0 00000000 00000000 c014dfec c0= 035050 7ea0: 00000000 00000001 ffffffff c7a97ca0 00000000 00000000 00000000 00= 000000 7ec0: c7899720 c005c3c4 00000000 00000000 00000000 00000000 00000007 40= 092000 7ee0: 00000006 c7a77fb0 00000006 0006c0d8 c7a77fac c7a77f00 c002420c c0= 02f114 7f00: c00242b0 c002f114 c7a77f2c c7a77f18 40092000 00000006 c7a08218 00= 000006 7f20: c7a97ca0 40092000 c7a77f70 00000006 c7a77f6c c7a77f40 c00a1fa0 c0= 0a17b0 7f40: c7a76000 40092000 00001000 c7a97ca0 40092000 00000000 00000000 00= 000006 7f60: c7a77fa4 c7a77f70 c00a2224 c00a1ef0 00000000 00000000 00000022 00= 000000 7f80: ffffffff 00000006 0006c4c8 40092000 00000004 c0029c24 00000000 c7= a77fa8 7fa0: c0029aa0 c00a21ec 00000006 0006c4c8 00000003 40092000 00000006 00= 000000 7fc0: 00000006 0006c4c8 40092000 00000004 00000006 00000000 000c42e8 00= 000001 7fe0: 00000000 bebf9c10 40194e0c 401e821c 60000010 00000003 87ffe821 87= ffec21 Backtrace:=20 [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000006 r5:c7a79308 r4:c7a77d78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000006 r7:c7a79258 r6:c7a97ca0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000006 r7:c7a77f70 r6:40092000 r5:c7a97ca0 r4:00000006 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000006 r7:00000000 r6:00000000 r5:40092000 r4:c7a97ca0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40092000 r5:0006c4c8 r4:00000006 Code: e59f0010 e1a01003 eb0874b7 e3a03000 (e5833000)=20 ---[ end trace 849a9799d85b827a ]--- note: ifup[222] exited with preempt_count 1 BUG: scheduling while atomic: ifup/222/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a76000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7899720 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7a77abc r3:00000001 [] (_cond_resched+0x0/0x48) from [] (unmap_page_ran= ge+0x1c4/0x1dc) [] (unmap_page_range+0x0/0x1dc) from [] (unmap_vmas= +0x80/0xb0) [] (unmap_vmas+0x0/0xb0) from [] (exit_mmap+0x12c/0= x290) [] (exit_mmap+0x0/0x290) from [] (mmput+0x3c/0xec) r7:c7a08214 r6:00000000 r5:00000000 r4:c7a081e0 [] (mmput+0x0/0xec) from [] (exit_mm+0x150/0x160) r5:c7899720 r4:c7a081e0 [] (exit_mm+0x0/0x160) from [] (do_exit+0x1f8/0x2d8= ) r7:00000817 r6:00000001 r5:0000000b r4:c7899720 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a77ca0 r6:c7a081e0 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7899720 r5:c7a081e0 r4:c7a77ca0 r3:c7a77ca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a77ca0 to 0xc7a77ce8) 7ca0: 00000027 00000002 00000002 00000000 c7a77d78 c0426d60 00000006 00= 000000 7cc0: 00000000 00000000 c7a97ca0 c7a77cf4 c7a77c30 c7a77ce8 c003e2e8 c0= 02cbf0 7ce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000006 r5:c7a77cd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000006 r5:c7a79308 r4:c7a77d78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000006 r7:c7a79258 r6:c7a97ca0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000006 r7:c7a77f70 r6:40092000 r5:c7a97ca0 r4:00000006 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000006 r7:00000000 r6:00000000 r5:40092000 r4:c7a97ca0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40092000 r5:0006c4c8 r4:00000006 BUG: scheduling while atomic: udevd/215/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2c000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7850c20 