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From: Andreas Schwab <schwab@linux-m68k.org>
To: Josef Bacik <jbacik@fusionio.com>
Cc: Thorsten Glaser <tg@mirbsd.de>, Joe Perches <joe@perches.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Debian GNU/Linux m68k <debian-68k@lists.debian.org>,
	<linux-btrfs@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>
Subject: Re: btrfs zero divide
Date: Fri, 09 Aug 2013 14:26:36 +0200	[thread overview]
Message-ID: <87eha33v9f.fsf@igel.home> (raw)
In-Reply-To: <20130730204001.GG24583@localhost.localdomain> (Josef Bacik's message of "Tue, 30 Jul 2013 16:40:01 -0400")

Josef Bacik <jbacik@fusionio.com> writes:

> So stripe_len shouldn't be 0, if it is you have bigger problems :).

The bigger problem is that stripe_nr is u64, this is completely bogus.
The first operand of do_div must be u32.  This goes through the whole
file.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

  parent reply	other threads:[~2013-08-09 12:26 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.BSM.4.64L.1307300820160.20675@herc.mirbsd.org>
2013-07-30  9:07 ` btrfs zero divide (was: Re: Linux 3.10 problem reports (yes, plural)) Geert Uytterhoeven
2013-07-30 15:40   ` btrfs zero divide Thorsten Glaser
2013-07-30 17:13   ` btrfs zero divide (was: Re: Linux 3.10 problem reports (yes, plural)) Josef Bacik
2013-07-30 17:36     ` Joe Perches
2013-07-30 19:02     ` btrfs zero divide Thorsten Glaser
2013-07-30 20:40       ` Josef Bacik
2013-07-30 21:05         ` Joe Perches
2013-07-30 21:25           ` Thorsten Glaser
2013-08-08 20:01           ` Thorsten Glaser
2013-08-09 12:26         ` Andreas Schwab [this message]
2013-08-09 12:30           ` Andreas Schwab
2013-08-09 14:35             ` Josef Bacik
2013-08-13 12:12             ` Geert Uytterhoeven
2013-08-09 18:04           ` Zach Brown
2013-08-13 16:32             ` Geert Uytterhoeven
2013-08-14  8:40               ` Geert Uytterhoeven
2013-08-14  8:56                 ` Geert Uytterhoeven
2013-08-14 18:07                   ` Joe Perches

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