Re: [BUG] on mount with reiser4-for-4.8

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On Wed, Jan 11, 2017 at 11:37 AM, Edward Shishkin
<edward.shishkin@xxxxxxxxx> wrote:
> So what about data corruption?
> Did you encounter it after enabling swap?
>
Nо.

I just fsck-ed my R4 partitions to check and had no corruptions even
as I had disk full a couple of times on some of them in last weeks.


> Edward.
>
>
> On 01/11/2017 11:30 AM, Dušan Čolić wrote:
>>
>> On Wed, Jan 11, 2017 at 11:10 AM, Edward Shishkin
>> <edward.shishkin@xxxxxxxxx> wrote:
>>>
>>> Could you also try this patch in addition?
>>>
>> This fixed it.
>>
>>
>> Thanks a lot
>>
>> Dushan
>>
>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:27:42 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:27:56 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:17 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:22 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:23 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:24 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:25 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:26 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:27 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:28 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:29 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:30 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:31 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:32 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:33 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:34 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:35 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:36 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:37 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:38 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: found disk format 4.0.1.
>> Jan 11 11:28:39 krshina3 kernel: reiser4: md125: using Hybrid Transaction
>> Model.
>>
>>
>>> Thanks,
>>> Edward.
>>>
>>>
>>> On 01/08/2017 10:26 PM, Dušan Čolić wrote:
>>>>
>>>> Still doesn't mount but this time no messages in logs except:
>>>> Jan  8 22:20:45 krshina3 kernel: reiser4: md125: found disk format
>>>> 4.0.1.
>>>>
>>>> There is no second message after it that should say: Jan  8 22:20:32
>>>> krshina3 kernel: reiser4: md125: using Hybrid Transaction Model.
>>>>
>>>>
>>>> krshina3 dusan # mount /mnt/backup
>>>> mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory
>>>>
>>>> krshina3 dusan # cat /etc/fstab | grep -v "#"
>>>>
>>>>
>>>> /dev/sda1        /boot        ext2        noauto,noatime    1 2
>>>> /dev/md124              none            swap            sw
>>>> 0
>>>> 0
>>>> /dev/sda2        /        reiser4
>>>> txmod=wa,discard,noatime,onerror=remount-ro,dont_load_bitmap    0 0
>>>> /dev/md125        /mnt/backup    reiser4
>>>> noatime,noauto,onerror=remount-ro,dont_load_bitmap    0 0
>>>> /dev/md126        /mnt/media    reiser4
>>>> noatime,users,onerror=remount-ro,dont_load_bitmap    0 0
>>>> /dev/md127        /usr/portage    reiser4
>>>> noatime,onerror=remount-ro,dont_load_bitmap        0 0
>>>> /dev/dvdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>
>>>> shm            /dev/shm    tmpfs        nodev,nosuid,noexec    0 0
>>>>
>>>> On Sun, Jan 8, 2017 at 2:09 PM, Edward Shishkin
>>>> <edward.shishkin@xxxxxxxxx> wrote:
>>>>>
>>>>> Try to reproduce it with this patch. Let me know about results.
>>>>>
>>>>> Thanks,
>>>>> Edward.
>>>>>
>>>>>
>>>>> On 01/08/2017 09:25 AM, Dušan Čolić wrote:
>>>>>>
>>>>>> On Sat, Jan 7, 2017 at 11:51 PM, Edward Shishkin
>>>>>> <edward.shishkin@xxxxxxxxx> wrote:
>>>>>>>
>>>>>>> A deep dive to the page allocator is needed to find
>>>>>>> out why the warning (not simply regular ENOMEM).
>>>>>>>
>>>>>>> Edward.
>>>>>>>
>>>>>> This happens without any memory pressure, with 4G of 8G RAM free and
>>>>>> no swap activity.
>>>>>> I reproduced it on freshly booted system.
>>>>>>
>>>>>>
>>>>>>> On 01/06/2017 05:37 PM, Dušan Čolić wrote:
>>>>>>>>
>>>>>>>> On Sun, Dec 25, 2016 at 4:32 PM, Dušan Čolić <dusanc@xxxxxxxxx>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> On Sat, Dec 24, 2016 at 9:48 AM, Dušan Čolić <dusanc@xxxxxxxxx>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>> On Sun, Dec 18, 2016 at 2:46 PM, Dušan Čolić <dusanc@xxxxxxxxx>
>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>> That was it, no more BUG on mount.
>>>>>>>>>>>
>>>>>>>>>> I spoke prematurely.
