Date: Wed, 9 Jul 1997 11:35:32 -0700 (PDT) From: "Jin Guojun[ITG]" <jin@adv-pc-1.lbl.gov> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/4070: cannot access over 64MB memory Message-ID: <199707091835.LAA00345@adv-pc-1.lbl.gov> Resent-Message-ID: <199707091840.LAA00338@hub.freebsd.org>
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>Number: 4070 >Category: kern >Synopsis: cannot access over 64MB memory >Confidential: yes >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jul 9 11:40:06 PDT 1997 >Last-Modified: >Originator: Jin Guojun[ITG] >Organization: >Release: FreeBSD 2.2-970618-RELENG i386 >Environment: 2.2x to 3.0-SNAP releases >Description: options "MAXMEM=(256x1024)" supposes to enable more than 64 MB memory, but only 64MB memory can be accessed regardless how many memory detected by kernel. # dmesg | grep mem real memory = 134217728 (131072K bytes) Physical memory hole(s): avail memory = 127311872 (124328K bytes) chip0 <Intel 82437VX PCI cache memory controller> rev 2 on pci0:0:0 # mem-test -S 512 512 384 begin processing: Wed Jul 9 11:20:27 1997 mem-test [S20-1] : no enough core available for inbuf -> 1H x 6000000H = 100663296; Error<12> Cannot allocate memory # mem-test -S 512 512 258 begin processing: Wed Jul 9 11:28:22 1997 mem-test [S20-1] : no enough core available for inbuf -> 1H x 4080000H = 67633152; Error<12> Cannot allocate memory # mem-test -S 512 512 256 begin processing: Wed Jul 9 11:28:39 1997 end of allocating: at 1 seconds device stdin not ready Using CTRL-D to continue=> end of reading: at 3 seconds Reading image 0 cells, rest 67108864 are 0 512 frames, 512 rows, 256 columns => memory 67108864 (execute 12 columns for -r and -g options) -- in memory mode (Regular) sequential access finish: at 4 seconds # limit cputime unlimited filesize unlimited datasize 131072 kbytes stacksize 65536 kbytes coredumpsize unlimited memoryuse unlimited memorylocked 124248 kbytes maxproc 179 openfiles 360 >How-To-Repeat: to malloc(1024*1024, N), and try N > 64. >Fix: >Audit-Trail: >Unformatted:
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