Linux

FreeNAS / CentOS - 等待寫入

  • September 2, 2016

我有一個 FreeNAS (9.10-STABLE-201605240427) 伺服器和幾個 CentOS 6.4 盒子。但是，無論是使用 CIFS 還是 NFS（3 和 4）掛載，CentOS 機器似乎都無法將任何大於 4KB 的文件寫入 FreeNAS 掛載。

出於某種奇怪的原因，每當您嘗試編寫大於 4KB（頁面大小）的文件時，似乎都會出現某種死鎖。

當我嘗試將 /bin/ls 複製到掛載中時，這是來自 CentOS 機器的 NFS 調試日誌的摘錄。

Sep  2 22:13:20 RAX-NERVE kernel: NFS: nfs_update_inode(0:17/4 fh_crc=0x2877d5c3 ct=2 info=0x227e7f)
Sep  2 22:13:20 RAX-NERVE kernel: NFS: permission(0:17/4), mask=0x1, res=0
Sep  2 22:13:20 RAX-NERVE kernel: NFS: atomic_lookup(0:17/4), ls
Sep  2 22:13:20 RAX-NERVE kernel: NFS: lookup(/ls)
Sep  2 22:13:20 RAX-NERVE kernel: NFS call  lookup ls
Sep  2 22:13:20 RAX-NERVE kernel: encode_compound: tag=
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_type: type=0100000
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_change: change attribute=8013396
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_size: file size=0
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_fsid: fsid=(0x76431d7a/0x9cf9cdde)
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_fileid: fileid=41
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_fs_locations: fs_locations done, error = 0
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_mode: file mode=0775
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_nlink: nlink=1
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_owner: uid=99
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_group: gid=99
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_rdev: rdev=(0x3:0xc7)
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_space_used: space used=512
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_time_access: atime=502412
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_time_metadata: ctime=1472850295
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_time_modify: mtime=1472850295
Sep  2 22:13:20 RAX-NERVE kernel: decode_attr_mounted_on_fileid: fileid=41
Sep  2 22:13:20 RAX-NERVE kernel: decode_getfattr_attrs: xdr returned -2097152
Sep  2 22:13:20 RAX-NERVE kernel: decode_getfattr_generic: xdr returned 0
Sep  2 22:13:20 RAX-NERVE kernel: NFS reply lookup: 0
Sep  2 22:13:20 RAX-NERVE kernel: NFS: nfs_fhget(0:17/41 fh_crc=0x2947d423 ct=1)
Sep  2 22:13:20 RAX-NERVE kernel: NFS: dentry_delete(/ls, 0)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: permission(0:17/4), mask=0x1, res=0
Sep  2 22:13:21 RAX-NERVE kernel: --> nfs_put_client({2})
Sep  2 22:13:21 RAX-NERVE kernel: encode_compound: tag=
Sep  2 22:13:21 RAX-NERVE kernel: encode_compound: tag=
Sep  2 22:13:21 RAX-NERVE kernel: nfs4_schedule_state_renewal: requeueing work. Lease period = 48
Sep  2 22:13:21 RAX-NERVE kernel: --> nfs_put_client({3})
Sep  2 22:13:21 RAX-NERVE kernel: --> nfs_put_client({2})
Sep  2 22:13:21 RAX-NERVE kernel: <-- nfs4_setup_sequence status=0
Sep  2 22:13:21 RAX-NERVE kernel: encode_compound: tag=
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_type: type=0100000
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_change: change attribute=8013396
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_size: file size=0
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_fsid: fsid=(0x76431d7a/0x9cf9cdde)
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_fileid: fileid=41
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_fs_locations: fs_locations done, error = 0
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_mode: file mode=0775
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_nlink: nlink=1
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_owner: uid=-2
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_group: gid=-2
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_rdev: rdev=(0x3:0xc7)
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_space_used: space used=512
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_time_access: atime=502412
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_time_metadata: ctime=1472850295
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_time_modify: mtime=1472850295
Sep  2 22:13:21 RAX-NERVE kernel: decode_attr_mounted_on_fileid: fileid=41
Sep  2 22:13:21 RAX-NERVE kernel: decode_getfattr_attrs: xdr returned -2097152
Sep  2 22:13:21 RAX-NERVE kernel: decode_getfattr_generic: xdr returned 0
Sep  2 22:13:21 RAX-NERVE kernel: encode_compound: tag=
Sep  2 22:13:21 RAX-NERVE kernel: NFS: nfs_update_inode(0:17/41 fh_crc=0x2947d423 ct=3 info=0x227e7f)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: nfs_fhget(0:17/41 fh_crc=0x2947d423 ct=3)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: nfsi 0xffff880117664930 disabling cache
Sep  2 22:13:21 RAX-NERVE kernel: NFS: permission(0:17/41), mask=0x22, res=0
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write(/ls, 109208@0)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@0)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@0)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@0)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 4096)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@4096)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@4096)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@4096)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 8192)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@8192)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@8192)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@8192)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 12288)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@12288)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@12288)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@12288)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 16384)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@16384)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@16384)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@16384)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 20480)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@20480)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@20480)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@20480)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 24576)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@24576)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@24576)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@24576)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 28672)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@28672)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@28672)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@28672)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 32768)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@32768)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@32768)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@32768)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 36864)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@36864)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@36864)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@36864)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 