>>>>>>>>>>
>>>>>>>>>> Looks like I had 2 different BUGs on mount:
>>>>>>>>>> 1. BUG when mounting partition with old disk format - that was
>>>>>>>>>> solved
>>>>>>>>>> with 4.8.1 patch
>>>>>>>>>> 2. BUG when mounting dismounted partition - this one is not solved
>>>>>>>>>>
>>>>>>>>> When I I get this BUG I do:
>>>>>>>>> echo 1 > /proc/sys/vm/drop_caches
>>>>>>>>>
>>>>>>>>> and everything works OK again.
>>>>>>>>>
>>>>>>>> With echo 1 > /proc/sys/vm/drop_caches added before mount to scripts
>>>>>>>> that I run daily on R4 partitions I had no occurence of this bug and
>>>>>>>> before I had it every day.
>>>>>>>>
>>>>>>>>
>>>>>>>>>> When partitions are mounted on boot they mount OK, but when system
>>>>>>>>>> finishes booting when I try to mount them I get this BUG:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: reiser4: md127: found disk format
>>>>>>>>>> 4.0.1.
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: mount: page allocation failure:
>>>>>>>>>> order:5, mode:0x26040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK)
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: CPU: 0 PID: 3859 Comm: mount Not
>>>>>>>>>> tainted 4.8.11-gentoo #5
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Hardware name: Gigabyte
>>>>>>>>>> Technology
>>>>>>>>>> Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  0000000000400000
>>>>>>>>>> ffff88007d0379b0
>>>>>>>>>> ffffffff814241c5 0000000000000005
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  0000000000000000
>>>>>>>>>> ffff88007d037a40
>>>>>>>>>> ffffffff811ab42a 026040c07d0379f0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  0000000000000202
>>>>>>>>>> 0000000000000004
>>>>>>>>>> 00000040026040c0 ffff88007d037ad0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Call Trace:
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff814241c5>]
>>>>>>>>>> dump_stack+0x4d/0x68
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff811ab42a>]
>>>>>>>>>> warn_alloc_failed+0xba/0x160
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff811aa483>] ?
>>>>>>>>>> get_page_from_freelist+0x143/0xcf0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff811ab863>]
>>>>>>>>>> __alloc_pages_nodemask+0x2f3/0xd40
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff810ca0d8>] ?
>>>>>>>>>> kmemcheck_pte_lookup+0x28/0x60
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff811fc28d>]
>>>>>>>>>> cache_alloc_refill+0xed/0x6a0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff811fc189>]
>>>>>>>>>> kmem_cache_alloc+0xf9/0x110
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812a060f>]
>>>>>>>>>> znodes_tree_init+0x5f/0x210
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812ac8ee>]
>>>>>>>>>> reiser4_init_tree+0x8e/0x150
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81304a55>]
>>>>>>>>>> init_format_format40+0x345/0x790
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81229aa4>] ?
>>>>>>>>>> unlock_new_inode+0x64/0xa0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812c4f3a>]
>>>>>>>>>> fill_super+0x14a/0x300
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81209b6f>]
>>>>>>>>>> mount_bdev+0x1bf/0x200
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812c4df0>] ?
>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812c4de0>]
>>>>>>>>>> reiser4_mount+0x10/0x20
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81209dfe>]
>>>>>>>>>> mount_fs+0x2e/0xe0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81231a96>]
>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81233af2>]
>>>>>>>>>> do_mount+0x1d2/0x1080
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812337f1>] ?
>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff812337da>] ?
>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81234e46>]
>>>>>>>>>> SyS_mount+0x66/0xb0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel:  [<ffffffff81a5765b>]
>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Mem-Info:
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: active_anon:453454
>>>>>>>>>> inactive_anon:113498 isolated_anon:0\x0a active_file:189238
>>>>>>>>>> inactive_file:800785 isolated_file:0\x0a unevictable:1866
>>>>>>>>>> dirty:1092
>>>>>>>>>> writeback:0 unstable:0\x0a slab_reclaimable:55782
>>>>>>>>>> slab_unreclaimable:60397\x0a mapped:20308 shmem:11803
>>>>>>>>>> pagetables:2738
>>>>>>>>>> bounce:0\x0a free:13271 free_pcp:0 free_cma:0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 active_anon:1813816kB
>>>>>>>>>> inactive_anon:453992kB active_file:756952kB
>>>>>>>>>> inactive_file:3203140kB
>>>>>>>>>> unevictable:7464kB isolated(anon):0kB isolated(file):0kB
>>>>>>>>>> mapped:81232kB dirty:4368kB writeback:0kB shmem:47212kB
>>>>>>>>>> writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable?
