From: "Toralf Förster" <toralf.foerster@gmx.de>
To: UML devel <user-mode-linux-devel@lists.sourceforge.net>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: why does index in truncate_inode_pages_range() grows so much ?
Date: Sun, 24 Nov 2013 16:14:21 +0100 [thread overview]
Message-ID: <529217CD.1000204@gmx.de> (raw)
At a 32 bit guest UML with current kernel git tree I putted a printk
into that function :
void truncate_inode_pages_range(struct address_space *mapping,
loff_t lstart, loff_t lend)
{
...
cond_resched();
index++;
printk (" <------------
and got (while fuzzying the UML guest with trinity) this output in the
UML guest:
Nov 24 12:06:53 trinity kernel: index:42 end:4294967295
Nov 24 12:06:53 trinity kernel: index:43 end:4294967295
Nov 24 12:06:53 trinity kernel: index:5 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1035468800 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:16 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:4 end:4294967295
Nov 24 12:06:53 trinity kernel: index:2 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:4184867847 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
Nov 24 12:06:53 trinity kernel: index:3 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1727 end:4294967295
Nov 24 12:06:53 trinity kernel: index:1 end:4294967295
I'm wondering if index is expected to become sometimes so big.
--
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
next reply other threads:[~2013-11-24 15:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-24 15:14 Toralf Förster [this message]
2013-12-03 14:02 ` why does index in truncate_inode_pages_range() grows so much ? Jan Kara
2013-12-03 19:43 ` Toralf Förster
2013-12-03 23:00 ` Jan Kara
2013-12-04 13:06 ` Jan Kara
2013-12-07 18:06 ` Toralf Förster
2013-12-11 20:26 ` Jan Kara
2013-12-13 9:52 ` Toralf Förster
2013-12-13 10:51 ` [uml-devel] " Richard Weinberger
2013-12-13 13:01 ` Toralf Förster
2013-12-13 19:10 ` Jan Kara
2013-12-05 23:23 ` Toralf Förster
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