* ubifs: partition won't mount: duplicate sqnum in replay ???
@ 2008-12-29 15:54 Cal Page
2008-12-30 8:51 ` Adrian Hunter
0 siblings, 1 reply; 8+ messages in thread
From: Cal Page @ 2008-12-29 15:54 UTC (permalink / raw)
To: ubifs
How do I get past this UBIFS mount failure:
UBIFS error (pid XXX): insert_node: duplicate sqnum in replay.
UBIFS DBG (pid XXX): ubifs_bp_thread: background thread "ubifs_bht0_1" stops
Cal Page
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
2008-12-29 15:54 ubifs: partition won't mount: duplicate sqnum in replay ??? Cal Page
@ 2008-12-30 8:51 ` Adrian Hunter
2008-12-30 11:48 ` Artem Bityutskiy
0 siblings, 1 reply; 8+ messages in thread
From: Adrian Hunter @ 2008-12-30 8:51 UTC (permalink / raw)
To: Cal Page; +Cc: ubifs
Cal Page wrote:
> How do I get past this UBIFS mount failure:
>
> UBIFS error (pid XXX): insert_node: duplicate sqnum in replay.
>
> UBIFS DBG (pid XXX): ubifs_bp_thread: background thread "ubifs_bht0_1" stops
The error is fatal. There is no getting past it.
Perhaps you could send some more information. What kernel version are you using?
What patches have you applied? How did the problem arise? Can you send all the
kernel messages? Can you send an image of the file system?
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
2008-12-30 8:51 ` Adrian Hunter
@ 2008-12-30 11:48 ` Artem Bityutskiy
0 siblings, 0 replies; 8+ messages in thread
From: Artem Bityutskiy @ 2008-12-30 11:48 UTC (permalink / raw)
To: Adrian Hunter; +Cc: Cal Page, ubifs
On Tue, 2008-12-30 at 10:51 +0200, Adrian Hunter wrote:
> Cal Page wrote:
> > How do I get past this UBIFS mount failure:
> >
> > UBIFS error (pid XXX): insert_node: duplicate sqnum in replay.
> >
> > UBIFS DBG (pid XXX): ubifs_bp_thread: background thread "ubifs_bht0_1" stops
>
> The error is fatal. There is no getting past it.
>
> Perhaps you could send some more information. What kernel version are you using?
> What patches have you applied? How did the problem arise? Can you send all the
> kernel messages? Can you send an image of the file system?
I think he did not properly erase his flash, than flashed the image
somehow, and ended up with a mixture of old garbage and the new image.
But this is only a theory.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
@ 2008-12-30 12:11 Cal Page
2008-12-30 12:27 ` Artem Bityutskiy
2008-12-30 15:29 ` Artem Bityutskiy
0 siblings, 2 replies; 8+ messages in thread
From: Cal Page @ 2008-12-30 12:11 UTC (permalink / raw)
To: ubifs
I'm running ubi at 2.6.27.4, ubifs is a mix of that base plus some
2.6.21 as the vfs interface changed. There are only three mtd calls you
make, so that rev just isn't important. The base kernel, and most of vfs
is at 2.6.19.
I did not initialize the nand for the unit in question. It could have
been the problem. I'll re-format it and start again. But, for testing,
we have a 'crasher' device that randomly crashes the file system to
force us into difficult recoveries. In short, for ubifs to be shipped,
it must survive and re-mount AFTER EVERY CRASH, period.
The only other problem is that ubifs takes way too much memory. We run
for a few days on our 1 gb nand, and then the oom_killer gets called and
down we go. What exactly was done in later releases to fix this? I need
to back-port a solution before we ship.
Cal Page
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
2008-12-30 12:11 Cal Page
@ 2008-12-30 12:27 ` Artem Bityutskiy
2008-12-30 15:29 ` Artem Bityutskiy
1 sibling, 0 replies; 8+ messages in thread
From: Artem Bityutskiy @ 2008-12-30 12:27 UTC (permalink / raw)
To: Cal Page; +Cc: ubifs
On Tue, 2008-12-30 at 07:11 -0500, Cal Page wrote:
> I'm running ubi at 2.6.27.4, ubifs is a mix of that base plus some
> 2.6.21 as the vfs interface changed. There are only three mtd calls you
> make, so that rev just isn't important. The base kernel, and most of vfs
> is at 2.6.19.
