Bug 12112
| Summary: | Files with size more >2GB was truncated after copy by ncpfs | ||
|---|---|---|---|
| Product: | File System | Reporter: | Stanislav German-Evtushenko (ginermail) |
| Component: | Other | Assignee: | fs_other |
| Status: | RESOLVED OBSOLETE | ||
| Severity: | high | CC: | alan, marcel.cox |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.27 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
|
Description
Stanislav German-Evtushenko
2008-11-27 09:12:29 UTC
Reply-To: akpm@linux-foundation.org (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Thu, 27 Nov 2008 09:12:29 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=12112 > > Summary: Files with size more >2GB was truncated after copy by > ncpfs > Product: File System > Version: 2.5 > KernelVersion: 2.6.27 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: high > Priority: P1 > Component: Other > AssignedTo: fs_other@kernel-bugs.osdl.org > ReportedBy: ginermail@gmail.com > > > Latest working kernel version: none > Earliest failing kernel version: any > Distribution: Ubuntu/SuSE > Hardware Environment: any > Software Environment: any > Problem Description: I can't copy files more then 2Gb by ncpfs. They are > trancate. > > Steps to reproduce: Copy files from Netware/SuSE server to Ubuntu/SuSE > desktop > by ncpfs. > Andrew Morton wrote:
> (switched to email. Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> On Thu, 27 Nov 2008 09:12:29 -0800 (PST) bugme-daemon@bugzilla.kernel.org
> wrote:
>
>> http://bugzilla.kernel.org/show_bug.cgi?id=12112
>>
>> Summary: Files with size more >2GB was truncated after copy by
>> ncpfs
>> Product: File System
>> Version: 2.5
>> KernelVersion: 2.6.27
>> Platform: All
>> OS/Version: Linux
>> Tree: Mainline
>> Status: NEW
>> Severity: high
>> Priority: P1
>> Component: Other
>> AssignedTo: fs_other@kernel-bugs.osdl.org
>> ReportedBy: ginermail@gmail.com
>>
>>
>> Latest working kernel version: none
>> Earliest failing kernel version: any
>> Distribution: Ubuntu/SuSE
>> Hardware Environment: any
>> Software Environment: any
>> Problem Description: I can't copy files more then 2Gb by ncpfs. They are
>> trancate.
>>
>> Steps to reproduce: Copy files from Netware/SuSE server to Ubuntu/SuSE
>> desktop
>> by ncpfs.
ncpfs does not support files bigger than 4GB. If you get truncated
files, I guess that your app is at fault, it should get SIGXFSZ or an
error when you go over 4GB boundary:
(from fs/ncpfs/inode.c)
sb->s_flags |= MS_NODIRATIME; /* probably even noatime */
sb->s_maxbytes = 0xFFFFFFFFU;
sb->s_blocksize = 1024; /* Eh... Is this correct? */
Petr
I tried command 'cp' to copy and I got same result. 'cp' works normal on local filesystem (ext3). Not 4Gb, but exactly 2Gb. Independently on whether the limit is 2GB or 4GB, the core of the problem is that ncpfs is about 10 years behind on NCP protocol support. Like many other network protocols, NCP has been evolving all the time and new features were added. The 2 most essential features missing in ncpfs and that always cause problems for Linux machines that connect to NetWare servers are: - support for files >4GB - utf8 support Other missing features are for example: - support for SLP as name resolution protocol to locate NCP servers - support for NMAS to login to allow using universal password for login What a lot of people may not know is that the documentation for the NCP protocol is public and available here: http://developer.novell.com/documentation/ncp/ncp__enu/data/bktitle.html |