Re: [Bug]Reiser4-for-4.5.3 mount: page allocation failure

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With earlier kernel (3.10.6) I never had these errors for years and
now I got another one

May 29 03:29:31 krshina3 kernel: reiser4[mount(10525)]:
try_init_format40
(fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:\x0aNOTICE:
Warning: mounting md125 with fatal errors, forcing read-only mount.
May 29 03:29:31 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
May 29 03:29:31 krshina3 kernel: mount: page allocation failure:
order:4, mode:0x26040c0
May 29 03:29:31 krshina3 kernel: CPU: 0 PID: 10525 Comm: mount Not
tainted 4.5.3-gentoo #4
May 29 03:29:31 krshina3 kernel: Hardware name: Gigabyte Technology
Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
May 29 03:29:31 krshina3 kernel:  0000000000000006 ffffffff81219767
0000000000000001 ffff880053b13b30
May 29 03:29:31 krshina3 kernel:  ffffffff810d2ded ffffffff8192ed30
ffff88022e215168 026240c000000010
May 29 03:29:31 krshina3 kernel:  0000000000000000 fffffffffffffff0
0000000000000001 ffffffff8192ed00
May 29 03:29:31 krshina3 kernel: Call Trace:
May 29 03:29:31 krshina3 kernel:  [<ffffffff81219767>] ? dump_stack+0x46/0x59
May 29 03:29:31 krshina3 kernel:  [<ffffffff810d2ded>] ?
warn_alloc_failed+0x113/0x12b
May 29 03:29:31 krshina3 kernel:  [<ffffffff810d5222>] ?
__alloc_pages_nodemask+0x748/0x77e
May 29 03:29:31 krshina3 kernel:  [<ffffffff81095a1a>] ?
console_unlock+0x371/0x3ac
May 29 03:29:31 krshina3 kernel:  [<ffffffff81101401>] ?
cache_alloc_refill+0x27f/0x4c9
May 29 03:29:31 krshina3 kernel:  [<ffffffff81168cb6>] ? reiser4_mount+0xc/0xc
May 29 03:29:31 krshina3 kernel:  [<ffffffff81101142>] ?
kmem_cache_alloc+0x69/0xa9
May 29 03:29:31 krshina3 kernel:  [<ffffffff8115605f>] ?
znodes_tree_init+0x4d/0xe7
May 29 03:29:31 krshina3 kernel:  [<ffffffff8115c458>] ?
reiser4_init_tree+0x3f/0xb2
May 29 03:29:31 krshina3 kernel:  [<ffffffff8118afe5>] ?
init_format_format40+0x37b/0x501
May 29 03:29:31 krshina3 kernel:  [<ffffffff81168d98>] ? fill_super+0xe2/0x1f7
May 29 03:29:31 krshina3 kernel:  [<ffffffff81107d8e>] ? mount_bdev+0x131/0x181
May 29 03:29:31 krshina3 kernel:  [<ffffffff81107f59>] ? mount_fs+0xc/0x80
May 29 03:29:31 krshina3 kernel:  [<ffffffff8111cb6d>] ?
vfs_kern_mount+0x60/0xea
May 29 03:29:31 krshina3 kernel:  [<ffffffff8111e523>] ? do_mount+0x92c/0xa43
May 29 03:29:31 krshina3 kernel:  [<ffffffff811067e0>] ? __fput+0x169/0x17c
May 29 03:29:31 krshina3 kernel:  [<ffffffff810e1aa9>] ? memdup_user+0x38/0x54
May 29 03:29:31 krshina3 kernel:  [<ffffffff8111e84d>] ? SyS_mount+0x6d/0x93
May 29 03:29:31 krshina3 kernel:  [<ffffffff815f4457>] ?