Not sure I understand this.
> I did not initialize the nand for the unit in question. It could have
> been the problem. I'll re-format it and start again. But, for testing,
> we have a 'crasher' device that randomly crashes the file system to
> force us into difficult recoveries. In short, for ubifs to be shipped,
> it must survive and re-mount AFTER EVERY CRASH, period.
Fair enough. We did similar tests at our side.
> The only other problem is that ubifs takes way too much memory.
You use olde kernel, and UBIFS shrinker is disabled there, which means
that it never flushes the TNC cache. This is noted here:
http://www.linux-mtd.infradead.org/doc/ubifs.html#L_source
> We run
> for a few days on our 1 gb nand, and then the oom_killer gets called and
> down we go. What exactly was done in later releases to fix this? I need
> to back-port a solution before we ship.
The TNC shrinker is registered. See 'ubifs_shrinker()'.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
2008-12-30 12:11 Cal Page
2008-12-30 12:27 ` Artem Bityutskiy
@ 2008-12-30 15:29 ` Artem Bityutskiy
1 sibling, 0 replies; 8+ messages in thread
From: Artem Bityutskiy @ 2008-12-30 15:29 UTC (permalink / raw)
To: Cal Page; +Cc: ubifs
On Tue, 2008-12-30 at 07:11 -0500, Cal Page wrote:
> I'm running ubi at 2.6.27.4, ubifs is a mix of that base plus some
> 2.6.21 as the vfs interface changed. There are only three mtd calls you
> make, so that rev just isn't important. The base kernel, and most of vfs
> is at 2.6.19.
You finally gave us some information, although obscure. What I
understood, you have 2.6.19. Then I would expect you to port everything
we have in our ubifs-v2.6.21.git tree to your tree. Never done this
myself.
A do not know what you mean by "rev just isn't important", but the
kernel version does matter a lot. There may be various subtle things
related to core kernel changes.
We do not test back-port trees extensively, so you should do this
yourself. Try to run "integck -n0" for few days for example. Run other
tests which you may find in mtd-utils.git/tests/fs-tests/ or in
ubifs-userspace.git/tests/.
> I did not initialize the nand for the unit in question. It could have
> been the problem. I'll re-format it and start again. But, for testing,
> we have a 'crasher' device that randomly crashes the file system to
> force us into difficult recoveries. In short, for ubifs to be shipped,
> it must survive and re-mount AFTER EVERY CRASH, period.
>
> The only other problem is that ubifs takes way too much memory. We run
> for a few days on our 1 gb nand, and then the oom_killer gets called and
> down we go. What exactly was done in later releases to fix this? I need
> to back-port a solution before we ship.
I'm not sure if you'll be able to back-port patches which allow
registering the shrinker to your tree. You may try. But what can be don
is you can hack UBIFS and call the shrinker yourself when amount of
znodes becomes larger than a certain limit, so you will prevent TNC from
growing too much.
However, I'm not 100% sure it is TNC who is guilty.
Could you please send the output of:
* cat /proc/slabinfo
* cat /proc/slab_allocators
to see RAM which object are there and who allocates them. To have the
latter, you should have 'CONFIG_SLABINFO' enabled.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
@ 2008-12-30 18:32 Cal Page
2008-12-31 17:14 ` Artem Bityutskiy
0 siblings, 1 reply; 8+ messages in thread
From: Cal Page @ 2008-12-30 18:32 UTC (permalink / raw)
To: ubifs
[-- Attachment #1: Type: text/plain, Size: 906 bytes --]
I had back ported ubifs_shrinker and it does get called from
__alloc_pages as it should.
Here's a failing case:
If /var/log is on the nand, and I do a (cd /var/log; tar -cvf
/someotherdevice.tar .) I notice ubifs_shrinker get called. nr is 128,
and clean_zn_cnt starts out at 1500 or so. But after tar has run a bit,
clean_zn_cnt bobbles around 400 or so. If I then kill the tar, and wait
about a minuite, clean_zn_cnt makes it back up to the 1500.
The system I'm running on may not have enough memory to support PEAK
UBIFS demands.
Where is the code that recycles the memory? Is it the per file system
daemons that get created on mount? How can I change the memory hold
timers in UBIFS so it'll let go a lot earlier?
