Bug 141078

Summary:	subfs/submount and reiserfs: heavy remounts
Product:	[openSUSE] SUSE LINUX 10.0	Reporter:	Wolfgang Mües <wolfgang>
Component:	Kernel	Assignee:	Adrian Schröter <adrian.schroeter>
Status:	RESOLVED WONTFIX	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None	CC:	adrian.schroeter
Version:	Final
Target Milestone:	---
Hardware:	i586
OS:	Linux
Whiteboard:
Found By:	Customer	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Wolfgang Mües 2005-12-28 10:10:58 UTC

If you add a reiserfs (3.x) formatted USB disk, the hotplug system is mounting the disk, and a konqueror window is popping up. If you try to navigate/click in this window, the system is busy trying to mount the disk over and over again.

This error is mentioned in other bug reports, but is is _not_ related to the "sync" problem. Its a problem of its own. Maybe a kernel interaction of subfs and reiserfs. 

IMHO, we don't need the submount functionality of trying an automatic mount every time a directory in /media is accessed. Instead, mounting should be triggered only by the hotplug scripts, and a timed auto-sync should protect us from data loss at device removal. Unmount should be done by the hotplug functions.

Comment 1 Olaf Kirch 2006-01-02 11:34:27 UTC

Kay, can you help debug what is happening here?

If it's just subfs breakage feel free to reassign to Adrian.

Comment 2 Kay Sievers 2006-01-02 11:56:11 UTC

Yes, it's a "feature" of subfs and a known issue. It has the same problem with other filesystems too. We see the same behavior for optical drives too. For 10.1 we can hopefully provide a way to configure problematic devices not to use subfs.

Comment 3 Adrian Schröter 2006-01-03 10:15:00 UTC

yes, reiserfs is anyway not designed to be used on removable medias, so we did ignore this for now

Comment 4 Wolfgang Mües 2006-01-03 19:26:35 UTC

"reiserfs is anyway not designed to be used on removable medias"

Adrian, can you explain this? I am using reiserfs for an external USB backup HD, and it's working fine (beside the subfs issue).

I don't mind if this bug is not *fixed*. However, as Kay said, I hope you find a better solution than subfs for this hotplug issue in Suse 10.x.