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7818d40 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c7850c20 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2dca0 r6:c7a08860 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7850c20 r5:c7a08860 r4:c7a2dca0 r3:c7a2dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2dca0 to 0xc7a2dce8) dca0: 00000027 00000000 00000002 00000000 c7a2dd78 c04267e0 00000008 00= 000000 dcc0: 00000000 00000000 c7a62de0 c7a2dcf4 c7a2dc30 c7a2dce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000008 r5:c7a2dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 BUG: scheduling while atomic: udevd/215/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a2c000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7850c20 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7818d40 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c7850c20 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a2dca0 r6:c7a08860 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7850c20 r5:c7a08860 r4:c7a2dca0 r3:c7a2dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a2dca0 to 0xc7a2dce8) dca0: 00000027 00000000 00000002 00000000 c7a2dd78 c04267e0 00000008 00= 000000 dcc0: 00000000 00000000 c7a62de0 c7a2dcf4 c7a2dc30 c7a2dce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000008 r5:c7a2dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000008 r5:c7a797a0 r4:c7a2dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000008 r7:c7a796f0 r6:c7a62de0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000008 r7:c7a2df70 r6:4007f000 r5:c7a62de0 r4:00000008 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000008 r7:00000000 r6:00000000 r5:4007f000 r4:c7a62de0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:4007f000 r5:000233d8 r4:00000008 init: udev main process (215) killed by SEGV signal init: udev main process ended, respawning kernel BUG at mm/filemap.c:2043! Unable to handle kernel NULL pointer dereference at virtual address 000= 00000 pgd =3D c7ab4000 [00000000] *pgd=3D87aa3831, *pte=3D00000000, *ppte=3D00000000 Internal error: Oops: 817 [#4] PREEMPT Modules linked in: CPU: 0 Tainted: G D (3.0.0-rt8-00001-gd5b0226 #160) PC is at __bug+0x24/0x30 LR is at vprintk+0x3b4/0x404 pc : [] lr : [] psr: 20000013 sp : c7a7dce8 ip : c7a7dc30 fp : c7a7dcf4 r10: c7a9d8c0 r9 : 00000000 r8 : 00000000 r7 : 00000000 r6 : 00001000 r5 : c0333980 r4 : c7a7dd78 r3 : 00000000 r2 : 00000002 r1 : 00000003 r0 : 00000027 =46lags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 87ab4008 DAC: 00000015 Process udevadm (pid: 238, stack limit =3D 0xc7a7c268) Stack: (0xc7a7dce8 to 0xc7a7e000) dce0: c7a7dd14 c7a7dcf8 c0076ab4 c002cbd8 c7a7dd78 c7= aa5f68 dd00: 00001000 c0252f00 c7a7dd74 c7a7dd18 c0076c34 c0076a7c 00001000 00= 000000 dd20: c7a7dd44 c7a7dd40 c7a7c000 00000000 00001000 00000000 00000000 00= 000000 dd40: c0035100 c0333980 00000001 00000000 00000000 00000000 c7a9d8c0 c7= a7dd78 dd60: 00000000 00000000 c7a7ddac c7a7dd78 c0076d6c c0076b58 c7a7df10 00= 000001 dd80: 00000000 00001000 00000000 00000000 00000000 c7a9d8c0 c7aa5eb8 00= 001000 dda0: c7a7de3c c7a7ddb0 c0078f68 c0076d1c 00000000 00000000 c7a7ded0 00= 001000 ddc0: 00000000 c0426920 c7a7de24 c7a7ddd8 c008e94c c007753c c7aa5f68 c7= a7ded0 dde0: c7a7df10 