LKML Archive on
help / color / mirror / Atom feed
From: Zan Lynx <>
To: Linux kernel mailing list <>,
	ReiserFS List <>
Subject: linux-2.6.20-rc4-mm1 Reiser4 filesystem freeze and corruption
Date: Fri, 19 Jan 2007 10:58:10 -0700	[thread overview]
Message-ID: <1169229490.6266.11.camel@oberon> (raw)

[-- Attachment #1: Type: text/plain, Size: 1202 bytes --]

I have been running 2.6.20-rc2-mm1 without problems, but both rc3-mm1
and rc4-mm1 have been giving me these freezes.  They were happening
inside X and without external console it was impossible to get anything,
plus I was reluctant to test it since the freeze sometimes requires a
full fsck.reiser4 --build-fs to recover the filesystem.

But I finally got some output in a console session.  I wasn't able to
get it all, I made some notes of what I think the problem is.  I may try
again later once I get netconsole working (netconsole fails as a
built-in, I'll try it as a module next).

1 lock held by pdflush/185:
#0: (&type->s_umount_key#15) ... writeback_inodes+0x89

3 locks held by realsync/12942:
#0: (&type->s_umount_key#15) at ... __sync_inodes+0x78
#1: (&mgr->commit_mutex) ... reiser4_txn_end+0x37a
#2: (&qp->mutex) ... synchronize_qrcu+0x19

So, I *think* the problem is two locks on s_umount_key#15.  Does that
sound likely?  I also noticed QRCU may be involved.

Perhaps someone will look at this and instantly know what the problem

If not, I'll be following up with more details like .config and perhaps
a full sysrq-T dump as soon as that fsck finishes.

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]

             reply	other threads:[~2007-01-19 17:57 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-19 17:58 Zan Lynx [this message]
2007-01-19 18:53 ` Edward Shishkin
2007-01-20  0:34 ` Vladimir V. Saveliev
     [not found]   ` <1170267238.22971.1.camel@oberon>
2007-02-01 15:54     ` Edward Shishkin
2007-02-02  0:21       ` Zan Lynx
2007-01-23  7:38 ` Vince
2007-01-23 19:15   ` Vladimir V. Saveliev
2007-01-25  7:33     ` Vince

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1169229490.6266.11.camel@oberon \ \ \ \
    --subject='Re: linux-2.6.20-rc4-mm1 Reiser4 filesystem freeze and corruption' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).