小弟初学 Linux ，请教各位大神

V2EX = way to explore

V2EX 是一个关于分享和探索的地方

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V2EX 提问指南

这是一个创建于 2883 天前的主题，其中的信息可能已经有所发展或是发生改变。

在 centos7 下安装 vsftpd ，用 systemctl start vsftpd.service 服务时，报错，下面是服务器日志： root@whoismrmichael ~]# systemctl start vsftpd.service [ 3487.069573] BUG: Bad page map in process vsftpd pte:8000000000000165 pmd:3bae3067 [ 3487.069587] page:ffffea0000000000 count:-3 mapcount:-3 mapping: (null) index:0x0 [ 3487.069592] page flags: 0x10(dirty) [ 3487.069597] addr:00007fdc7958e000 vm_flags:00100071 anon_vma:ffff88000281a940 mapping: (null) index:7fdc7958e [ 3487.069604] CPU: 0 PID: 8888 Comm: vsftpd Tainted: G B -------------- 3.10.0-123.9.2.el7.x86_64 #1 [ 3487.069609] 00007fdc7958e000 00000000853eb659 ffff88003d5a3c40 ffffffff815e241b [ 3487.069615] ffff88003d5a3c88 ffffffff81167b28 8000001936400165 00000007fdc7958e [ 3487.069621] ffff88003bae3c70 ffffea0000000000 00007fdc7958e000 00007fdc7958f000 [ 3487.069627] Call Trace: [ 3487.069635] [<ffffffff815e241b>] dump_stack+0x19/0x1b [ 3487.069642] [<ffffffff81167b28>] print_bad_pte+0x1a8/0x240 [ 3487.069647] [<ffffffff8116964e>] unmap_page_range+0x76e/0x860 [ 3487.069651] [<ffffffff811697c1>] unmap_single_vma+0x81/0xf0 [ 3487.069656] [<ffffffff8116a889>] unmap_vmas+0x49/0x90 [ 3487.069659] [<ffffffff8117353c>] exit_mmap+0xac/0x1a0 [ 3487.069666] [<ffffffff8105b187>] mmput+0x67/0xf0 [ 3487.069670] [<ffffffff81063dac>] do_exit+0x28c/0xa60 [ 3487.069673] [<ffffffff810645ff>] do_group_exit+0x3f/0xa0 [ 3487.069677] [<ffffffff81064674>] SyS_exit_group+0x14/0x20 [ 3487.069682] [<ffffffff815f2b19>] system_call_fastpath+0x16/0x1b [ 3487.069786] BUG: Bad rss-counter state mm:ffff88003bec4640 idx:0 val:-1 [ 3487.069791] BUG: Bad rss-counter state mm:ffff88003bec4640 idx:1 val:1 Job for vsftpd.service failed. See 'systemctl status vsftpd.service' and 'journalctl -xn' for details. [root@whoismrmichael ~]# jounalctl -ex -bash: jounalctl: command not found [root@whoismrmichael ~]# journalctl -xn -- Logs begin at Sun 2017-02-05 09:39:17 UTC, end at Sun 2017-02-05 10:36:24 UTC Feb 05 10:36:24 whoismrmichael kernel: [<ffffffff8105b187>] mmput+0x67/0xf0 Feb 05 10:36:24 whoismrmichael kernel: [<ffffffff81063dac>] do_exit+0x28c/0xa60 Feb 05 10:36:24 whoismrmichael kernel: [<ffffffff810645ff>] do_group_exit+0x3f/ Feb 05 10:36:24 whoismrmichael kernel: [<ffffffff81064674>] SyS_exit_group+0x14 Feb 05 10:36:24 whoismrmichael kernel: [<ffffffff815f2b19>] system_call_fastpat Feb 05 10:36:24 whoismrmichael kernel: BUG: Bad rss-counter state mm:ffff88003be Feb 05 10:36:24 whoismrmichael kernel: BUG: Bad rss-counter state mm:ffff88003be Feb 05 10:36:24 whoismrmichael systemd[1]: vsftpd.service: control process exite Feb 05 10:36:24 whoismrmichael systemd[1]: Failed to start Vsftpd ftp daemon. -- Subject: Unit vsftpd.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

-- The result is failed.

请教各位大神，这个是什么意思？

7 条回复 • 2017-02-06 10:03:12 +08:00

guyskk

2017-02-05 19:02:07 +08:00 via Android

markdown 格式调整一下吧，看不下去了
```
xxxx
```
这样子贴日志

chengfu

2017-02-05 19:05:35 +08:00 via iPhone

@guyskk 我是说发帖回复的直接贴图片地址或者<img>引用都么法显示，原来要用 markdown 语法引用图片，的说？

max891121500

2017-02-05 19:08:07 +08:00 via iPhone

@chengfu 你看看别人的帖子的网页源文件就知道啦。其实上传到图床，然后贴图片的地址就行的

lbp0200

2017-02-05 19:23:39 +08:00 via Android

初学 linux 就用 centos ？

cos

2017-02-05 19:33:26 +08:00

@lbp0200 用 centos 入门没啥不妥当吧？反正我印象中， rpm 系普遍要比 deb 系简单易懂，我是从来不碰 deb 的。

另外， centos 有完善的 redhat 官网文档，是其它发行版本难以媲美的。

guyskk

2017-02-05 19:40:55 +08:00 via Android

tscsy

2017-02-06 10:03:12 +08:00

@guyskk 谢谢