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Message-ID: <20140130035440.GB12017@localhost>
Date: Thu, 30 Jan 2014 11:54:40 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Steven Whitehouse <swhiteho@...hat.com>
Cc: Al Viro <viro@...iv.linux.org.uk>, linux-fsdevel@...r.kernel.org,
"linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [btrfs/i_size] xfstests generic/299 TFAIL
Hi Steven,
We noticed xfstests generic/299 TFAIL on btrfs since
commit 9fe55eea7e4b444bafc42fa0000cc2d1d2847275
Author: Steven Whitehouse <swhiteho@...hat.com>
AuthorDate: Fri Jan 24 14:42:22 2014 +0000
Commit: Al Viro <viro@...iv.linux.org.uk>
CommitDate: Sun Jan 26 08:26:42 2014 -0500
Fix race when checking i_size on direct i/o read
More changes that might help debugging:
2796e4cec525a2b 9fe55eea7e4b444bafc42fa00
--------------- -------------------------
0 +Inf% 1 ~ 0% xfstests.generic.299.fail
6601 ~11% +55547.3% 3673721 ~18% slabinfo.btrfs_extent_map.active_objs
49 ~ 6% +6181.0% 3115 ~19% slabinfo.btrfs_extent_buffer.num_slabs
85 ~18% +776.4% 750 ~14% slabinfo.buffer_head.num_slabs
30584 ~ 0% +1105.5% 368688 ~ 0% time.maximum_resident_set_size
85 ~18% +776.4% 750 ~14% slabinfo.buffer_head.active_slabs
3367 ~18% +769.2% 29268 ~14% slabinfo.buffer_head.num_objs
3304 ~19% +783.1% 29180 ~14% slabinfo.buffer_head.active_objs
49 ~ 6% +6181.0% 3115 ~19% slabinfo.btrfs_extent_buffer.active_slabs
1249 ~ 6% +6134.8% 77897 ~19% slabinfo.btrfs_extent_buffer.num_objs
1102 ~ 3% +6957.3% 77771 ~19% slabinfo.btrfs_extent_buffer.active_objs
255 ~11% +55224.5% 141298 ~18% slabinfo.btrfs_extent_map.num_slabs
255 ~11% +55224.5% 141298 ~18% slabinfo.btrfs_extent_map.active_slabs
6645 ~10% +55181.5% 3673784 ~18% slabinfo.btrfs_extent_map.num_objs
2850 ~ 7% +434.8% 15242 ~ 9% slabinfo.ext4_extent_status.num_objs
2841 ~ 8% +429.5% 15047 ~10% slabinfo.ext4_extent_status.active_objs
44659 ~ 2% +1329.9% 638573 ~17% meminfo.SReclaimable
61541 ~ 2% +964.6% 655186 ~17% meminfo.Slab
27 ~ 8% +447.8% 149 ~ 9% slabinfo.ext4_extent_status.num_slabs
9188 ~ 3% +666.4% 70420 ~ 9% interrupts.TLB
2642 ~ 5% +425.0% 13874 ~14% slabinfo.ext3_xattr.active_objs
2662 ~ 5% +424.9% 13973 ~14% slabinfo.ext3_xattr.num_objs
57 ~ 5% +428.2% 303 ~14% slabinfo.ext3_xattr.num_slabs
57 ~ 5% +428.2% 303 ~14% slabinfo.ext3_xattr.active_slabs
27 ~ 8% +447.8% 149 ~ 9% slabinfo.ext4_extent_status.active_slabs
0 ~ 0% +Inf% 138193 ~ 0% proc-vmstat.unevictable_pgs_culled
379 ~13% +45684.1% 173705 ~ 0% proc-vmstat.pgdeactivate
8107 ~16% +3196.9% 267299 ~ 0% proc-vmstat.pgactivate
11160 ~ 2% +1329.0% 159479 ~17% proc-vmstat.nr_slab_reclaimable
6577 ~ 3% +387.4% 32059 ~24% proc-vmstat.nr_tlb_remote_flush
6684 ~ 3% +380.8% 32142 ~24% proc-vmstat.nr_tlb_remote_flush_received
15707 ~31% +282.3% 60043 ~17% meminfo.Dirty
6380554 ~ 0% +259.8% 22954274 ~ 7% proc-vmstat.pgfault
22901 ~ 3% +290.9% 89514 ~18% proc-vmstat.nr_active_file
4067 ~29% +268.0% 14966 ~17% proc-vmstat.nr_dirty
