View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0007897 | CentOS-7 | kernel | public | 2014-11-18 12:40 | 2014-11-18 12:40 |
| Reporter | seanblee | Assigned To | |||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | new | Resolution | open | ||
| Platform | x86_64 | OS | CentOS | OS Version | 7 |
| Product Version | 7.0-1406 | ||||
| Summary | 0007897: CIFS incorrectly treats any NTFS reparse point as a symlink | ||||
| Description | In-kernel CIFS in CentOS7 treats any NTFS reparse point as a symlink, which breaks access to files stored on Windows Server 2012 with deduplication enabled. For example: [root@flash ad_csd_msdadmin]# uname -a Linux flash.datcon.co.uk 3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux [root@flash ad_csd_msdadmin]# mount | grep msdadmin //ad/csd/msdadmin on /mnt/ad_csd_msdadmin type cifs (ro,relatime,vers=1.0,cache=strict,username=vpgbuild,domain=DCL,uid=0,noforceuid,gid=0,noforcegid,addr=172.18.10.78,file_mode=0755,dir_mode=0755,nounix,serverino,rsize=61440,wsize=65536,actimeo=1) [root@flash ad_csd_msdadmin]# ll | grep widget l--------- 0 root root 93388 May 17 2010 widget_not_showing_most_recent.jpg -> ??????????????? [root@flash ad_csd_msdadmin]# file widget_not_showing_most_recent.jpg widget_not_showing_most_recent.jpg: broken symbolic link to `???????????????\001' [root@flash ad_csd_msdadmin]# By comparison, here's the output from a CentOS 6 machine: [root@enfirepo1 ad_csd_msdadmin]# uname -a Linux enfirepo1.datcon.co.uk 2.6.32-431.29.2.el6.x86_64 #1 SMP Tue Sep 9 21:36:05 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux [root@enfirepo1 ad_csd_msdadmin]# mount | grep msdadmin //ad/csd/msdadmin on /mnt/ad_csd_msdadmin type cifs (ro) [root@enfirepo1 ad_csd_msdadmin]# ll | grep widget -rwxr-xr-x. 0 root root 93388 May 17 2010 widget_not_showing_most_recent.jpg [root@enfirepo1 ad_csd_msdadmin]# file widget_not_showing_most_recent.jpg widget_not_showing_most_recent.jpg: JPEG image data, JFIF standard 1.01 [root@enfirepo1 ad_csd_msdadmin]# I've verified the problem still exists on the current kernel (3.10.0-123.9.3.el7.x86_64). A fix went into the kernel back in November 2013 (see http://marc.info/?l=linux-cifs&m=138331434210092&w=2) - could this be backported to CentOS7, please? | ||||
| Tags | No tags attached. | ||||
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-11-18 12:40 | seanblee | New Issue |