entry_SYSCALL_64_fastpath+0x12/0x6a
May 29 03:29:31 krshina3 kernel: Mem-Info:
May 29 03:29:31 krshina3 kernel: active_anon:727707
inactive_anon:145460 isolated_anon:0\x0a active_file:490242
inactive_file:463553 isolated_file:0\x0a unevictable:1855 dirty:277
writeback:0 unstable:0\x0a slab_reclaimable:82357
slab_unreclaimable:8748\x0a mapped:35736 shmem:5468 pagetables:9952
bounce:0\x0a free:18721 free_pcp:1 free_cma:0
May 29 03:29:31 krshina3 kernel: DMA free:15900kB min:20kB low:24kB
high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB
inactive_file:0kB unevictable:0kB isolated(anon):0kB
isolated(file):0kB present:15984kB managed:15900kB mlocked:0kB
dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB
slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB
bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? yes
May 29 03:29:31 krshina3 kernel: lowmem_reserve[]: 0 2951 7665 7665
May 29 03:29:31 krshina3 kernel: DMA32 free:31420kB min:4308kB
low:5384kB high:6460kB active_anon:1060596kB inactive_anon:269016kB
active_file:757700kB inactive_file:714956kB unevictable:3152kB
isolated(anon):0kB isolated(file):0kB present:3098560kB
managed:3022712kB mlocked:3152kB dirty:828kB writeback:0kB
mapped:56216kB shmem:8260kB slab_reclaimable:127808kB
slab_unreclaimable:11900kB kernel_stack:2528kB pagetables:17212kB
unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
May 29 03:29:31 krshina3 kernel: lowmem_reserve[]: 0 0 4714 4714
May 29 03:29:31 krshina3 kernel: Normal free:27564kB min:6884kB
low:8604kB high:10324kB active_anon:1850232kB inactive_anon:312824kB
active_file:1203268kB inactive_file:1139256kB unevictable:4268kB
isolated(anon):0kB isolated(file):0kB present:4954112kB
managed:4828044kB mlocked:4268kB dirty:280kB writeback:0kB
mapped:86728kB shmem:13612kB slab_reclaimable:201620kB
slab_unreclaimable:23092kB kernel_stack:4128kB pagetables:22596kB
unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
writeback_tmp:0kB pages_scanned:112 all_unreclaimable? no
May 29 03:29:31 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
May 29 03:29:31 krshina3 kernel: DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U)
0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
1*2048kB (M) 3*4096kB (M) = 15900kB
May 29 03:29:31 krshina3 kernel: DMA32: 1073*4kB (UME) 2615*8kB (UME)
391*16kB (UME) 6*32kB (UE) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
0*2048kB 0*4096kB = 31660kB
May 29 03:29:31 krshina3 kernel: Normal: 5367*4kB (UME) 794*8kB (UM)
16*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB
0*4096kB = 28076kB
May 29 03:29:31 krshina3 kernel: Node 0 hugepages_total=0
hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
May 29 03:29:31 krshina3 kernel: 965181 total pagecache pages
May 29 03:29:31 krshina3 kernel: 4295 pages in swap cache
May 29 03:29:31 krshina3 kernel: Swap cache stats: add 234992, delete
230697, find 382395/437309
May 29 03:29:31 krshina3 kernel: Free swap  = 199248kB
May 29 03:29:31 krshina3 kernel: Total swap = 594300kB
May 29 03:29:31 krshina3 kernel: 2017164 pages RAM
May 29 03:29:31 krshina3 kernel: 0 pages HighMem/MovableOnly
May 29 03:29:31 krshina3 kernel: 50500 pages reserved

On Fri, May 27, 2016 at 5:01 PM, Dušan Čolić <dusanc@xxxxxxxxx> wrote:
> On Fri, May 27, 2016 at 4:20 PM, Edward Shishkin
> <edward.shishkin@xxxxxxxxx> wrote:
>> This is just FYI, that with some options fsck doesn't perform any check.
>> It was added to make some distros happy at boot time.