I can't get it to crash when the CONFIG_DEBUG_SLAB_LEAK is on as the
system runs that much slower.
Attched are cats of proc/slabinfo.txt and slab_allocators.txt
Cal Page
[-- Attachment #2: slab_allocators.txt --]
[-- Type: text/plain, Size: 13606 bytes --]
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tcp_bind_bucket: 8 inet_bind_bucket_create+0x20/0x58
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ip_fib_hash: 10 fn_hash_insert+0x520/0x6d4
ip_dst_cache: 68 dst_alloc+0x44/0xc0
arp_cache: 5 neigh_create+0x1f4/0x5c8
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UDP: 20 sk_alloc+0x2c/0x124
TCP: 10 sk_alloc+0x2c/0x124
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size-64: 2 usb_cache_string+0x64/0x9c
size-64: 1 usb_get_configuration+0x634/0xc44
size-64: 1 usb_get_configuration+0x820/0xc44
size-64: 5 device_ioctl+0x1c0/0x798
size-64: 6 sound_insert_unit+0x38/0x18c
size-64: 3 dev_mc_add+0x2c/0x184
size-64: 1 neigh_table_init_no_netlink+0x78/0x1a4
size-64: 1 neigh_table_init_no_netlink+0xe0/0x1a4
size-64: 4 neigh_resolve_output+0x10c/0x2a8
size-64: 5 xt_alloc_table_info+0x3c/0xa4
size-64: 2 inet_alloc_ifa+0x1c/0x34
size-64: 4 fz_hash_alloc+0x20/0x48
size-64: 1 unix_bind+0x84/0x2b8
size-32: 1 mnt_init+0x14c/0x244
size-32: 3 ipc_init_proc_interface+0x2c/0x80
size-32: 1 loop_init+0x8c/0x28c
size-32: 1 mxc_ide_init+0x6c/0x380
size-32: 1 spi_init+0x1c/0x8c
size-32: 32 netlink_proto_init+0x90/0x178
size-32: 1 inet_init+0x1bc/0x354
size-32: 1 inet_init+0x1d0/0x354
size-32: 31 __dma_alloc+0x1f4/0x450
size-32: 19 __request_region+0x2c/0xcc
size-32: 12 register_sysctl_table+0x24/0xe0
size-32: 9 __create_workqueue+0x24/0x110
size-32: 3 set_acceptable_latency+0x24/0x144
size-32: 3 set_acceptable_latency+0x3c/0x144
size-32: 22 request_irq+0x64/0xb8
size-32: 15 mempool_create_node+0x2c/0xd8
size-32: 9 mempool_create_node+0x4c/0xd8
size-32: 2 set_shrinker+0x24/0x78
size-32: 26 __get_vm_area_node+0x98/0x1e0
size-32: 7 __vmalloc_area_node+0x70/0x15c
size-32: 4 shmem_fill_super+0xd4/0x1c4
size-32: 41 cache_alloc_refill+0x49c/0x770
size-32: 121 alloc_arraycache+0x24/0x40
size-32: 10 alloc_fdset+0x30/0x40
size-32: 22 alloc_vfsmnt+0xb0/0xd4
size-32: 1 single_open+0x28/0x8c
size-32: 1 bioset_create+0x28/0xd4
size-32: 4 proc_symlink+0x58/0xb4
size-32: 890 sysfs_create_link+0x8c/0x134
size-32: 890 sysfs_create_link+0xac/0x134
size-32: 1 ext3_fill_super+0x6c0/0x1314
size-32: 15 insert_old_idx+0x28/0xe0
size-32: 3 ubifs_replay_journal+0x724/0x1178
size-32: 261 ubifs_add_bud_to_log+0x30/0x580
size-32: 2 ubifs_lpt_init+0x54/0x9dc
size-32: 2 dbg_failure_mode_registration+0x20/0xc0
size-32: 4 copy_semundo+0x48/0x94
size-32: 1 sys_semtimedop+0x258/0x768
size-32: 2 sys_semtimedop+0x340/0x768
size-32: 20 register_blkdev+0x74/0x124
size-32: 1 kmp_init+0x2c/0xd0
size-32: 1 fb_alloc_cmap+0x44/0xd4
size-32: 1 fb_alloc_cmap+0x5c/0xd4
size-32: 1 fb_alloc_cmap+0x74/0xd4
size-32: 1 bit_cursor+0x30c/0x4b0
size-32: 21 rand_initialize_disk+0x20/0x3c
size-32: 5 device_add+0x118/0x4b0
size-32: 649 class_device_add+0x110/0x444
size-32: 1 platform_device_add_data+0x24/0x4c
size-32: 2 kobj_map_init+0x34/0x9c
size-32: 53 kobj_map+0x50/0x114
size-32: 11 dma_pool_alloc+0xc4/0x27c
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size-32: 1 cfi_read_pri+0x58/0xd4
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size-32: 2 ubi_open_volume+0x5c/0x240
size-32: 1 ubi_eba_init_scan+0x88/0x270
size-32: 1 hub_probe+0x134/0x618
size-32: 1 hub_probe+0x158/0x618
size-32: 1 usb_cache_string+0x64/0x9c
