Date: Wed, 15 Feb 2006 03:51:07 +0200 (EET) From: Dmitry Pryanishnikov <dmitry@atlantis.dp.ua> To: freebsd-current@freebsd.org Subject: Virtual memory consumption (both user and kernel) in modern CURRENT Message-ID: <20060215024339.N22450@atlantis.atlantis.dp.ua>
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Hello! I've got a relatively fresh (12-Feb-2006 14:20 UTC) CURRENT on my ASUS M5A notebook (CPU Pentium M 1.86GHz, 256 Mb memory), kernel config is: ftp://external.atlantis.dp.ua/FreeBSD/CURRENT/NOTEBOOK I have several questions regarding virtual memory use, both user-mode and kernel. 1) Is it normal that virtual memory size for almost every non-kernel process is close to 50Mb now: ftp://external.atlantis.dp.ua/FreeBSD/CURRENT/top.txt Is it miscalculation or real growth of virtual address space? 2) I can _trivially_ crash my box by extracting and deleting Openoffice.org distribution: cd /usr/ports/editors/openoffice.org-2.0 NOCLEANDEPENDS=yes make extract clean However, I can't obtain crash dump in most cases, see the picture: ftp://external.atlantis.dp.ua/FreeBSD/CURRENT/nodump.jpg Is it due to new ATA DMA dump code, or due to some other reason? I've never seen such dump failures before. 3) Once I was lucky enought to obtain a valid crash dump in this situation. Here is the backtrace: ftp://external.atlantis.dp.ua/FreeBSD/CURRENT/bt What tunables can I use to prevent this panic? Alas tuning(7) doesn't say anything about "mem_map too small". Is it tuning issue at all or a bug? Sincerely, Dmitry -- Atlantis ISP, System Administrator e-mail: dmitry@atlantis.dp.ua nic-hdl: LYNX-RIPE
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