memory it has not allocated?
--
Matthias Andree
with the latest version of the respective tools is
a must.
--
Matthias Andree
or 16K atomically on a disk drive).
--
Matthias Andree
compute strong
checksums as they go, and record them for later use, and check so many
percent of unchanged files every day to complain about corruptions.
--
Matthias Andree
On Tue, 01 Aug 2006, Hans Reiser wrote:
You will want to try our compression plugin, it has an ecc for every 64k
What kind of forward error correction would that be, and how much and
what failure patterns can it correct? URL suffices.
--
Matthias Andree
, go ahead. But you're
right to collect and evaluate suggestions first if you don't want to run
a new benchmark every day :)
--
Matthias Andree
a crash, which is however easy on the I/O as of recent FreeBSD
versions). Which was their main point against logging/journaling BTW,
but they are porting XFS as well to save those that need instant
complete recovery.
--
Matthias Andree
.)
--
Matthias Andree
for systems
such as ZFS.
--
Matthias Andree
, but someone needs to write, debug and field-test the code to do
that - possibly based on Andreas Dilger's earlier ext2 online resizing
work.
--
Matthias Andree
that for already existing directories):
e2fsck -fD /dev/hdXX
hat is not alternatively, but tune2fs first, then e2fsck -fD
(which can't happen on a RW-mounted FS and you should only try this on
your rootfs if you can reboot with magic sysrq or from a rescue system).
--
Matthias Andree
from their installation tool for technical
reasons they didn't specify in the release notes. Whatever.
ext3 always worked well for me, so why should I abandon it?
Plus, it and its tools are maintained.
--
Matthias Andree
will.
Why?
I'm trying to shift my focus away from computer administration and
better file systems than old-style non-journalling, non-softupdates UFS
are available today and more will follow.
Cc: list weeded out.
--
Matthias Andree
much like you're doing synchronous I/O (else
figures around 70/s perhaps 100/s would be more adequate), and cache
exercise is rather irrelevant for databases that manage real (=valuable)
data...
--
Matthias Andree
massively losing data.
--
Matthias Andree
, but
since block relocating is already in place for shrink support in the
offline resizer, some of the work appears to be done already.)
--
Matthias Andree
.
sdparm --clear=WCE /dev/sda # please.
--
Matthias Andree
) and it will be mkfs time - so
reiser4 better be mature before we go that way if there's no way back
short of amrecover, restore or tar -x.
Smashing out most of the Cc:s in order not to bore people.
--
Matthias Andree
On Tue, 25 Jul 2006, Denis Vlasenko wrote:
I, on the contrary, want software to impose as few limits on me
as possible.
As long as it's choosing some limit, I'll pick the one with fewer
surprises.
--
Matthias Andree
directories.)
--
Matthias Andree
.
--
Matthias Andree
Mike Benoit wrote:
I've been bitten by running out of inodes on several occasions, and by
switching to ReiserFS it saved one company I worked for over $250,000
because they didn't need to buy a totally new piece of software.
ext3fs's inode density is configurable, reiserfs's hash overflow
that needs doing and still needs doing. Remind me
about this in a year.:)
Save this mail to a file and have atd mail it to you. Or use a calendar :)
--
Matthias Andree
from reiserfs on the next suitable
occasion (such as upgrades). There's ext3fs, jfs, xfs, and in 2006 or
2007, we'll talk about reiser4 again. Yes, I am conservative WRT file
systems and storage.
--
Matthias Andree
to choose the file system, and as the simple
demonstration code posted earlier shows a serious flaw in reiserfs,
Hans's response was boldfaced, I ditched reiserfs3. End of story.
--
Matthias Andree
-free. I don't expect NFS problems with
reiser4 though, these should be in the regression tests. :-)
--
Matthias Andree
' time, it
may be a good file system and I will look at it - I trust the reiserfs
team can learn from their mistakes.
I hope they learn that THIS handling of the error was wrong.
Who cares, not us for the past five years is not a proper response to
a real-world problem.
--
Matthias Andree
by far to fix bugs in V4,
which is pretty stable these days.
Better to fix a known bug than create a file system vacuum before V4 is
really stable.
Anyways, I don't care any more, I'm phasing out ReiserFS v3 and have no
plans to try V4 before 2006.
--
Matthias Andree
didn't but said use reiser4 instead. And that's inadequate.
And I say this without any emotions, red head, swelling veins and such.
--
Matthias Andree
archives, are probably a good idea for these circles then.
--
Matthias Andree
.
--
Matthias Andree
barking up the wrong tree?
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
screw up your file system. Beyond repair, to a use your backup state.
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
rebuild.log.gz
Description: gzipped reiserfsck --rebuild-tree log
, workaround: use mkstemp(2) and
link(2).