size-32: 1 usb_get_configuration+0xc8/0xc44
size-32: 1 usb_get_configuration+0x1d8/0xc44
size-32: 1 usb_create_ep_files+0x48/0x1cc
size-32: 1 mxc_kpp_probe+0x1d8/0x438
size-32: 1 mxc_kpp_probe+0x1ec/0x438
size-32: 6 mxc_kpp_probe+0x220/0x438
size-32: 6 mxc_kpp_probe+0x238/0x438
size-32: 1 mxc_kpp_probe+0x288/0x438
size-32: 1 mxc_kpp_probe+0x2a0/0x438
size-32: 2 i2cdev_attach_adapter+0x40/0x134
size-32: 1 sah_Queue_Construct+0x1c/0x38
size-32: 1 sah_Queue_Manager_Init+0x1c/0x74
size-32: 1 sah_Init_Mem_Map+0x20/0xa0
size-32: 9 vpu_ioctl+0x50/0x414
size-32: 7 snd_register_device+0x34/0x17c
size-32: 134 snd_info_create_entry+0x38/0xa8
size-32: 1 snd_ctl_register_ioctl+0x20/0x70
size-32: 22 snd_device_new+0x2c/0x84
size-32: 4 snd_register_oss_device+0x50/0x174
size-32: 5 snd_oss_info_register+0x58/0x98
size-32: 4 sock_kmalloc+0x5c/0x90
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size-32: 1 proto_register+0xfc/0x200
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size-32: 1 netlink_alloc_groups+0xd8/0xfc
size-32: 8 netlink_kernel_create+0x88/0x164
size-32: 1 genl_register_family+0xe4/0x168
size-32: 3 devinet_sysctl_register+0x94/0x120
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size-32: 5 fn_hash_insert+0x4c/0x6d4
size-32: 10 xfrm_hash_alloc+0x20/0x94
size-32: 2 unix_bind+0x84/0x2b8
[-- Attachment #3: slabinfo.txt --]
[-- Type: text/plain, Size: 26171 bytes --]
slabinfo - version: 2.1 (statistics)
# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail> : globalstat <listallocs> <maxobjs> <grown> <reaped> <error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow> : cpustat <allochit> <allocmiss> <freehit> <freemiss>
jbd_4k 0 0 4096 1 1 : tunables 24 12 0 : slabdata 0 0 0 : globalstat 84 7 72 72 0 0 0 0 0 : cpustat 2122 79 2201 0
ubifs_inode_slab 213 220 380 10 1 : tunables 32 16 0 : slabdata 22 22 0 : globalstat 2057 270 27 1 0 1 0 0 0 : cpustat 1362 181 1302 28
UNIX 9 10 368 10 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 69 10 1 0 0 0 0 0 0 : cpustat 147 43 181 0
ipt_hashlimit 0 0 52 72 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
ip_conntrack_expect 0 0 116 33 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
ip_conntrack 35 48 248 16 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 1831 64 4 1 0 0 0 0 0 : cpustat 732 120 818 0
flow_cache 0 0 92 42 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
ubi_wl_entry_slab 8187 8249 32 113 1 : tunables 32 16 0 : slabdata 73 73 0 : globalstat 8200 8200 73 0 0 0 0 0 0 : cpustat 7607 580 0 0
cfq_ioc_pool 23 40 96 40 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 352 24 1 0 0 0 0 0 0 : cpustat 40 22 54 0
cfq_pool 20 36 108 36 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 368 21 1 0 0 0 0 0 0 : cpustat 27 23 45 0
jffs2_inode_cache 0 0 36 101 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_node_frag 0 0 36 101 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_refblock 0 0 264 15 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_tmp_dnode 0 0 44 84 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_raw_inode 0 0 80 48 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_raw_dirent 0 0 52 72 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_full_dnode 0 0 28 127 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
jffs2_i 0 0 348 11 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
fat_inode_cache 0 0 356 11 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
fat_cache 0 0 32 113 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