40960)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@40960)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@40960)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@40960)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 45056)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@45056)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@45056)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@45056)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 49152)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@49152)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@49152)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@49152)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 53248)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@53248)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@53248)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@53248)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 57344)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@57344)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@57344)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@57344)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 61440)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@61440)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@61440)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@61440)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 65536)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@65536)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@65536)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@65536)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 69632)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@69632)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@69632)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@69632)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 73728)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@73728)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@73728)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@73728)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 77824)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@77824)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@77824)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@77824)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 81920)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@81920)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@81920)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@81920)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 86016)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@86016)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@86016)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@86016)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 90112)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@90112)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@90112)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@90112)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 94208)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@94208)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@94208)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@94208)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 98304)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@98304)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@98304)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@98304)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 102400)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 4096@102400)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 4096@102400)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 4096@102400)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 106496)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_begin(/ls(41), 2712@106496)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: write_end(/ls(41), 2712@106496)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage(/ls 2712@106496)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:       nfs_updatepage returns 0 (isize 109208)
Sep  2 22:13:21 RAX-NERVE kernel: NFS: flush(/ls)
Sep  2 22:13:21 RAX-NERVE kernel: NFS:     0 initiated write call (req 0:17/41, 109208 bytes @ offset 0)
Sep  2 22:13:21 RAX-NERVE kernel: <-- nfs4_setup_sequence status=0
Sep  2 22:13:21 RAX-NERVE kernel: encode_compound: tag=
Sep  2 22:14:09 RAX-NERVE kernel: nfs4_renew_state: start
Sep  2 22:14:09 RAX-NERVE kernel: nfs4_renew_state: done
Sep  2 22:15:33 RAX-NERVE kernel: INFO: task cp:2850 blocked for more than 120 seconds.
Sep  2 22:15:33 RAX-NERVE kernel:      Not tainted 2.6.32-642.4.2.el6.x86_64 #1
Sep  2 22:15:33 RAX-NERVE kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep  2 22:15:33 RAX-NERVE kernel: cp            D 0000000000000003     0  2850   2296 0x00000080
Sep  2 22:15:33 RAX-NERVE kernel: ffff88012c3afc78 0000000000000082 ffff88012c3afbc8 ffffffffa051b3ee
Sep  2 22:15:33 RAX-NERVE kernel: ffff88012c3afbf8 ffffffffa051bc90 ffff88012c3afbe8 ffff88012c3afc28
Sep  2 22:15:33 RAX-NERVE kernel: ffff88012c77bc70 ffff880117664af8 ffff88012798fad8 ffff88012c3affd8
Sep  2 22:15:33 RAX-NERVE kernel: Call Trace:
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffffa051b3ee>] ? rpc_make_runnable+0x7e/0x80 [sunrpc]
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffffa051bc90>] ? rpc_execute+0x50/0xa0 [sunrpc]
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff8112e3f0>] ? sync_page+0x0/0x50
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff81549163>] io_schedule+0x73/0xc0
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff8112e42d>] sync_page+0x3d/0x50
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff81549c4f>] __wait_on_bit+0x5f/0x90
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff8112e663>] wait_on_page_bit+0x73/0x80
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff810a6920>] ? wake_bit_function+0x0/0x50
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff811447a5>] ? pagevec_lookup_tag+0x25/0x40
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff8112ea8b>] wait_on_page_writeback_range+0xfb/0x190
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff8112ec58>] filemap_write_and_wait_range+0x78/0x90
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff811cc92e>] vfs_fsync_range+0x7e/0x100
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff811cca1d>] vfs_fsync+0x1d/0x20
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffffa05bb9e0>] nfs_file_flush+0x70/0xa0 [nfs]
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff811967fc>] filp_close+0x3c/0x90
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff811968f5>] sys_close+0xa5/0x100
Sep  2 22:15:33 RAX-NERVE kernel: [<ffffffff8100b0d2>] system_call_fastpath+0x16/0x1b

我完全不知道是什麼原因造成的。Windows 和 OS X 客戶端都可以毫無問題地從這些分區掛載和讀/寫。這些設備直接插入同一個交換機，除了 VLAN 標記/虛擬介面之外，網路根本沒有理由出現故障。

能夠在 Ubuntu 機器上複製該問題，所以我認為問題出在 FreeNAS 伺服器本身，但重新安裝並沒有解決問題。

設法解決它。

FreeNAS 預設設置 MTU 為 9000，網卡不支持。因此，一堆數據包可能被丟棄，因此掛起。

解決方法是將“mtu 1400”添加到網路介面設置中。

這是一個網路問題。希望這可以幫助處於相同位置的人。

引用自：https://unix.stackexchange.com/questions/307546

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