From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f175.google.com (mail-ig0-f175.google.com [209.85.213.175]) by kanga.kvack.org (Postfix) with ESMTP id 8DDB982F65 for ; Wed, 21 Oct 2015 20:06:52 -0400 (EDT) Received: by igbhv6 with SMTP id hv6so49512791igb.0 for ; Wed, 21 Oct 2015 17:06:52 -0700 (PDT) Received: from mail-pa0-x232.google.com (mail-pa0-x232.google.com. [2607:f8b0:400e:c03::232]) by mx.google.com with ESMTPS id f65si9280117ioj.52.2015.10.21.17.06.50 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 21 Oct 2015 17:06:50 -0700 (PDT) Received: by pasz6 with SMTP id z6so68749938pas.2 for ; Wed, 21 Oct 2015 17:06:50 -0700 (PDT) Date: Thu, 22 Oct 2015 09:06:48 +0900 From: Minchan Kim Subject: Re: kernel oops on mmotm-2015-10-15-15-20 Message-ID: <20151022000648.GD23631@bbox> References: <20151021052836.GB6024@bbox> <20151021110723.GC10597@node.shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20151021110723.GC10597@node.shutemov.name> Sender: owner-linux-mm@kvack.org List-ID: To: "Kirill A. Shutemov" Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Hugh Dickins , Rik van Riel , Mel Gorman , Michal Hocko , Johannes Weiner , Vlastimil Babka On Wed, Oct 21, 2015 at 02:07:23PM +0300, Kirill A. Shutemov wrote: > On Wed, Oct 21, 2015 at 02:28:36PM +0900, Minchan Kim wrote: > > I detach this report from my patchset thread because I see below > > problem with removing MADV_FREE related code and I can reproduce > > same oops with MADV_FREE + recent patches(both my SetPageDirty > > and Kirill's pte_mkdirty) within 7 hours. >=20 > Could you share code for your workload? It's part of test suite so I need time to factor it out. I will do/test and send it. >=20 > > I can not be sure it's THP refcount redesign's problem but it was > > one of big change in MM between mmotm-2015-10-15-15-20 and > > mmotm-2015-10-06-16-30 so it could be a culprit. > >=20 > > In page_lock_anon_vma_read, anon_vma_root was NULL. > > I added VM_BUG_ON_PAGE(!root_anon_vma, page) in there and got the resul= t. >=20 > Hm. That's tricky.. :-/ >=20 > Could you please dump anon_vma->refcount too? I added the code to check it and queued it again but I had another oops in this time but symptom is related to anon_vma, too. (kernel is based on recent mmotm + unconditional mkdirty for bug fix) It seems page_get_anon_vma returns NULL since the page was not page_mapped at that time but second check of page_mapped right before try_to_unmap seems to be true. Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191228k FS Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191228k FS page:ffffea0001cfbfc0 count:3 mapcount:1 mapping:ffff88007f1b5f51 index:0x6= 00000aff flags: 0x4000000000048019(locked|uptodate|dirty|swapcache|swapbacked) page dumped because: VM_BUG_ON_PAGE(PageAnon(page) && !PageKsm(page) && !an= on_vma) page->mem_cgroup:ffff88007f3dcc00 ------------[ cut here ]------------ kernel BUG at mm/migrate.c:889! invalid opcode: 0000 [#1] SMP=20 Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 11 PID: 59 Comm: khugepaged Not tainted 4.3.0-rc6-next-20151021-THP-re= f-madv_free+ #1557 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 task: ffff8800b9851a40 ti: ffff8800b985c000 task.ti: ffff8800b985c000 RIP: 0010:[] [] migrate_pages+0x8e6/0x= 950 RSP: 0018:ffff8800b985fa00 EFLAGS: 00010286 RAX: 0000000000000021 RBX: ffffea0002dd7fc0 RCX: ffffffff81830db8 RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffffffff821df4d8 RBP: ffff8800b985fa80 R08: 0000000000000000 R09: ffff8800000bb160 R10: ffffffff8163e000 R11: 00000000000001e0 R12: 0000000000000000 R13: ffffea0001cfbf80 R14: ffffea0001cfbfc0 R15: ffffffff8189de80 FS: 0000000000000000(0000) GS:ffff8800bfb60000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00005594f9d7e578 CR3: 0000000001808000 CR4: 00000000000006a0 Stack: ffff8800b9851a40 0000000000000000 0000000000000000 0000000000000000 ffffffff811144b0 0000000000000000 ffffffff81115fb0 ffffea0001cfbfe0 ffff8800b985fb30 ffff8800b985fb20 0000000000000000 ffff8800b985fb20 Call Trace: [] ? trace_raw_output_mm_compaction_defer_template+0xc0/= 0xc0 [] ? isolate_freepages_block+0x3d0/0x3d0 [] compact_zone+0x2bb/0x720 [] ? retint_kernel+0x10/0x10 [] ? list_del+0xd/0x30 [] compact_zone_order+0x6d/0xa0 [] try_to_compact_pages+0xed/0x200 [] __alloc_pages_direct_compact+0x3b/0xd4 [] __alloc_pages_nodemask+0x3fb/0x920 [] khugepaged+0x158/0x1b90 [] ? hrtick_update+0x51/0x70 [] ? prepare_to_wait_event+0xf0/0xf0 [] ? unfreeze_page+0x320/0x320 [] kthread+0xc9/0xe0 [] ? kthread_park+0x60/0x60 [] ret_from_fork+0x3f/0x70 [] ? kthread_park+0x60/0x60 Code: 44 c6 48 8b 40 08 83 e0 03 48 83 f8 03 0f 84 fd fa ff ff 4d 85 e4 0f = 85 f4 fa ff ff 48 c7 c6 58 e9 77 81 4c 89 f7 e8 fa 2a fd ff <0f> 0b 48 83 e= 8 01 e9 d0 fa ff ff f6 40 07 01 0f 84 5b fd ff ff=20 RIP [] migrate_pages+0x8e6/0x950 RSP ---[ end trace 59eb35cc15af8a53 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled >=20 > I have vage suspicion that I'm screwing up anon_vma refcounting during > split_huge_page. >=20 > It would be great to see if the page was part of THP before. >=20 > >=20 > > .. > > .. > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:419122= 8k FS > > page:ffffea0001b81140 count:3 mapcount:1 mapping:ffff88007e806461 index= :0x600001445 > > page:ffffea0001b87bc0 count:3 mapcount:1 mapping:ffff88007e806461 index= :0x6000015ef > > flags: 0x4000000000048019(locked|uptodate|dirty|swapcache|swapbacked) > > page dumped because: VM_BUG_ON_PAGE(1) > > page->mem_cgroup:ffff88007f2de000 > > ------------[ cut here ]------------ > > kernel BUG at mm/rmap.c:517! > > invalid opcode: 0000 [#1] SMP=20 > > Dumping ftrace buffer: > > (ftrace buffer empty) > > Modules linked in: > > CPU: 0 PID: 24935 Comm: madvise_test Not tainted 4.3.0-rc5-mm1-THP-ref-= madv_free+ #1555 > > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01= /2011 > > task: ffff880000ce8000 ti: ffff8800ada28000 task.ti: ffff8800ada28000 > > RIP: 0010:[] [] page_lock_anon_vma= _read+0x18e/0x190 > > RSP: 0000:ffff8800ada2b868 EFLAGS: 00010296 > > RAX: 0000000000000021 RBX: ffffea0001b87bc0 RCX: 0000000000000000 > > RDX: 0000000000000001 RSI: 0000000000000282 RDI: ffffffff81830db0 > > RBP: ffff8800ada2b888 R08: 0000000000000021 R09: ffff8800ba40eb75 > > R10: 0000000001ff14bc R11: 0000000000000000 R12: ffff88007e806461 > > R13: ffff88007e806460 R14: 0000000000000000 R15: ffffffff818464c0 > > FS: 00007f6d93212740(0000) GS:ffff8800bfa00000(0000) knlGS:00000000000= 00000 > > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > CR2: 0000600003c14000 CR3: 00000000a674b000 CR4: 00000000000006b0 > > Stack: > > ffffea0001b87bc0 ffff8800ada2b8f8 ffff88007f2de000 0000000000000000 > > ffff8800ada2b8d0 ffffffff81129593 ffff880000000000 ffffffff8105f8c0 > > ffffea0001b87bc0 ffff8800ada2b9f8 ffff88007f2de000 0000000000000000 > > Call Trace: > > [] rmap_walk+0x1b3/0x3f0 > > [] ? finish_task_switch+0x70/0x260 > > [] page_referenced+0x1a3/0x220 > > [] ? __page_check_address+0x1d0/0x1d0 > > [] ? page_get_anon_vma+0xd0/0xd0 > > [] ? anon_vma_ctor+0x40/0x40 > > [] shrink_page_list+0x5ce/0xdc0 > > [] shrink_inactive_list+0x18c/0x4b0 > > [] shrink_lruvec+0x58f/0x730 > > [] shrink_zone+0xd4/0x280 > > [] do_try_to_free_pages+0x12d/0x3b0 > > [] try_to_free_mem_cgroup_pages+0x9d/0x120 > > [] try_charge+0x175/0x720 > > [] ? __activate_page+0x230/0x230 > > [] mem_cgroup_try_charge+0x85/0x1d0 > > [] handle_mm_fault+0xc9a/0x1000 > > [] ? __set_cpus_allowed_ptr+0x9b/0x1a0 > > [] __do_page_fault+0x189/0x400 > > [] do_page_fault+0xc/0x10 > > [] page_fault+0x22/0x30 > > Code: c9 0f 84 b9 fe ff ff 8d 51 01 89 c8 f0 0f b1 16 39 c1 0f 84 11 ff= ff ff 89 c1 eb e3 48 c7 c6 88 02 78 81 48 89 df e8 02 f3 fe ff <0f> 0b 0f = 1f 44 00 00 55 48 89 e5 41 57 41 56 45 31 f6=20 > > 41 55 4c=20 > > RIP [] page_lock_anon_vma_read+0x18e/0x190 > > RSP > > ---[ end trace cfbb87f54f12290e ]--- > > Kernel panic - not syncing: Fatal exception > > Dumping ftrace buffer: > > (ftrace buffer empty) > > Kernel Offset: disabled > >=20 > > On Tue, Oct 20, 2015 at 10:38:54AM +0900, Minchan Kim wrote: > > > On Mon, Oct 19, 2015 at 07:01:50PM +0900, Minchan Kim wrote: > > > > On Mon, Oct 19, 2015 at 03:31:42PM +0900, Minchan Kim wrote: > > > > > Hello, it's too late since I sent previos patch. > > > > > https://lkml.org/lkml/2015/6/3/37 > > > > >=20 > > > > > This patch is alomost new compared to previos approach. > > > > > I think this is more simple, clear and easy to review. > > > > >=20 > > > > > One thing I should notice is that I have tested this patch > > > > > and couldn't find any critical problem so I rebased patchset > > > > > onto recent mmotm(ie, mmotm-2015-10-15-15-20) to send formal > > > > > patchset. Unfortunately, I start to see sudden discarding of > > > > > the page we shouldn't do. IOW, application's valid anonymous page > > > > > was disappeared suddenly. > > > > >=20 > > > > > When I look through THP changes, I think we could lose > > > > > dirty bit of pte between freeze_page and unfreeze_page > > > > > when we mark it as migration entry and restore it. > > > > > So, I added below simple code without enough considering > > > > > and cannot see the problem any more. > > > > > I hope it's good hint to find right fix this problem. > > > > >=20 > > > > > diff --git a/mm/huge_memory.c b/mm/huge_memory.c > > > > > index d5ea516ffb54..e881c04f5950 100644 > > > > > --- a/mm/huge_memory.c > > > > > +++ b/mm/huge_memory.c > > > > > @@ -3138,6 +3138,9 @@ static void unfreeze_page_vma(struct vm_are= a_struct *vma, struct page *page, > > > > > if (is_write_migration_entry(swp_entry)) > > > > > entry =3D maybe_mkwrite(entry, vma); > > > > > =20 > > > > > + if (PageDirty(page)) > > > > > + SetPageDirty(page); > > > >=20 > > > > The condition of PageDirty was typo. I didn't add the condition. > > > > Just added. > > > >=20 > > > > SetPageDirty(page); > > >=20 > > > For the first step to find this bug, I removed all MADV_FREE related > > > code in mmotm-2015-10-15-15-20. IOW, git checkout 54bad5da4834 > > > (arm64: add pmd_[dirty|mkclean] for THP) so the tree doesn't have > > > any core code of MADV_FREE. > > >=20 > > > I tested following workloads in my KVM machine. > > >=20 > > > 0. make memcg > > > 1. limit memcg > > > 2. fork several processes > > > 3. each process allocates THP page and fill > > > 4. increase limit of the memcg to swapoff successfully > > > 5. swapoff > > > 6. kill all of processes > > > 7. goto 1 > > >=20 > > > Within a few hours, I encounter following bug. > > > Attached detailed boot log and dmesg result. > > >=20 > > >=20 > > > Initializing cgroup subsys cpu > > > Command line: hung_task_panic=3D1 earlyprintk=3DttyS0,115200 debug ap= ic=3Ddebug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=3D100 panic= =3D-1 softlockup_panic=3D1 nmi_watchdog=3Dpanic oops=3Dpanic console=3DttyS= 0,115200 console=3Dtty0 earlyprintk=3DttyS0 ignore_loglevel ftrace_dump_on_= oops vga=3Dnormal root=3D/dev/vda1 rw > > > KERNEL supported cpus: > > > Intel GenuineIntel > > > x86/fpu: Legacy x87 FPU detected. > > > x86/fpu: Using 'lazy' FPU context switches. > > > e820: BIOS-provided physical RAM map: > > > BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable > > > BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved > > > BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved > > > BIOS-e820: [mem 0x0000000000100000-0x00000000bfffbfff] usable > > > BIOS-e820: [mem 0x00000000bfffc000-0x00000000bfffffff] reserved > > > BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved > > > BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved > > >=20 > > > > > >=20 > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > BUG: unable to handle kernel NULL pointer dereference at 000000000000= 0008 > > > IP: [] down_read_trylock+0x9/0x30 > > > PGD 0=20 > > > Oops: 0000 [#1] SMP=20 > > > Dumping ftrace buffer: > > > (ftrace buffer empty) > > > Modules linked in: > > > CPU: 1 PID: 26445 Comm: sh Not tainted 4.3.0-rc5-mm1-diet-meta+ #1545 > > > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/= 01/2011 > > > task: ffff8800b9af3480 ti: ffff88007fea0000 task.ti: ffff88007fea0000 > > > RIP: 0010:[] [] down_read_tryloc= k+0x9/0x30 > > > RSP: 0018:ffff88007fea3648 EFLAGS: 00010202 > > > RAX: 0000000000000001 RBX: ffffea0002324900 RCX: ffff88007fea37e8 > > > RDX: 0000000000000000 RSI: ffff88007fea36e8 RDI: 0000000000000008 > > > RBP: ffff88007fea3648 R08: ffffffff818446a0 R09: ffff8800b9af4c80 > > > R10: 0000000000000216 R11: 0000000000000001 R12: ffff88007f58d6e1 > > > R13: ffff88007f58d6e0 R14: 0000000000000008 R15: 0000000000000001 > > > FS: 00007f0993e78740(0000) GS:ffff8800bfa20000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > > CR2: 0000000000000008 CR3: 000000007edee000 CR4: 00000000000006a0 > > > Stack: > > > ffff88007fea3678 ffffffff81124ff0 ffffea0002324900 ffff88007fea36e8 > > > ffff88009ffe8400 0000000000000000 ffff88007fea36c0 ffffffff81125733 > > > ffff8800bfa34540 ffffffff8105dc9d ffffea0002324900 ffff88007fea37e8 > > > Call Trace: > > > [] page_lock_anon_vma_read+0x60/0x180 > > > [] rmap_walk+0x1b3/0x3f0 > > > [] ? finish_task_switch+0x5d/0x1f0 > > > [] page_referenced+0x1a3/0x220 > > > [] ? __page_check_address+0x1a0/0x1a0 > > > [] ? page_get_anon_vma+0xd0/0xd0 > > > [] ? anon_vma_ctor+0x40/0x40 > > > [] shrink_page_list+0x5ab/0xde0 > > > [] shrink_inactive_list+0x18c/0x4b0 > > > [] shrink_lruvec+0x59d/0x740 > > > [] shrink_zone+0x90/0x250 > > > [] do_try_to_free_pages+0x12d/0x3b0 > > > [] try_to_free_mem_cgroup_pages+0x9d/0x120 > > > [] try_charge+0x163/0x700 > > > [] mem_cgroup_do_precharge+0x54/0x70 > > > [] mem_cgroup_can_attach+0x175/0x1b0 > > > [] ? kernfs_iattrs.isra.6+0x37/0xd0 > > > [] ? get_mctgt_type+0x320/0x320 > > > [] cgroup_migrate+0x149/0x440 > > > [] cgroup_attach_task+0x7c/0xe0 > > > [] __cgroup_procs_write.isra.33+0x1d4/0x2b0 > > > [] cgroup_tasks_write+0x10/0x20 > > > [] cgroup_file_write+0x38/0xf0 > > > [] kernfs_fop_write+0x11d/0x170 > > > [] __vfs_write+0x28/0xe0 > > > [] ? __fd_install+0x24/0xc0 > > > [] ? percpu_down_read+0x21/0x50 > > > [] vfs_write+0xa1/0x170 > > > [] SyS_write+0x46/0xa0 > > > [] entry_SYSCALL_64_fastpath+0x12/0x6a > > > Code: 5e 82 3a 00 48 83 c4 08 5b 5d c3 48 89 45 f0 e8 9b 6a 3a 00 48 = 8b 45 f0 eb df 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 <48> 8b 0= 7 48 89 c2 48 83 c2 01 7e 07 f0 48 0f b1 17 75 f0 48 f7=20 > > > RIP [] down_read_trylock+0x9/0x30 > > > RSP > > > CR2: 0000000000000008 > > > BUG: unable to handle kernel ---[ end trace