ext4问题大家有碰到过吗?

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Chunlin Zhang

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Mar 17, 2015, 4:18:56 AM3/17/15

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目前不知道怎么处理

Ubuntu 12.04.4 LTS

//话说ext4有这么不稳定吗?

服务器死机了,重启以后发现 df 输出有问题

~# df -h

文件系统容量已用可用已用% 挂载点

/dev/sda1 92G 13G 75G 14% /

udev 16G 4.0K 16G 1% /dev

tmpfs 6.3G 2.6M 6.3G 1% /run

none 5.0M 0 5.0M 0% /run/lock

none 16G 0 16G 0% /run/shm

/dev/sda4 19T -67T 84T - /home

kern.log有异常:

Mar 17 10:56:36 xmab kernel: [ 305.525006] EXT4-fs (sda4): error count: 170

Mar 17 10:56:36 xmab kernel: [ 305.525012] EXT4-fs (sda4): initial error at 1420343872: ext4_mb_generate_buddy:755

Mar 17 10:56:36 xmab kernel: [ 305.525015] EXT4-fs (sda4): last error at 1423516170: ext4_mb_generate_buddy:755

Mar 17 11:20:57 xmab kernel: [ 1768.325442] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

Mar 17 11:21:01 xmab kernel: [ 1772.540683] igb: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX

Mar 17 11:21:01 xmab kernel: [ 1772.540911] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

Mar 17 11:32:54 xmab kernel: [ 2485.984957] EXT4-fs error (device sda4): ext4_mb_generate_buddy:755: group 136915, 32768 clusters in bitmap, 3789 in gd

Mar 17 11:32:54 xmab kernel: [ 2486.232799] JBD2: Spotted dirty metadata buffer (dev = sda4, blocknr = 0). There's a risk of filesystem corruption in case of system crash.

Mar 17 11:32:54 xmab kernel: [ 2486.232927] JBD2: Spotted dirty metadata buffer (dev = sda4, blocknr = 0). There's a risk of filesystem corruption in case of system crash.

Mar 17 11:40:15 xmab kernel: [ 2927.184695] EXT4-fs error (device sda4): ext4_mb_generate_buddy:755: group 136917, 32768 clusters in bitmap, 10463 in gd

Mar 17 12:28:00 xmab kernel: [ 5795.142079] perf samples too long (2516 > 2500), lowering kernel.perf_event_max_sample_rate to 50000

Mar 17 13:26:50 xmab kernel: [ 9328.172218] EXT4-fs error (device sda4): ext4_mb_generate_buddy:755: group 137479, 3514 clusters in bitmap, 3503 in gd

Mar 17 13:26:50 xmab kernel: [ 9328.191594] EXT4-fs error (device sda4): ext4_mb_generate_buddy:755: group 137480, 18656 clusters in bitmap, 18425 in gd

Mar 17 13:51:11 xmab kernel: [10790.728154] EXT4-fs error (device sda4): ext4_mb_generate_buddy:755: group 137556, 8915 clusters in bitmap, 4294948734 in gd

Mar 17 13:51:11 xmab kernel: [10790.736153] EXT4-fs error (device sda4): ext4_mb_generate_buddy:755: group 137557, 17771 clusters in bitmap, 13247 in gd

muxueqz(张明源)

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Mar 18, 2015, 11:34:52 PM3/18/15

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没遇到过，fsck一下看看？

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