>>>>>>>>>> no
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA free:15896kB min:24kB
>>>>>>>>>> low:36kB
>>>>>>>>>> high:48kB active_anon:0kB inactive_anon:0kB active_file:0kB
>>>>>>>>>> inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB
>>>>>>>>>> managed:15900kB mlocked:0kB slab_reclaimable:0kB
>>>>>>>>>> slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB bounce:0kB
>>>>>>>>>> free_pcp:0kB local_pcp:0kB free_cma:0kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 3191 6627
>>>>>>>>>> 6627
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32 free:22044kB min:5012kB
>>>>>>>>>> low:8280kB high:11548kB active_anon:810196kB
>>>>>>>>>> inactive_anon:351420kB
>>>>>>>>>> active_file:172284kB inactive_file:1693924kB unevictable:0kB
>>>>>>>>>> writepending:2036kB present:3360704kB managed:3272764kB
>>>>>>>>>> mlocked:0kB
>>>>>>>>>> slab_reclaimable:85100kB slab_unreclaimable:120576kB
>>>>>>>>>> kernel_stack:416kB pagetables:3108kB bounce:0kB free_pcp:0kB
>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 3435 3435
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal free:15144kB min:5392kB
>>>>>>>>>> low:8908kB high:12424kB active_anon:1003620kB
>>>>>>>>>> inactive_anon:102572kB
>>>>>>>>>> active_file:584668kB inactive_file:1509216kB unevictable:7464kB
>>>>>>>>>> writepending:2332kB present:4691968kB managed:3517764kB
>>>>>>>>>> mlocked:7464kB
>>>>>>>>>> slab_reclaimable:138028kB slab_unreclaimable:121008kB
>>>>>>>>>> kernel_stack:4608kB pagetables:7844kB bounce:0kB free_pcp:0kB
>>>>>>>>>> local_pcp:0kB free_cma:0kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: lowmem_reserve[]: 0 0 0 0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA: 2*4kB (U) 0*8kB 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) = 15896kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: DMA32: 909*4kB (M) 662*8kB (ME)
>>>>>>>>>> 313*16kB (UME) 176*32kB (UME) 39*64kB (ME) 0*128kB 0*256kB 0*512kB
>>>>>>>>>> 0*1024kB 0*2048kB 0*4096kB = 22068kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Normal: 1493*4kB (UM) 397*8kB
>>>>>>>>>> (UME)
>>>>>>>>>> 375*16kB (UME) 1*32kB (E) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
>>>>>>>>>> 0*2048kB 0*4096kB = 15180kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Node 0 hugepages_total=0
>>>>>>>>>> hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 1003306 total pagecache pages
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages in swap cache
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Swap cache stats: add 0, delete
>>>>>>>>>> 0,
>>>>>>>>>> find
>>>>>>>>>> 0/0
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Free swap  = 9775420kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: Total swap = 9775420kB
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 2017164 pages RAM
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 0 pages HighMem/MovableOnly
>>>>>>>>>> Dec 24 09:41:21 krshina3 kernel: 315557 pages reserved
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Thanks a lot
>>>>>>>>>>>
>>>>>>>>>>> Dushan
>>>>>>>>>>>
>>>>>>>>>>> On Sun, Dec 18, 2016 at 1:44 PM, Edward Shishkin
>>>>>>>>>>> <edward.shishkin@xxxxxxxxx> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Try this one in addition.
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks,
>>>>>>>>>>>> Edward.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On 12/18/2016 01:17 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> It's OK now, mounts read-only on error.
>>>>>>>>>>>>>
>>>>>>>>>>>>> What about that BUG on mount?
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Sat, Dec 17, 2016 at 10:45 PM, Edward Shishkin
>>>>>>>>>>>>> <edward.shishkin@xxxxxxxxx> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Please, check if this help.