journal_handle 16 113 32 113 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 208 16 13 12 0 0 0 0 0 : cpustat 330174 13 330187 0
journal_head 20 59 64 59 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 169648 4709 1084 7 0 1 0 0 0 : cpustat 187750 10961 188118 10585
revoke_table 2 145 24 145 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 16 16 1 0 0 0 0 0 0 : cpustat 1 1 0 0
revoke_record 0 0 28 127 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 128 32 7 7 0 0 0 0 0 : cpustat 91 8 99 0
ext3_inode_cache 98 180 428 9 1 : tunables 32 16 0 : slabdata 20 20 0 : globalstat 1013 585 66 6 0 3 0 0 0 : cpustat 961 99 928 49
dnotify_cache 0 0 32 113 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
eventpoll_pwq 0 0 48 78 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
eventpoll_epi 0 0 92 42 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
inotify_event_cache 0 0 40 92 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
inotify_watch_cache 1 72 52 72 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 16 16 1 0 0 0 0 0 0 : cpustat 0 1 0 0
kioctx 0 0 168 23 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
kiocb 0 0 144 27 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
fasync_cache 0 0 28 127 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
shmem_inode_cache 898 900 396 10 1 : tunables 32 16 0 : slabdata 90 90 0 : globalstat 921 900 90 0 0 0 0 0 0 : cpustat 1494 94 690 0
posix_timers_cache 0 0 96 40 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
uid_cache 0 0 56 67 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
tcp_bind_bucket 8 127 28 127 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 80 23 1 0 0 0 0 0 0 : cpustat 20 5 17 0
inet_peer_cache 1 67 56 67 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 32 17 1 0 0 0 0 0 0 : cpustat 0 2 1 0
secpath_cache 0 0 44 84 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
xfrm_dst_cache 0 0 272 14 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
ip_fib_alias 10 101 36 101 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 32 21 1 0 0 0 0 0 0 : cpustat 8 2 0 0
ip_fib_hash 10 113 32 113 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 32 21 1 0 0 0 0 0 0 : cpustat 8 2 0 0
ip_dst_cache 83 96 248 16 1 : tunables 32 16 0 : slabdata 6 6 0 : globalstat 1841 96 7 0 0 0 0 0 0 : cpustat 379 137 436 12
arp_cache 6 29 136 29 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 591 29 1 0 0 0 0 0 0 : cpustat 24 37 55 0
RAW 2 8 452 8 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 14 8 1 0 0 0 0 0 0 : cpustat 31 2 31 0
UDP 20 24 460 8 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 255 24 4 1 0 0 0 0 0 : cpustat 186 59 225 0
tw_sock_TCP 0 0 108 36 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 272 16 17 17 0 0 0 0 0 : cpustat 0 17 17 0
request_sock_TCP 0 0 72 53 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 288 16 18 18 0 0 0 0 0 : cpustat 1 18 19 0
TCP 10 14 1064 7 2 : tunables 24 12 0 : slabdata 2 2 0 : globalstat 32 14 2 0 0 0 0 0 0 : cpustat 38 6 34 0
sgpool-128 32 33 2060 3 2 : tunables 24 12 0 : slabdata 11 11 0 : globalstat 33 33 11 0 0 0 0 0 0 : cpustat 21 11 0 0
sgpool-64 32 35 1036 7 2 : tunables 24 12 0 : slabdata 5 5 0 : globalstat 35 35 5 0 0 0 0 0 0 : cpustat 27 5 0 0
sgpool-32 32 35 524 7 1 : tunables 32 16 0 : slabdata 5 5 0 : globalstat 35 35 5 0 0 0 0 0 0 : cpustat 27 5 0 0
sgpool-16 32 42 268 14 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 42 42 3 0 0 0 0 0 0 : cpustat 29 3 0 0