c7a7de98 00000000 bee2bb78 00000004 00000001 c7a7de18 00= 000001 de00: 00000000 00002000 c74041a0 00001000 c7a7dd28 00000000 c7a9d8c0 c7= aa5ed4 de20: 00000000 c7a7de98 c7a7df10 00000001 c7a7de8c c7a7de40 c007902c c0= 078b0c de40: 000000a0 c7a7df64 91827364 c7a7de4c c7a7de4c c7a7de54 c7a7de54 00= 000000 de60: bee2b88c c7a9d8c0 c7a7de98 c7a7df70 c7a7df10 fffffdee c7a7c000 00= 000000 de80: c7a7df3c c7a7de90 c00a184c c0078fc0 00000000 00000000 c014dfec c0= 035050 dea0: 00000000 00000001 ffffffff c7a9d8c0 00000000 00000000 00000000 00= 000000 dec0: c7838640 c005c3c4 00000000 00000000 00000000 00000000 00000007 40= 211080 dee0: 00001000 c7a7dfb0 00001000 00001f60 c7a7dfac c7a7df00 c002420c c0= 02f114 df00: c00242b0 c002f114 c01d95dc c0042b78 40018000 00001000 c7a7de18 00= 001000 df20: c7a9d8c0 40018000 c7a7df70 00001000 c7a7df6c c7a7df40 c00a1fa0 c0= 0a17b0 df40: c7a7df80 0000004e c0029c24 c7a9d8c0 40018000 00000000 00000000 00= 001000 df60: c7a7dfa4 c7a7df70 c00a2224 c00a1ef0 00000000 00000000 bee2b8a0 00= 000000 df80: 00000007 00001000 4022b5c8 40018000 00000004 c0029c24 00000000 c7= a7dfa8 dfa0: c0029aa0 c00a21ec 00001000 4022b5c8 00000001 40018000 00001000 00= 000000 dfc0: 00001000 4022b5c8 40018000 00000004 00001000 0000001c 000c42e8 be= e2b864 dfe0: 00000000 bee2b2a8 40166e0c 401ba21c 60000010 00000001 00000000 00= 000000 Backtrace:=20 [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00001000 r5:c7aa5f68 r4:c7a7dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00001000 r7:c7aa5eb8 r6:c7a9d8c0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00001000 r7:c7a7df70 r6:40018000 r5:c7a9d8c0 r4:00001000 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00001000 r7:00000000 r6:00000000 r5:40018000 r4:c7a9d8c0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40018000 r5:4022b5c8 r4:00001000 Code: e59f0010 e1a01003 eb0874b7 e3a03000 (e5833000)=20 ---[ end trace 849a9799d85b827b ]--- note: udevadm[238] exited with preempt_count 1 BUG: scheduling while atomic: udevadm/238/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7a7c000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7838640 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7a7dabc r3:00000001 [] (_cond_resched+0x0/0x48) from [] (unmap_page_ran= ge+0x1c4/0x1dc) [] (unmap_page_range+0x0/0x1dc) from [] (unmap_vmas= +0x80/0xb0) [] (unmap_vmas+0x0/0xb0) from [] (exit_mmap+0x12c/0= x290) [] (exit_mmap+0x0/0x290) from [] (mmput+0x3c/0xec) r7:c7a358b4 r6:00000000 r5:00000000 r4:c7a35880 [] (mmput+0x0/0xec) from [] (exit_mm+0x150/0x160) r5:c7838640 r4:c7a35880 [] (exit_mm+0x0/0x160) from [] (do_exit+0x1f8/0x2d8= ) r7:00000817 r6:00000001 r5:0000000b r4:c7838640 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7a7dca0 r6:c7a35880 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7838640 r5:c7a35880 r4:c7a7dca0 r3:c7a7dca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7a7dca0 to 0xc7a7dce8) dca0: 00000027 00000003 00000002 00000000 c7a7dd78 c0333980 00001000 00= 000000 dcc0: 00000000 00000000 c7a9d8c0 c7a7dcf4 c7a7dc30 c7a7dce8 c003e304 c0= 02cbf0 dce0: 20000013 ffffffff r8:00000000 r7:00000000 r6:00001000 r5:c7a7dcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00001000 r5:c7aa5f68 r4:c7a7dd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00001000 r7:c7aa5eb8 