Bug 50516

Summary:	reiserfs umount hangs with Kernel 2.4.3-12
Product:	[Retired] Red Hat Linux	Reporter:	Greg Folkert <gfolkert>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED RAWHIDE	QA Contact:	Brock Organ <borgan>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.1
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
URL:	http://www.namesys.com/download.html
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-08-01 15:07:17 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Greg Folkert 2001-07-31 19:50:19 UTC

From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows 98)

Description of problem:
If you ever try to umount a reiserfs filesystem the command line will 
never return. Happens when shutting down machine too, it just hangs at: 
Unmounting Filesystems

Have to use the Reset/Power Button to get any further. Which of course 
causes FSCK to kick off everytime it starts up.



How reproducible:
Always

Steps to Reproduce:
1. Mount a reiserfs filesystem at first or second+ level (/var = 1st 
level, /var/spool/squid = second+). Have it mounted at bootup or not makes 
no difference just make sure it is mounted.
2. Umount a reiserfs filesystem or restart machine
3. Wait for a LOOOOOOOONG time as it fails completely


Actual Results:  1. Hit reset/power button, cause your boss is breathing 
down your neck, after waiting 1+ hours for it to return.
2. Cycle box, wait for fsck to fix everything (you hope)
3. Announce cache and webserver is back and running. After first 
announcing it should have been a 5 minute item.
	

Expected Results:  1. Issue command "shutdown -r now"
2. Wait a few moments for box to restart
3. Change Helpdesk announcement to "no current problems".

Additional info:

Known issue with the 2.4.3 kernel.

Goto http://www.namesys.com/download.html

and read the bit about "Warning: VFS...etc"

Comment 1 Arjan van de Ven 2001-07-31 19:52:51 UTC

Please try the 2.4.3-15 kernel at

http://people.redhat.com/arjanv/testkernels/

it should have the fix for this.

Comment 2 Greg Folkert 2001-08-01 00:20:20 UTC

I installed kernel-2.4.3-15...

No luck, still hangs.

Currently made a new kernel(bzImage) with reiserfs in it (not a module), from 
source (2.4.7 from kernel.org), using config "kernel-2.4.3-i686.config" from 
2.4.3-12 source. With the one change (a biggy I know) it now, works.

It was the only way I can get it to NOT hang on umount, so far. This does not 
mean 2.4.7 is going to stay there, it is not default 2.4.3-15 is.


Actual machine is:

http://web.grcc.cc.mi.us

Comment 3 Arjan van de Ven 2001-08-01 09:22:16 UTC

Are you _very_ sure you were running -15 with the hang? The "common"
hang on unmount was fixed in that, and several people reported success with it
so far.

Comment 4 Greg Folkert 2001-08-01 15:07:13 UTC

You are correct, in assuming -12 was running. I archive configs as I go, yep My 
label said -15 but was running -12 (darn vi with yank and put, and me 
forgetting to edit the image line along with the label). My bad.

When actually running the -15 Kernel, it does fix the problem. Although what 
intrigues me, is the 2.4.7 did the same as a module, but not as a compiled in 
component.

Guess this is closed then.

Comment 5 eric gerbier 2001-08-02 11:56:15 UTC

*** Bug 50576 has been marked as a duplicate of this bug. ***