From owner-linux-mm-bugs@nl.linux.org Wed Jan 31 20:07:41 2001 Received: by humbolt.nl.linux.org id ; Wed, 31 Jan 2001 20:07:26 +0100 Received: from distro.conectiva.com.br ([200.250.58.149]:19731 "EHLO distro.conectiva.com.br") by humbolt.nl.linux.org with ESMTP id ; Wed, 31 Jan 2001 20:06:56 +0100 Received: (from nobody@localhost) by distro.conectiva.com.br (8.9.3/8.9.3) id QAA03552; Wed, 31 Jan 2001 16:06:47 -0200 Date: Wed, 31 Jan 2001 16:06:47 -0200 Message-Id: <200101311806.QAA03552@distro.conectiva.com.br> From: bugzilla-daemon@distro.conectiva.com.br To: linux-mm-bugs@nl.linux.org Subject: [Bug 1174] New - vm_enough_memory() doesn't see icache/dcache Sender: owner-linux-mm-bugs@nl.linux.org Precedence: bulk Reply-To: linux-mm-bugs@nl.linux.org Return-Path: X-Orcpt: rfc822;linux-mm-bugs-list http://distro.conectiva.com.br/bugzilla/show_bug.cgi?id=1174 --- shadow/1174 Wed Jan 31 16:06:46 2001 +++ shadow/1174.tmp.3548 Wed Jan 31 16:06:46 2001 @@ -0,0 +1,26 @@ ++============================================================================+ +| vm_enough_memory() doesn't see icache/dcache | ++----------------------------------------------------------------------------+ +| Bug #: 1174 Product: Linux kernel MM | +| Status: NEW Version: 2.4 (stable) | +| Resolution: Platform: All | +| Severity: normal OS/Version: Linux | +| Priority: P2 Component: linux mm | ++----------------------------------------------------------------------------+ +| Assigned To: linux-mm-bugs@nl.linux.org | +| Reported By: riel@conectiva.com.br | +| CC list: Cc: | ++----------------------------------------------------------------------------+ +| URL: | ++============================================================================+ +| DESCRIPTION | +after eg. 'slocate -u' systems can end up with significant amounts of memory in +the inode_cache and the dentry_cache ... (I've seen it take 90MB on my 192MB +workstation) + +though this memory is freeable, vm_enough_memory() doesn't "see" this memory, +meaning that allocations for which memory is available can be denied + +the solution is to fix mm/mmap.c::vm_enough_memory() to know about the memory +use of the inode and dentry cache and take this into account when doing the +calculation \ No newline at end of file - Linux-mm-bugs: bugzilla list for the Linux-MM subsystem Archive: http://mail.nl.linux.org/linux-mm-bugs/ Web site: http://www.linux.eu.org/Linux-MM/ Development: linux-mm@kvack.org From owner-linux-mm-bugs@nl.linux.org Wed Jan 31 20:57:15 2001 Received: by humbolt.nl.linux.org id ; Wed, 31 Jan 2001 20:57:05 +0100 Received: from distro.conectiva.com.br ([200.250.58.149]:22547 "EHLO distro.conectiva.com.br") by humbolt.nl.linux.org with ESMTP id ; Wed, 31 Jan 2001 20:56:51 +0100 Received: (from nobody@localhost) by distro.conectiva.com.br (8.9.3/8.9.3) id QAA04934; Wed, 31 Jan 2001 16:54:08 -0200 Date: Wed, 31 Jan 2001 16:54:08 -0200 Message-Id: <200101311854.QAA04934@distro.conectiva.com.br> From: bugzilla-daemon@distro.conectiva.com.br To: linux-mm-bugs@nl.linux.org Subject: [Bug 1175] New - swap readahead sets the page referenced bit Sender: owner-linux-mm-bugs@nl.linux.org Precedence: bulk Reply-To: linux-mm-bugs@nl.linux.org Return-Path: X-Orcpt: rfc822;linux-mm-bugs-list http://distro.conectiva.com.br/bugzilla/show_bug.cgi?id=1175 --- shadow/1175 Wed Jan 31 16:54:08 2001 +++ shadow/1175.tmp.4930 Wed Jan 31 16:54:08 2001 @@ -0,0 +1,27 @@ ++============================================================================+ +| swap readahead sets the page referenced bit | ++----------------------------------------------------------------------------+ +| Bug #: 1175 Product: Linux kernel MM | +| Status: NEW Version: 2.4 (stable) | +| Resolution: Platform: | +| Severity: normal