r6:c7a9d8c0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00001000 r7:c7a7df70 r6:40018000 r5:c7a9d8c0 r4:00001000 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00001000 r7:00000000 r6:00000000 r5:40018000 r4:c7a9d8c0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40018000 r5:4022b5c8 r4:00001000 Segmentation faultinit: syslogd main process (223) terminated with stat= us 139 init: syslogd main process ended, respawning init: networking main process (222) killed by SEGV signal init (339): /proc/339/oom_adj is deprecated, please use /proc/339/oom_s= core_adj instead. init: ntpclient pre-start process (340) terminated with status 1 init: dbus main process (347) terminated with status 1 init: dbus main process ended, respawning init: Unable to connect to the system bus: Failed to connect to socket = /var/run/dbus/system_bus_socket: No such file or directory kernel BUG at mm/filemap.c:2043! Unable to handle kernel NULL pointer dereference at virtual address 000= 00000 pgd =3D c7b4c000 [00000000] *pgd=3D87ad1831, *pte=3D00000000, *ppte=3D00000000 Internal error: Oops: 817 [#5] PREEMPT Modules linked in: CPU: 0 Tainted: G D (3.0.0-rt8-00001-gd5b0226 #160) PC is at __bug+0x24/0x30 LR is at vprintk+0x398/0x404 pc : [] lr : [] psr: 60000013 sp : c7b95ce8 ip : c7b95c30 fp : c7b95cf4 r10: c7a62ce0 r9 : 00000000 r8 : 00000000 r7 : 00000000 r6 : 00000004 r5 : c0423580 r4 : c7b95d78 r3 : 00000000 r2 : 00000002 r1 : 00000004 r0 : 00000027 =46lags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 87b4c008 DAC: 00000015 Process sshd (pid: 358, stack limit =3D 0xc7b94268) Stack: (0xc7b95ce8 to 0xc7b96000) 5ce0: c7b95d14 c7b95cf8 c0076ab4 c002cbd8 c7b95d78 c7= aa5ad0 5d00: 00000004 c0252f00 c7b95d74 c7b95d18 c0076c34 c0076a7c 00000004 00= 000000 5d20: c7b95d44 c7b95d40 c7b94000 00000000 00001000 00000000 00000000 00= 000000 5d40: c7b95d74 c0423580 c0041ccc 00000000 00000000 00000000 c7a62ce0 c7= b95d78 5d60: 00000000 00000000 c7b95dac c7b95d78 c0076d6c c0076b58 c7b95f10 00= 000001 5d80: 00000000 00000004 00000000 00000000 00000000 c7a62ce0 c7aa5a20 00= 000004 5da0: c7b95e3c c7b95db0 c0078f68 c0076d1c 00000000 00000000 c7b95ed0 00= 000004 5dc0: 00000000 c0035100 c7b95dec c7b95dd8 c0035100 c002b620 c7aa5ad0 c7= b95ed0 5de0: c7b95f10 c7b95e98 c008ecf4 c0035050 00000000 00000001 c7b95e24 c7= ac31d8 5e00: 40014000 00000000 c7b4d000 00000004 c7a081e0 00000000 c7a62ce0 c7= aa5a3c 5e20: 00000000 c7b95e98 c7b95f10 00000001 c7b95e8c c7b95e40 c007902c c0= 078b0c 5e40: c002b614 00000001 91827364 c7b95e4c c7b95e4c c7b95e54 c7b95e54 00= 000000 5e60: c7b95eb4 c7a62ce0 c7b95e98 c7b95f70 c7b95f10 fffffdee c7b94000 00= 000000 5e80: c7b95f3c c7b95e90 c00a184c c0078fc0 00000000 00000000 c014dfec c0= 035050 5ea0: 00000000 00000001 ffffffff c7a62ce0 00000000 00000000 00000000 00= 000000 5ec0: c78673e0 c005c3c4 00000000 00000000 00000000 00000000 00000007 40= 014000 5ee0: 00000004 c7b95fb0 00000004 bee57135 c7b95fac c7b95f00 c002420c c0= 02f114 5f00: c00242b0 c002f114 c7b95f2c c7b95f18 40014000 00000004 c7a08218 00= 000004 5f20: c7a62ce0 40014000 c7b95f70 00000004 c7b95f6c c7b95f40 c00a1fa0 c0= 0a17b0 5f40: c7b94000 40014000 00001000 c7a62ce0 40014000 00000000 00000000 00= 000004 5f60: c7b95fa4 c7b95f70 c00a2224 c00a1ef0 00000000 00000000 00000022 00= 000000 5f80: ffffffff 00000004 0006b7b8 40014000 