Netatalk 在客户端打开特定目录时的崩溃问题

whitebear

May 30, 2014

我的FreeNAS服务器上开启了Netatalk接受客户端的AFP连接。有些时候，当客户电脑打开某个特定目录时，Finder会失去响应。此时在NAS的系统日志里有大量错误消息，类似于

May 30 12:49:23 nas afpd[3670]: Convert OS X to Netatalk AppleDouble: /mnt/main/xxx/._2000.jpg
May 30 12:49:23 nas afpd[3670]: ===============================================================
May 30 12:49:23 nas afpd[3670]: INTERNAL ERROR: Signal 11 in pid 3670 (3.1.1)
May 30 12:49:23 nas kernel: pid 3670 (afpd), uid 21110: exited on signal 6
May 30 12:49:23 nas afpd[3670]: ===============================================================
May 30 12:49:24 nas winbindd[73484]: [2014/05/30 12:49:24.221380, 0] ../source3/winbindd/winbindd_cred_cache.c:840(store_memory_creds)
May 30 12:49:24 nas winbindd[73484]: failed to mlock memory: Resource temporarily unavailable (35)
May 30 12:49:24 nas afpd[3673]: pam_winbind(netatalk): user ‘bear’ granted access
May 30 12:49:24 nas afpd[3673]: Login by bear (AFP3.4)
May 30 12:49:24 nas afpd[3673]: afp_disconnect: trying primary reconnect
May 30 12:49:24 nas afpd[76175]: Reconnect: no child[3670]
May 30 12:49:29 nas afpd[3673]: afp_disconnect: primary reconnect failed
May 30 12:49:29 nas afpd[3673]: parse_entries: bogus eid: 9, off: 50, len: 3760
May 30 12:49:29 nas afpd[3673]: parse_entries: bogus eid: 2, off: 3810, len: 286
May 30 12:49:29 nas afpd[3673]: ad_header_read(/mnt/main/xxx/._2000.jpg): malformed AppleDouble
May 30 12:49:29 nas afpd[3673]: Convert OS X to Netatalk AppleDouble: /mnt/main/xxx/._2000.jpg
May 30 12:49:29 nas afpd[3673]: ===============================================================
May 30 12:49:29 nas afpd[3673]: INTERNAL ERROR: Signal 11 in pid 3673 (3.1.1)
May 30 12:49:29 nas kernel: pid 3673 (afpd), uid 21110: exited on signal 6
May 30 12:49:29 nas afpd[3673]: ===============================================================
May 30 12:49:29 nas winbindd[73484]: [2014/05/30 12:49:29.800753, 0] ../source3/winbindd/winbindd_cred_cache.c:840(store_memory_creds)
May 30 12:49:29 nas winbindd[73484]: failed to mlock memory: Resource temporarily unavailable (35)
May 30 12:49:29 nas afpd[3677]: pam_winbind(netatalk): user ‘bear’ granted access
May 30 12:49:29 nas afpd[3677]: Login by bear (AFP3.4)
May 30 12:49:29 nas afpd[3677]: afp_disconnect: trying primary reconnect
May 30 12:49:29 nas afpd[76175]: Reconnect: no child[3673]
May 30 12:49:34 nas afpd[3677]: afp_disconnect: primary reconnect failed
May 30 12:49:34 nas afpd[3677]: parse_entries: bogus eid: 9, off: 50, len: 3760
May 30 12:49:34 nas afpd[3677]: parse_entries: bogus eid: 2, off: 3810, len: 286
May 30 12:49:34 nas afpd[3677]: ad_header_read(/mnt/main/xxx/._2000.jpg): malformed AppleDouble
May 30 12:49:34 nas afpd[3677]: Convert OS X to Netatalk AppleDouble: /mnt/main/xxx/._2000.jpg
May 30 12:49:34 nas afpd[3677]: ===============================================================
May 30 12:49:34 nas afpd[3677]: INTERNAL ERROR: Signal 11 in pid 3677 (3.1.1)
May 30 12:49:34 nas kernel: pid 3677 (afpd), uid 21110: exited on signal 6
May 30 12:49:34 nas afpd[3677]: ===============================================================

因为提示信息比较多，而且由于Finder一直在尝试重连，系统日志会一直在刷新。因此捕获真正有用的错误提示比较难……其实日志中对错误原因说得很明白：

ad_header_read(/mnt/main/xxx/._2000.jpg): malformed AppleDouble

FreeNAS官网也有这样一个bug报告。
只要执行

 dbd -s -t /mnt/main dbd -t /mnt/main 

就好了……其中 /mnt/main 是挂载点。直接按照系统日志中提示的目录（/mnt/main/xxx/）执行上述命令也可以，没有任何区别。

实在不行就去对应的目录下，把Mac的专属文件（.DS_Store，._xxxx之类的）全删掉也可以解决问题