91655 ~ 3% +291.3% 358640 ~18% meminfo.Active(file)
3088362 ~ 0% +211.5% 9618749 ~ 6% proc-vmstat.pgalloc_dma32
3090040 ~ 0% +211.3% 9619232 ~ 6% proc-vmstat.pgfree
3046221 ~ 0% +211.2% 9479249 ~ 6% proc-vmstat.numa_local
3046221 ~ 0% +211.2% 9479249 ~ 6% proc-vmstat.numa_hit
23371 ~ 3% +218.6% 74472 ~29% softirqs.TIMER
51894 ~ 2% +202.5% 156994 ~23% interrupts.LOC
207400 ~ 2% +142.2% 502386 ~10% meminfo.Active
101124 ~ 1% +151.8% 254632 ~17% proc-vmstat.nr_tlb_local_flush_all
30294 ~ 8% -50.7% 14930 ~17% slabinfo.btrfs_extent_state.active_objs
725 ~ 7% -49.5% 366 ~15% slabinfo.btrfs_extent_state.num_slabs
725 ~ 7% -49.5% 366 ~15% slabinfo.btrfs_extent_state.active_slabs
30490 ~ 7% -49.5% 15409 ~15% slabinfo.btrfs_extent_state.num_objs
63861 ~11% +90.7% 121757 ~ 9% softirqs.RCU
849659 ~ 1% +105.7% 1747978 ~15% proc-vmstat.nr_tlb_local_flush_one
1034500 ~ 0% +94.1% 2007885 ~ 3% proc-vmstat.pgpgin
232831 ~14% +90.8% 444281 ~13% interrupts.RES
169 ~ 3% +91.2% 323 ~15% uptime.boot
7332 ~ 8% +104.1% 14968 ~36% softirqs.SCHED
59342 ~17% +60.4% 95197 ~23% interrupts.43:PCI-MSI-edge.virtio1-requests
555 ~ 8% +70.4% 946 ~13% slabinfo.blkdev_requests.num_objs
526 ~ 7% +65.0% 867 ~18% slabinfo.kmalloc-2048.active_objs
525 ~ 8% +66.0% 872 ~15% slabinfo.blkdev_requests.active_objs
648109 ~ 1% -36.8% 409436 ~ 9% proc-vmstat.nr_free_pages
2594146 ~ 1% -36.9% 1635776 ~ 9% meminfo.MemFree
603 ~ 8% +60.5% 968 ~16% slabinfo.kmalloc-2048.num_objs
2587973 ~ 1% -36.7% 1637486 ~ 9% vmstat.memory.free
433 ~ 4% +71.8% 745 ~25% uptime.idle
104603 ~ 0% +49.4% 156274 ~ 9% proc-vmstat.nr_unevictable
418413 ~ 0% +49.3% 624828 ~ 9% meminfo.Unevictable
81418 ~ 0% -25.4% 60757 ~ 2% proc-vmstat.nr_dirty_background_threshold
162839 ~ 0% -25.4% 121516 ~ 2% proc-vmstat.nr_dirty_threshold
956619 ~12% +30.5% 1248532 ~11% proc-vmstat.nr_written
968744 ~12% +29.9% 1258046 ~11% proc-vmstat.nr_dirtied
12837 ~ 7% -23.1% 9877 ~17% interrupts.IWI
305754 ~ 3% +27.7% 390352 ~ 4% proc-vmstat.nr_file_pages
2490 ~11% +24.1% 3089 ~ 6% slabinfo.kmalloc-96.num_objs
1221055 ~ 3% +19.2% 1455334 ~ 5% meminfo.Cached
1223056 ~ 3% +19.0% 1455025 ~ 5% vmstat.memory.cache
172852 ~ 6% -20.0% 138300 ~12% proc-vmstat.nr_inactive_file
689411 ~ 5% -19.7% 553897 ~12% meminfo.Inactive(file)
2471 ~11% +18.8% 2935 ~ 6% slabinfo.kmalloc-96.active_objs
711198 ~ 5% -18.6% 579097 ~12% meminfo.Inactive
42.28 ~21% +367.9% 197.85 ~10% time.system_time
5.06 ~ 6% +616.9% 36.29 ~ 9% time.user_time
5711222 ~ 0% +279.1% 21648853 ~ 8% time.minor_page_faults
32 ~16% +148.4% 80 ~19% time.percent_of_cpu_this_job_got
85616 ~27% +110.2% 179944 ~18% time.involuntary_context_switches
2067193 ~ 0% +94.1% 4013246 ~ 3% time.file_system_inputs
144 ~ 4% +106.7% 298 ~16% time.elapsed_time
144296 ~ 4% -53.4% 67248 ~17% vmstat.io.bo
41865918 ~ 2% -11.7% 36960769 ~ 7% time.file_system_outputs
Thanks,
Fengguang
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