>>>>>>>>>>>>>> Apply from reiser4 directory.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>> Edward.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 12/17/2016 10:08 PM, Dušan Čolić wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> When mounting reiser4 partitions I get the following bug, but
>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>> system keeps working, even as reiser4 remounted partition as
>>>>>>>>>>>>>>> read
>>>>>>>>>>>>>>> only.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> All R4 partitions are ccreg40.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Dushan
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>        cat /etc/fstab | grep -v "#"
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /dev/sda1        /boot        ext2        noauto,noatime    1
>>>>>>>>>>>>>>> 2
>>>>>>>>>>>>>>> /dev/md123              none            swap            sw
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>> /dev/sda2        /        reiser4
>>>>>>>>>>>>>>> noatime,onerror=remount-ro
>>>>>>>>>>>>>>> 0 0
>>>>>>>>>>>>>>> /dev/md125        /mnt/backup    reiser4
>>>>>>>>>>>>>>> noatime,noauto,onerror=remount-ro    0 0
>>>>>>>>>>>>>>> /dev/md126        /mnt/media    reiser4
>>>>>>>>>>>>>>> noatime,users,onerror=remount-ro    0 0
>>>>>>>>>>>>>>> /dev/md127        /usr/portage    reiser4
>>>>>>>>>>>>>>> noatime,onerror=remount-ro        0 0
>>>>>>>>>>>>>>> /dev/dvdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>>>>>>>>>>>> shm            /dev/shm    tmpfs        nodev,nosuid,noexec
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>> 0
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> cat /proc/mdstat
>>>>>>>>>>>>>>> Personalities : [raid1]
>>>>>>>>>>>>>>> md122 : active raid1 sdc1[1] sdb1[0]
>>>>>>>>>>>>>>>             104320 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md123 : active raid1 sdc2[1] sdb2[0]
>>>>>>>>>>>>>>>             594304 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md124 : active raid1 sdc5[1] sdb5[0]
>>>>>>>>>>>>>>>             9775424 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md125 : active raid1 sdc6[1] sdb6[0]
>>>>>>>>>>>>>>>             68364480 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md126 : active raid1 sdc7[1] sdb7[0]
>>>>>>>>>>>>>>>             403110912 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> md127 : active raid1 sdc8[1] sdb8[0]
>>>>>>>>>>>>>>>             6433920 blocks [2/2] [UU]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>        df
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Filesystem     1K-blocks      Used Available Use% Mounted on
>>>>>>>>>>>>>>> /dev/sda2       37017728  30413152   6604576  83% /
>>>>>>>>>>>>>>> tmpfs             680644      1012    679632   1% /run
>>>>>>>>>>>>>>> dev                10240         0     10240   0% /dev
>>>>>>>>>>>>>>> shm              3403212      1284   3401928   1% /dev/shm
>>>>>>>>>>>>>>> cgroup_root        10240         0     10240   0%
>>>>>>>>>>>>>>> /sys/fs/cgroup
>>>>>>>>>>>>>>> /dev/md126     383034100 350741596  32292504  92% /mnt/media
>>>>>>>>>>>>>>> /dev/md127       6113484   5605344    508140  92%
>>>>>>>>>>>>>>> /usr/portage
>>>>>>>>>>>>>>> none             3403212        12   3403200   1%
>>>>>>>>>>>>>>> /run/user/1001
>>>>>>>>>>>>>>> none             3403212         0   3403212   0%
>>>>>>>>>>>>>>> /run/user/1000
>>>>>>>>>>>>>>> /dev/md125      64959612  52568760  12390852  81% /mnt/backup
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> dmesg
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> [    2.057469] reiser4[swapper/0(1)]: try_init_format40
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>                      NOTICE: Warning: mounting sda2 with
>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>> [    2.060544] reiser4: sda2: found disk format 4.0.1.
>>>>>>>>>>>>>>> [    2.062410]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [    2.063993] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801d0fc0850
>>>>>>>>>>>>>>> [    2.065616] Read of size 4 by task swapper/0/1
>>>>>>>>>>>>>>> [    2.067228] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>>>>>>>>>>>>> 4.8.11-gentoo
>>>>>>>>>>>>>>> #3
>>>>>>>>>>>>>>> [    2.068857] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [    2.070566]  ffff8801d08f4580 ffff8801d6327a20
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [    2.072316]  ffff8801d0fc0800 ffff8801d6327a48
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff8801d6327ad8
>>>>>>>>>>>>>>> [    2.074078]  ffff8801d0fc0800 ffff8801d0fc0800
>>>>>>>>>>>>>>> ffff8801d6327ac8
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [    2.075861] Call Trace:
>>>>>>>>>>>>>>> [    2.077616]  [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [    2.079402]  [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [    2.081216]  [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [    2.083049]  [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [    2.084876]  [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [    2.086717]  [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [    2.088594]  [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [    2.090471]  [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [    2.092356]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [    2.094224]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [    2.096073]  [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [    2.097930]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [    2.099785]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [    2.101654]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [    2.103528]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [    2.105397]  [<ffffffff811fe944>] ?
