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* why does index in truncate_inode_pages_range() grows so much ?
@ 2013-11-24 15:14 Toralf Förster
  2013-12-03 14:02 ` Jan Kara
  0 siblings, 1 reply; 12+ messages in thread
From: Toralf Förster @ 2013-11-24 15:14 UTC (permalink / raw)
  To: UML devel; +Cc: Linux Kernel

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

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2013-12-13 19:10 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-11-24 15:14 why does index in truncate_inode_pages_range() grows so much ? Toralf Förster
2013-12-03 14:02 ` 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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