From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from raistlin.arm.linux.org.uk (root@raistlin [192.168.0.3]) by caramon.arm.linux.org.uk (8.9.3/8.9.3) with ESMTP id RAA00914 for ; Fri, 28 Apr 2000 17:47:20 +0100 From: Russell King Received: (from rmk@localhost) by raistlin.arm.linux.org.uk (8.7.4/8.7.3) id RAA01548 for linux-mm@kvack.org; Fri, 28 Apr 2000 17:41:44 +0100 Message-Id: <200004281641.RAA01548@raistlin.arm.linux.org.uk> Subject: Re: Memory Test Suite v0.0.2 Date: Fri, 28 Apr 2000 17:41:43 +0100 (BST) In-Reply-To: from "Juan J. Quintela" at Apr 28, 2000 12:34:07 AM MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org List-ID: Juan J. Quintela writes: > Memory test suite v0.0.2 I've just been trying this package out on a NetWinder, and I've just deadlocked 2.3.99-pre6 - I've got 0KB memory free! I changed misc_lib.h to reflect the amount of RAM I have in this machine (32MB). I ran ./mmap002 twice - the first time it got a bus error. The second time it didn't even make it to the first msync() call. Here is the mem and state info. If there's anything other info you want, let me know - its extremely easy to cause this. <6>SysRq: Show Memory Mem-info: Free pages: 0kB ( 0kB HighMem) ( Free: 0, lru_cache: 6495 (64 128 192) ) DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB = 0kB) Normal: = 0kB) HighMem: = 0kB) Swap cache: add 14628, delete 14453, find 4642/14916 Free swap: 59724kB 8192 pages of RAM 195 free pages 684 reserved pages 7847 pages shared 175 pages swap cached 0 page tables cached Buffer memory: 120kB <6>SysRq: Show State free sibling task PC stack pid father child younger older init D C003EC8C 16 1 0 623 (NOTLB) sig: 0 0000000000000000 0000000000000000 : X kswapd D C003EC8C 0 2 1 (L-TLB) 3 sig: 0 0000000000000000 ffffffffffffffff : X kflushd S C003EC8C 0 3 1 (L-TLB) 4 2 sig: 0 0000000000000000 ffffffffffffffff : X kupdate S C003EC8C 12 4 1 (L-TLB) 127 3 sig: 0 0000000000000000 fffffffffff9ffff : X kerneld S C003EC8C 0 127 1 (NOTLB) 227 4 sig: 0 0000000000000000 0000000000000000 : X pump S C003EC8C 0 227 1 (NOTLB) 324 127 sig: 0 0000000000000000 0000000000000000 : X portmap S C003EC8C 0 324 1 (NOTLB) 376 227 sig: 0 0000000000000000 0000000000000000 : X syslogd D C003EC8C 1552 376 1 (NOTLB) 386 324 sig: 1 0000000000002000 0000000000000000 : X klogd D C003EC8C 1356 386 1 (NOTLB) 401 376 sig: 0 0000000000000000 0000000000000000 : X atd S C003EC8C 0 401 1 (NOTLB) 416 386 sig: 0 0000000000000000 0000000000010000 : X crond D C003EC8C 0 416 1 (NOTLB) 431 401 sig: 0 0000000000000000 0000000000010000 : X inetd S C003EC8C 4 431 1 (NOTLB) 440 416 sig: 0 0000000000000000 0000000000000000 : X sshd S C003EC8C 0 440 1 (NOTLB) 455 431 sig: 0 0000000000000000 0000000000000000 : X xntpd D C003EC8C 0 455 1 (NOTLB) 470 440 sig: 1 0000000000002000 0000000000000000 : X lpd S C003EC8C 0 470 1 (NOTLB) 485 455 sig: 0 0000000000000000 0000000000000000 : X rpc.mountd D C003EC8C 0 485 1 (NOTLB) 495 470 sig: 1 0000000000002000 0000000000000000 : X rpc.nfsd D C003EC8C 0 495 1 (NOTLB) 535 485 sig: 1 0000000000002000 0000000000000000 : X automount S C003EC8C 0 535 1 (NOTLB) 537 495 sig: 0 0000000000000000 0000000000000000 : X automount S C003EC8C 0 537 1 (NOTLB) 565 535 sig: 0 0000000000000000 0000000000000000 : X sendmail D C003EC8C 0 565 1 (NOTLB) 581 537 sig: 0 0000000000000000 0000000000000000 : X gpm S C003EC8C 0 581 1 (NOTLB) 606 565 sig: 0 0000000000000000 0000000000000000 : X xfs D C003EC8C 3044 606 1 (NOTLB) 618 581 sig: 0 0000000000000000 0000000000000000 : X login S C003EC8C 180 618 1 626 (NOTLB) 619 606 sig: 0 0000000000000000 0000000000000000 : X login S C003EC8C 0 619 1 647 (NOTLB) 620 618 sig: 0 0000000000000000 0000000000000000 : X mingetty D C003EC8C 0 620 1 (NOTLB) 621 619 sig: 0 0000000000000000 0000000000000000 : X mingetty S C003EC8C 0 621 1 (NOTLB) 622 620 sig: 0 0000000000000000 0000000000000000 : X mingetty S C003EC8C 0 622 1 (NOTLB) 623 621 sig: 0 0000000000000000 0000000000000000 : X mingetty S C003EC8C 480 623 1 (NOTLB) 622 sig: 0 0000000000000000 0000000000000000 : X bash S C003EC8C 968 626 618 666 (NOTLB) sig: 0 0000000000000000 0000000000010000 : X bash S C003EC8C 0 647 619 661 (NOTLB) sig: 0 0000000000000000 0000000000010000 : X top D C003EC8C 8 661 647 (NOTLB) sig: 0 0000000000000000 0000000000000000 : X strace S C003EC8C 0 666 626 667 (NOTLB) sig: 0 0000000000000000 0000000000000000 : X mmap002 D C003EC8C 0 667 666 (NOTLB) sig: 0 0000000000000000 0000000000000000 : X _____ |_____| ------------------------------------------------- ---+---+- | | Russell King rmk@arm.linux.org.uk --- --- | | | | http://www.arm.linux.org.uk/~rmk/aboutme.html / / | | +-+-+ --- -+- / | THE developer of ARM Linux |+| /|\ / | | | --- | +-+-+ ------------------------------------------------- /\\\ | -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/