>
> If -a is a false option then it shouldn't advert as:  automatically
> checks the consistency without any questions.
>
> Would -p be a better option to use then?
>
>> As to page allocation failure: it is an old issue, not always reproducible.
>> I'll add a respective ticket.
>>
>
> OK
>
> Problem with this corruption is that fsck doesn't repair it, files
> that should be removed aren't. This is from 2nd fsck run:
>
> fsck.reiser4 --build-fs /dev/md125
> *******************************************************************
> This is an EXPERIMENTAL version of fsck.reiser4. Read README first.
> *******************************************************************
>
> Fscking the /dev/md125 block device.
> Will check the consistency of the Reiser4 SuperBlock.
> Will build the Reiser4 FileSystem.
> Continue?
> (Yes/No): y
> ***** fsck.reiser4 started at Fri May 27 15:48:27 2016
> Reiser4 fs was detected on /dev/md125.
> Master super block (16):
> magic:        ReIsEr4
> blksize:    4096
> format:        0x0 (format40)
> uuid:        184e9560-bdf9-42b0-896c-0af2a0c84066
> label:        <none>
>
> Format super block (17):
> plugin:        format40
> description:    Disk-format plugin.
> version:    1
> magic:        ReIsEr40FoRmAt
> mkfs id:    0x2a685787
> flushes:    0
> blocks:        17091120
> free blocks:    3760703
> root block:    12895243
> tail policy:    0x2 (smart)
> next oid:    0x12603d1
> file count:    1165916
> tree height:    5
> key policy:    LARGE
>
>
> CHECKING THE STORAGE TREE
>         Read nodes 7710317
>     Nodes left in the tree 7710317
>         Leaves of them 7618113, Twigs of them 91046
>     Time interval: Fri May 27 15:48:31 2016 - Fri May 27 15:57:36 2016
> CHECKING EXTENT REGIONS.
>         Read twigs 91046
>     Time interval: Fri May 27 15:57:36 2016 - Fri May 27 16:02:54 2016
> LOOKING FOR UNCONNECTED NODES
>         Read nodes 0
>     Good nodes 0
>         Leaves of them 0, Twigs of them 0
>     Time interval: Fri May 27 16:02:55 2016 - Fri May 27 16:02:55 2016
> CHECKING EXTENT REGIONS.
>         Read twigs 0
>     Time interval: Fri May 27 16:02:55 2016 - Fri May 27 16:02:55 2016
> INSERTING UNCONNECTED NODES
> 1. Twigs: done
> 2. Twigs by item: done
> 3. Leaves: done
> 4. Leaves by item: done
>         Twigs: read 0, inserted 0, by item 0, empty 0
>     Leaves: read 0, inserted 0, by item 0
>     Time interval: Fri May 27 16:02:55 2016 - Fri May 27 16:02:55 2016
> CHECKING THE SEMANTIC TREE
> FSCK: ccreg40_repair.c: 189: ccreg40_check_cluster: The file
> [1253cec:2e77696e646f77:1253ced] (ccreg40): the cluster at [851116032]
> offset 65536 bytes long is
> corrupted. Removed.
> FSCK: ccreg40_repair.c: 189: ccreg40_check_cluster: The file
> [124224e:2e77696e646f77:124224f] (ccreg40): the cluster at [851116032]
> offset 65536 bytes long is
> corrupted. Removed.
> FSCK: ccreg40_repair.c: 189: ccreg40_check_cluster: The file
> [1230c6e:2e77696e646f77:1230c6f] (ccreg40): the cluster at [850722816]
> offset 65536 bytes long is
> corrupted. Removed.
>         Found 1165916 objects.
>     Time interval: Fri May 27 16:02:55 2016 - Fri May 27 16:39:37 2016
> CLEANING UP THE STORAGE TREE
>         Removed items 0
>     Time interval: Fri May 27 16:39:37 2016 - Fri May 27 16:56:07 2016
> ***** fsck.reiser4 finished at Fri May 27 16:56:07 2016
> Closing fs...done
>
> FS is consistent.