OS/Version: | +| Priority: P2 Component: linux mm | ++----------------------------------------------------------------------------+ +| Assigned To: linux-mm-bugs@nl.linux.org | +| Reported By: marcelo@conectiva.com.br | +| CC list: Cc: | ++----------------------------------------------------------------------------+ +| URL: | ++============================================================================+ +| DESCRIPTION | +The swapin readahead code uses the function read_swap_cache_async()" +for each page it wants to readahead. + +Now this function (read_swap_cache_async()) uses __find_page_nolock, which moves +the page to the active list, or sets the referenced bit on the page (this will +end up aging the page up later). + +Pages which are being readahead should be left "old", so in case they are not +used by any process, they get freed before other (probably more useful) pages. + +This can be easily fixed using Rik's __find_page_simple(). \ No newline at end of file - Linux-mm-bugs: bugzilla list for the Linux-MM subsystem Archive: http://mail.nl.linux.org/linux-mm-bugs/ Web site: http://www.linux.eu.org/Linux-MM/ Development: linux-mm@kvack.org From owner-linux-mm-bugs@nl.linux.org Wed Jan 31 22:17:30 2001 Received: by humbolt.nl.linux.org id ; Wed, 31 Jan 2001 22:17:09 +0100 Received: from distro.conectiva.com.br ([200.250.58.149]:34323 "EHLO distro.conectiva.com.br") by humbolt.nl.linux.org with ESMTP id ; Wed, 31 Jan 2001 22:16:52 +0100 Received: (from nobody@localhost) by distro.conectiva.com.br (8.9.3/8.9.3) id SAA06353; Wed, 31 Jan 2001 18:15:22 -0200 Date: Wed, 31 Jan 2001 18:15:22 -0200 Message-Id: <200101312015.SAA06353@distro.conectiva.com.br> From: bugzilla-daemon@distro.conectiva.com.br To: linux-mm-bugs@nl.linux.org Subject: [Bug 1177] New - VM: undead swap entry xxx Sender: owner-linux-mm-bugs@nl.linux.org Precedence: bulk Reply-To: linux-mm-bugs@nl.linux.org Return-Path: X-Orcpt: rfc822;linux-mm-bugs-list http://distro.conectiva.com.br/bugzilla/show_bug.cgi?id=1177 --- shadow/1177 Wed Jan 31 18:15:22 2001 +++ shadow/1177.tmp.6349 Wed Jan 31 18:15:22 2001 @@ -0,0 +1,18 @@ ++============================================================================+ +| VM: undead swap entry xxx | ++----------------------------------------------------------------------------+ +| Bug #: 1177 Product: Linux kernel MM | +| Status: NEW Version: 2.4 (stable) | +| Resolution: Platform: | +| Severity: minor OS/Version: | +| Priority: P2 Component: linux mm | ++----------------------------------------------------------------------------+ +| Assigned To: linux-mm-bugs@nl.linux.org | +| Reported By: riel@conectiva.com.br | +| CC list: Cc: | ++----------------------------------------------------------------------------+ +| URL: | ++============================================================================+ +| DESCRIPTION | +kernel 2.4.1 still has the "VM: undead swap entry" problem every once in a while +when doing swapoff on a loaded system \ No newline at end of file - Linux-mm-bugs: bugzilla list for the Linux-MM subsystem Archive: http://mail.nl.linux.org/linux-mm-bugs/ Web site: http://www.linux.eu.org/Linux-MM/ Development: linux-mm@kvack.org From owner-linux-mm-bugs@nl.linux.org Wed Jan 31 22:17:44 2001 Received: by humbolt.nl.linux.org id ; Wed, 31 Jan 2001 22:17:20 +0100 Received: from distro.conectiva.com.br ([200.250.58.149]:34579 "EHLO distro.conectiva.com.br") by humbolt.nl.linux.org with ESMTP id ; Wed, 31 Jan 2001 22:16:57 +0100 Received: (from nobody@localhost) by distro.conectiva.com.br (8.9.3/8.9.3) id SAA06380; Wed, 31 Jan 2001 18:17:29 -0200 Date: Wed, 31 Jan 2001 18:17:29 -0200 Message-Id: <200101312017.SAA06380@distro.conectiva.com.br> From: bugzilla-daemon@distro.conectiva.com.br To: linux-mm-bugs@nl.linux.org Subject: [Bug 1178] New - re-balance page_launder(), ... in 2.4.1 Sender: owner-linux-mm-bugs@nl.linux.org Precedence: bulk Reply-To: linux-mm-bugs@nl.linux.org Return-Path: X-Orcpt: rfc822;linux-mm-bugs-list http://distro.conectiva.com.br/bugzilla/show_bug.cgi?id=1178 --- shadow/1178 Wed Jan 31 18:17:29 2001 +++ shadow/1178.tmp.6376 Wed Jan 31 18:17:29 2001 @@ -0,0 +1,20 @@ ++============================================================================+ +| re-balance page_launder(), ... in 2.4.1 | ++----------------------------------------------------------------------------+ +| Bug #: 1178 Product: Linux kernel MM | +| Status: NEW Version: 2.4 (stable) | +| Resolution: Platform: | +| Severity: normal OS/Version: | +| Priority: P2 Component: linux mm | ++----------------------------------------------------------------------------+ +| Assigned To: linux-mm-bugs@nl.linux.org | +| Reported By: riel@conectiva.com.br | +| CC list: Cc: | ++----------------------------------------------------------------------------+ +| URL: | ++============================================================================+ +| DESCRIPTION | +2.4.1 performance should be pretty bad due to some changes made by Linus and +Marcelo - good changes, mind you, but with some side effects. + +This is easy to fix and will be fixed by Rik van Riel \ No newline at end of file - Linux-mm-bugs: bugzilla list for the Linux-MM subsystem Archive: http://mail.nl.linux.org/linux-mm-bugs/ Web site: http://www.linux.eu.org/Linux-MM/ Development: linux-mm@kvack.org From owner-linux-mm-bugs@nl.linux.org Wed Jan 31 23:27:41 2001 Received: by humbolt.nl.linux.org id ; Wed, 31 Jan 2001 23:27:22 +0100 Received: from distro.conectiva.com.br ([200.250.58.149]:9220 "EHLO distro.conectiva.com.br") by humbolt.nl.linux.org with ESMTP id ; Wed, 31 Jan 2001 23:26:52 +0100 Received: (from nobody@localhost) by distro.conectiva.com.br (8.9.3/8.9.3) id TAA07275; Wed, 31 Jan 2001 19:21:03 -0200 Date: Wed, 31 Jan 2001 19:21:03 -0200 Message-Id: <200101312121.TAA07275@distro.conectiva.com.br> From: bugzilla-daemon@distro.conectiva.com.br Cc: linux-mm-bugs@nl.linux.org Subject: [Bug 1178] Changed - re-balance page_launder(), ... in 2.4.1 To: unlisted-recipients:; (no To-header on input) Sender: owner-linux-mm-bugs@nl.linux.org Precedence: bulk Reply-To: linux-mm-bugs@nl.linux.org Return-Path: X-Orcpt: rfc822;linux-mm-bugs-list http://distro.conectiva.com.br/bugzilla/show_bug.cgi?id=1178 --- shadow/1178 Wed Jan 31 18:17:29 2001 +++ shadow/1178.tmp.7260 Wed Jan 31 19:21:03 2001 @@ -3,11 +3,11 @@ +----------------------------------------------------------------------------+ | Bug #: 1178 Product: Linux kernel MM | | Status: NEW Version: 2.4 (stable) | -| Resolution: Platform: | -| Severity: normal OS/Version: | +| Resolution: Platform: All | +| Severity: normal OS/Version: Linux | | Priority: P2 Component: linux mm | +----------------------------------------------------------------------------+ -| Assigned To: linux-mm-bugs@nl.linux.org | +| Assigned To: riel@conectiva.com.br | | Reported By: riel@conectiva.com.br | | CC list: Cc: | +----------------------------------------------------------------------------+ @@ -18,3 +18,7 @@ Marcelo - good changes, mind you, but with some side effects. This is easy to fix and will be fixed by Rik van Riel \ No newline at end of file + +------- Additional Comments From riel@conectiva.com.br 2001-01-31 19:21 ------- +assigned to myself since I'm busy working on it +(oh, and to test http://linux-mm.org/bugzilla.shtml ;)) \ No newline at end of file - Linux-mm-bugs: bugzilla list for the Linux-MM subsystem Archive: http://mail.nl.linux.org/linux-mm-bugs/ Web site: http://www.linux.eu.org/Linux-MM/ Development: linux-mm@kvack.org