From: Boaz Harrosh <bharrosh@panasas.com>
To: Christof Schmitt <christof.schmitt@de.ibm.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org,
lsf10-pc@lists.linuxfoundation.org, Nick
Subject: [LFS/VM TOPIC] Stable pages while IO (was Wrong DIF guard tag on ext2 write)
Date: Thu, 03 Jun 2010 19:09:52 +0300 [thread overview]
Message-ID: <4C07D3D0.8010500@panasas.com> (raw)
In-Reply-To: <20100531112817.GA16260@schmichrtp.mainz.de.ibm.com>
[Topic]
How to not let pages change while in IO
[Abstract]
As seen in a long thread on the fsdvel scsi mailing lists. Lots of
people have headaches and sleep less nights because individual pages
can change while in IO and/or DMA. Though each one as slightly different
needs, the mechanics look to be the same.
People that care:
- Mirror and RAID people that need on disk consistency.
- Network storage that wants data checksum.
- DIF/DIX people
- ...
I for one know nothing of the subject but am a RAID person and would
like a solution that does not force me to copy the complete data load.
Please lets get all the VM VFS and drivers people in one room and see
if we can have a Linux solution to this problem
Boaz
WARNING: multiple messages have this Message-ID (diff)
From: Boaz Harrosh <bharrosh@panasas.com>
To: Christof Schmitt <christof.schmitt@de.ibm.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org,
lsf10-pc@lists.linuxfoundation.org, Nick Piggin <npiggin@suse.de>,
Al Viro <viro@ZenIV.linux.org.uk>,
Chris Mason <chris.mason@oracle.com>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Ric Wheeler <rwheeler@redhat.com>,
Matthew Wilcox <willy@linux.intel.com>,
Vladislav Bolkhovitin <vst@vlnb.net>,
Christoph Hellwig <hch@lst.de>
Subject: [LFS/VM TOPIC] Stable pages while IO (was Wrong DIF guard tag on ext2 write)
Date: Thu, 03 Jun 2010 19:09:52 +0300 [thread overview]
Message-ID: <4C07D3D0.8010500@panasas.com> (raw)
In-Reply-To: <20100531112817.GA16260@schmichrtp.mainz.de.ibm.com>
[Topic]
How to not let pages change while in IO
[Abstract]
As seen in a long thread on the fsdvel scsi mailing lists. Lots of
people have headaches and sleep less nights because individual pages
can change while in IO and/or DMA. Though each one as slightly different
needs, the mechanics look to be the same.
People that care:
- Mirror and RAID people that need on disk consistency.
- Network storage that wants data checksum.
- DIF/DIX people
- ...
I for one know nothing of the subject but am a RAID person and would
like a solution that does not force me to copy the complete data load.
Please lets get all the VM VFS and drivers people in one room and see
if we can have a Linux solution to this problem
Boaz
WARNING: multiple messages have this Message-ID (diff)
From: Boaz Harrosh <bharrosh@panasas.com>
To: Christof Schmitt <christof.schmitt@de.ibm.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org,
lsf10-pc@lists.linuxfoundation.org, Nick Piggi
Subject: [LFS/VM TOPIC] Stable pages while IO (was Wrong DIF guard tag on ext2 write)
Date: Thu, 03 Jun 2010 19:09:52 +0300 [thread overview]
Message-ID: <4C07D3D0.8010500@panasas.com> (raw)
In-Reply-To: <20100531112817.GA16260@schmichrtp.mainz.de.ibm.com>
[Topic]
How to not let pages change while in IO
[Abstract]
As seen in a long thread on the fsdvel scsi mailing lists. Lots of
people have headaches and sleep less nights because individual pages
can change while in IO and/or DMA. Though each one as slightly different
needs, the mechanics look to be the same.
People that care:
- Mirror and RAID people that need on disk consistency.
- Network storage that wants data checksum.
- DIF/DIX people
- ...
I for one know nothing of the subject but am a RAID person and would
like a solution that does not force me to copy the complete data load.
