Home » Mailing list archives » freebsd-current » 2008 » January » 4

Re: a new way to hang 7.0

Previous thread: panic about half the time with WPA+WPI during startup by Hanns Hartman on Thursday, January 3, 2008 - 1:22 pm. (3 messages)

Next thread: Strange kernel trap 12 with vm_page_splay() on FreeBSD/i386 SMP 7.0-RC1 by Xin LI on Thursday, January 3, 2008 - 9:55 pm. (1 message)
[view original message]
From: Matthew Dillon <dillon@...>
To: Mikhail Teterin <mi@...>
Cc: <efinleywork@...>, <current@...>
Subject: Re: a new way to hang 7.0
Date: Thursday, January 3, 2008 - 7:34 pm

[Empty message]
[view original message]
From: Dag-Erling Smørgrav <des@...>
To: Matthew Dillon <dillon@...>
Cc: Mikhail Teterin <mi@...>, <efinleywork@...>, <current@...>
Subject: Re: a new way to hang 7.0
Date: Monday, January 7, 2008 - 9:44 am

OK, so you reject softupdates because it took time to mature and you

assume it stopped improving when you stopped paying attention.


How long do you think it will take for HAMMER to mature?  Realistically?

How long will HAMMER be "a huge source of bugs in the system" before it

stabilizes?


Think back to when you started DragonFly.  How soon did you expect it to

overtake FreeBSD in SMP performance?  And how long did it actually take?

Actually, it never happened - DrangonFly doesn't scale at all across

multiple cores, while FreeBSD 7 leads the pack.


Perhaps you should adjust your expectations a bit.  I don't doubt that

HAMMER will be a very interesting file system when it's stable, but I

doubt very much that will happen any time soon.  In fact, I think it

will take about as long for HAMMER to mature as it took for softupdates

and SMPng.


DES

--

Dag-Erling Smørgrav - des@des.no

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[view original message]
From: Mikhail Teterin <mteterin@...>
To: Dag-Erling <des@...>
Cc: <efinleywork@...>, <current@...>
Subject: Re: a new way to hang 7.0
Date: Monday, January 7, 2008 - 12:11 pm

And softupdates are still buggy :( I had a panic with something about

softupdates and inode right before New Year (kernel binaries have been

rebuilt before then, so I could not really debug).


The "Failed to flush worklist" error continues to appear every once in a while

too, preventing clean unmounts...


Usable? Mostly. Mature? No...


 -mi

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[view original message]
From: Graham Todd <gtodd@...>
To: Matthew Dillon <dillon@...>
Cc: Mikhail Teterin <mi@...>, <efinleywork@...>, <current@...>
Subject: Re: a new way to hang 7.0
Date: Friday, January 4, 2008 - 3:02 pm

Wow, pretty neat. If HAMMER becomes the default filesystem and snapshots

are low cost and easy are they any plans to leverage these features? :-)

 If I understand some of the opensolaris work correctly they are

starting to make use of zfs snapshots for upgrades/updates and packaging

systems.

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[view original message]
From: Scott Long <scottl@...>
To: Graham Todd <gtodd@...>
Cc: Mikhail Teterin <mi@...>, <efinleywork@...>, <current@...>
Subject: Re: a new way to hang 7.0
Date: Friday, January 4, 2008 - 3:54 pm

There are better lists on which to discuss DragonflyBSD vaporware.


Scott

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Previous thread: panic about half the time with WPA+WPI during startup by Hanns Hartman on Thursday, January 3, 2008 - 1:22 pm. (3 messages)

Next thread: Strange kernel trap 12 with vm_page_splay() on FreeBSD/i386 SMP 7.0-RC1 by Xin LI on Thursday, January 3, 2008 - 9:55 pm. (1 message)