From: zhuyj <zyjzyj2000@gmail.com>
To: zhuyj <zyjzyj2000@gmail.xom>, linux-ext4@vger.kernel.org
Subject: Re: a problem about ext4.
Date: Tue, 12 Mar 2013 15:49:10 +0800 [thread overview]
Message-ID: <513EDDF6.3040206@gmail.xom> (raw)
In-Reply-To: <513EDC2B.9020604@gmail.xom>
Hi, all
Almost 2.6.3x has this problem. Is it a problem?
Any reply is appreciated.
Zhuyj
On 03/12/2013 03:41 PM, zhuyj wrote:
> Hi, all
>
> I install Ubuntu 11.04 on Dell-Latitude-D630.
> Linux kernel is 2.6.39.4(I compiled)
>
> uname -a
> Linux Dell-Latitude-D630 2.6.39.4-zhuyj26394 #2 SMP Tue Mar 12
> 13:23:06 CST 2013 i686 i686 i386 GNU/Linux
>
> I followed these steps:
>
> ****************************Begin***************************************
> 1. get ltp-full-20130109.bz2 and run "./configure;make", then we will
> get fsstress;
>
> 2. mount -t tmpfs -o size=512m tmpfs /tmp
>
> 3. dd if=/dev/zero of=/tmp/img bs=1024 count=$((500*1024))
>
> 4. ls -lah /tmp/img
>
> total 501M
> drwxrwxrwt 2 root root 60 2013-03-12 15:18 .
> drwxr-xr-x 23 root root 4.0K 2013-03-12 13:09 ..
> -rw-r--r-- 1 root root 500M 2013-03-12 15:18 img
>
> 5. df
>
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/sda1 113317544 6994416 100566868 7% /
> none 1023772 696 1023076 1% /dev
> none 1030440 80 1030360 1% /dev/shm
> none 1030440 92 1030348 1% /var/run
> none 1030440 0 1030440 0% /var/lock
> tmpfs 524288 512504 11784 98% /tmp
>
> 6. mkfs.ext4 /tmp/img
>
> mke2fs 1.41.14 (22-Dec-2010)
> /tmp/img is not a block special device.
> Proceed anyway? (y,n) y
> Filesystem label=
> OS type: Linux
> Block size=1024 (log=0)
> Fragment size=1024 (log=0)
> Stride=0 blocks, Stripe width=0 blocks
> 128016 inodes, 512000 blocks
> 25600 blocks (5.00%) reserved for the super user
> First data block=1
> Maximum filesystem blocks=67633152
> 63 block groups
> 8192 blocks per group, 8192 fragments per group
> 2032 inodes per group
> Superblock backups stored on blocks:
> 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
>
> Writing inode tables: done
> Creating journal (8192 blocks): done
> Writing superblocks and filesystem accounting information: done
>
> This filesystem will be automatically checked every 30 mounts or
> 180 days, whichever comes first. Use tune2fs -c or -i to override.
>
> 7. mkdir /tmp/mnt
>
> 8. mount -t ext4 -o loop /tmp/img /tmp/mnt
>
> 9. df
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/sda1 113317544 6994424 100566860 7% /
> none 1023772 696 1023076 1% /dev
> none 1030440 80 1030360 1% /dev/shm
> none 1030440 92 1030348 1% /var/run
> none 1030440 0 1030440 0% /var/lock
> tmpfs 524288 512504 11784 98% /tmp
> /dev/loop0 495844 10510 459734 3% /tmp/mnt
>
> 10. cd /tmp/mnt; mkdir /tmp/mnt/tmp1 /tmp/mnt/tmp2; cp ~/fsstress
> /tmp/mnt
> ./fsstress -c -p 5 -n 10000 -d . -l 0 -s 10M &
> ./fsstress -c -p 5 -n 10000 -d ./tmp1 -l 0 -s 10M &
> ./fsstress -c -p 5 -n 10000 -d ./tmp2 -l 0 -s 10M &
>
> 11.when the following appears, run "ps;killall fsstress;ps"
> ./tmp1: No such file or directory
> ./tmp2: No such file or directory
>
> [2]- Exit 1 ./fsstress -c -p 5 -n 10000 -d ./tmp1 -l
> 0 -s 10M
> [3]+ Exit 1 ./fsstress -c -p 5 -n 10000 -d ./tmp2 -l
> 0 -s 10M
>
> These messages will appear:
>
> ps;killall fsstress;ps
> PID TTY TIME CMD
> 1366 pts/0 00:00:01 bash
> 1600 pts/0 00:00:00 fsstress
> 1633 pts/0 00:00:07 fsstress
> 1634 pts/0 00:00:06 fsstress
> 1635 pts/0 00:00:06 fsstress
> 1636 pts/0 00:00:07 fsstress
> 1637 pts/0 00:00:07 fsstress
> 1640 pts/0 00:00:00 ps
> [1]+ Terminated ./fsstress -c -p 5 -n 10000 -d . -l 0 -s
> 10M
> PID TTY TIME CMD
> 1366 pts/0 00:00:01 bash
> 1642 pts/0 00:00:00 ps
>
> 12. /bin/sync;/bin/echo 1 > /proc/sys/vm/drop_caches
>
> 13. rm -Rf p*;rm -Rf tmp*
>
> rm: cannot remove `p0': Directory not empty
> rm: cannot remove `p1/d99d/d9b4/da40/da71/da74': Directory not empty
> rm: cannot remove `p2/dc/d79/f56f': Input/output error
> rm: cannot remove `p2/dc/d79/f362': Input/output error
> rm: cannot remove `p2/dc/d79/c460': Input/output error
> rm: cannot remove `p2/dc/d79/cf4': Input/output error
> rm: cannot remove `p2/dc/d79/f3b0': Input/output error
> rm: cannot remove `p2/dc/d79/d107/d95e/d7f7/fb50': Input/output error