>>>>>>>>>>>>>>> kasan_check_write+0x14/0x20
>>>>>>>>>>>>>>> [    2.107295]  [<ffffffff811c4624>] ? strndup_user+0x54/0x70
>>>>>>>>>>>>>>> [    2.109187]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [    2.111089]  [<ffffffff820a8759>]
>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>> [    2.113023]  [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>> [    2.114955]  [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>> [    2.116887]  [<ffffffff820a84ec>]
>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>> [    2.118811]  [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>> [    2.120713]  [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>> [    2.122618]  [<ffffffff81a50e90>] ? rest_init+0x80/0x80
>>>>>>>>>>>>>>> [    2.124522] Object at ffff8801d0fc0800, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [    2.126453] Allocated:
>>>>>>>>>>>>>>> [    2.128364] PID = 1
>>>>>>>>>>>>>>> [    2.130261]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [    2.132219]  [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [    2.134206]  [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [    2.136188]  [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [    2.138174]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [    2.140144]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [    2.142096]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [    2.144055]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [    2.146028]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [    2.148016]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [    2.150014]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [    2.152026]  [<ffffffff820a8759>]
>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>> [    2.154055]  [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>> [    2.156066]  [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>> [    2.158074]  [<ffffffff820a84ec>]
>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>> [    2.160079]  [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>> [    2.162020]  [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>> [    2.163918] Freed:
>>>>>>>>>>>>>>> [    2.165760] PID = 1
>>>>>>>>>>>>>>> [    2.167562]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [    2.169376]  [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [    2.171150]  [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [    2.172895]  [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [    2.174616]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [    2.176290]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [    2.177962]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [    2.179633]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [    2.181273]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [    2.182910]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [    2.184541]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [    2.186171]  [<ffffffff820a8759>]
>>>>>>>>>>>>>>> mount_block_root+0x171/0x3ac
>>>>>>>>>>>>>>> [    2.187804]  [<ffffffff820a8a0b>] mount_root+0x77/0xd8
>>>>>>>>>>>>>>> [    2.189430]  [<ffffffff820a8ba1>]
>>>>>>>>>>>>>>> prepare_namespace+0x135/0x16d
>>>>>>>>>>>>>>> [    2.191056]  [<ffffffff820a84ec>]
>>>>>>>>>>>>>>> kernel_init_freeable+0x237/0x24b
>>>>>>>>>>>>>>> [    2.192683]  [<ffffffff81a50e9e>] kernel_init+0xe/0x120
>>>>>>>>>>>>>>> [    2.194296]  [<ffffffff81a5780f>] ret_from_fork+0x1f/0x40
>>>>>>>>>>>>>>> [    2.195902] Memory state around the buggy address:
>>>>>>>>>>>>>>> [    2.197517]  ffff8801d0fc0700: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [    2.199178]  ffff8801d0fc0780: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [    2.200818] >ffff8801d0fc0800: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    2.202460]
>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>> [    2.204114]  ffff8801d0fc0880: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    2.205804]  ffff8801d0fc0900: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    2.207471]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [    2.209162] Disabling lock debugging due to kernel taint
>>>>>>>>>>>>>>> [    2.210933] reiser4: sda2: use 'fsck.reiser4 --fix' to
>>>>>>>>>>>>>>> complete
>>>>>>>>>>>>>>> disk format upgrade.
>>>>>>>>>>>>>>> [    2.212696] usb 1-1.4: new high-speed USB device number 3
>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>> [    2.214507] usb 2-1.5: new full-speed USB device number 3
>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>> [    2.234910] hid-generic 0003:051D:0002.0002: device has no
>>>>>>>>>>>>>>> listeners, quitting
>>>>>>>>>>>>>>> [    2.312037] reiser4: sda2: using Hybrid Transaction Model.
>>>>>>>>>>>>>>> [    2.313880] VFS: Mounted root (reiser4 filesystem)
>>>>>>>>>>>>>>> readonly
>>>>>>>>>>>>>>> on
>>>>>>>>>>>>>>> device
>>>>>>>>>>>>>>> 8:2.
>>>>>>>>>>>>>>> [    2.315949] Freeing unused kernel memory: 968K
>>>>>>>>>>>>>>> (ffffffff82086000
>>>>>>>>>>>>>>> -
>>>>>>>>>>>>>>> ffffffff82178000)
>>>>>>>>>>>>>>> [    2.317823] Write protecting the kernel read-only data:
>>>>>>>>>>>>>>> 16384k
>>>>>>>>>>>>>>> [    2.320900] Freeing unused kernel memory: 1636K
>>>>>>>>>>>>>>> (ffff880001a67000 -
>>>>>>>>>>>>>>> ffff880001c00000)
>>>>>>>>>>>>>>> [    2.331114] Freeing unused kernel memory: 1848K
>>>>>>>>>>>>>>> (ffff880001e32000 -
>>>>>>>>>>>>>>> ffff880002000000)
>>>>>>>>>>>>>>> [    2.334644] hub 1-1.4:1.0: USB hub found
>>>>>>>>>>>>>>> [    2.336766] hub 1-1.4:1.0: 2 ports detected
>>>>>>>>>>>>>>> [    2.624398] usb 1-1.4.2: new full-speed USB device number
>>>>>>>>>>>>>>> 4
>>>>>>>>>>>>>>> using
>>>>>>>>>>>>>>> ehci-pci
>>>>>>>>>>>>>>> [    5.221431] random: crng init done
>>>>>>>>>>>>>>> [    7.579186] Adding 594300k swap on /dev/md123.
