[pzaitcev@r2 pzaitcev]$ grep mm_struct /proc/slabinfo ; date mm_struct 57385 57390 256 3826 3826 1 Wed Apr 7 14:36:36 PDT 2004 [pzaitcev@r2 pzaitcev]$ uptime 14:36:42 up 6 days, 19:48, 3 users, load average: 0.71, 0.82, 0.76 [pzaitcev@r2 pzaitcev]$ It leaks one mm_struct about every 10 seconds at normal load. The system is a general purpose ISP server, apache, sendmail, etc. They run a Gingin kernel I built off a CVS branch. It is a normal gingin with only a fix for task_struct leaking when a fork fails. I womder if this is related. [pzaitcev@r2 pzaitcev]$ uname -a Linux r2.artoo.net 2.4.20-30.9.forkfix.1 #1 Fri Feb 20 16:55:18 EST 2004 i686 athlon i386 GNU/Linux [pzaitcev@r2 pzaitcev]$ [pzaitcev@r2 pzaitcev]$ /sbin/lsmod Module Size Used by Not tainted iptable_filter 2444 0 (autoclean) (unused) ip_tables 14648 1 [iptable_filter] autofs 13108 0 (autoclean) (unused) w83781d 22480 0 i2c-proc 9104 0 [w83781d] i2c-isa 1896 0 (unused) i2c-core 19140 0 [w83781d i2c-proc i2c-isa] 8139too 18120 1 mii 3992 0 [8139too] ipv6 174804 -1 ohci1394 19912 0 (unused) ieee1394 48780 0 [ohci1394] nls_iso8859-1 3548 16 (autoclean) loop 12056 48 (autoclean) keybdev 2912 0 (unused) mousedev 5428 0 (unused) hid 21924 0 (unused) input 5824 0 [keybdev mousedev hid] ehci-hcd 19816 0 (unused) usb-ohci 21320 0 (unused) usbcore 78304 1 [hid ehci-hcd usb-ohci] ext3 69984 5 jbd 51508 5 [ext3] [pzaitcev@r2 pzaitcev]$
gingin eol.
A fix for this problem has just been committed to the RHEL3 U3 patch pool this evening (in kernel version 2.4.21-15.13.EL).
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2004-433.html