From: Larry McVoy <lm@bitmover.com>
To: Steven Cole <elenstev@mesatop.com>
Cc: Andrew Morton <akpm@osdl.org>,
adi@bitmover.com, scole@lanl.gov, support@bitmover.com,
torvalds@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.)
Date: Sun, 16 May 2004 19:28:16 -0700 [thread overview]
Message-ID: <20040517022816.GA14939@work.bitmover.com> (raw)
In-Reply-To: <200405151923.41353.elenstev@mesatop.com>
> renumber: can't read SCCS info in "SCCS/s.ChangeSet".
Be aware that how BK does I/O is with write() on the way out but with
mmap on the way in. The process which forked renumber has just written
the file and the renumber process is reading it with mmap.
If there are still any problems with mixing read/write and mmap then that
may be a prolem but I would have expected to see things start going
wrong on a page boundary and the one core dump I saw was page aligned
at the tail but not at the head, it started in the middle of the page.
I've told my team to drop this unless someone can show that it happens
on other kernels, this smells like a kernel bug to me, if it were a BK
bug we should have been getting hundreds of complaints by now. We can
jump back on it if need be, let us know if you think it is a BK problem
after all.
--
---
Larry McVoy lm at bitmover.com http://www.bitkeeper.com
next prev parent reply other threads:[~2004-05-17 2:28 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <6616858C-A5AF-11D8-A7EA-000A95CC3A8A@lanl.gov>
[not found] ` <200405122234.06902.elenstev@mesatop.com>
[not found] ` <15594C37-A509-11D8-A7EA-000A95CC3A8A@lanl.gov>
[not found] ` <20040513183316.GE17965@bitmover.com>
2004-05-14 4:32 ` 1352 NUL bytes at the end of a page? Steven Cole
[not found] ` <20040514144617.GE20197@work.bitmover.com>
[not found] ` <200405131723.15752.elenstev@mesatop.com>
2004-05-14 16:53 ` 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.) Andy Isaacson
2004-05-14 17:23 ` Steven Cole
2004-05-15 0:54 ` Steven Cole
2004-05-15 1:55 ` 1352 NUL bytes at the end of a page? Wayne Scott
2004-05-15 3:15 ` 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.) Lincoln Dale
2004-05-15 3:41 ` Andrew Morton
2004-05-15 5:39 ` Steven Cole
2004-05-16 1:23 ` Steven Cole
2004-05-16 2:18 ` Linus Torvalds
2004-05-16 3:44 ` Linus Torvalds
2004-05-16 4:31 ` Steven Cole
2004-05-16 4:52 ` Linus Torvalds
2004-05-16 5:22 ` Andrea Arcangeli
2004-05-16 15:28 ` Steven Cole
2004-05-16 17:49 ` Rutger Nijlunsing
2004-05-16 20:38 ` Andrea Arcangeli
2004-05-16 21:19 ` Steven Cole
2004-05-16 21:29 ` Andrew Morton
2004-05-16 22:11 ` Steven Cole
2004-05-16 23:53 ` Andrea Arcangeli
2004-05-17 2:12 ` Steven Cole
2004-05-17 8:21 ` R. J. Wysocki
2004-05-16 5:54 ` Steven Cole
2004-05-16 6:09 ` Andrew Morton
2004-05-16 6:24 ` Andrew Morton
2004-05-16 10:01 ` Andrew Morton
2004-05-16 13:49 ` Steven Cole
2004-05-18 1:47 ` Benjamin Herrenschmidt
2004-05-16 3:20 ` Andrew Morton
2004-05-16 3:58 ` Linus Torvalds
2004-05-17 2:28 ` Larry McVoy [this message]
2004-05-17 2:42 ` Linus Torvalds
2004-05-17 3:36 ` Steven Cole
2004-05-17 5:17 ` Linus Torvalds
2004-05-17 6:11 ` Andrew Morton
2004-05-17 13:56 ` 1352 NUL bytes at the end of a page? Wayne Scott
2004-05-17 15:17 ` Theodore Ts'o
2004-05-17 15:20 ` Larry McVoy
2004-05-17 15:22 ` Linus Torvalds
2004-05-17 15:25 ` Larry McVoy
2004-05-17 15:37 ` viro
2004-05-17 17:30 ` Steven Cole
2004-05-17 17:40 ` viro
2004-05-17 17:39 ` Steven Cole
2004-05-17 19:06 ` viro
2004-05-17 15:40 ` Arjan van de Ven
2004-05-17 15:53 ` Steven Cole
2004-05-17 16:23 ` Davide Libenzi
2004-05-17 16:28 ` Davide Libenzi
2004-05-17 14:07 ` 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.) Larry McVoy
2004-05-17 14:12 ` Linus Torvalds
2004-05-17 7:25 ` Andrew Morton
2004-05-17 7:46 ` Andrew Morton
2004-05-17 8:39 ` Vladimir Saveliev
2004-05-17 8:44 ` Andrew Morton
2004-05-17 11:58 ` Steven Cole
2004-05-17 14:05 ` Larry McVoy
2004-05-17 14:14 ` Larry McVoy
2004-05-17 14:32 ` Linus Torvalds
2004-05-17 14:52 ` Larry McVoy
2004-05-17 15:02 ` Linus Torvalds
2004-05-17 15:05 ` Larry McVoy
2004-05-17 15:23 ` Chris Mason
2004-05-17 15:49 ` Steven Cole
2004-05-17 20:24 ` Chris Mason
2004-05-17 21:08 ` Steven Cole
2004-05-17 21:29 ` Andrew Morton
2004-05-17 22:15 ` Steven Cole
2004-05-17 23:52 ` Steven Cole
2004-05-18 0:03 ` Chris Mason
2004-05-18 0:15 ` Andrew Morton
2004-05-18 0:13 ` Andrew Morton
2004-05-18 0:45 ` Steven Cole
2004-05-18 1:34 ` Larry McVoy
2004-05-18 1:42 ` Andrew Morton
2004-05-18 1:56 ` Steven Cole
2004-05-17 14:11 ` Larry McVoy
[not found] ` <200405172142.52780.elenstev@mesatop.com>
[not found] ` <Pine.LNX.4.58.0405172056480.25502@ppc970.osdl.org>
[not found] ` <200405172319.38853.elenstev@mesatop.com>
2004-05-18 12:42 ` Chris Mason
2004-05-18 14:29 ` Steven Cole
2004-05-18 14:38 ` Linus Torvalds
2004-05-19 10:53 ` Steven Cole
2004-05-19 12:10 ` Chris Mason
2004-05-19 12:20 ` 1352 NUL bytes at the end of a page? Wayne Scott
2004-05-19 12:42 ` Nick Piggin
2004-05-19 13:28 ` Steven Cole
2004-05-19 13:36 ` Chris Mason
2004-05-19 13:59 ` Steven Cole
2004-05-19 14:03 ` Wayne Scott
2004-05-19 14:08 ` Chris Mason
2004-05-19 14:20 ` Steven Cole
2004-05-19 14:45 ` Steven Cole
2004-05-19 21:11 ` Non-regression for current kernel (was Re: 1352 NUL bytes at the end of a page?) Steven Cole
2004-05-17 15:35 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.) Albert Cahalan
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