00000004 c0029c24 00000000 c7= b95fa8 5fa0: c0029aa0 c00a21ec 00000004 0006b7b8 00000004 40014000 00000004 00= 000000 5fc0: 00000004 0006b7b8 40014000 00000004 00000004 00063710 000c42e8 be= e57bac 5fe0: 00000000 bee57180 402c2e0c 4031621c 60000010 00000004 c4cc457c c6= c88810 Backtrace:=20 [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000004 r5:c7aa5ad0 r4:c7b95d78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000004 r7:c7aa5a20 r6:c7a62ce0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000004 r7:c7b95f70 r6:40014000 r5:c7a62ce0 r4:00000004 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000004 r7:00000000 r6:00000000 r5:40014000 r4:c7a62ce0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40014000 r5:0006b7b8 r4:00000004 Code: e59f0010 e1a01003 eb0874b7 e3a03000 (e5833000)=20 ---[ end trace 849a9799d85b827c ]--- note: sshd[358] exited with preempt_count 1 BUG: scheduling while atomic: sshd/358/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7b94000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c78673e0 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7b95abc r3:00000001 [] (_cond_resched+0x0/0x48) from [] (unmap_page_ran= ge+0x1c4/0x1dc) [] (unmap_page_range+0x0/0x1dc) from [] (unmap_vmas= +0x80/0xb0) [] (unmap_vmas+0x0/0xb0) from [] (exit_mmap+0x12c/0= x290) [] (exit_mmap+0x0/0x290) from [] (mmput+0x3c/0xec) r7:c7a08214 r6:00000000 r5:00000000 r4:c7a081e0 [] (mmput+0x0/0xec) from [] (exit_mm+0x150/0x160) r5:c78673e0 r4:c7a081e0 [] (exit_mm+0x0/0x160) from [] (do_exit+0x1f8/0x2d8= ) r7:00000817 r6:00000001 r5:0000000b r4:c78673e0 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7b95ca0 r6:c7a081e0 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c78673e0 r5:c7a081e0 r4:c7b95ca0 r3:c7b95ca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7b95ca0 to 0xc7b95ce8) 5ca0: 00000027 00000004 00000002 00000000 c7b95d78 c0423580 00000004 00= 000000 5cc0: 00000000 00000000 c7a62ce0 c7b95cf4 c7b95c30 c7b95ce8 c003e2e8 c0= 02cbf0 5ce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000004 r5:c7b95cd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000004 r5:c7aa5ad0 r4:c7b95d78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000004 r7:c7aa5a20 r6:c7a62ce0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000004 r7:c7b95f70 r6:40014000 r5:c7a62ce0 r4:00000004 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000004 r7:00000000 r6:00000000 r5:40014000 r4:c7a62ce0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40014000 r5:0006b7b8 r4:00000004 init: udevmonitor main process (238) killed by SEGV signal BUG: scheduling while atomic: sshd/358/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7b94000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c78673e0 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c78182c0 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c78673e0 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7b95ca0 r6:c7a081e0 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c78673e0 r5:c7a081e0 r4:c7b95ca0 r3:c7b95ca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7b95ca0 to 0xc7b95ce8) 5ca0: 00000027 00000004 00000002 00000000 c7b95d78 c0423580 00000004 00= 000000 5cc0: 00000000 00000000 c7a62ce0 c7b95cf4 c7b95c30 c7b95ce8 c003e2e8 c0= 02cbf0 5ce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000004 