sgpool-8 32 56 140 28 1 : tunables 32 16 0 : slabdata 2 2 0 : globalstat 44 44 2 0 0 0 0 0 0 : cpustat 29 3 0 0
scsi_io_context 0 0 116 33 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
blkdev_ioc 23 92 40 92 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 352 24 1 0 0 0 0 0 0 : cpustat 41 22 54 0
blkdev_queue 10 12 952 4 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 12 12 3 0 0 0 0 0 0 : cpustat 7 3 0 0
blkdev_requests 21 21 188 21 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 683 63 8 5 0 0 0 0 0 : cpustat 10712 50 10737 17
biovec-256 1 2 3084 2 2 : tunables 24 12 0 : slabdata 1 1 0 : globalstat 2 2 1 0 0 0 0 0 0 : cpustat 0 1 0 0
biovec-128 1 5 1548 5 2 : tunables 24 12 0 : slabdata 1 1 0 : globalstat 5 5 1 0 0 0 0 0 0 : cpustat 0 1 0 0
biovec-64 2 5 780 5 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 5 5 1 0 0 0 0 0 0 : cpustat 1 1 0 0
biovec-16 4 19 204 19 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 16 16 1 0 0 0 0 0 0 : cpustat 3 1 0 0
biovec-4 4 63 60 63 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 16 16 1 0 0 0 0 0 0 : cpustat 3 1 0 0
biovec-1 20 145 24 145 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 107638 2142 170 1 0 1 0 0 0 : cpustat 158510 6835 158646 6695
bio 272 300 76 50 1 : tunables 32 16 0 : slabdata 6 6 0 : globalstat 107234 2382 687 2 0 1 0 0 0 : cpustat 158478 7119 158687 6654
sock_inode_cache 51 55 340 11 1 : tunables 32 16 0 : slabdata 5 5 0 : globalstat 294 55 5 0 0 0 0 0 0 : cpustat 442 63 454 0
skbuff_fclone_cache 5 12 328 12 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 617 12 41 40 0 0 0 0 0 : cpustat 2091 52 2143 0
skbuff_head_cache 17 46 168 23 1 : tunables 32 16 0 : slabdata 2 2 0 : globalstat 464 177 13 2 0 1 0 0 0 : cpustat 361926 36 361936 26
file_lock_cache 0 0 104 37 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 832 19 21 21 0 0 0 0 0 : cpustat 5660 52 5712 0
proc_inode_cache 180 180 320 12 1 : tunables 32 16 0 : slabdata 15 15 0 : globalstat 1671 192 60 7 0 1 0 0 0 : cpustat 3044 135 2986 24
sigqueue 0 0 156 25 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 288 16 18 18 0 0 0 0 0 : cpustat 370 18 388 0
radix_tree_node 401 624 288 13 1 : tunables 32 16 0 : slabdata 48 48 0 : globalstat 3913 715 55 0 0 0 0 0 0 : cpustat 10265 268 9989 147
bdev_cache 2 9 404 9 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 25 9 1 0 0 0 0 0 0 : cpustat 0 3 1 0
sysfs_dir_cache 3965 4020 56 67 1 : tunables 32 16 0 : slabdata 60 60 0 : globalstat 4009 3969 60 0 0 0 0 0 0 : cpustat 3742 298 75 0
mnt_cache 22 31 124 31 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 73 31 1 0 0 0 0 0 0 : cpustat 18 5 1 0
inode_cache 2084 2106 304 13 1 : tunables 32 16 0 : slabdata 162 162 0 : globalstat 3572 2912 226 13 0 2 0 0 0 : cpustat 2872 272 1024 45
dentry_cache 3430 3752 140 28 1 : tunables 32 16 0 : slabdata 134 134 0 : globalstat 11115 4412 159 0 0 1 0 0 0 : cpustat 24311 738 21251 383
filp 350 504 140 28 1 : tunables 32 16 0 : slabdata 18 18 0 : globalstat 11935 812 47 0 0 0 0 0 0 : cpustat 271314 759 271024 717
names_cache 5 5 4096 1 1 : tunables 24 12 0 : slabdata 5 5 0 : globalstat 20 5 16 11 0 0 0 0 0 : cpustat 317273 19 317292 0
idr_layer_cache 109 130 148 26 1 : tunables 32 16 0 : slabdata 5 5 0 : globalstat 154 124 5 0 0 0 0 0 0 : cpustat 103 12 6 0
buffer_head 31 354 64 59 1 : tunables 32 16 0 : slabdata 6 6 0 : globalstat 115254 8984 396 1 0 0 0 0 0 : cpustat 157199 7328 157412 7093