>>>>>>>>>>>>>>> Priority:-1
>>>>>>>>>>>>>>> extents:1 across:594300k
>>>>>>>>>>>>>>> [    7.661464] reiser4: md126: found disk format 4.0.1.
>>>>>>>>>>>>>>> [    7.661541]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [    7.661546] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cfaf1350
>>>>>>>>>>>>>>> [    7.661548] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>> [    7.661551] CPU: 0 PID: 1662 Comm: mount Tainted: G    B
>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>> [    7.661552] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [    7.661553]  ffff8801ceef3580 ffff8801cf087b28
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [    7.661556]  ffff8801cfaf1300 ffff8801cf087b50
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>> [    7.661559]  ffff8801cfaf1300 ffff8801cfaf1300
>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [    7.661561] Call Trace:
>>>>>>>>>>>>>>> [    7.661565]  [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [    7.661569]  [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [    7.661571]  [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [    7.661574]  [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [    7.661577]  [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [    7.661580]  [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [    7.661582]  [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [    7.661585]  [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [    7.661588]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [    7.661591]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [    7.661593]  [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [    7.661594]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [    7.661597]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [    7.661600]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [    7.661602]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [    7.661604]  [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>> [    7.661606]  [<ffffffff812337da>] ?
>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>> [    7.661608]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [    7.661613]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [    7.661614] Object at ffff8801cfaf1300, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [    7.661615] Allocated:
>>>>>>>>>>>>>>> [    7.661615] PID = 1662
>>>>>>>>>>>>>>> [    7.661616]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [    7.661620]  [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [    7.661622]  [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [    7.661625]  [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [    7.661628]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [    7.661630]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [    7.661632]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [    7.661634]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [    7.661637]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [    7.661639]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [    7.661641]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [    7.661643]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [    7.661646] Freed:
>>>>>>>>>>>>>>> [    7.661646] PID = 1662
>>>>>>>>>>>>>>> [    7.661647]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [    7.661649]  [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [    7.661652]  [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [    7.661654]  [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [    7.661657]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [    7.661659]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [    7.661662]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [    7.661664]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [    7.661666]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [    7.661668]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [    7.661670]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [    7.661672]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [    7.661675] Memory state around the buggy address:
>>>>>>>>>>>>>>> [    7.661677]  ffff8801cfaf1200: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    7.661679]  ffff8801cfaf1280: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [    7.661681] >ffff8801cfaf1300: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    7.661681]
>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>> [    7.661683]  ffff8801cfaf1380: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    7.661684]  ffff8801cfaf1400: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [    7.661685]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [   10.972840] rcu-perf:rcu_perf_writer 0 has 100
>>>>>>>>>>>>>>> measurements
>>>>>>>>>>>>>>> [   11.016722] rcu-perf:Test complete
>>>>>>>>>>>>>>> [   26.835385] reiser4: md126: using Hybrid Transaction
>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>> [   26.857910] reiser4: md127: found disk format 4.0.1.
>>>>>>>>>>>>>>> [   26.857995]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [   26.858002] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff8801cbf560d0
>>>>>>>>>>>>>>> [   26.858003] Read of size 4 by task mount/1662
>>>>>>>>>>>>>>> [   26.858006] CPU: 0 PID: 1662 Comm: mount Tainted: G    B
>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>> [   26.858007] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [   26.858009]  ffff8801b9ded5c0 ffff8801cf087b28
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [   26.858012]  ffff8801cbf56080 ffff8801cf087b50
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff8801cf087be0
>>>>>>>>>>>>>>> [   26.858014]  ffff8801cbf56080 ffff8801cbf56080
>>>>>>>>>>>>>>> ffff8801cf087bd0
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [   26.858017] Call Trace:
>>>>>>>>>>>>>>> [   26.858020]  [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [   26.858024]  [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [   26.858027]  [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [   26.858029]  [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [   26.858032]  [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [   26.858035]  [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [   26.858038]  [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [   26.858040]  [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [   26.858043]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [   26.858046]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [   26.858048]  [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [   26.858050]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [   26.858052]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [   26.858055]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [   26.858057]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [   26.858059]  [<ffffffff812337da>] ?
