Re: Linux 2.6.25-rc7 sparc64 loops forever on cat /proc/<pid>/pagemap

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From: Mariusz Kozlowski <m.kozlowski@...>

To: Linus Torvalds <torvalds@...>

Cc: Linux Kernel Mailing List <linux-kernel@...>, David Miller <davem@...>, <sparclinux@...>

Subject: Re: Linux 2.6.25-rc7 sparc64 loops forever on cat /proc/<pid>/pagemap

Date: Wednesday, March 26, 2008 - 8:02 am

Hello,

cat /proc/<pid>/pagemap 

and 

cat /proc/<pid>/task/<pid>/pagemap

eats up to 100% of CPU while looping forever somewhere. On the other
hand on my old x86 the same commands take well below 1s so I
guess that is the expected behaviour.

PS. I'll be offline till tommorow just in case I was sent some patches to test.

	Mariusz

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Messages in current thread:

Linux 2.6.25-rc7, Linus Torvalds, (Tue Mar 25, 10:07 pm)

Re: Linux 2.6.25-rc7 sparc64 loops forever on cat /proc/<..., Mariusz Kozlowski, (Wed Mar 26, 8:02 am)

Re: Linux 2.6.25-rc7 sparc64 loops forever on cat /proc/<..., David Miller, (Wed Mar 26, 8:35 pm)

Re: Linux 2.6.25-rc7 sparc64 loops forever on cat /proc/<..., Mariusz Kozlowski, (Fri Mar 28, 7:33 am)

sparc64 BUG: using smp_processor_id() in preemptible, Mariusz Kozlowski, (Wed Mar 26, 6:42 am)

Re: sparc64 BUG: using smp_processor_id() in preemptible, David Miller, (Wed Mar 26, 7:16 am)

Re: sparc64 BUG: using smp_processor_id() in preemptible, David Miller, (Wed Mar 26, 7:25 am)

Re: sparc64 BUG: using smp_processor_id() in preemptible, Andrew Morton, (Wed Mar 26, 11:25 pm)

Re: sparc64 BUG: using smp_processor_id() in preemptible, David Miller, (Thu Mar 27, 2:33 am)

Re: sparc64 BUG: using smp_processor_id() in preemptible, Mariusz Kozlowski, (Wed Mar 26, 7:46 am)

Re: sparc64 BUG: using smp_processor_id() in preemptible, David Miller, (Wed Mar 26, 7:51 am)

Re: sparc64 BUG: using smp_processor_id() in preemptible, Mariusz Kozlowski, (Wed Mar 26, 8:10 am)


linux-kernel:
David Miller	[GIT]: Networking
Fred .	Please add ZFS support (from GPL sources)
Pavel Roskin	[PATCH 2.6.25] module: allow ndiswrapper to use GPL-only symbols
David Howells	[PATCH 02/52] CRED: Give in_group_p() a cred pointer
git:
Dmitry Torokhov	Garbage in .git directories???
Dan Farina	backup or mirror a repository
Sergei Organov	Newbie: report of first experience with git-rebase.
Richard Quirk	git-cherry-pick no longer detecting moved files in 1.5.3.4
openbsd-misc:
Kevin	uvm_mapent_alloc: out of static map entries on 4.3 i386
GVG GVG	ssh_exchange_identification: Connection closed by remote host
Douglas A. Tutty	how get colour mutt when ssh from OBSD?
Brandon Lee	DELL PERC 5iR slow performance
netbsd-tech-kern:
Hubert Feyrer	Compressed vnd handling tested successfully
Jaromir Dolecek	Arch-specific maxproc limit?
YAMAMOTO Takashi	scheduler_wait_hook
David Laight	Re: Integrating securelevel and kauth(9)


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Re: Linux 2.6.25-rc7 sparc64 loops forever on cat /proc/<pid>/pagemap

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