e81a82c8122b447d ]--- > > > Kernel panic - not syncing: Fatal exception > > >=20 > > > NULL pointer dereference at 0000000000000008 > > > IP: [] down_read_trylock+0x9/0x30 > > > PGD 0=20 > > > Oops: 0000 [#2] SMP=20 > > > Dumping ftrace buffer: > > > (ftrace buffer empty) > > > Modules linked in: > > > CPU: 10 PID: 59 Comm: khugepaged Tainted: G D 4.3.0-rc5-= mm1-diet-meta+ #1545 > > > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/= 01/2011 > > > task: ffff8800b9851a40 ti: ffff8800b985c000 task.ti: ffff8800b985c000 > > > RIP: 0010:[] [] down_read_tryloc= k+0x9/0x30 > > > RSP: 0018:ffff8800b985f778 EFLAGS: 00010202 > > > RAX: 0000000000000001 RBX: ffffea0002321800 RCX: ffff8800b985f918 > > > RDX: 0000000000000000 RSI: ffff8800b985f818 RDI: 0000000000000008 > > > RBP: ffff8800b985f778 R08: ffffffff818446a0 R09: ffff8800b9853240 > > > R10: 000000000000ba03 R11: 0000000000000001 R12: ffff88007f58d6e1 > > > R13: ffff88007f58d6e0 R14: 0000000000000008 R15: 0000000000000001 > > > FS: 0000000000000000(0000) GS:ffff8800bfb40000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > > CR2: 0000000000000008 CR3: 0000000001808000 CR4: 00000000000006a0 > > > Stack: > > > ffff8800b985f7a8 ffffffff81124ff0 ffffea0002321800 ffff8800b985f818 > > > ffff88009ffe8400 0000000000000000 ffff8800b985f7f0 ffffffff81125733 > > > ffff8800bfb54540 ffffffff8105dc9d ffffea0002321800 ffff8800b985f918 > > > Call Trace: > > > [] page_lock_anon_vma_read+0x60/0x180 > > > [] rmap_walk+0x1b3/0x3f0 > > > [] ? finish_task_switch+0x5d/0x1f0 > > > [] page_referenced+0x1a3/0x220 > > > [] ? __page_check_address+0x1a0/0x1a0 > > > [] ? page_get_anon_vma+0xd0/0xd0 > > > [] ? anon_vma_ctor+0x40/0x40 > > > [] shrink_page_list+0x5ab/0xde0 > > > [] shrink_inactive_list+0x18c/0x4b0 > > > [] shrink_lruvec+0x59d/0x740 > > > [] shrink_zone+0x90/0x250 > > > [] do_try_to_free_pages+0x12d/0x3b0 > > > [] try_to_free_mem_cgroup_pages+0x9d/0x120 > > > [] try_charge+0x163/0x700 > > > [] ? schedule+0x33/0x80 > > > [] mem_cgroup_try_charge+0x9f/0x1d0 > > > [] khugepaged+0x7cc/0x1ac0 > > > [] ? hrtick_update+0x1/0x70 > > > [] ? prepare_to_wait_event+0xf0/0xf0 > > > [] ? total_mapcount+0x70/0x70 > > > [] kthread+0xc9/0xe0 > > > [] ? kthread_park+0x60/0x60 > > > [] ret_from_fork+0x3f/0x70 > > > [] ? kthread_park+0x60/0x60 > > > Code: 5e 82 3a 00 48 83 c4 08 5b 5d c3 48 89 45 f0 e8 9b 6a 3a 00 48 = 8b 45 f0 eb df 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 <48> 8b 0= 7 48 89 c2 48 83 c2 01 7e 07 f0 48 0f b1 17 75 f0 48 f7=20 > > > RIP [] down_read_trylock+0x9/0x30 > > > RSP > > > CR2: 0000000000000008 > > > ---[ end trace e81a82c8122b447e ]--- > > > Shutting down cpus with NMI > > > Dumping ftrace buffer: > > > (ftrace buffer empty) > > > Kernel Offset: disabled > > >=20 > >=20 > > > QEMU 2.0.0 monitor - type 'help' for more information > > > (qemu) s=1B[Kearly console in setup code > > > Initializing cgroup subsys cpu > > > Linux version 4.3.0-rc5-mm1-diet-meta+ (barrios@bbox) (gcc version 4.= 8.4 (Ubuntu 4.8.4-2ubuntu1~14.04) ) #1545 SMP Tue Oct 20 08:55:45 KST 2015 > > > Command line: hung_task_panic=3D1 earlyprintk=3DttyS0,115200 debug ap= ic=3Ddebug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=3D100 panic= =3D-1 softlockup_panic=3D1 nmi_watchdog=3Dpanic oops=3Dpanic console=3DttyS= 0,115200 console=3Dtty0 earlyprintk=3DttyS0 ignore_loglevel ftrace_dump_on_= oops vga=3Dnormal root=3D/dev/vda1 rw > > > KERNEL supported cpus: > > > Intel GenuineIntel > > > x86/fpu: Legacy x87 FPU detected. > > > x86/fpu: Using 'lazy' FPU context switches. > > > e820: BIOS-provided physical RAM map: > > > BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable > > > BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved > > > BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved > > > BIOS-e820: [mem 0x0000000000100000-0x00000000bfffbfff] usable > > > BIOS-e820: [mem 0x00000000bfffc000-0x00000000bfffffff] reserved > > > BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved > > > BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved > > > bootconsole [earlyser0] enabled > > > debug: ignoring loglevel setting. > > > NX (Execute Disable) protection: active > > > SMBIOS 2.4 present. > > > DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > > > e820: update [mem 0x00000000-0x00000fff] usable =3D=3D> reserved > > > e820: remove [mem 0x000a0000-0x000fffff] usable > > > e820: last_pfn =3D 0xbfffc max_arch_pfn =3D 0x400000000 > > > MTRR default type: write-back > > > MTRR fixed ranges enabled: > > > 00000-9FFFF write-back > > > A0000-BFFFF uncachable > > > C0000-FFFFF write-protect > > > MTRR variable ranges enabled: > > > 0 base 00C0000000 mask FFC0000000 uncachable > > > 1 disabled > > > 2 disabled > > > 3 disabled > > > 4 disabled > > > 5 disabled > > > 6 disabled > > > 7 disabled > > > x86/PAT: PAT not supported by CPU. > > > Scan for SMP in [mem 0x00000000-0x000003ff] > > > Scan for SMP in [mem 0x0009fc00-0x0009ffff] > > > Scan for SMP in [mem 0x000f0000-0x000fffff] > > > found SMP MP-table at [mem 0x000f0a70-0x000f0a7f] mapped at [ffff8800= 000f0a70] > > > mpc: f0a80-f0c44 > > > Scanning 1 areas for low memory corruption > > > Base memory trampoline at [ffff880000099000] 99000 size 24576 > > > init_memory_mapping: [mem 0x00000000-0x000fffff] > > > [mem 0x00000000-0x000fffff] page 4k > > > BRK [0x0220e000, 0x0220efff] PGTABLE > > > BRK [0x0220f000, 0x0220ffff] PGTABLE > > > BRK [0x02210000, 0x02210fff] PGTABLE > > > init_memory_mapping: [mem 0xbfc00000-0xbfdfffff] > > > [mem 0xbfc00000-0xbfdfffff] page 2M > > > BRK [0x02211000, 0x02211fff] PGTABLE > > > init_memory_mapping: [mem 0xa0000000-0xbfbfffff] > > > [mem 0xa0000000-0xbfbfffff] page 2M > > > init_memory_mapping: [mem 0x80000000-0x9fffffff] > > > [mem 0x80000000-0x9fffffff] page 2M > > > init_memory_mapping: [mem 0x00100000-0x7fffffff] > > > [mem 0x00100000-0x001fffff] page 4k > > > [mem 0x00200000-0x7fffffff] page 2M > > > init_memory_mapping: [mem 0xbfe00000-0xbfffbfff] > > > [mem 0xbfe00000-0xbfffbfff] page 4k > > > BRK [0x02212000, 0x02212fff] PGTABLE > > > RAMDISK: [mem 0x7851a000-0x7fffffff] > > > [ffffea0000000000-ffffea0002ffffff] PMD -> [ffff8800bc400000-ffff880= 0bf3fffff] on node 0 > > > Zone ranges: > > > DMA [mem 0x0000000000001000-0x0000000000ffffff] > > > DMA32 [mem 0x0000000001000000-0x00000000bfffbfff] > > > Normal empty > > > Movable zone start for each node > > > Early memory node ranges > > > node 0: [mem 0x0000000000001000-0x000000000009efff] > > > node 0: [mem 0x0000000000100000-0x00000000bfffbfff] > > > Initmem setup node 0 [mem 0x0000000000001000-0x00000000bfffbfff] > > > On node 0 totalpages: 786330 > > > DMA zone: 64 pages used for memmap > > > DMA zone: 21 pages reserved > > > DMA zone: 3998 pages, LIFO batch:0 > > > DMA32 zone: 12224 pages used for memmap > > > DMA32 zone: 782332 pages, LIFO batch:31 > > > Intel MultiProcessor Specification v1.4 > > > mpc: f0a80-f0c44 > > > MPTABLE: OEM ID: BOCHSCPU > > > MPTABLE: Product ID: 0.1 =20 > > > MPTABLE: APIC at: 0xFEE00000 > > > mapped APIC to ffffffffff5fd000 ( fee00000) > > > Processor #0 (Bootup-CPU) > > > Processor #1 > > > Processor #2 > > > Processor #3 > > > Processor #4 > > > Processor #5 > > > Processor #6 > > > Processor #7 > > > Processor #8 > > > Processor #9 > > > Processor #10 > > > Processor #11 > > > Bus #0 is PCI =20 > > > Bus #1 is ISA =20 > > > IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 09 > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0b > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 10, APIC ID 0, APIC INT 0b > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 14, APIC ID 0, APIC INT 0a > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 18, APIC ID 0, APIC INT 0a > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 00, APIC ID 0, APIC INT 02 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 01, APIC ID 0, APIC INT 01 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 03, APIC ID 0, APIC INT 03 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 04, APIC ID 0, APIC INT 04 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 06, APIC ID 0, APIC INT 06 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 07, APIC ID 0, APIC INT 07 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 08, APIC ID 0, APIC INT 08 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0c, APIC ID 0, APIC INT 0c > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0d, APIC ID 0, APIC INT 0d > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0e, APIC ID 0, APIC INT 0e > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0f, APIC ID 0, APIC INT 0f > > > Lint: type 3, pol 0, trig 0, bus 01, IRQ 00, APIC ID 0, APIC LINT 00 > > > Lint: type 1, pol 0, trig 0, bus 01, IRQ 00, APIC ID ff, APIC LINT 01 > > > Processors: 12 > > > smpboot: Allowing 12 CPUs, 0 hotplug CPUs > > > mapped IOAPIC to ffffffffff5fc000 (fec00000) > > > e820: [mem 0xc0000000-0xfeffbfff] available for PCI devices > > > clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff= , max_idle_ns: 7645519600211568 ns > > > setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:12 nr_node_ids= :1 > > > PERCPU: Embedded 31 pages/cpu @ffff8800bfa00000 s87640 r8192 d31144 u= 131072 > > > pcpu-alloc: s87640 r8192 d31144 u131072 alloc=3D1*2097152 > > > pcpu-alloc: [0] 00 01 02 03 04 05 06 07 08 09 10 11 -- -- -- --=20 > > > Built 1 zonelists in Zone order, mobility grouping on. Total pages: = 774021 > > > Kernel command line: hung_task_panic=3D1 earlyprintk=3DttyS0,115200 d= ebug apic=3Ddebug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=3D100= panic=3D-1 softlockup_panic=3D1 nmi_watchdog=3Dpanic oops=3Dpanic console= =3DttyS0,115200 console=3Dtty0 earlyprintk=3DttyS0 ignore_loglevel ftrace_d= ump_on_oops vga=3Dnormal root=3D/dev/vda1 rw > > > sysrq: sysrq always enabled. > > > log_buf_len individual max cpu contribution: 2097152 bytes > > > log_buf_len total cpu_extra contributions: 23068672 bytes > > > log_buf_len min size: 8388608 bytes > > > log_buf_len: 33554432 bytes > > > early log buf free: 8380096(99%) > > > PID hash table entries: 4096 (order: 3, 32768 bytes) > > > Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) > > > Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) > > > Memory: 2911172K/3145320K available (4237K kernel code, 721K rwdata, = 1988K rodata, 936K init, 8608K bss, 234148K reserved, 0K cma-reserved) > > > SLUB: HWalign=3D64, Order=3D0-3, MinObjects=3D0, CPUs=3D12, Nodes=3D1 > > > Hierarchical RCU implementation. > > > Build-time adjustment of leaf fanout to 64. > > > RCU restricting CPUs from NR_CPUS=3D16 to nr_cpu_ids=3D12. > > > RCU: Adjusting geometry for rcu_fanout_leaf=3D64, nr_cpu_ids=3D12 > > > NR_IRQS:4352 nr_irqs:136 16 > > > Console: colour VGA+ 80x25 > > > console [tty0] enabled > > > bootconsole [earlyser0] disabled > > > Initializing cgroup subsys cpu > > > Linux version 4.3.0-rc5-mm1-diet-meta+ (barrios@bbox) (gcc version 4.= 8.4 (Ubuntu 4.8.4-2ubuntu1~14.04) ) #1545 SMP Tue Oct 20 08:55:45 KST 2015 > > > Command line: hung_task_panic=3D1 earlyprintk=3DttyS0,115200 debug ap= ic=3Ddebug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=3D100 panic= =3D-1 softlockup_panic=3D1 nmi_watchdog=3Dpanic oops=3Dpanic console=3DttyS= 0,115200 console=3Dtty0 earlyprintk=3DttyS0 ignore_loglevel ftrace_dump_on_= oops vga=3Dnormal root=3D/dev/vda1 rw > > > KERNEL supported cpus: > > > Intel GenuineIntel > > > x86/fpu: Legacy x87 FPU detected. > > > x86/fpu: Using 'lazy' FPU context switches. > > > e820: BIOS-provided physical RAM map: > > > BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable > > > BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved > > > BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved > > > BIOS-e820: [mem 0x0000000000100000-0x00000000bfffbfff] usable > > > BIOS-e820: [mem 0x00000000bfffc000-0x00000000bfffffff] reserved > > > BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved > > > BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved > > > bootconsole [earlyser0] enabled > > > debug: ignoring loglevel setting. > > > NX (Execute Disable) protection: active > > > SMBIOS 2.4 present. > > > DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > > > e820: update [mem 0x00000000-0x00000fff] usable =3D=3D> reserved > > > e820: remove [mem 0x000a0000-0x000fffff] usable > > > e820: last_pfn =3D 0xbfffc max_arch_pfn =3D 0x400000000 > > > MTRR default type: write-back > > > MTRR fixed ranges enabled: > > > 00000-9FFFF write-back > > > A0000-BFFFF uncachable > > > C0000-FFFFF write-protect > > > MTRR variable ranges enabled: > > > 0 base 00C0000000 mask FFC0000000 uncachable > > > 1 disabled > > > 2 disabled > > > 3 disabled > > > 4 disabled > > > 5 disabled > > > 6 disabled > > > 7 disabled > > > x86/PAT: PAT not supported by CPU. > > > Scan for SMP in [mem 0x00000000-0x000003ff] > > > Scan for SMP in [mem 0x0009fc00-0x0009ffff] > > > Scan for SMP in [mem 0x000f0000-0x000fffff] > > > found SMP MP-table at [mem 0x000f0a70-0x000f0a7f] mapped at [ffff8800= 000f0a70] > > > mpc: f0a80-f0c44 > > > Scanning 1 areas for low memory corruption > > > Base memory trampoline at [ffff880000099000] 99000 size 24576 > > > init_memory_mapping: [mem 0x00000000-0x000fffff] > > > [mem 0x00000000-0x000fffff] page 4k > > > BRK [0x0220e000, 0x0220efff] PGTABLE > > > BRK [0x0220f000, 0x0220ffff] PGTABLE > > > BRK [0x02210000, 0x02210fff] PGTABLE > > > init_memory_mapping: [mem 0xbfc00000-0xbfdfffff] > > > [mem 0xbfc00000-0xbfdfffff] page 2M > > > BRK [0x02211000, 0x02211fff] PGTABLE > > > init_memory_mapping: [mem 0xa0000000-0xbfbfffff] > > > [mem 0xa0000000-0xbfbfffff] page 2M > > > init_memory_mapping: [mem 0x80000000-0x9fffffff] > > > [mem 0x80000000-0x9fffffff] page 2M > > > init_memory_mapping: [mem 0x00100000-0x7fffffff] > > > [mem 0x00100000-0x001fffff] page 4k > > > [mem 0x00200000-0x7fffffff] page 2M > > > init_memory_mapping: [mem 0xbfe00000-0xbfffbfff] > > > [mem 0xbfe00000-0xbfffbfff] page 4k > > > BRK [0x02212000, 0x02212fff] PGTABLE > > > RAMDISK: [mem 0x7851a000-0x7fffffff] > > > [ffffea0000000000-ffffea0002ffffff] PMD -> [ffff8800bc400000-ffff880= 0bf3fffff] on node 0 > > > Zone ranges: > > > DMA [mem 0x0000000000001000-0x0000000000ffffff] > > > DMA32 [mem 0x0000000001000000-0x00000000bfffbfff] > > > Normal empty > > > Movable zone start for each node > > > Early memory node ranges > > > node 0: [mem 0x0000000000001000-0x000000000009efff] > > > node 0: [mem 0x0000000000100000-0x00000000bfffbfff] > > > Initmem setup node 0 [mem 0x0000000000001000-0x00000000bfffbfff] > > > On node 0 totalpages: 786330 > > > DMA zone: 64 pages used for memmap > > > DMA zone: 21 pages reserved > > > DMA zone: 3998 pages, LIFO batch:0 > > > DMA32 zone: 12224 pages used for memmap > > > DMA32 zone: 782332 pages, LIFO batch:31 > > > Intel MultiProcessor Specification v1.4 > > > mpc: f0a80-f0c44 > > > MPTABLE: OEM ID: BOCHSCPU > > > MPTABLE: Product ID: 0.1 =20 > > > MPTABLE: APIC at: 0xFEE00000 > > > mapped APIC to ffffffffff5fd000 ( fee00000) > > > Processor #0 (Bootup-CPU) > > > Processor #1 > > > Processor #2 > > > Processor #3 > > > Processor #4 > > > Processor #5 > > > Processor #6 > > > Processor #7 > > > Processor #8 > > > Processor #9 > > > Processor #10 > > > Processor #11 > > > Bus #0 is PCI =20 > > > Bus #1 is ISA =20 > > > IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 09 > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0b > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 10, APIC ID 0, APIC INT 0b > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 14, APIC ID 0, APIC INT 0a > > > Int: type 0, pol 1, trig 0, bus 00, IRQ 18, APIC ID 0, APIC INT 0a > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 00, APIC ID 0, APIC INT 02 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 01, APIC ID 0, APIC INT 01 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 03, APIC ID 0, APIC INT 03 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 04, APIC ID 0, APIC INT 04 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 06, APIC ID 0, APIC INT 06 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 07, APIC ID 0, APIC INT 07 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 08, APIC ID 0, APIC INT 08 > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0c, APIC ID 0, APIC INT 0c > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0d, APIC ID 0, APIC INT 0d > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0e, APIC ID 0, APIC INT 0e > > > Int: type 0, pol 0, trig 0, bus 01, IRQ 0f, APIC ID 0, APIC INT 0f > > > Lint: type 3, pol 0, trig 0, bus 01, IRQ 00, APIC ID 0, APIC LINT 00 > > > Lint: type 1, pol 0, trig 0, bus 01, IRQ 00, APIC ID ff, APIC LINT 01 > > > Processors: 12 > > > smpboot: Allowing 12 CPUs, 0 hotplug CPUs > > > mapped IOAPIC to ffffffffff5fc000 (fec00000) > > > e820: [mem 0xc0000000-0xfeffbfff] available for PCI devices > > > clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff= , max_idle_ns: 7645519600211568 ns > > > setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:12 nr_node_ids= :1 > > > PERCPU: Embedded 31 pages/cpu @ffff8800bfa00000 s87640 r8192 d31144 u= 131072 > > > pcpu-alloc: s87640 r8192 d31144 u131072 alloc=3D1*2097152 > > > pcpu-alloc: [0] 00 01 02 03 04 05 06 07 08 09 10 11 -- -- -- --=20 > > > Built 1 zonelists in Zone order, mobility grouping on. Total pages: = 774021 > > > Kernel command line: hung_task_panic=3D1 earlyprintk=3DttyS0,115200 d= ebug apic=3Ddebug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=3D100= panic=3D-1 softlockup_panic=3D1 nmi_watchdog=3Dpanic oops=3Dpanic console= =3DttyS0,115200 console=3Dtty0 earlyprintk=3DttyS0 ignore_loglevel ftrace_d= ump_on_oops vga=3Dnormal root=3D/dev/vda1 rw > > > sysrq: sysrq always enabled. > > > log_buf_len individual max cpu contribution: 2097152 bytes > > > log_buf_len total cpu_extra contributions: 23068672 bytes > > > log_buf_len min size: 8388608 bytes > > > log_buf_len: 33554432 bytes > > > early log buf free: 8380096(99%) > > > PID hash table entries: 4096 (order: 3, 32768 bytes) > > > Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) > > > Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) > > > Memory: 2911172K/3145320K available (4237K kernel code, 721K rwdata, = 1988K rodata, 936K init, 8608K bss, 234148K reserved, 0K cma-reserved) > > > SLUB: HWalign=3D64, Order=3D0-3, MinObjects=3D0, CPUs=3D12, Nodes=3D1 > > > Hierarchical RCU implementation. > > > Build-time adjustment of leaf fanout to 64. > > > RCU restricting CPUs from NR_CPUS=3D16 to nr_cpu_ids=3D12. > > > RCU: Adjusting geometry for rcu_fanout_leaf=3D64, nr_cpu_ids=3D12 > > > NR_IRQS:4352 nr_irqs:136 16 > > > Console: colour VGA+ 80x25 > > > console [tty0] enabled > > > bootconsole [earlyser0] disabled > > > console [ttyS0] enabled > > > tsc: Fast TSC calibration using PIT > > > tsc: Detected 3199.926 MHz processor > > > Calibrating delay loop (skipped), value calculated using timer freque= ncy.. 6399.85 BogoMIPS (lpj=3D12799704) > > > pid_max: default: 32768 minimum: 301 > > > Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) > > > Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) > > > Initializing cgroup subsys memory > > > Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 > > > Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 > > > Freeing SMP alternatives memory: 20K (ffffffff819a0000 - ffffffff819a= 5000) > > > ftrace: allocating 16664 entries in 66 pages > > > Switched APIC routing to physical flat. > > > enabled ExtINT on CPU#0 > > > ENABLING IO-APIC IRQs > > > init IO_APIC IRQs > > > apic 0 pin 0 not connected > > > IOAPIC[0]: Set routing entry (0-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-2 -> 0x30 -> IRQ 0 Mode:0 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-3 -> 0x33 -> IRQ 3 Mode:0 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 De= st:0) > > > apic 0 pin 5 not connected > > > IOAPIC[0]: Set routing entry (0-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-9 -> 0x39 -> IRQ 9 Mode:1 Active:0 De= st:0) > > > IOAPIC[0]: Set routing entry (0-10 -> 0x3a -> IRQ 10 Mode:1 Active:0 = Dest:0) > > > IOAPIC[0]: Set routing entry (0-11 -> 0x3b -> IRQ 11 Mode:1 Active:0 = Dest:0) > > > IOAPIC[0]: Set routing entry (0-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 = Dest:0) > > > IOAPIC[0]: Set routing entry (0-13 -> 0x3d -> IRQ 13 Mode:0 Active:0 = Dest:0) > > > IOAPIC[0]: Set routing entry (0-14 -> 0x3e -> IRQ 14 Mode:0 Active:0 = Dest:0) > > > IOAPIC[0]: Set routing entry (0-15 -> 0x3f -> IRQ 15 Mode:0 Active:0 = Dest:0) > > > apic 0 pin 16 not connected > > > apic 0 pin 17 not connected > > > apic 0 pin 18 not connected > > > apic 0 pin 19 not connected > > > apic 0 pin 20 not connected > > > apic 0 pin 21 not connected > > > apic 0 pin 22 not connected > > > apic 0 pin 23 not connected > > > ..TIMER: vector=3D0x30 apic1=3D0 pin1=3D2 apic2=3D-1 pin2=3D-1 > > > Using local APIC timer interrupts. > > > calibrating APIC timer ... > > > ... lapic delta =3D 6251755 > > > ..... delta 6251755 > > > ..... mult: 268510832 > > > ..... calibration result: 4001123 > > > ..... CPU clock speed is 3200.3592 MHz. > > > ..... host bus clock speed is 1000.1123 MHz. > > > ... verify APIC timer > > > ... jiffies delta =3D 25 > > > ... jiffies result ok > > > smpboot: CPU0: Intel QEMU Virtual CPU version 2.0.0 (family: 0x6, mod= el: 0x6, stepping: 0x3) > > > Performance Events: Broken PMU hardware detected, using software even= ts only. > > > Failed to access perfctr msr (MSR c2 is 0) > > > x86: Booting SMP configuration: > > > .... node #0, CPUs: #1 > > > masked ExtINT on CPU#1 > > > #2 > > > masked ExtINT on CPU#2 > > > #3 > > > masked ExtINT on CPU#3 > > > #4 > > > masked ExtINT on CPU#4 > > > #5 > > > masked ExtINT on CPU#5 > > > #6 > > > masked ExtINT on CPU#6 > > > #7 > > > masked ExtINT on CPU#7 > > > #8 > > > masked ExtINT on CPU#8 > > > #9 > > > masked ExtINT on CPU#9 > > > #10 > > > masked ExtINT on CPU#10 > > > #11 > > > masked ExtINT on CPU#11 > > > x86: Booted up 1 node, 12 CPUs > > > smpboot: Total of 12 processors activated (76818.13 BogoMIPS) > > > devtmpfs: initialized > > > clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_id= le_ns: 7645041785100000 ns > > > NET: Registered protocol family 16 > > > PCI: Using configuration type 1 for base access > > > vgaarb: loaded > > > SCSI subsystem initialized > > > libata version 3.00 loaded. > > > PCI: Probing PCI hardware > > > PCI: root bus 00: using default resources > > > PCI: Probing PCI hardware (bus 00) > > > PCI host bridge to bus 0000:00 > > > pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > > > pci_bus 0000:00: root bus resource [mem 0x00000000-0xffffffffff] > > > pci_bus 0000:00: No busn resource found for root bus, will use [bus 0= 0-ff] > > > pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 > > > pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 > > > pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 > > > pci 0000:00:01.1: reg 0x20: [io 0xc0c0-0xc0cf] > > > pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] > > > pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] > > > pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] > > > pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] > > > pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 > > > pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000 > > > pci 0000:00:02.0: reg 0x10: [mem 0xfc000000-0xfdffffff pref] > > > pci 0000:00:02.0: reg 0x14: [mem 0xfebd0000-0xfebd0fff] > > > pci 0000:00:02.0: reg 0x30: [mem 0xfebc0000-0xfebcffff pref] > > > vgaarb: setting as boot device: PCI:0000:00:02.0 > > > vgaarb: device added: PCI:0000:00:02.0,decodes=3Dio+mem,owns=3Dio+mem= ,locks=3Dnone > > > pci 0000:00:03.0: [1af4:1000] type 00 class 0x020000 > > > pci 0000:00:03.0: reg 0x10: [io 0xc080-0xc09f] > > > pci 0000:00:03.0: reg 0x14: [mem 0xfebd1000-0xfebd1fff] > > > pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] > > > pci 0000:00:04.0: [1af4:1002] type 00 class 0x00ff00 > > > pci 0000:00:04.0: reg 0x10: [io 0xc0a0-0xc0bf] > > > pci 0000:00:05.0: [1af4:1001] type 00 class 0x010000 > > > pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc03f] > > > pci 0000:00:05.0: reg 0x14: [mem 0xfebd2000-0xfebd2fff] > > > pci 0000:00:06.0: [1af4:1001] type 00 class 0x010000 > > > pci 0000:00:06.0: reg 0x10: [io 0xc040-0xc07f] > > > pci 0000:00:06.0: reg 0x14: [mem 0xfebd3000-0xfebd3fff] > > > pci 0000:00:07.0: [8086:25ab] type 00 class 0x088000 > > > pci 0000:00:07.0: reg 0x10: [mem 0xfebd4000-0xfebd400f] > > > pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00 > > > pci 0000:00:01.0: PIIX/ICH IRQ router [8086:7000] > > > PCI: pci_cache_line_size set to 64 bytes > > > e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff] > > > e820: reserve RAM buffer [mem 0xbfffc000-0xbfffffff] > > > clocksource: Switched to clocksource refined-jiffies > > > pci_bus 0000:00: resource 4 [io 0x0000-0xffff] > > > pci_bus 0000:00: resource 5 [mem 0x00000000-0xffffffffff] > > > NET: Registered protocol family 2 > > > TCP established hash table entries: 32768 (order: 6, 262144 bytes) > > > TCP bind hash table entries: 32768 (order: 7, 524288 bytes) > > > TCP: Hash tables configured (established 32768 bind 32768) > > > UDP hash table entries: 2048 (order: 4, 65536 bytes) > > > UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) > > > NET: Registered protocol family 1 > > > Trying to unpack rootfs image as initramfs... > > > Freeing initrd memory: 125848K (ffff88007851a000 - ffff880080000000) > > > platform rtc_cmos: registered platform RTC device (no PNP device foun= d) > > > Scanning for low memory corruption every 60 seconds > > > futex hash table entries: 4096 (order: 6, 262144 bytes) > > > HugeTLB registered 2 MB page size, pre-allocated 0 pages > > > fuse init (API version 7.23) > > > 9p: Installing v9fs 9p2000 file system support > > > cryptomgr_test (74) used greatest stack depth: 15352 bytes left > > > cryptomgr_test (82) used greatest stack depth: 15136 bytes left > > > Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) > > > io scheduler noop registered > > > io scheduler deadline registered > > > io scheduler cfq registered (default) > > > querying PCI -> IRQ mapping bus:0, slot:3, pin:0. > > > virtio-pci 0000:00:03.0: PCI->APIC IRQ transform: INT A -> IRQ 11 > > > virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver > > > querying PCI -> IRQ mapping bus:0, slot:4, pin:0. > > > virtio-pci 0000:00:04.0: PCI->APIC IRQ transform: INT A -> IRQ 11 > > > virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver > > > querying PCI -> IRQ mapping bus:0, slot:5, pin:0. > > > virtio-pci 0000:00:05.0: PCI->APIC IRQ transform: INT A -> IRQ 10 > > > virtio-pci 0000:00:05.0: virtio_pci: leaving for legacy driver > > > querying PCI -> IRQ mapping bus:0, slot:6, pin:0. > > > virtio-pci 0000:00:06.0: PCI->APIC IRQ transform: INT A -> IRQ 10 > > > virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver > > > Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled > > > serial8250: ttyS0 at I/O 0x3f8 (irq =3D 4, base_baud =3D 115200) is a= 16550A > > > Linux agpgart interface v0.103 > > > brd: module loaded > > > loop: module loaded > > > vda: vda1 vda2 < vda5 > > > > zram: Added device: zram0 > > > libphy: Fixed MDIO Bus: probed > > > tun: Universal TUN/TAP device driver, 1.6 > > > tun: (C) 1999-2004 Max Krasnyansky > > > serio: i8042 KBD port at 0x60,0x64 irq 1 > > > serio: i8042 AUX port at 0x60,0x64 irq 12 > > > mousedev: PS/2 mouse device common for all mice > > > rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 > > > rtc_cmos rtc_cmos: alarms up to one day, 114 bytes nvram > > > device-mapper: ioctl: 4.33.0-ioctl (2015-8-18) initialised: dm-devel@= redhat.com > > > device-mapper: cache cleaner: version 1.0.0 loaded > > > NET: Registered protocol family 17 > > > 9pnet: Installing 9P2000 support > > > ... APIC ID: 00000000 (0) > > > ... APIC VERSION: 01050014 > > > 0000000000000000000000000000000000000000000000000000000000000000 > > > 000000000e000000000000000000000000000000000000000000000000000000 > > > 0000000000020000000000000000000000000000000000000000000000008000 > > >=20 > > > number of MP IRQ sources: 16. > > > number of IO-APIC #0 registers: 24. > > > testing the IO APIC....................... > > > IO APIC #0...... > > > .... register #00: 00000000 > > > ....... : physical APIC id: 00 > > > ....... : Delivery Type: 0 > > > ....... : LTS : 0 > > > .... register #01: 00170011 > > > ....... : max redirection entries: 17 > > > ....... : PRQ implemented: 0 > > > ....... : IO APIC version: 11 > > > .... register #02: 00000000 > > > ....... : arbitration: 00 > > > .... IRQ redirection table: > > > IOAPIC 0: > > > pin00, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin01, enabled , edge , high, V(31), IRR(0), S(0), physical, D(00), = M(0) > > > pin02, enabled , edge , high, V(30), IRR(0), S(0), physical, D(00), = M(0) > > > pin03, enabled , edge , high, V(33), IRR(0), S(0), physical, D(00), = M(0) > > > pin04, disabled, edge , high, V(34), IRR(0), S(0), physical, D(00), = M(0) > > > pin05, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin06, enabled , edge , high, V(36), IRR(0), S(0), physical, D(00), = M(0) > > > pin07, enabled , edge , high, V(37), IRR(0), S(0), physical, D(00), = M(0) > > > pin08, enabled , edge , high, V(38), IRR(0), S(0), physical, D(00), = M(0) > > > pin09, disabled, level, high, V(39), IRR(0), S(0), physical, D(00), = M(0) > > > pin0a, enabled , level, high, V(3A), IRR(0), S(0), physical, D(00), = M(0) > > > pin0b, enabled , level, high, V(3B), IRR(0), S(0), physical, D(00), = M(0) > > > pin0c, enabled , edge , high, V(3C), IRR(0), S(0), physical, D(00), = M(0) > > > pin0d, enabled , edge , high, V(3D), IRR(0), S(0), physical, D(00), = M(0) > > > pin0e, enabled , edge , high, V(3E), IRR(0), S(0), physical, D(00), = M(0) > > > pin0f, enabled , edge , high, V(3F), IRR(0), S(0), physical, D(00), = M(0) > > > pin10, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin11, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin12, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin13, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin14, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin15, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin16, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > pin17, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), = M(0) > > > IRQ to pin mappings: > > > IRQ0 -> 0:2 > > > IRQ1 -> 0:1 > > > IRQ3 -> 0:3 > > > IRQ4 -> 0:4 > > > IRQ6 -> 0:6 > > > IRQ7 -> 0:7 > > > IRQ8 -> 0:8 > > > IRQ9 -> 0:9 > > > IRQ10 -> 0:10 > > > IRQ11 -> 0:11 > > > IRQ12 -> 0:12 > > > IRQ13 -> 0:13 > > > IRQ14 -> 0:14 > > > IRQ15 -> 0:15 > > > .................................... done. > > > rtc_cmos rtc_cmos: setting system clock to 2015-10-20 08:57:55 UTC (1= 445331475) > > > input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0= /input/input0 > > > Freeing unused kernel memory: 936K (ffffffff818b6000 - ffffffff819a00= 00) > > > Write protecting the kernel read-only data: 8192k > > > Freeing unused kernel memory: 1900K (ffff880001425000 - ffff880001600= 000) > > > Freeing unused kernel memory: 60K (ffff8800017f1000 - ffff88000180000= 0) > > > busybox (117) used greatest stack depth: 14480 bytes left > > > exe (124) used greatest stack depth: 14024 bytes left > > > udevd[140]: starting version 175 > > > blkid (151) used greatest stack depth: 13920 bytes left > > > modprobe (242) used greatest stack depth: 13784 bytes left > > > clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2e200418439,= max_idle_ns: 440795220848 ns > > > clocksource: Switched to clocksource tsc > > > EXT4-fs (vda1): recovery complete > > > EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts: (nul= l) > > > exe (262) used greatest stack depth: 13032 bytes left > > > random: init urandom read with 9 bits of entropy available > > > init: plymouth-upstart-bridge main process (279) terminated with stat= us 1 > > > init: plymouth-upstart-bridge main process ended, respawning > > > init: plymouth-upstart-bridge main process (289) terminated with stat= us 1 > > > init: plymouth-upstart-bridge main process ended, respawning > > > init: plymouth-upstart-bridge main process (293) terminated with stat= us 1 > > > init: plymouth-upstart-bridge main process ended, respawning > > > init: ureadahead main process (282) terminated with status 5 > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > systemd-udevd[423]: starting version 204 > > > EXT4-fs (vdb): mounted filesystem with ordered data mode. Opts: error= s=3Dremount-ro > > > * Stopping Send an event to indicate plymouth is up=1B[74G[ OK ] > > > * Starting Mount filesystems on boot=1B[74G[ OK ] > > > * Starting Signal sysvinit that the rootfs is mounted=1B[74G[ OK ] > > > * Starting Populate /dev filesystem=1B[74G[ OK ] > > > * Starting Populate and link to /run filesystem=1B[74G[ OK ] > > > * Stopping Populate /dev filesystem=1B[74G[ OK ] > > > * Stopping Populate and link to /run filesystem=1B[74G[ OK ] > > > * Starting Clean /tmp directory=1B[74G[ OK ] > > > * Stopping Track if upstart is running in a container=1B[74G[ OK ] > > > * Stopping Clean /tmp directory=1B[74G[ OK ] > > > * Starting Initialize or finalize resolvconf=1B[74G[ OK ] > > > * Starting set console keymap=1B[74G[ OK ] > > > * Starting Signal sysvinit that virtual filesystems are mounted=1B[7= 4G[ OK ] > > > * Starting Signal sysvinit that virtual filesystems are mounted=1B[7= 4G[ OK ] > > > * Starting Bridge udev events into upstart=1B[74G[ OK ] > > > * Starting Signal sysvinit that remote filesystems are mounted=1B[74= G[ OK ] > > > * Stopping set console keymap=1B[74G[ OK ] > > > * Starting device node and kernel event manager=1B[74G[ OK ] > > > * Starting load modules from /etc/modules=1B[74G[ OK ] > > > * Starting cold plug devices=1B[74G[ OK ] > > > * Starting log initial device creation=1B[74G[ OK ] > > > * Stopping Read required files in advance (for other mountpoints)=1B= [74G[ OK ] > > > * Stopping load modules from /etc/modules=1B[74G[ OK ] > > > * Starting Signal sysvinit that local filesystems are mounted=1B[74G= [ OK ] > > > * Starting flush early job output to logs=1B[74G[ OK ] > > > * Stopping Mount filesystems on boot=1B[74G[ OK ] > > > * Stopping flush early job output to logs=1B[74G[ OK ] > > > * Starting D-Bus system message bus=1B[74G[ OK ] > > > * Starting SystemD login management service=1B[74G[ OK ] > > > * Starting system logging daemon=1B[74G[ OK ] > > > * Stopping cold plug devices=1B[74G[ OK ] > > > * Starting Uncomplicated firewall=1B[74G[ OK ] > > > * Starting configure network device security=1B[74G[ OK ] > > > * Stopping log initial device creation=1B[74G[ OK ] > > > * Starting configure network device security=1B[74G[ OK ] > > > * Starting save udev log and update rules=1B[74G[ OK ] > > > * Starting set console font=1B[74G[ OK ] > > > * Stopping save udev log and update rules=1B[74G[ OK ] > > > * Starting Mount network filesystems=1B[74G[ OK ] > > > * Starting Failsafe Boot Delay=1B[74G[ OK ] > > > * Starting configure network device security=1B[74G[ OK ] > > > * Stopping Mount network filesystems=1B[74G[ OK ] > > > * Starting configure network device=1B[74G[ OK ] > > > * Starting configure network device=1B[74G[ OK ] > > > * Starting Bridge file events into upstart=1B[74G[ OK ] > > > * Starting Bridge socket events into upstart=1B[74G[ OK ] > > > * Stopping set console font=1B[74G[ OK ] > > > * Starting userspace bootsplash=1B[74G[ OK ] > > > * Starting Send an event to indicate plymouth is up=1B[74G[ OK ] > > > * Stopping userspace bootsplash=1B[74G[ OK ] > > > * Stopping Send an event to indicate plymouth is up=1B[74G[ OK ] > > > * Starting Mount network filesystems=1B[74G[ OK ] > > > init: failsafe main process (591) killed by TERM signal > > > * Stopping Failsafe Boot Delay=1B[74G[ OK ] > > > * Starting System V initialisation compatibility=1B[74G[ OK ] > > > * Stopping Mount network filesystems=1B[74G[ OK ] > > > * Starting configure virtual network devices=1B[74G[ OK ] > > > * Stopping System V initialisation compatibility=1B[74G[ OK ] > > > * Starting System V runlevel compatibility=1B[74G[ OK ] > > > * Starting deferred execution scheduler=1B[74G[ OK ] > > > * Starting regular background program processing daemon=1B[74G[ OK ] > > > * Starting ACPI daemon=1B[74G[ OK ] > > > * Starting save kernel messages=1B[74G[ OK ] > > > * Starting CPU interrupts balancing daemon=1B[74G[ OK ] > > > * Stopping save kernel messages=1B[74G[ OK ] > > > * Starting OpenSSH server=1B[74G[ OK ] > > > * Starting automatic crash report generation=1B[74G[ OK ] > > > * Restoring resolver state... =1B[80G =0D=1B[74G[ OK ] > > > eth0 Link encap:Ethernet HWaddr 52:54:79:12:34:57 inet addr:192.168.0= =2E21 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST= MTU:1500 Metric:1 RX packets:34 errors:0 dropped:24 overruns:0 frame:0 TX = packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1= 000 RX bytes:5780 (5.7 KB) TX bytes:800 (800.0 B) lo Link encap:Local Loopb= ack inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric= :1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0= dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B= ) TX bytes:0 (0.0 B) > > > * Stopping System V runlevel compatibility=1B[74G[ OK ] > > > init: plymouth-upstart-bridge main process ended, respawning > > > sh (1429) used greatest stack depth: 11752 bytes left > > > sh (1454) used greatest stack depth: 11528 bytes left > > > random: nonblocking pool is initialized > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > sh (2785) used greatest stack depth: 11480 bytes left > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > Adding 4191228k swap on /dev/vda5. Priority:-1 extents:1 across:4191= 228k FS > > > BUG: unable to handle kernel NULL pointer dereference at 000000000000= 0008 > > > IP: [] down_read_trylock+0x9/0x30 > > > PGD 0=20 > > > Oops: 0000 [#1] SMP=20 > > > Dumping ftrace buffer: > > > (ftrace buffer empty) > > > Modules linked in: > > > CPU: 1 PID: 26445 Comm: sh Not tainted 4.3.0-rc5-mm1-diet-meta+ #1545 > > > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/= 01/2011 > > > task: ffff8800b9af3480 ti: ffff88007fea0000 task.ti: ffff88007fea0000 > > > RIP: 0010:[] [] down_read_tryloc= k+0x9/0x30 > > > RSP: 0018:ffff88007fea3648 EFLAGS: 00010202 > > > RAX: 0000000000000001 RBX: ffffea0002324900 RCX: ffff88007fea37e8 > > > RDX: 0000000000000000 RSI: ffff88007fea36e8 RDI: 0000000000000008 > > > RBP: ffff88007fea3648 R08: ffffffff818446a0 R09: ffff8800b9af4c80 > > > R10: 0000000000000216 R11: 0000000000000001 R12: ffff88007f58d6e1 > > > R13: ffff88007f58d6e0 R14: 0000000000000008 R15: 0000000000000001 > > > FS: 00007f0993e78740(0000) GS:ffff8800bfa20000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > > CR2: 0000000000000008 CR3: 000000007edee000 CR4: 00000000000006a0 > > > Stack: > > > ffff88007fea3678 ffffffff81124ff0 ffffea0002324900 ffff88007fea36e8 > > > ffff88009ffe8400 0000000000000000 ffff88007fea36c0 ffffffff81125733 > > > ffff8800bfa34540 ffffffff8105dc9d ffffea0002324900 ffff88007fea37e8 > > > Call Trace: > > > [] page_lock_anon_vma_read+0x60/0x180 > > > [] rmap_walk+0x1b3/0x3f0 > > > [] ? finish_task_switch+0x5d/0x1f0 > > > [] page_referenced+0x1a3/0x220 > > > [] ? __page_check_address+0x1a0/0x1a0 > > > [] ? page_get_anon_vma+0xd0/0xd0 > > > [] ? anon_vma_ctor+0x40/0x40 > > > [] shrink_page_list+0x5ab/0xde0 > > > [] shrink_inactive_list+0x18c/0x4b0 > > > [] shrink_lruvec+0x59d/0x740 > > > [] shrink_zone+0x90/0x250 > > > [] do_try_to_free_pages+0x12d/0x3b0 > > > [] try_to_free_mem_cgroup_pages+0x9d/0x120 > > > [] try_charge+0x163/0x700 > > > [] mem_cgroup_do_precharge+0x54/0x70 > > > [] mem_cgroup_can_attach+0x175/0x1b0 > > > [] ? kernfs_iattrs.isra.6+0x37/0xd0 > > > [] ? get_mctgt_type+0x320/0x320 > > > [] cgroup_migrate+0x149/0x440 > > > [] cgroup_attach_task+0x7c/0xe0 > > > [] __cgroup_procs_write.isra.33+0x1d4/0x2b0 > > > [] cgroup_tasks_write+0x10/0x20 > > > [] cgroup_file_write+0x38/0xf0 > > > [] kernfs_fop_write+0x11d/0x170 > > > [] __vfs_write+0x28/0xe0 > > > [] ? __fd_install+0x24/0xc0 > > > [] ? percpu_down_read+0x21/0x50 > > > [] vfs_write+0xa1/0x170 > > > [] SyS_write+0x46/0xa0 > > > [] entry_SYSCALL_64_fastpath+0x12/0x6a > > > Code: 5e 82 3a 00 48 83 c4 08 5b 5d c3 48 89 45 f0 e8 9b 6a 3a 00 48 = 8b 45 f0 eb df 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 <48> 8b 0= 7 48 89 c2 48 83 c2 01 7e 07 f0 48 0f b1 17 75 f0 48 f7=20 > > > RIP [] down_read_trylock+0x9/0x30 > > > RSP > > > CR2: 0000000000000008 > > > BUG: unable to handle kernel ---[ end trace e81a82c8122b447d ]--- > > > Kernel panic - not syncing: Fatal exception > > >=20 > > > NULL pointer dereference at 0000000000000008 > > > IP: [] down_read_trylock+0x9/0x30 > > > PGD 0=20 > > > Oops: 0000 [#2] SMP=20 > > > Dumping ftrace buffer: > > > (ftrace buffer empty) > > > Modules linked in: > > > CPU: 10 PID: 59 Comm: khugepaged Tainted: G D 4.3.0-rc5-= mm1-diet-meta+ #1545 > > > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/= 01/2011 > > > task: ffff8800b9851a40 ti: ffff8800b985c000 task.ti: ffff8800b985c000 > > > RIP: 0010:[] [] down_read_tryloc= k+0x9/0x30 > > > RSP: 0018:ffff8800b985f778 EFLAGS: 00010202 > > > RAX: 0000000000000001 RBX: ffffea0002321800 RCX: ffff8800b985f918 > > > RDX: 0000000000000000 RSI: ffff8800b985f818 RDI: 0000000000000008 > > > RBP: ffff8800b985f778 R08: ffffffff818446a0 R09: ffff8800b9853240 > > > R10: 000000000000ba03 R11: 0000000000000001 R12: ffff88007f58d6e1 > > > R13: ffff88007f58d6e0 R14: 0000000000000008 R15: 0000000000000001 > > > FS: 0000000000000000(0000) GS:ffff8800bfb40000(0000) knlGS:000000000= 0000000 > > > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > > CR2: 0000000000000008 CR3: 0000000001808000 CR4: 00000000000006a0 > > > Stack: > > > ffff8800b985f7a8 ffffffff81124ff0 ffffea0002321800 ffff8800b985f818 > > > ffff88009ffe8400 0000000000000000 ffff8800b985f7f0 ffffffff81125733 > > > ffff8800bfb54540 ffffffff8105dc9d ffffea0002321800 ffff8800b985f918 > > > Call Trace: > > > [] page_lock_anon_vma_read+0x60/0x180 > > > [] rmap_walk+0x1b3/0x3f0 > > > [] ? finish_task_switch+0x5d/0x1f0 > > > [] page_referenced+0x1a3/0x220 > > > [] ? __page_check_address+0x1a0/0x1a0 > > > [] ? page_get_anon_vma+0xd0/0xd0 > > > [] ? anon_vma_ctor+0x40/0x40 > > > [] shrink_page_list+0x5ab/0xde0 > > > [] shrink_inactive_list+0x18c/0x4b0 > > > [] shrink_lruvec+0x59d/0x740 > > > [] shrink_zone+0x90/0x250 > > > [] do_try_to_free_pages+0x12d/0x3b0 > > > [] try_to_free_mem_cgroup_pages+0x9d/0x120 > > > [] try_charge+0x163/0x700 > > > [] ? schedule+0x33/0x80 > > > [] mem_cgroup_try_charge+0x9f/0x1d0 > > > [] khugepaged+0x7cc/0x1ac0 > > > [] ? hrtick_update+0x1/0x70 > > > [] ? prepare_to_wait_event+0xf0/0xf0 > > > [] ? total_mapcount+0x70/0x70 > > > [] kthread+0xc9/0xe0 > > > [] ? kthread_park+0x60/0x60 > > > [] ret_from_fork+0x3f/0x70 > > > [] ? kthread_park+0x60/0x60 > > > Code: 5e 82 3a 00 48 83 c4 08 5b 5d c3 48 89 45 f0 e8 9b 6a 3a 00 48 = 8b 45 f0 eb df 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 <48> 8b 0= 7 48 89 c2 48 83 c2 01 7e 07 f0 48 0f b1 17 75 f0 48 f7=20 > > > RIP [] down_read_trylock+0x9/0x30 > > > RSP > > > CR2: 0000000000000008 > > > ---[ end trace e81a82c8122b447e ]--- > > > Shutting down cpus with NMI > > > Dumping ftrace buffer: > > > (ftrace buffer empty) > > > Kernel Offset: disabled > >=20 >=20 > --=20 > Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org