r5:c7b95cd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000004 r5:c7aa5ad0 r4:c7b95d78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000004 r7:c7aa5a20 r6:c7a62ce0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000004 r7:c7b95f70 r6:40014000 r5:c7a62ce0 r4:00000004 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000004 r7:00000000 r6:00000000 r5:40014000 r4:c7a62ce0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40014000 r5:0006b7b8 r4:00000004 kernel BUG at mm/filemap.c:2043! Unable to handle kernel NULL pointer dereference at virtual address 000= 00000 pgd =3D c7bbc000 [00000000] *pgd=3D87aac831, *pte=3D00000000, *ppte=3D00000000 Internal error: Oops: 817 [#6] PREEMPT Modules linked in: CPU: 0 Tainted: G D (3.0.0-rt8-00001-gd5b0226 #160) PC is at __bug+0x24/0x30 LR is at vprintk+0x398/0x404 pc : [] lr : [] psr: 60000013 sp : c7aedce8 ip : c7aedc30 fp : c7aedcf4 r10: c7a22a40 r9 : 00000000 r8 : 00000000 r7 : 00000000 r6 : 00000004 r5 : c0334440 r4 : c7aedd78 r3 : 00000000 r2 : 00000002 r1 : 00000005 r0 : 00000027 =46lags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 87bbc008 DAC: 00000015 Process avahi-daemon (pid: 362, stack limit =3D 0xc7aec268) Stack: (0xc7aedce8 to 0xc7aee000) dce0: c7aedd14 c7aedcf8 c0076ab4 c002cbd8 c7aedd78 c7= aa57c0 dd00: 00000004 c0252f00 c7aedd74 c7aedd18 c0076c34 c0076a7c 00000004 00= 000000 dd20: c7aedd44 c7aedd40 c7aec000 00000000 00001000 00000000 00000000 00= 000000 dd40: c7aedd74 c0334440 c0041ccc 00000000 00000000 00000000 c7a22a40 c7= aedd78 dd60: 00000000 00000000 c7aeddac c7aedd78 c0076d6c c0076b58 c7aedf10 00= 000001 dd80: 00000000 00000004 00000000 00000000 00000000 c7a22a40 c7aa5710 00= 000004 dda0: c7aede3c c7aeddb0 c0078f68 c0076d1c 00000000 00000000 c7aeded0 00= 000004 ddc0: 00000000 c0422f80 c7aede24 c7aeddd8 c008e94c c007753c c7aa57c0 c7= aeded0 dde0: c7aedf10 c7aede98 00000000 00000004 40037000 00000001 c7aede24 c7= a94128 de00: 00000004 00000000 c7bbd000 00000004 c7a35880 00000000 c7a22a40 c7= aa572c de20: 00000000 c7aede98 c7aedf10 00000001 c7aede8c c7aede40 c007902c c0= 078b0c de40: c002b614 00000001 91827364 c7aede4c c7aede4c c7aede54 c7aede54 00= 000000 de60: c7aedeb4 c7a22a40 c7aede98 c7aedf70 c7aedf10 fffffdee c7aec000 00= 000000 de80: c7aedf3c c7aede90 c00a184c c0078fc0 00000000 00000000 c014dfec c0= 035050 dea0: 00000000 00000001 ffffffff c7a22a40 00000000 00000000 00000000 00= 000000 dec0: c7bda940 c005c3c4 00000000 00000000 00000000 00000000 00000007 40= 037078 dee0: 00000004 c7aedfb0 00000004 40037078 c7aedfac c7aedf00 c002420c c0= 02f114 df00: 00000000 c7001660 c7aedf2c c7aedf18 bea9ab88 00000004 00000000 00= 000004 df20: c7a22a40 bea9ab88 c7aedf70 00000004 c7aedf6c c7aedf40 c00a1fa0 c0= 0a17b0 df40: 00000000 00000000 00000000 c7a22a40 bea9ab88 00000000 00000000 00= 000004 df60: c7aedfa4 c7aedf70 c00a2224 c00a1ef0 00000000 00000000 c7aedfa4 00= 000000 df80: c00b09c0 4003f274 40285a58 00000005 00000004 c0029c24 00000000 c7= aedfa8 dfa0: c0029aa0 c00a21ec 4003f274 40285a58 00000005 bea9ab88 00000004 00= 000000 dfc0: 4003f274 40285a58 00000005 00000004 00019f38 00000004 00000004 00= 000005 dfe0: 0000003f bea9ab88 40036340 4014aaec 60000010 00000005 00000000 00= 000000 Backtrace:=20 [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000004 