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
08060828 b258 00c4 002b 002b 00c4
Call Trace:[sys_lstat64+129/144] [system_call+51/56]
Call Trace:[c014ebf1] [c01090eb]
Code: Bad EIP value.
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
On Tue, 20 Jan 2004, Matthias Andree wrote:
This happened during the nightly updatedb, which calls find. The hex
string is resi, locate resi finds a file in a reiserfs file system,
/usr.
reiserfsck 3.6.11 afterwards fixed some
vpf-10680: The file [103048 103049] has the wrong block count
.
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
?
--
Matthias Andree
Encrypt your mail: my GnuPG key ID is 0x052E7D95
: it's not
generally true that larger code is also slower. It depends how that code
is arranged. If you have many abstractions, then maybe it's slower. If
you have many specialized functions in an otherwise flat profile, it can
be a good deal faster than a simpler (less complex) code.
--
Matthias
I miss something?
You can safely consult ext3 documentation on these options, reiserfs
should behave the same in respect to these options.
--
Matthias Andree
be turned of or write barrier patches be
applied to be safe in case of a power blackout.
--
Matthias Andree
reiserfsck v3.6.3
but no more v3.6.4-pre1.
I'll check your kernel's changelog to get the fix though.
--
Matthias Andree
]
---
| 13|13010 13034 0x1001 DRCT (2), len 136, location 1199 entry count 65535, fsck need
|0, format old|
===
--
Matthias Andree
buffers, and can also refresh or reassign bad blocks.
--
Matthias Andree
it is good to educate them with URLs
and other references at the time they run fsck.
A propos URL, here we go:
ftp://ftp.fokus.gmd.de/pub/unix/sformat/
--
Matthias Andree
(and not many ship raw floppy images, many have some multi-MB
Windoze tools just to write some hundred kByte to a floppy disk...)
--
Matthias Andree
motherboards.
It's not dma but the unrecoverable error part that matters. The DMA
trips over as consequence of this defective block (there is no data that
could be transferred), the DMA is *not* the cause for the bad block.
--
Matthias Andree
-tree is the right
one, then it should also be able to abort the fix-fixable run and tell
the user to run rebuild-tree. Maybe such needs-fix-fixable and
needs-rebuild-tree flags should be stored into the super block, much
like ext2 stores the file system with errors condition.
--
Matthias Andree
. They will come back.
(They come back to haunt the university site that I administer, I
regularly see rejects in my mailer's log file.)
--
Matthias Andree
blocks are
on disk. While I'm not sure if and if yes, which, Linux file systems are
affected, but for portable applications, be aware that sync() may return
prematurely (and is allowed to!).
--
Matthias Andree
blocks will make the drive remap them
if it has spare sectors left to remap to.
--
Matthias Andree
to play with the settings later, to figure
what's going on there
--
Matthias Andree
GPG encrypted mail welcome, unless it's unsolicited commercial email
files at several hundred MB each. CD Images, Debian 2.2r5 in
my case.
--
Matthias Andree
GPG encrypted mail welcome, unless it's unsolicited commercial email.
, not too much.
--
Matthias Andree
GPG encrypted mail welcome, unless it's unsolicited commercial email.
ahead and similar activated?
SCSI here, with aic7xxx 5.x and 6.x driver, no particular tuning in
place except that I told the AHA2940 to negotiate Ultra-Wide, it has
braindead default settings (negotiates 10 MXfers/s only, no Ultra), so
we can safely assume it did DMA.
--
Matthias Andree
GPG
of some 6.x version which the CD-ROM drive
read at 8x speed (and I didn't bother to have that exchanged)
--
Matthias Andree
They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety. Benjamin Franklin
is for the
distributors to fix.
Had they left MSDOS as a module, things would have worked out: 1. ext2
in the kernel 2. initrd loads reiserfs 3. actual root (reiserfs) is
mounted 4. only now, msdos.o becomes available.
--
Matthias Andree
They that can give up essential liberty to obtain a little
to ramp up the voltage should the
main supply fail or show brownouts, then the risk may be small enough.
--
Matthias Andree
Those who give up essential liberties for temporary safety deserve
neither liberty nor safety. - Benjamin Franklin
, possibly as mandatory? That might be
rather useful to use after in a synchronous write.
--
Matthias Andree
Those who give up essential liberties for temporary safety deserve
neither liberty nor safety. - Benjamin Franklin
figured
it did lazy write-back caching. No file system can be safe on such
disks.
--
Matthias Andree
Those who give up essential liberties for temporary safety deserve
neither liberty nor safety. - Benjamin Franklin
. :-)
--
Matthias Andree
options to prevent mount on boot.
See man fstab.
--
Matthias Andree
.
Not sure if Coda or AFS have concepts like these.
--
Matthias Andree
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