From: Russell King <rmk@arm.linux.org.uk>
To: Linux Kernel List <linux-kernel@vger.kernel.org>
Subject: 2.5.66: task_struct memory leak?
Date: Tue, 25 Mar 2003 15:51:04 +0000 [thread overview]
Message-ID: <20030325155104.B24418@flint.arm.linux.org.uk> (raw)
Hi,
With 2.5.66, I'm seeing what can only be described as a severe memory
leak. This isn't something that I noticed on 2.5.65 - in fact, I have
several ARM machines happily running 2.5.65.
The leak seems to be centred around the task_struct slab, which seems
to do nothing but continually grow:
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1868 1868 920 467 467 1 : 32 16 : 1868 1916 467 0 0 0 36 : 1509 496 139 0
...
bash-2.04# ps aux | wc -l
20
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1892 1892 920 473 473 1 : 32 16 : 1892 1956 473 0 0 0 36 : 1519 511 139 0
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1892 1892 920 473 473 1 : 32 16 : 1892 1957 473 0 0 0 36 : 1519 512 139 0
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1896 1896 920 474 474 1 : 32 16 : 1896 1961 474 0 0 0 36 : 1519 513 139 0
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1896 1896 920 474 474 1 : 32 16 : 1896 1961 474 0 0 0 36 : 1520 513 139 0
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1896 1896 920 474 474 1 : 32 16 : 1896 1961 474 0 0 0 36 : 1521 513 139 0
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1896 1896 920 474 474 1 : 32 16 : 1896 1961 474 0 0 0 36 : 1522 513 139 0
bash-2.04# grep task_struct /proc/slabinfo
task_struct 1900 1900 920 475 475 1 : 32 16 : 1900 1965 475 0 0 0 36 : 1522 514 139 0
mm_struct seems to be fairly constant, so these are at least getting freed:
mm_struct 24 36 320 3 3 1 : 32 16 : 120 739 11 2 0 0 44 : 3144 53 3183 5
I'm seeing memory disappear at a rate of 8K / process, which seems to
suggest that the ARM level 1 page tables aren't getting freed either.
Is anyone seeing this type of behaviour on x86?
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
next reply other threads:[~2003-03-25 15:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-25 15:51 Russell King [this message]
2003-03-25 16:11 ` Sean Neakums
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030325155104.B24418@flint.arm.linux.org.uk \
--to=rmk@arm.linux.org.uk \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®