r5:c7aa57c0 r4:c7aedd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000004 r7:c7aa5710 r6:c7a22a40 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000004 r7:c7aedf70 r6:bea9ab88 r5:c7a22a40 r4:00000004 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000004 r7:00000000 r6:00000000 r5:bea9ab88 r4:c7a22a40 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:00000005 r5:40285a58 r4:4003f274 Code: e59f0010 e1a01003 eb0874b7 e3a03000 (e5833000)=20 ---[ end trace 849a9799d85b827d ]--- note: avahi-daemon[362] exited with preempt_count 1 BUG: scheduling while atomic: avahi-daemon/362/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7aec000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c7bda940 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c7aedabc r3:00000001 [] (_cond_resched+0x0/0x48) from [] (unmap_page_ran= ge+0x1c4/0x1dc) [] (unmap_page_range+0x0/0x1dc) from [] (unmap_vmas= +0x80/0xb0) [] (unmap_vmas+0x0/0xb0) from [] (exit_mmap+0x12c/0= x290) [] (exit_mmap+0x0/0x290) from [] (mmput+0x3c/0xec) r7:c7a358b4 r6:00000000 r5:00000000 r4:c7a35880 [] (mmput+0x0/0xec) from [] (exit_mm+0x150/0x160) r5:c7bda940 r4:c7a35880 [] (exit_mm+0x0/0x160) from [] (do_exit+0x1f8/0x2d8= ) r7:00000817 r6:00000001 r5:0000000b r4:c7bda940 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7aedca0 r6:c7a35880 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c7bda940 r5:c7a35880 r4:c7aedca0 r3:c7aedca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7aedca0 to 0xc7aedce8) dca0: 00000027 00000005 00000002 00000000 c7aedd78 c0334440 00000004 00= 000000 dcc0: 00000000 00000000 c7a22a40 c7aedcf4 c7aedc30 c7aedce8 c003e2e8 c0= 02cbf0 dce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000004 r5:c7aedcd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000004 r5:c7aa57c0 r4:c7aedd78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000004 r7:c7aa5710 r6:c7a22a40 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000004 r7:c7aedf70 r6:bea9ab88 r5:c7a22a40 r4:00000004 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000004 r7:00000000 r6:00000000 r5:bea9ab88 r4:c7a22a40 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:00000005 r5:40285a58 r4:4003f274 init: syscfgmgr main process (357) killed by ABRT signal init: syscfgmgr main process ended, respawning init: httpdata main process (352) killed by ABRT signal init: httpdata main process ended, respawning init: dbuslistener main process (353) killed by ABRT signal init: dbuslistener main process ended, respawning init: fwconfig main process (354) killed by ABRT signal init: fwconfig main process ended, respawning init: parameter main process (355) killed by ABRT signal init: parameter main process ended, respawning init: storagemanager main process (356) killed by ABRT signal init: storagemanager main process ended, respawning BUG: scheduling while atomic: sshd/358/0x40000002 Modules linked in: Backtrace:=20 [] (dump_backtrace+0x0/0x110) from [] (dump_stack+0= x18/0x1c) r6:c7b94000 r5:c0304b38 r4:00000000 r3:20000113 [] (dump_stack+0x0/0x1c) from [] (__schedule_bug+0x= 58/0x64) [] (__schedule_bug+0x0/0x64) from [] (__schedule+0x= 60/0x2f0) r4:c78673e0 r3:00000000 [] (__schedule+0x0/0x2f0) from [] (__cond_resched+0= x24/0x3c) [] (__cond_resched+0x0/0x3c) from [] (_cond_resched= +0x38/0x48) r4:c78182c0 