From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vladimir V. Saveliev" Subject: Re: reiser4 in 2.6.14 - lockups with mmapped files Date: Tue, 01 Nov 2005 19:25:26 +0300 Message-ID: <436796F6.10603@namesys.com> References: <1130860221.12859.23.camel@laptop> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <1130860221.12859.23.camel@laptop> List-Id: Content-Type: text/plain; charset="us-ascii" To: Fionn Behrens Cc: reiserfs-list@namesys.com Hello Fionn Behrens wrote: > Hi all, > > you may remember my recent "story from userland". Stubborn as I am, I > decided to give 2.6.14 another shot for it. Following a recommendation > found in the above mentioned thread, I tried the patch from > http://iphitus.loudas.com/archck.php this time, which includes the > latest reiser4 from mm. > > Unfortunately I once more hit the wall and was forced to go back to > 2.6.11 (including another --build-fs run to regain compatibility with > the old but working reiser4 drivers). I wish there was a mount option to > exclude the new extensions so I can test new kernels without losing half > a day for fscking when things get whacky. > Did fsck.reiser4 say you that you have to --build-fs? > This time suspend seemingly works without reiser4 processes freaking > out. > But now it looks like any time any mmapped file is synced to a reiser4 > partition, the process who tries to do that will freeze forever. In Can you please check what fs/reiser4/reiser4.h:REISER4_USE_EFLUSH is set to? If it is 0, please try your test having it set to 1. > addition, any process trying to access the open mmapped file afterwards > will freeze forever as well. I created a screenshot of an strace running > while this happened. Find it at http://fionn.de/reiser4again.jpg > If the above does not help - would you please set up either sereial console or netconsole and catch sysrq-T output with its help? > Of course, tests on files on other file systems than reiser4 did not > show this behaviour. I tested on two different Systems, one Pentium M > and one Athlon, same result. > > I wish I knew what I am doing wrong. I'd bet you guys all have reiser4 > up and running with 2.6.14 and no problems at all. Or what? > > best regards, > Fionn