Memory leak report

From: Hubert Tonneau (hubert.tonneau_at_fullpliant.org)
Date: 01/28/05

  • Next message: Mike Galbraith: "Re: [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU_RATIO feature" 
    To: linux-kernel@vger.kernel.org
Date:	Fri, 28 Jan 2005 09:17:06 GMT

    I have a set of computers that seem to have memory leak under 2.6 kernels
    (2.6.9 and 2.6.10)

    The set of machines that suffer this memory leak are the ones using ICH5 SATA
    and Broadcom gigabit (tigon3) on PCI Express, as opposed to other machines with
    IDE and Intel gigabit. Both sets of machines use hyper threading.
    On all machines, the memory report below is after restarting all but init
    processes, so memory consumed by applications is less than 50 MB.

    /proc/meminfo just after booting:
    MemTotal: 906784 kB
    MemFree: 859228 kB
    Buffers: 1852 kB
    Cached: 15624 kB
    SwapCached: 0 kB
    Active: 27600 kB
    Inactive: 10640 kB
    HighTotal: 0 kB
    HighFree: 0 kB
    LowTotal: 906784 kB
    LowFree: 859228 kB
    SwapTotal: 0 kB
    SwapFree: 0 kB
    Dirty: 28 kB
    Writeback: 0 kB
    Mapped: 21492 kB
    Slab: 5640 kB
    CommitLimit: 453392 kB
    Committed_AS: 32532 kB
    PageTables: 80 kB
    VmallocTotal: 122804 kB
    VmallocUsed: 8160 kB
    VmallocChunk: 114416 kB

    /proc/meminfo after several days of intense activity (after restarting all
    user land processes except init):
    MemTotal: 906784 kB
    MemFree: 438796 kB
    Buffers: 9304 kB
    Cached: 14088 kB
    SwapCached: 0 kB
    Active: 273772 kB
    Inactive: 179304 kB
    HighTotal: 0 kB
    HighFree: 0 kB
    LowTotal: 906784 kB
    LowFree: 438796 kB
    SwapTotal: 0 kB
    SwapFree: 0 kB
    Dirty: 40 kB
    Writeback: 0 kB
    Mapped: 39700 kB
    Slab: 11256 kB
    CommitLimit: 453392 kB
    Committed_AS: 55308 kB
    PageTables: 120 kB
    VmallocTotal: 122804 kB
    VmallocUsed: 8160 kB
    VmallocChunk: 114416 kB

    Hardware of boxes having memory leak problems:
    8086 Intel Corporation 2580 915G/P/GV 0 Host Bridge / DRAM Controller
    8086 Intel Corporation 2581 915G/P/GV, 925X/XE? 0 Host-PCI Express Bridge
    8086 Intel Corporation 2582 82915G B Graphics device
    8086 Intel Corporation 2782 0
    8086 Intel Corporation 2660 82801FB/FR/FW/FRW 0 PCI Express Port 1
    8086 Intel Corporation 2662 82801FB/FR/FW/FRW 0 PCI Express Port 2
    8086 Intel Corporation 2658 82801FB/FR/FW/FRW 15 USB UHCI Controller
    8086 Intel Corporation 2659 82801FB/FR/FW/FRW 16 USB UHCI Controller
    8086 Intel Corporation 265A 82801FB/FR/FW/FRW 12 USB UHCI Controller
    8086 Intel Corporation 265B 82801FB/FR/FW/FRW 17 USB UHCI Controller
    8086 Intel Corporation 265C 82801FB/FR/FW/FRW 9 USB 2.0 EHCI Controller
    8086 Intel Corporation 244E 82801BA/CA/DB/DBL/Ex/Fx/FRW, 6300ESB 0 Hub Interface to PCI Bridge
    8086 Intel Corporation 266E 82801FB/FR/FW/FRW A AC '97 Audio Controller
    8086 Intel Corporation 2640 82801FB/FR 0 LPC Interface Bridge
    8086 Intel Corporation 266F 10
    8086 Intel Corporation 2651 82801FB/FW 14 SATA Controller
    8086 Intel Corporation 266A 82801FB/FR/FW/FRW A SMBus Controller
    14E4 Broadcom Corporation 1677 BCM5751 10 NetXtreme Gigabit Ethernet PCI Express

    Hardware of machines with no memory leak problems:
    8086 Intel Corporation 2570 82865G/PE/P, 82848P 0 DRAM Controller / Host-Hub Interface
    8086 Intel Corporation 2572 82865G B Integrated Graphics Device
    8086 Intel Corporation 24D2 82801EB/ER B USB UHCI Controller #1
    8086 Intel Corporation 24D7 82801EB/ER A USB UHCI Controller #3
    8086 Intel Corporation 24DE 82801EB/ER B USB UHCI Controller #4
    8086 Intel Corporation 24DD 82801EB/ER 9 USB EHCI Controller
    8086 Intel Corporation 244E 82801BA/CA/DB, 6300ESB 0 Hub Interface to PCI Bridge
    8086 Intel Corporation 24D0 82801EB/ER 0 LPC Interface Bridge
    8086 Intel Corporation 24DB 82801EB/ER 12 EIDE Controller
    8086 Intel Corporation 24D3 82801EB/ER 5 SMBus Controller
    8086 Intel Corporation 24D5 82801EB/ER 5 AC'97 Audio Controller
    8086 Intel Corporation 100E 82540EM 12 Gigabit Ethernet Controller

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  • Next message: Mike Galbraith: "Re: [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU_RATIO feature"

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