Bug 10207

Summary:	INFO: task mount:11202 blocked for more than 120 seconds
Product:	IO/Storage	Reporter:	Rafael J. Wysocki (rjw)
Component:	LVM2/DM	Assignee:	Alasdair G Kergon (agk)
Status:	CLOSED DUPLICATE
Severity:	normal	CC:	dgc, herbert, kernel
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.25-rc3	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	9832

Description Rafael J. Wysocki 2008-03-09 15:26:07 UTC

Submitter  : Christian Kujau <lists@nerdbynature.de>
Date       : 2008-03-07 21:32
References : http://lkml.org/lkml/2008/3/7/308
Handled-By : David Chinner <dgc@sgi.com>

This entry is being used for tracking a regression from 2.6.24.  Please don't
close it until the problem is fixed in the mainline.

Comment 1 Rafael J. Wysocki 2008-03-09 15:27:48 UTC

David thinks it may be a dm-crypt bug.

References : http://lkml.org/lkml/2008/3/9/186

Comment 2 Rafael J. Wysocki 2008-03-12 15:24:06 UTC

*** Bug 10228 has been marked as a duplicate of this bug. ***

Comment 3 Herbert Xu 2008-03-14 01:11:59 UTC

Sorry but I'm not the maintainer of dm-crypt.  I think the best person to look into this is Alasdair Kergon.

Comment 4 Milan Broz 2008-03-14 01:40:55 UTC

> Sorry but I'm not the maintainer of dm-crypt.  I think the best person to
> look
> into this is Alasdair Kergon.

yes. (and I will probably handle dm-crypt issues here too)

There is bug in dm-crypt reference count when processing partial write, patch
will follow shortly.

Comment 5 Milan Broz 2008-03-14 02:23:15 UTC

Mentioned patch is here
http://lkml.org/lkml/2008/3/14/71

Comment 6 Rafael J. Wysocki 2008-03-14 04:45:24 UTC

Regressions list annotation:
Patch : http://lkml.org/lkml/2008/3/14/71

Comment 7 Rafael J. Wysocki 2008-03-14 04:46:09 UTC

Handled-By : Milan Broz <mbroz@redhat.com>

Comment 8 Alasdair G Kergon 2008-03-14 09:34:33 UTC

(that patch is not complete BTW - there's a little more to fix that we're working on)

Comment 9 Milan Broz 2008-03-15 07:14:15 UTC

Ref. http://lkml.org/lkml/2008/3/15/38
it seems to be different issue, not related to dm-crypt regression.

For tracking dm-crypt regression we can use bug 10242.

Comment 10 Milan Broz 2008-03-17 12:25:16 UTC

Latest patch for dm-crypt in http://lkml.org/lkml/2008/3/17/214

Comment 11 Rafael J. Wysocki 2008-03-17 13:15:39 UTC

Thanks, but does it fix the $subject problem or the bug #10242, or both?

Comment 12 Rafael J. Wysocki 2008-03-17 14:20:57 UTC

Regressions list annotation:
Patch : http://lkml.org/lkml/2008/3/17/214

Comment 13 Alasdair G Kergon 2008-03-24 05:55:10 UTC

Christian Kujau wrote on the thread that 2.6.25-rc6 with the patch referenced in comment #10 made the hangs go away.  So I think I'll submit this patch.

Comment 14 Rafael J. Wysocki 2008-03-27 15:38:34 UTC


*** This bug has been marked as a duplicate of bug 10242 ***