Please lets get all the VM VFS and drivers people in one room and see
if we can have a Linux solution to this problem
Boaz
next prev parent reply other threads:[~2010-06-03 16:09 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-31 11:28 Wrong DIF guard tag on ext2 write Christof Schmitt
2010-05-31 11:34 ` Christof Schmitt
2010-05-31 14:20 ` Martin K. Petersen
2010-05-31 14:46 ` Christof Schmitt
2010-06-01 13:16 ` Martin K. Petersen
2010-06-02 13:37 ` Christof Schmitt
2010-06-02 23:20 ` Dave Chinner
2010-06-04 1:34 ` Martin K. Petersen
2010-06-04 2:32 ` Dave Chinner
2010-06-07 16:20 ` Martin K. Petersen
2010-06-07 17:22 ` Boaz Harrosh
2010-06-07 17:40 ` Martin K. Petersen
2010-06-08 7:15 ` Christof Schmitt
2010-06-08 8:47 ` Dave Chinner
2010-06-08 8:52 ` Nick Piggin
2010-05-31 14:49 ` Nick Piggin
2010-06-01 13:17 ` Martin K. Petersen
2010-05-31 15:01 ` James Bottomley
2010-05-31 15:30 ` Boaz Harrosh
2010-05-31 15:49 ` Nick Piggin
2010-05-31 16:25 ` Boaz Harrosh
2010-06-01 13:22 ` Martin K. Petersen
2010-06-01 10:30 ` Christof Schmitt
2010-06-01 10:49 ` Boaz Harrosh
2010-06-01 13:03 ` Chris Mason
2010-06-01 13:50 ` Christof Schmitt
2010-06-01 13:58 ` Chris Mason
2010-06-08 7:18 ` Christof Schmitt
2010-06-08 7:18 ` Christof Schmitt
2010-06-08 7:18 ` Christof Schmitt
2010-06-01 14:26 ` Nick Piggin
2010-06-01 13:50 ` Christof Schmitt
2010-06-01 13:50 ` Christof Schmitt
2010-06-01 13:27 ` James Bottomley
2010-06-01 13:33 ` Chris Mason
2010-06-01 13:40 ` James Bottomley
2010-06-01 13:49 ` Chris Mason
2010-06-01 16:29 ` Matthew Wilcox
2010-06-01 16:29 ` Matthew Wilcox
2010-06-01 16:47 ` Chris Mason
2010-06-01 16:54 ` James Bottomley
2010-06-01 18:09 ` Chris Mason
2010-06-01 18:46 ` Nick Piggin
2010-06-01 19:35 ` Chris Mason
2010-06-02 3:20 ` Nick Piggin
2010-06-02 3:20 ` Nick Piggin
2010-06-02 3:20 ` Nick Piggin
2010-06-02 13:17 ` Martin K. Petersen
2010-06-02 13:41 ` Nick Piggin
2010-06-03 15:46 ` Chris Mason
2010-06-03 16:27 ` Nick Piggin
2010-06-03 16:27 ` Nick Piggin
2010-06-04 1:46 ` Martin K. Petersen
2010-06-04 3:09 ` Nick Piggin
2010-06-03 16:27 ` Nick Piggin
2010-06-04 2:02 ` Dave Chinner
2010-06-04 2:02 ` Dave Chinner
2010-06-04 2:02 ` Dave Chinner
2010-06-04 15:32 ` Jan Kara
2010-06-04 1:30 ` Martin K. Petersen
2010-06-01 18:46 ` Nick Piggin
2010-06-01 18:46 ` Nick Piggin
2010-06-01 21:07 ` James Bottomley
2010-06-01 22:49 ` Chris Mason
2010-06-01 16:29 ` Matthew Wilcox
2010-06-01 13:50 ` Martin K. Petersen
2010-06-01 14:28 ` Nick Piggin
2010-06-01 14:32 ` James Bottomley
2010-06-01 14:54 ` Martin K. Petersen
2010-06-03 11:20 ` Vladislav Bolkhovitin
2010-06-03 12:07 ` Boaz Harrosh
2010-06-03 12:41 ` Vladislav Bolkhovitin
2010-06-03 12:46 ` Vladislav Bolkhovitin
2010-06-09 15:58 ` Vladislav Bolkhovitin
2010-06-03 13:06 ` Boaz Harrosh
2010-06-03 13:23 ` Vladislav Bolkhovitin
2010-07-23 17:59 ` Gennadiy Nerubayev
2010-07-23 17:59 ` Gennadiy Nerubayev
2010-07-23 19:16 ` Vladislav Bolkhovitin
2010-07-23 20:51 ` Gennadiy Nerubayev
2010-07-26 12:22 ` Vladislav Bolkhovitin
2010-07-26 17:00 ` Gennadiy Nerubayev
2010-07-26 19:26 ` Vladislav Bolkhovitin
2010-07-24 1:03 ` Dave Chinner
2010-06-01 2:40 ` FUJITA Tomonori
2010-06-03 16:09 ` Boaz Harrosh [this message]
2010-06-03 16:09 ` [LFS/VM TOPIC] Stable pages while IO (was Wrong DIF guard tag on ext2 write) Boaz Harrosh
2010-06-03 16:09 ` Boaz Harrosh
2010-06-03 16:30 ` [Lsf10-pc] " J. Bruce Fields
2010-06-03 17:41 ` Vladislav Bolkhovitin
2010-06-04 16:23 ` Jan Kara
2010-06-04 16:30 ` [Lsf10-pc] " J. Bruce Fields
2010-06-04 17:11 ` Jan Kara
2010-06-06 9:35 ` Boaz Harrosh
2010-06-06 23:37 ` Jan Kara
2010-06-07 8:30 ` Boaz Harrosh
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