r3:00000001 [] (_cond_resched+0x0/0x48) from [] (put_files_stru= ct+0x94/0xec) [] (put_files_struct+0x0/0xec) from [] (exit_files+= 0x58/0x5c) [] (exit_files+0x0/0x5c) from [] (do_exit+0x208/0x2= d8) r5:0000000b r4:c78673e0 [] (do_exit+0x0/0x2d8) from [] (die+0x114/0x128) [] (die+0x0/0x128) from [] (__do_kernel_fault+0x6c/= 0x8c) r7:c7b95ca0 r6:c7a081e0 r5:00000817 r4:00000000 [] (__do_kernel_fault+0x0/0x8c) from [] (do_page_fa= ult+0x134/0x14c) r8:00000000 r7:c03030cc r6:c78673e0 r5:c7a081e0 r4:c7b95ca0 r3:c7b95ca0 [] (do_page_fault+0x0/0x14c) from [] (do_DataAbort+= 0x38/0xa0) [] (do_DataAbort+0x0/0xa0) from [] (__dabt_svc+0x4c= /0x80) Exception stack(0xc7b95ca0 to 0xc7b95ce8) 5ca0: 00000027 00000004 00000002 00000000 c7b95d78 c0423580 00000004 00= 000000 5cc0: 00000000 00000000 c7a62ce0 c7b95cf4 c7b95c30 c7b95ce8 c003e2e8 c0= 02cbf0 5ce0: 60000013 ffffffff r8:00000000 r7:00000000 r6:00000004 r5:c7b95cd4 r4:ffffffff [] (__bug+0x0/0x30) from [] (iov_iter_copy_from_use= r_atomic+0x44/0xdc) [] (iov_iter_copy_from_user_atomic+0x0/0xdc) from [= ] (generic_perform_write+0xe8/0x1c4) r7:c0252f00 r6:00000004 r5:c7aa5ad0 r4:c7b95d78 [] (generic_perform_write+0x0/0x1c4) from [] (gener= ic_file_buffered_write+0x5c/0x88) [] (generic_file_buffered_write+0x0/0x88) from [] (= __generic_file_aio_write+0x468/0x4b4) r8:00000004 r7:c7aa5a20 r6:c7a62ce0 r5:00000000 r4:00000000 [] (__generic_file_aio_write+0x0/0x4b4) from [] (ge= neric_file_aio_write+0x78/0xe8) [] (generic_file_aio_write+0x0/0xe8) from [] (do_sy= nc_write+0xa8/0xe4) [] (do_sync_write+0x0/0xe4) from [] (vfs_write+0xbc= /0x148) r8:00000004 r7:c7b95f70 r6:40014000 r5:c7a62ce0 r4:00000004 [] (vfs_write+0x0/0x148) from [] (sys_write+0x44/0x= 70) r8:00000004 r7:00000000 r6:00000000 r5:40014000 r4:c7a62ce0 [] (sys_write+0x0/0x70) from [] (ret_fast_syscall+0= x0/0x30) r8:c0029c24 r7:00000004 r6:40014000 r5:0006b7b8 r4:00000004 init: ssh main process (358) killed by SEGV signal init: ssh main process ended, respawning init: avahi-daemon main process (362) killed by SEGV signal init: avahi-daemon main process ended, respawning init: avahi-daemon main process (374) terminated with status 255 init: avahi-daemon main process ended, respawning Hottinger Baldwin Messtechnik GmbH, Im Tiefen See 45, 64293 Darmstadt, = Germany | www.hbm.com=20 Registered as GmbH (German limited liability corporation) in the commer= cial register at the local court of Darmstadt, HRB 1147 =20 Company domiciled in Darmstadt | CEO: Andreas Huellhorst | Chairman of = the board: James Charles Webster Als Gesellschaft mit beschraenkter Haftung eingetragen im Handelsregist= er des Amtsgerichts Darmstadt unter HRB 1147=20 Sitz der Gesellschaft: Darmstadt | Geschaeftsfuehrung: Andreas Huellhor= st | Aufsichtsratsvorsitzender: James Charles Webster The information in this email is confidential. It is intended solely fo= r the addressee. If you are not the intended recipient, please let me k= now and delete this email. Die in dieser E-Mail enthaltene Information ist vertraulich und ledigli= ch f=C3=BCr den Empfaenger bestimmt. Sollten Sie nicht der eigentliche = Empfaenger sein, informieren Sie mich bitte kurz und loeschen diese E-M= ail. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-user= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html