>
>
>> Thanks,
>> Edward.
>>
>>
>>
>> On 05/27/2016 03:10 PM, Dušan Čolić wrote:
>>>
>>> fsck.reiser4 --build-fs /dev/md125
>>> *******************************************************************
>>> This is an EXPERIMENTAL version of fsck.reiser4. Read README first.
>>> *******************************************************************
>>>
>>> Fscking the /dev/md125 block device.
>>> Will check the consistency of the Reiser4 SuperBlock.
>>> Will build the Reiser4 FileSystem.
>>> Continue?
>>> (Yes/No): y
>>> ***** fsck.reiser4 started at Fri May 27 13:29:52 2016
>>> Reiser4 fs was detected on /dev/md125.
>>> Master super block (16):
>>> magic:        ReIsEr4
>>> blksize:    4096
>>> format:        0x0 (format40)
>>> uuid:        184e9560-bdf9-42b0-896c-0af2a0c84066
>>> label:        <none>
>>>
>>> Format super block (17):
>>> plugin:        format40
>>> description:    Disk-format plugin.
>>> version:    1
>>> magic:        ReIsEr40FoRmAt
>>> mkfs id:    0x2a685787
>>> flushes:    0
>>> blocks:        17091120
>>> free blocks:    3760687
>>> root block:    12895243
>>> tail policy:    0x2 (smart)
>>> next oid:    0x12603d1
>>> file count:    1165915
>>> tree height:    5
>>> key policy:    LARGE
>>>
>>>
>>> CHECKING THE STORAGE TREE
>>>          Read nodes 7710333
>>>      Nodes left in the tree 7710333
>>>          Leaves of them 7618129, Twigs of them 91046
>>>      Time interval: Fri May 27 13:29:56 2016 - Fri May 27 13:53:14 2016
>>> CHECKING EXTENT REGIONS.
>>>          Read twigs 91046
>>>      Time interval: Fri May 27 13:53:14 2016 - Fri May 27 13:58:55 2016
>>> LOOKING FOR UNCONNECTED NODES
>>>          Read nodes 0
>>>      Good nodes 0
>>>          Leaves of them 0, Twigs of them 0
>>>      Time interval: Fri May 27 13:58:56 2016 - Fri May 27 13:58:56 2016
>>> CHECKING EXTENT REGIONS.
>>>          Read twigs 0
>>>      Time interval: Fri May 27 13:58:56 2016 - Fri May 27 13:58:56 2016
>>> INSERTING UNCONNECTED NODES
>>> 1. Twigs: done
>>> 2. Twigs by item: done
>>> 3. Leaves: done
>>> 4. Leaves by item: done
>>>          Twigs: read 0, inserted 0, by item 0, empty 0
>>>      Leaves: read 0, inserted 0, by item 0
>>>      Time interval: Fri May 27 13:58:56 2016 - Fri May 27 13:58:56 2016
>>> CHECKING THE SEMANTIC TREE
>>> FSCK: semantic.c: 705: repair_semantic_lost_prepare: No 'lost+found'
>>> entry found. Building a new object with the key 2a:0:ffff.
>>> FSCK: semantic.c: 573: repair_semantic_dir_open: Failed to recognize
>>> the plugin for the directory [2a:0:ffff].
>>> FSCK: semantic.c: 581: repair_semantic_dir_open: Trying to recover the
>>> directory [2a:0:ffff] with the default plugin--dir40.
>>> FSCK: obj40_repair.c: 599: obj40_prepare_stat: The file [2a:0:ffff]
>>> does not have a StatData item. Creating a new one. Plugin dir40.
>>> FSCK: dir40_repair.c: 40: dir40_dot: Directory [2a:0:ffff]: The entry
>>> "." is not found. Insert a new one. Plugin (dir40).