> rm: cannot remove `p2/dc/d79/d107/d95e/f99e': Input/output error
> rm: cannot remove `p2/dc/d79/d107/d95e/fc40': Input/output error
> rm: cannot remove `p2/dc/d79/d107/f7ab': Input/output error
> rm: cannot remove `p2/dc/d79/d107/d547/c843': Input/output error
> rm: cannot remove `p2/dc/d79/d107/d547/c871': Input/output error
> rm: cannot remove `p2/dc/d79/d107/fa77': Input/output error
> rm: cannot remove `p2/dc/d79/f12e': Input/output error
> rm: cannot remove `p2/dc/d79/c623': Input/output error
> rm: cannot remove `p2/dc/d79/f207': Input/output error
> rm: cannot remove `p2/dc/d79/c216': Input/output error
> rm: cannot remove `p2/dc/d79/f23d': Input/output error
> rm: cannot remove `p2/dc/d79/c250': Input/output error
> rm: cannot remove `p2/dc/d79/f274': Input/output error
> rm: cannot remove `p2/dc/d79/f285': Input/output error
> rm: cannot remove `p2/dc/d79/f2af': Input/output error
> rm: cannot remove `p2/dc/d79/c2d1': Input/output error
> rm: cannot remove `p2/dc/d79/c2ee': Input/output error
> rm: cannot remove `p2/dc/d79/c35a': Input/output error
> .....
>
> 14. run "dmesg"
>
> [ 469.002632] EXT4-fs warning (device loop0): dx_probe:364:
> Unrecognised inode hash code 12
> [ 469.002647] EXT4-fs warning (device loop0): dx_probe:472: Corrupt
> dir inode 8423, running e2fsck is recommended.
> [ 469.018830] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8926
> [ 469.019792] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8816
> [ 469.019950] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8570
> [ 469.020729] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 7814
> [ 469.021227] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 9259
> [ 469.048610] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #10178: comm rm: deleted inode referenced: 7791
> [ 469.049919] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #10177: comm rm: deleted inode referenced: 8100
> [ 469.053826] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #10177: comm rm: deleted inode referenced: 8822
> [ 469.060481] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8417: comm rm: deleted inode referenced: 8113
> [ 469.062336] EXT4-fs warning (device loop0): dx_probe:364:
> Unrecognised inode hash code 12
> [ 469.062349] EXT4-fs warning (device loop0): dx_probe:472: Corrupt
> dir inode 10163, running e2fsck is recommended.
> [ 469.065721] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #10163: comm rm: deleted inode referenced: 9027
> [ 469.066138] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #10163: comm rm: deleted inode referenced: 9090
> [ 469.067526] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8417: comm rm: deleted inode referenced: 8443
> [ 469.068584] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8067
> [ 469.069280] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 9694
> [ 469.069893] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8100
> [ 469.070123] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8635
> [ 469.070509] EXT4-fs error (device loop0): ext4_lookup:1044: inode
> #8423: comm rm: deleted inode referenced: 8929
> ......
>
> ***************************End**********************************************
>
>
> But if I use ext3, this will not occur.
> If I do not run "/bin/sync;/bin/echo 1 > /proc/sys/vm/drop_caches",
> this will not occur.
> If I use kernel>=3.0, this will not occur.
>
> But I use ext4 and run "/bin/sync; /bin/echo 1 >
> /proc/sys/vm/drop_caches", these error messages.
>
> So is this is a bug?
>
next prev parent reply other threads:[~2013-03-12 7:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-12 6:58 Inactive memory keep growing and how to release it? Lenky Gao
2013-03-12 7:41 ` a problem about ext4 zhuyj
2013-03-12 7:49 ` zhuyj [this message]
2013-03-12 8:13 ` zhuyj
2013-03-12 13:42 ` Theodore Ts'o
2013-03-13 3:24 ` Ext4:can not rm directories on 2.6.3x zhuyj
2013-03-15 7:16 ` zhuyj
2013-03-15 14:53 ` Theodore Ts'o
2013-03-15 14:56 ` Willy Tarreau
2013-03-15 14:59 ` Theodore Ts'o
2013-03-15 15:12 ` Paul Gortmaker
2013-03-12 8:37 ` Inactive memory keep growing and how to release it? Zheng Liu
2013-03-12 8:48 ` Lenky Gao
2013-03-14 8:00 ` Lenky Gao
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