Bug 317

Summary:	Problem locking files on cifs mounted shares
Product:	Busybox	Reporter:	Mark Vejvoda <mark_vejvoda>
Component:	Networking	Assignee:	unassigned
Status:	RESOLVED INVALID
Severity:	normal	CC:	busybox-cvs
Priority:	P5
Version:	1.12.x
Target Milestone:	---
Hardware:	PC
OS:	Linux
Host:		Target:
Build:	1.12.3

Description Mark Vejvoda 2009-05-05 05:45:27 UTC

While working on adding features to the "tomato" firmware distro for my WRT54G linksys based router (which uses busybox 1.12.3) I came across some problems trying to implement sqlite to store network bandwidth statistics on a cifs mounted share. I noticed the same behaviour as mentioned in these links:

http://www.nabble.com/Bug-483502:-smbfs:-mount--o-remount,-brl-or--o-remount,-nobrl-changes-the-reported-%22mand%22-option,-but-has-no-effect-td17527313.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=483216

When sqlite started failing 100% I started digging and found many postings around the net where people were having the same problems. There is a simple test program in the first link mentioned above which I have confirmed fails 100% on my box in the exact same location mentioned in that link (during locking write's) on a cifs mounted system with -EPERM (-1). Running the same problem on the local busybox system the same test does not fail.

Comment 1 Mike Frysinger 2009-05-05 06:38:03 UTC

unless i missed something, i dont see how this is a busybox problem at all

Comment 2 Mark Vejvoda 2009-05-06 04:50:08 UTC

Sorry I am totally new to embedded linux, cross compilers etc.. so I didn't quite understand where busybox, uclib, etc.. all fit into the big picture. Now I do. There is a SAMBA server defect in the distro I am using (which happens to run on busybox) and I assumed that the mount.c (being part of busybox) had the defect but alas it was not busybox at all. Sorry about that. Apparently the defect is fixed AFTER samba server 3.0.22 (ie: 3.0.33 and beyond).

Thanks