Re: OT-ish: fedora->crash->single user fsck; FreeBSD->crash->smooth recovery

2008-07-15 Thread Steve Franks
>> Ok, I'll quit ranting and actually ask a question: The real big thing
>> that suprised me (about Fedora), is that every damn time it crashes, I
>> have to sit through 20 minutes of fsck when it boots, then it cries,
>> gags, and throws me into a root console to run fsck again, manually,
>> for 20 more minutes.  I'm thinking about symlinking fsck to a rather
>> dirtier word on the Fedora box.
>
> yes it is normal.
>
> linux filesystem works like in -o async mode, is just caches what it have to
> write and write whenever it likes at whatever sequence.
>
> in linux it is always presented as feature not bug.
>
>
> another very stupid thing is TOO delayed writes, i mean linux simply caches
> things as long as there are free memory then just starts lots of writes at
> once efectively halting the system for a while.
>

Ok, so you are saying the write caching is radically different on
FreeBSD than what I know of Win/Lin?  Or is the timeout to flush just
some really small period like 100mS?

Steve
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Re: OT-ish: fedora->crash->single user fsck; FreeBSD->crash->smooth recovery

2008-07-15 Thread Norberto Meijome
On Tue, 15 Jul 2008 07:36:17 +0200 (CEST)
Wojciech Puchar <[EMAIL PROTECTED]> wrote:

> > Is ext2/3 really that bad?
> >  
> i don't know ext3, it in theory does journalling, are you using ext3 or 
> ext2?
> 
> hint: ext3 is actually ext2 with extra file created, there is no need to 
> convert, just run fsck_ext3 to convert to ext3, and delete that file to 
> convert to ext2.

( my apologies for pursuing the OT)

I can't speak for Fedora, i haven't bothered using it. I can tell you , though,
that ext3's journal is prey to memory hungry processes (like VMWare server) -
user level app uses lots of memory, the fs doesn't have enough to cache/journal
and you hit the ground very fast and very hard. There are some sysctl you can
use to postpone this (at the expense of usable memory). 

Other than that, i can't say ext3 is that bad.

But yeah, I still haven't found enough reasons to move back to Linux from FBSD.
B

_
{Beto|Norberto|Numard} Meijome

If you were supposed to understand it, we wouldn't call it 'code'.

I speak for myself, not my employer. Contents may be hot. Slippery when wet.
Reading disclaimers makes you go blind. Writing them is worse. You have been
Warned.
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Re: OT-ish: fedora->crash->single user fsck; FreeBSD->crash->smooth recovery

2008-07-14 Thread Wojciech Puchar

Just unacceptable for a laptop.  No flash in firefox, I hate flash,
but it's crippling not to have.


i don't have. nothing lost.



Lots of unsupported hardware, etc. [I


simply buy COMPATIBLE hardware like IBM/Lenovo.



observe, it just doesn't crash (unless I plug in a weird flash drive,
camera, etc., and I shouldn't be plugging those things into my servers
anyway).  Yea FreeBSD!  Fedora has crashed at least 5 times in one


Just once a day is considered "stable" in linux world today.


One other thought on FreeBSD vs. Fedora: dudes, rpm dependencies are
junk (or put differently, our ports maintainers are saints)!  Every


at least when i used linux some years ago there was many distros and every 
usable distro (like debian or slackware) used other package format, yes 
rpm was (is?) unusable.



engender riddicule - linux is dumbbed down almost as bad as windows,


i would object this. linux goal is to compete with windows. and it 
competes excellent. it is even worse.


linux is for people that want to show they are  "better" than his/her 
friends so they use "better" operating system.


at least in Poland, where linux users often presents themselves as 
"experts" to others.



Ok, I'll quit ranting and actually ask a question: The real big thing
that suprised me (about Fedora), is that every damn time it crashes, I
have to sit through 20 minutes of fsck when it boots, then it cries,
gags, and throws me into a root console to run fsck again, manually,
for 20 more minutes.  I'm thinking about symlinking fsck to a rather
dirtier word on the Fedora box.


yes it is normal.

linux filesystem works like in -o async mode, is just caches what it have 
to write and write whenever it likes at whatever sequence.


in linux it is always presented as feature not bug.


another very stupid thing is TOO delayed writes, i mean linux simply 
caches things as long as there are free memory then just starts lots of 
writes at once efectively halting the system for a while.



probably crashed my FreeBSD boxes 10-50 times, and it always boots
right up and does an fsck in the background.  So compare, one manual


same on my systems. UFS is designed to survive crashes.


to ditch Fedora and spend the time sending logs to freebsd-acpi,
manually configuring amd, etc, etc...

Is ext2/3 really that bad?

i don't know ext3, it in theory does journalling, are you using ext3 or 
ext2?


hint: ext3 is actually ext2 with extra file created, there is no need to 
convert, just run fsck_ext3 to convert to ext3, and delete that file to 
convert to ext2.



if this journalling really work i don't know.
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OT-ish: fedora->crash->single user fsck; FreeBSD->crash->smooth recovery

2008-07-14 Thread Steve Franks
So, after much tough consideration, I've put Fedora on my laptop.
FreeBSD just won't do a large-ish number of desktop things  (I have 5
FreeBSD systems from 1-10 years old and not a single one will suspend
correctly, even after following the instructions in the handbook.
Just unacceptable for a laptop.  No flash in firefox, I hate flash,
but it's crippling not to have.  Lots of unsupported hardware, etc. [I
know, should have bought a thinkpad, not a bloody compaq]).

Having ran it for about a week, I've got to say, I've really been
taking for granted the stability of FreeBSD.  As people frequently
observe, it just doesn't crash (unless I plug in a weird flash drive,
camera, etc., and I shouldn't be plugging those things into my servers
anyway).  Yea FreeBSD!  Fedora has crashed at least 5 times in one
week.  I guess the demands of running user applications are just too
much (interestingly, it never crashes doing wine, which seems to run
everything these days; most crashes seem related to abusing X (i.e.
changing resolution, dual monitors, etc)).

One other thought on FreeBSD vs. Fedora: dudes, rpm dependencies are
junk (or put differently, our ports maintainers are saints)!  Every
3rd install I have to manually find some .so file.  Worse yet, try
linking libc.a!  What joker took it out of the path!  I've got to
install an rpm to rebuild the kernel!? What about exporting a default
CFLAGS?  FreeBSD was built to compile, not just serve!  Now I
understand why dumb questions on the FreeBSD list occasionally
engender riddicule - linux is dumbbed down almost as bad as windows,
whereas FreeBSD gives me a sense of freedom from stuff I don't need,
and quick builds for that which I do (except acpi ;).

Ok, I'll quit ranting and actually ask a question: The real big thing
that suprised me (about Fedora), is that every damn time it crashes, I
have to sit through 20 minutes of fsck when it boots, then it cries,
gags, and throws me into a root console to run fsck again, manually,
for 20 more minutes.  I'm thinking about symlinking fsck to a rather
dirtier word on the Fedora box.

This has only once ever happened on FreeBSD and I had a gmirror on a
bad disk controller.  What with the crappy usb sticks & such, I've
probably crashed my FreeBSD boxes 10-50 times, and it always boots
right up and does an fsck in the background.  So compare, one manual
fsck in, say, 10 computer-years, vs. 5 in one week.  I'm about ready
to ditch Fedora and spend the time sending logs to freebsd-acpi,
manually configuring amd, etc, etc...

Is ext2/3 really that bad?

Steve
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