>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>> [   26.858061]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [   26.858065]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [   26.858067] Object at ffff8801cbf56080, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [   26.858067] Allocated:
>>>>>>>>>>>>>>> [   26.858068] PID = 1662
>>>>>>>>>>>>>>> [   26.858069]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [   26.858072]  [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [   26.858075]  [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [   26.858077]  [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [   26.858080]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [   26.858082]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [   26.858085]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [   26.858087]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [   26.858089]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [   26.858091]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [   26.858093]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [   26.858095]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [   26.858098] Freed:
>>>>>>>>>>>>>>> [   26.858099] PID = 1662
>>>>>>>>>>>>>>> [   26.858099]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [   26.858102]  [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [   26.858104]  [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [   26.858107]  [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [   26.858109]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [   26.858111]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [   26.858114]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [   26.858116]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [   26.858118]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [   26.858120]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [   26.858122]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [   26.858124]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [   26.858128] Memory state around the buggy address:
>>>>>>>>>>>>>>> [   26.858130]  ffff8801cbf55f80: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [   26.858131]  ffff8801cbf56000: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [   26.858133] >ffff8801cbf56080: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [   26.858134]
>>>>>>>>>>>>>>> ^
>>>>>>>>>>>>>>> [   26.858135]  ffff8801cbf56100: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [   26.858137]  ffff8801cbf56180: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [   26.858137]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [   27.199941] reiser4: md127: using Hybrid Transaction
>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> [33530.203469] reiser4[mount(11677)]: try_init_format40
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> (fs/reiser4/plugin/disk_format/disk_format40.c:303)[vpf-1364]:
>>>>>>>>>>>>>>>                      NOTICE: Warning: mounting md125 with
>>>>>>>>>>>>>>> fatal
>>>>>>>>>>>>>>> errors,
>>>>>>>>>>>>>>> forcing read-only mount.
>>>>>>>>>>>>>>> [33530.203480] reiser4: md125: found disk format 4.0.1.
>>>>>>>>>>>>>>> [33530.203564]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [33530.203570] BUG: KASAN: use-after-free in
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750 at addr ffff88013164d810
>>>>>>>>>>>>>>> [33530.203571] Read of size 4 by task mount/11677
>>>>>>>>>>>>>>> [33530.203574] CPU: 0 PID: 11677 Comm: mount Tainted: G    B
>>>>>>>>>>>>>>> 4.8.11-gentoo #3
>>>>>>>>>>>>>>> [33530.203575] Hardware name: Gigabyte Technology Co., Ltd.
>>>>>>>>>>>>>>> To
>>>>>>>>>>>>>>> be
>>>>>>>>>>>>>>> filled by O.E.M./B75-D3V, BIOS F5 07/04/2012
>>>>>>>>>>>>>>> [33530.203577]  ffff88000e65ce80 ffff88000da87b28
>>>>>>>>>>>>>>> ffffffff81424185
>>>>>>>>>>>>>>> ffff8801d6000600
>>>>>>>>>>>>>>> [33530.203580]  ffff88013164d7c0 ffff88000da87b50
>>>>>>>>>>>>>>> ffffffff811ff90c
>>>>>>>>>>>>>>> ffff88000da87be0
>>>>>>>>>>>>>>> [33530.203582]  ffff88013164d7c0 ffff88013164d7c0
>>>>>>>>>>>>>>> ffff88000da87bd0
>>>>>>>>>>>>>>> ffffffff811ffb79
>>>>>>>>>>>>>>> [33530.203585] Call Trace:
>>>>>>>>>>>>>>> [33530.203588]  [<ffffffff81424185>] dump_stack+0x4d/0x68
>>>>>>>>>>>>>>> [33530.203592]  [<ffffffff811ff90c>]
>>>>>>>>>>>>>>> kasan_object_err+0x1c/0x70
>>>>>>>>>>>>>>> [33530.203595]  [<ffffffff811ffb79>]
>>>>>>>>>>>>>>> kasan_report_error+0x1c9/0x4b0
>>>>>>>>>>>>>>> [33530.203597]  [<ffffffff812a10cf>] ? zget+0xdf/0x3c0
>>>>>>>>>>>>>>> [33530.203600]  [<ffffffff811ffef4>] kasan_report+0x34/0x40
>>>>>>>>>>>>>>> [33530.203603]  [<ffffffff81304b11>] ?
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [33530.203605]  [<ffffffff811ff601>] __asan_load4+0x61/0x80
>>>>>>>>>>>>>>> [33530.203608]  [<ffffffff81304b11>]
>>>>>>>>>>>>>>> init_format_format40+0x401/0x750
>>>>>>>>>>>>>>> [33530.203610]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [33530.203613]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [33530.203615]  [<ffffffff812c4df0>] ?
>>>>>>>>>>>>>>> reiser4_mount+0x20/0x20
>>>>>>>>>>>>>>> [33530.203617]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [33530.203620]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [33530.203622]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [33530.203625]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [33530.203627]  [<ffffffff812337f1>] ?