>>> FSCK: obj40_repair.c: 146: obj40_check_bytes_report: Node (13999309),
>>> item (2), [2a:0:ffff] (stat40): wrong bytes (0), Fixed to (50).
>>> FSCK: obj40_repair.c: 373: obj40_stat_lw_check: Node (13999309), item
>>> (2), [2a:0:ffff] (stat40): wrong size (0), Fixed to (1).
>>> FSCK: ccreg40_repair.c: 189: ccreg40_check_cluster: The file
>>> [1253cec:2e77696e646f77:1253ced] (ccreg40): the cluster at [851116032]
>>> offset 65536 bytes long is
>>> corrupted. Removed.
>>> FSCK: ccreg40_repair.c: 189: ccreg40_check_cluster: The file
>>> [124224e:2e77696e646f77:124224f] (ccreg40): the cluster at [851116032]
>>> offset 65536 bytes long is
>>> corrupted. Removed.
>>> FSCK: ccreg40_repair.c: 189: ccreg40_check_cluster: The file
>>> [1230c6e:2e77696e646f77:1230c6f] (ccreg40): the cluster at [850722816]
>>> offset 65536 bytes long is
>>> corrupted. Removed.
>>>          Found 1165916 objects.
>>>      Time interval: Fri May 27 13:58:56 2016 - Fri May 27 14:36:59 2016
>>> CLEANING UP THE STORAGE TREE
>>>          Removed items 0
>>>      Time interval: Fri May 27 14:36:59 2016 - Fri May 27 14:53:42 2016
>>> FSCK: repair.c: 674: repair_update: File count 1165915 is wrong. Fixed
>>> to 1165916.
>>> ***** fsck.reiser4 finished at Fri May 27 14:53:42 2016
>>> Closing fs...done
>>>
>>> FS is consistent.
>>>
>>> On Fri, May 27, 2016 at 12:00 PM, Dušan Čolić <dusanc@xxxxxxxxx> wrote:
>>>>
>>>> On Fri, May 27, 2016 at 11:50 AM, Dušan Čolić <dusanc@xxxxxxxxx> wrote:
>>>>>
>>>>> On Fri, May 27, 2016 at 11:33 AM, Edward Shishkin
>>>>> <edward.shishkin@xxxxxxxxx> wrote:
>>>>>>
>>>>>> Hi Dushan,
>>>>>>
>>>>>>
>>>>>> On 05/27/2016 11:16 AM, Dušan Čolić wrote:
>>>>>>>
>>>>>>> I recieved this error few days ago.
>>>>>>
>>>>>>
>>>>>> What is md125?
>>>>>>
>>>>> 2 disk Raid1 array
>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>        68364480 blocks [2/2] [UU]
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>> Remounting this partition doesn't reproduce the error as it's
>>>>>>> automatically fscked.
>>>>>>
>>>>>>
>>>>>> Are you sure that it is fscked at all?
>>>>>> Checking by fsck is rather long process...
>>>>>>
>>>> And you were right, I used fsck.reiser4 -a that returns nothing if
>>>> reiser4.progs is 1.0.9.
>>>> I upgraded it to 1.1.0 and now fscking the partition.
>>>> But that script executed for 3 more nights and didn't make the error I
>>>> reported. PC wasn't rebooted in that time.
>>>>
>>>>
>>>>> md125 is my daily snapshot partition. There's a script that fscks it,
>>>>> then mounts and rsyncs /home to it daily at 2AM
>>>>>
>>>>>   cat /etc/cron.daily/rsnapshot.daily
>>>>> #!/bin/sh
>>>>>
>>>>> echo "### RSNAPSHOT DAILY ###"
>>>>> fsck.reiser4 -a /dev/md125 && mount /mnt/backup && rsnapshot -c
>>>>> /etc/rsnapshot.d/daily.conf daily || echo "Backup failure"
>>>>> umount /mnt/backup
>>>>> logger -s "### RSNAPSHOT DAILY OK###"
>>>>>
>>>>> It is very crude, error prone and can be improved, I just had no time ;)
>>>>>
>>>>>> Thanks,
>>>>>> Edward.