mm_struct 30 30 396 10 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 565 30 3 0 0 0 0 0 0 : cpustat 3009 82 3067 0
vm_area_struct 960 1080 96 40 1 : tunables 32 16 0 : slabdata 27 27 0 : globalstat 29710 1072 47 8 0 1 0 0 0 : cpustat 69580 1880 68835 1666
fs_cache 38 84 44 84 1 : tunables 32 16 0 : slabdata 1 1 0 : globalstat 992 40 1 0 0 0 0 0 0 : cpustat 2805 62 2844 0
files_cache 39 60 196 20 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 1088 96 5 1 0 1 0 0 0 : cpustat 2797 71 2838 6
signal_cache 55 55 352 11 1 : tunables 32 16 0 : slabdata 5 5 0 : globalstat 825 55 5 0 0 0 0 0 0 : cpustat 2823 68 2848 0
sighand_cache 48 48 1296 3 1 : tunables 24 12 0 : slabdata 16 16 0 : globalstat 459 51 17 1 0 0 0 0 0 : cpustat 2800 91 2848 0
task_struct 102 102 672 6 1 : tunables 32 16 0 : slabdata 17 17 0 : globalstat 695 102 28 7 0 5 0 0 0 : cpustat 2935 120 2954 5
anon_vma 342 507 20 169 1 : tunables 32 16 0 : slabdata 3 3 0 : globalstat 2378 362 5 2 0 1 0 0 0 : cpustat 9952 151 9734 37
pid 112 156 48 78 1 : tunables 32 16 0 : slabdata 2 2 0 : globalstat 1374 117 2 0 0 0 0 0 0 : cpustat 2969 86 2952 6
size-131072(DMA) 0 0 131072 1 32 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-131072 0 0 131072 1 32 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 2 1 2 2 0 0 0 0 0 : cpustat 2 2 4 0
size-65536(DMA) 0 0 65536 1 16 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-65536 3 3 65536 1 16 : tunables 8 4 0 : slabdata 3 3 0 : globalstat 3 3 3 0 0 0 0 0 0 : cpustat 0 3 0 0
size-32768(DMA) 0 0 32768 1 8 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-32768 3 3 32768 1 8 : tunables 8 4 0 : slabdata 3 3 0 : globalstat 7 4 5 2 0 0 0 0 0 : cpustat 11 7 15 0
size-16384(DMA) 0 0 16384 1 4 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-16384 0 0 16384 1 4 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 202 3 111 111 0 0 0 0 0 : cpustat 32238 186 32424 0
size-8192(DMA) 0 0 8192 1 2 : tunables 8 4 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-8192 1 1 8192 1 2 : tunables 8 4 0 : slabdata 1 1 0 : globalstat 57 5 47 46 0 0 0 0 0 : cpustat 165148 57 165204 0
size-4096(DMA) 0 0 4096 1 1 : tunables 24 12 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-4096 24 24 4096 1 1 : tunables 24 12 0 : slabdata 24 24 0 : globalstat 126 26 119 95 0 0 0 0 0 : cpustat 2011 126 2114 0
size-2048(DMA) 0 0 2060 3 2 : tunables 24 12 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-2048 36 36 2060 3 2 : tunables 24 12 0 : slabdata 12 12 0 : globalstat 44 36 13 1 0 0 0 0 0 : cpustat 143931 16 143916 0
size-1024(DMA) 0 0 1036 7 2 : tunables 24 12 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-1024 59 70 1036 7 2 : tunables 24 12 0 : slabdata 10 10 0 : globalstat 363 203 47 6 0 3 0 0 0 : cpustat 169242 55 169236 23
size-512(DMA) 0 0 524 7 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-512 117 133 524 7 1 : tunables 32 16 0 : slabdata 19 19 0 : globalstat 249 133 19 0 0 0 0 0 0 : cpustat 63934 29 63860 7
size-256(DMA) 0 0 268 14 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-256 1909 1918 268 14 1 : tunables 32 16 0 : slabdata 137 137 0 : globalstat 53871 3052 751 2 0 2 0 0 0 : cpustat 74463 3523 72885 3192
size-192(DMA) 0 0 204 19 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-192 815 817 204 19 1 : tunables 32 16 0 : slabdata 43 43 0 : globalstat 1723 816 66 23 0 0 0 0 0 : cpustat 77408 147 76757 0
size-128(DMA) 0 0 140 28 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-128 2325 2352 140 28 1 : tunables 32 16 0 : slabdata 84 84 0 : globalstat 3989 2343 85 1 0 0 0 0 0 : cpustat 3137 304 1116 0