>>>>>>>>>>>>>>> copy_mount_options+0x111/0x220
>>>>>>>>>>>>>>> [33530.203629]  [<ffffffff812337da>] ?
>>>>>>>>>>>>>>> copy_mount_options+0xfa/0x220
>>>>>>>>>>>>>>> [33530.203631]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [33530.203635]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [33530.203637] Object at ffff88013164d7c0, in cache
>>>>>>>>>>>>>>> kmalloc-512
>>>>>>>>>>>>>>> size:
>>>>>>>>>>>>>>> 512
>>>>>>>>>>>>>>> [33530.203637] Allocated:
>>>>>>>>>>>>>>> [33530.203638] PID = 11677
>>>>>>>>>>>>>>> [33530.203639]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [33530.203642]  [<ffffffff811fe802>]
>>>>>>>>>>>>>>> kasan_kmalloc.part.5+0x62/0xf0
>>>>>>>>>>>>>>> [33530.203645]  [<ffffffff811ff018>] kasan_kmalloc+0x78/0xa0
>>>>>>>>>>>>>>> [33530.203647]  [<ffffffff813048bc>]
>>>>>>>>>>>>>>> init_format_format40+0x1ac/0x750
>>>>>>>>>>>>>>> [33530.203650]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [33530.203652]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [33530.203654]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [33530.203656]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [33530.203659]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [33530.203661]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [33530.203663]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [33530.203665]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [33530.203668] Freed:
>>>>>>>>>>>>>>> [33530.203669] PID = 11677
>>>>>>>>>>>>>>> [33530.203669]  [<ffffffff8109f536>]
>>>>>>>>>>>>>>> save_stack_trace+0x26/0x50
>>>>>>>>>>>>>>> [33530.203671]  [<ffffffff811feed7>]
>>>>>>>>>>>>>>> kasan_slab_free+0xb7/0x180
>>>>>>>>>>>>>>> [33530.203674]  [<ffffffff811fd67b>] kfree+0x6b/0x90
>>>>>>>>>>>>>>> [33530.203676]  [<ffffffff81304b09>]
>>>>>>>>>>>>>>> init_format_format40+0x3f9/0x750
>>>>>>>>>>>>>>> [33530.203679]  [<ffffffff812c4f3a>] fill_super+0x14a/0x300
>>>>>>>>>>>>>>> [33530.203681]  [<ffffffff81209b6f>] mount_bdev+0x1bf/0x200
>>>>>>>>>>>>>>> [33530.203683]  [<ffffffff812c4de0>] reiser4_mount+0x10/0x20
>>>>>>>>>>>>>>> [33530.203685]  [<ffffffff81209dfe>] mount_fs+0x2e/0xe0
>>>>>>>>>>>>>>> [33530.203688]  [<ffffffff81231a96>]
>>>>>>>>>>>>>>> vfs_kern_mount+0x66/0x190
>>>>>>>>>>>>>>> [33530.203690]  [<ffffffff81233af2>] do_mount+0x1d2/0x1080
>>>>>>>>>>>>>>> [33530.203692]  [<ffffffff81234e46>] SyS_mount+0x66/0xb0
>>>>>>>>>>>>>>> [33530.203694]  [<ffffffff81a5761b>]
>>>>>>>>>>>>>>> entry_SYSCALL_64_fastpath+0x13/0x8f
>>>>>>>>>>>>>>> [33530.203697] Memory state around the buggy address:
>>>>>>>>>>>>>>> [33530.203699]  ffff88013164d700: fc fc fc fc fc fc fc fc fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc
>>>>>>>>>>>>>>> fc fc fc fc
>>>>>>>>>>>>>>> [33530.203701]  ffff88013164d780: fc fc fc fc fc fc fc fc fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203703] >ffff88013164d800: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203703]                          ^
>>>>>>>>>>>>>>> [33530.203705]  ffff88013164d880: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203707]  ffff88013164d900: fb fb fb fb fb fb fb fb fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb
>>>>>>>>>>>>>>> fb fb fb fb
>>>>>>>>>>>>>>> [33530.203707]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ==================================================================
>>>>>>>>>>>>>>> [33533.485380] reiser4: md125: using Hybrid Transaction
>>>>>>>>>>>>>>> Model.
>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>> To unsubscribe from this list: send the line "unsubscribe
>>>>>>>>>>>>>>> reiserfs-devel"
>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>> the body of a message to majordomo@xxxxxxxxxxxxxxx
>>>>>>>>>>>>>>> More majordomo info at
>>>>>>>>>>>>>>> http://vger.kernel.org/majordomo-info.html
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
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