>>>>>>
>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> Dusan
>>>>>>>
>>>>>>> Mount options:
>>>>>>> /dev/md125        /mnt/backup    reiser4
>>>>>>> noatime,noauto,onerror=remount-ro  0 0
>>>>>>>
>>>>>>> May 25 03:29:57 krshina3 kernel: reiser4: md125: found disk format
>>>>>>> 4.0.1.
>>>>>>> May 25 03:29:57 krshina3 kernel: mount: page allocation failure:
>>>>>>> order:4, mode:0x26040c0
>>>>>>> May 25 03:29:57 krshina3 kernel: CPU: 2 PID: 7876 Comm: mount Not
>>>>>>> tainted 4.5.3-gentoo #4
>>>>>>> May 25 03:29:57 krshina3 kernel: Hardware name: Gigabyte Technology
>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>> May 25 03:29:57 krshina3 kernel:  0000000000000006 ffffffff81219767
>>>>>>> 0000000000000001 ffff8801bfe5bb30
>>>>>>> May 25 03:29:57 krshina3 kernel:  ffffffff810d2ded ffffffff8192ed30
>>>>>>> ffff88022e315168 026240c000000010
>>>>>>> May 25 03:29:57 krshina3 kernel:  0000000000000000 fffffffffffffff0
>>>>>>> 0000000000000001 ffffffff8192ed00
>>>>>>> May 25 03:29:57 krshina3 kernel: Call Trace:
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81219767>] ?
>>>>>>> dump_stack+0x46/0x59
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff810d2ded>] ?
>>>>>>> warn_alloc_failed+0x113/0x12b
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff810d5222>] ?
>>>>>>> __alloc_pages_nodemask+0x748/0x77e
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81095a1a>] ?
>>>>>>> console_unlock+0x371/0x3ac
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81101401>] ?
>>>>>>> cache_alloc_refill+0x27f/0x4c9
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81168cb6>] ?
>>>>>>> reiser4_mount+0xc/0xc
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81101142>] ?
>>>>>>> kmem_cache_alloc+0x69/0xa9
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff8115605f>] ?
>>>>>>> znodes_tree_init+0x4d/0xe7
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff8115c458>] ?
>>>>>>> reiser4_init_tree+0x3f/0xb2
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff8118afe5>] ?
>>>>>>> init_format_format40+0x37b/0x501
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81168d98>] ?
>>>>>>> fill_super+0xe2/0x1f7
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81107d8e>] ?
>>>>>>> mount_bdev+0x131/0x181
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff81107f59>] ?
>>>>>>> mount_fs+0xc/0x80
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff8111cb6d>] ?
>>>>>>> vfs_kern_mount+0x60/0xea
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff8111e523>] ?
>>>>>>> do_mount+0x92c/0xa43
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff811067e0>] ?
>>>>>>> __fput+0x169/0x17c
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff810e1aa9>] ?
>>>>>>> memdup_user+0x38/0x54
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff8111e84d>] ?
>>>>>>> SyS_mount+0x6d/0x93
>>>>>>> May 25 03:29:57 krshina3 kernel:  [<ffffffff815f4457>] ?