size-96(DMA) 0 0 108 36 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-96 1430 1512 108 36 1 : tunables 32 16 0 : slabdata 42 42 0 : globalstat 3610 1492 43 1 0 1 0 0 0 : cpustat 8933 261 7713 66
size-64(DMA) 0 0 76 50 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-32(DMA) 0 0 44 84 1 : tunables 32 16 0 : slabdata 0 0 0 : globalstat 0 0 0 0 0 0 0 0 0 : cpustat 0 0 0 0
size-64 768 1250 76 50 1 : tunables 32 16 0 : slabdata 25 25 0 : globalstat 11765 8666 188 0 0 0 0 0 0 : cpustat 497437 936 496932 686
size-32 3539 4284 44 84 1 : tunables 32 16 0 : slabdata 51 51 0 : globalstat 46009 23232 445 1 0 0 0 0 0 : cpustat 55423 3262 52563 2599
kmem_cache 120 120 160 24 1 : tunables 32 16 0 : slabdata 5 5 0 : globalstat 121 120 5 0 0 0 0 0 0 : cpustat 81 39 0 0
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: ubifs: partition won't mount: duplicate sqnum in replay ???
2008-12-30 18:32 Cal Page
@ 2008-12-31 17:14 ` Artem Bityutskiy
0 siblings, 0 replies; 8+ messages in thread
From: Artem Bityutskiy @ 2008-12-31 17:14 UTC (permalink / raw)
To: Cal Page; +Cc: ubifs
On Tue, 30 Dec 2008, Cal Page wrote:
> If /var/log is on the nand, and I do a (cd /var/log; tar -cvf
> /someotherdevice.tar .) I notice ubifs_shrinker get called. nr is 128, and
> clean_zn_cnt starts out at 1500 or so. But after tar has run a bit,
> clean_zn_cnt bobbles around 400 or so. If I then kill the tar, and wait about
> a minuite, clean_zn_cnt makes it back up to the 1500.
Do you have debugging checks disabled? Disable them, because otherwise
they will pull whole UBIFS index into RAM all the time. This is because
they check whole index for consistency all the time.
> Where is the code that recycles the memory?
Err, in shrinker.c.
There are several things related to UBIFS which take memory and may be
shrunk: TNC cache, dentry cache, inode cache, and page cache. Only the
TNC cache eviction is implemented by UBIFS. UBIFS just registers the
shrinker, and then the MM (memory management) kernel subsystem calls it
whenever it thinks some memory should be freed. The other stuff is
fully implemented in VFS/MM subsystems.
Sd, TNC was my guess. Most of the ram is usually taken by page cache
(which caches file's data). But it have to be freed on memory pressure,
and this mechanism should work well.
Note, each znode takes 256 bytes. You do not seem to have too many of
them.
> Is it the per file system daemons
> that get created on mount?
Usually what happens is that someone (anyone) allocates memory using
kmalloc/page_alloc/etc, and if the core MM system sees that there is no
free memory, it starts producing it by freeing the page cache and other
caches, calling registered shrinkers, etc.
> How can I change the memory hold timers in UBIFS
> so it'll let go a lot earlier?
AFAIK, there are no timers. Things are freed when free ram is about to
end. All decisions are made by kernel memory management (mm) subsystem.
I do not much details about mm.
Artem.
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Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-12-29 15:54 ubifs: partition won't mount: duplicate sqnum in replay ??? Cal Page
2008-12-30 8:51 ` Adrian Hunter
2008-12-30 11:48 ` Artem Bityutskiy
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2008-12-30 12:11 Cal Page
2008-12-30 12:27 ` Artem Bityutskiy
2008-12-30 15:29 ` Artem Bityutskiy
2008-12-30 18:32 Cal Page
2008-12-31 17:14 ` Artem Bityutskiy
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