From: clemc@ccc.com (Clem Cole)
Subject: [TUHS] The evolution of Unix facilities and architecture
Date: Fri, 12 May 2017 11:18:53 -0400 [thread overview]
Message-ID: <CAC20D2NZ2_6RhrgBj87Ljb8fEO=sEnD9AXWc-Z+FzjRmkWn=DQ@mail.gmail.com> (raw)
In-Reply-To: <CAC20D2M81oWA6MHbXCXcwUDxhU+q18USAK9Ek6m4QzF3o36BJw@mail.gmail.com>
I should have said -- it was not hypothetical -- George implemented it and
published the code and we all picked it up,
On Fri, May 12, 2017 at 11:17 AM, Clem Cole <clemc at ccc.com> wrote:
> George Gobble of Purdue did the FS work to V7/4.1 to fix the FS corruption
> issues. That was taken back by Kirk (wnj) and incorporated in 4.1A. It
> may have been before USENIX was creating proceedings. I'll have to look
> on my shelf at home or maybe ask George.
>
> Clem
>
> On Fri, May 12, 2017 at 11:12 AM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
> wrote:
>
>> > From: "Ron Natalie"
>>
>> > Ordered writes go back to the original BSD fast file system, no? I
>> seem
>> > to recall that when we switched from our V6/V7 disks, the
>> filesystem got
>> > a lot more stable in crashes.
>>
>> I had a vague memory of reading about that, so I looked in the canonical
>> FFS
>> paper (McKusick et al, "A Fast File System for UNIX" [1984)]) but found no
>> mention of it.
>>
>> I did find a paper about 'fsck' (McKusick, Kowalski, "Fsck: The UNIX File
>> System Check Program") which talks (in Section 2.5. "Updates to the file
>> system") about how "problem[s] with asynchronous inode updates can be
>> avoided
>> by doing all inode deallocations synchronously", but it's not clear if
>> they're
>> talking about something that was actually done, or just saying
>> (hypothetically) that that's how one would fix it.
>>
>> Is is possible that the changes to the file system (e.g. the way free
>> blocks
>> were kept) made it more crash-proof?
>>
>> Noel
>>
>>
>
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next prev parent reply other threads:[~2017-05-12 15:18 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-12 15:12 Noel Chiappa
2017-05-12 15:17 ` Clem Cole
2017-05-12 15:18 ` Clem Cole [this message]
2017-05-12 15:46 ` Clem Cole
[not found] <mailman.1.1494986402.2329.tuhs@minnie.tuhs.org>
2017-05-19 14:31 ` David
-- strict thread matches above, loose matches on Subject: below --
2017-05-16 13:20 Noel Chiappa
2017-05-16 13:46 ` Clem Cole
2017-05-14 21:44 Noel Chiappa
2017-05-13 1:25 Noel Chiappa
2017-05-13 0:44 Noel Chiappa
2017-05-13 0:51 ` Random832
2017-05-13 0:55 ` Dave Horsfall
2017-05-13 1:17 ` Chris Torek
2017-05-13 15:25 ` Steve Simon
2017-05-13 16:55 ` Clem Cole
2017-05-13 17:19 ` William Pechter
2017-05-14 12:55 ` Derek Fawcus
2017-05-14 22:12 ` Dave Horsfall
2017-05-15 1:24 ` Nemo
2017-05-15 18:00 ` Steve Johnson
2017-05-16 22:33 ` Ron Natalie
2017-05-16 23:13 ` Arthur Krewat
2017-05-16 23:18 ` Ron Natalie
2017-05-13 23:01 ` Dave Horsfall
2017-05-12 23:30 Noel Chiappa
2017-05-12 23:38 ` Dave Horsfall
2017-05-12 23:52 ` Random832
2017-05-13 0:26 ` Dave Horsfall
2017-05-13 0:48 ` Random832
2017-05-13 0:22 ` Clem Cole
2017-05-13 0:23 ` Clem Cole
2017-05-12 18:43 Doug McIlroy
2017-05-12 18:56 ` Dan Cross
2017-05-12 19:43 ` Clem Cole
2017-05-12 20:06 ` Clem Cole
2017-05-12 20:40 ` Jeremy C. Reed
2017-05-12 21:29 ` Clem Cole
2017-05-12 21:29 ` Ron Natalie
2017-05-11 17:08 Noel Chiappa
2017-05-11 21:34 ` Dave Horsfall
2017-05-11 14:07 Noel Chiappa
2017-05-11 14:21 ` Larry McVoy
2017-05-11 16:17 ` Clem Cole
2017-05-11 17:11 ` Michael Kjörling
2017-05-11 21:44 ` Dave Horsfall
2017-05-11 22:06 ` Warner Losh
2017-05-12 6:24 ` Hellwig Geisse
2017-05-12 21:12 ` Dave Horsfall
2017-05-12 23:25 ` Hellwig Geisse
2017-05-11 16:15 ` Clem Cole
2017-05-11 16:52 ` Warner Losh
2017-05-11 17:12 ` Clem Cole
2017-05-11 20:37 ` Ron Natalie
2017-05-11 22:25 ` Larry McVoy
2017-05-11 22:30 ` Ron Natalie
2017-05-11 23:47 ` Dave Horsfall
2017-05-11 23:48 ` Ron Natalie
2017-05-12 0:21 ` Larry McVoy
2017-05-12 2:42 ` Warner Losh
2017-05-12 0:16 ` Larry McVoy
2017-05-12 1:41 ` Wesley Parish
2017-05-12 1:05 ` Toby Thain
2017-05-12 8:17 ` Michael Kjörling
2017-05-12 13:56 ` Tim Bradshaw
2017-05-12 14:22 ` Michael Kjörling
2017-05-12 14:30 ` Larry McVoy
2017-05-12 15:11 ` Tim Bradshaw
2017-05-12 15:52 ` Chet Ramey
2017-05-12 16:21 ` Warner Losh
2017-05-12 8:15 ` Harald Arnesen
2017-05-14 4:30 ` Theodore Ts'o
2017-05-14 17:40 ` Clem Cole
2017-05-10 14:08 Diomidis Spinellis
2017-05-10 14:38 ` Steffen Nurpmeso
2017-05-10 23:09 ` Erik Berls
2017-05-11 12:40 ` Steffen Nurpmeso
2017-05-11 0:49 ` Clem Cole
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