>>>>>>> entry_SYSCALL_64_fastpath+0x12/0x6a
>>>>>>> May 25 03:29:57 krshina3 kernel: Mem-Info:
>>>>>>> May 25 03:29:57 krshina3 kernel: active_anon:745432
>>>>>>> inactive_anon:149913 isolated_anon:0\x0a active_file:474848
>>>>>>> inactive_file:465968 isolated_file:0\x0a unevictable:1855 dirty:235
>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:77405
>>>>>>> slab_unreclaimable:8391\x0a mapped:75083 shmem:6227 pagetables:9581
>>>>>>> bounce:0\x0a free:15583 free_pcp:0 free_cma:0
>>>>>>> May 25 03:29:57 krshina3 kernel: DMA free:15900kB min:20kB low:24kB
>>>>>>> high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>> inactive_file:0kB unevictable:0kB isolated(anon):0kB
>>>>>>> isolated(file):0kB present:15984kB managed:15900kB mlocked:0kB
>>>>>>> dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB
>>>>>>> slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB
>>>>>>> bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB
>>>>>>> pages_scanned:0 all_unreclaimable? yes
>>>>>>> May 25 03:29:57 krshina3 kernel: lowmem_reserve[]: 0 2951 7665 7665
>>>>>>> May 25 03:29:57 krshina3 kernel: DMA32 free:27644kB min:4308kB
>>>>>>> low:5384kB high:6460kB active_anon:1121656kB inactive_anon:284116kB
>>>>>>> active_file:711732kB inactive_file:701272kB unevictable:3152kB
>>>>>>> isolated(anon):0kB isolated(file):0kB present:3098560kB
>>>>>>> managed:3022712kB mlocked:3152kB dirty:32kB writeback:0kB
>>>>>>> mapped:117268kB shmem:7796kB slab_reclaimable:118956kB
>>>>>>> slab_unreclaimable:11168kB kernel_stack:2304kB pagetables:16272kB
>>>>>>> unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>> writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no
>>>>>>> May 25 03:29:57 krshina3 kernel: lowmem_reserve[]: 0 0 4714 4714
>>>>>>> May 25 03:29:57 krshina3 kernel: Normal free:18788kB min:6884kB
>>>>>>> low:8604kB high:10324kB active_anon:1860072kB inactive_anon:315536kB
>>>>>>> active_file:1187660kB inactive_file:1162600kB unevictable:4268kB
>>>>>>> isolated(anon):0kB isolated(file):0kB present:4954112kB
>>>>>>> managed:4828044kB mlocked:4268kB dirty:908kB writeback:0kB
>>>>>>> mapped:183064kB shmem:17112kB slab_reclaimable:190664kB
>>>>>>> slab_unreclaimable:22396kB kernel_stack:4192kB pagetables:22052kB
>>>>>>> unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>> writeback_tmp:0kB pages_scanned:92 all_unreclaimable? no
>>>>>>> May 25 03:29:57 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>> May 25 03:29:57 krshina3 kernel: DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U)
>>>>>>> 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U)
>>>>>>> 1*2048kB (M) 3*4096kB (M) = 15900kB
>>>>>>> May 25 03:29:57 krshina3 kernel: DMA32: 313*4kB (UME) 3299*8kB (UME)
>>>>>>> 14*16kB (UM) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB
>>>>>>> 0*4096kB = 27868kB
>>>>>>> May 25 03:29:57 krshina3 kernel: Normal: 206*4kB (UME) 372*8kB (UME)
>>>>>>> 942*16kB (UME) 4*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>> 0*2048kB 0*4096kB = 19000kB
>>>>>>> May 25 03:29:57 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>> May 25 03:29:57 krshina3 kernel: 948736 total pagecache pages
>>>>>>> May 25 03:29:57 krshina3 kernel: 166 pages in swap cache
>>>>>>> May 25 03:29:57 krshina3 kernel: Swap cache stats: add 3579, delete
>>>>>>> 3413, find 0/1
>>>>>>> May 25 03:29:57 krshina3 kernel: Free swap  = 580020kB
>>>>>>> May 25 03:29:57 krshina3 kernel: Total swap = 594300kB
>>>>>>> May 25 03:29:57 krshina3 kernel: 2017164 pages RAM
>>>>>>> May 25 03:29:57 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>> May 25 03:29:57 krshina3 kernel: 50500 pages reserved
>>>>>>> --
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