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    SubjectRe: mmotm 2010-06-03-16-36 lots of suspected kmemleak
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    On Mon, 2010-06-07 at 11:00 +0100, Dave Young wrote:
    > On Mon, Jun 7, 2010 at 5:19 PM, Catalin Marinas <catalin.marinas@arm.com> wrote:
    > > On Mon, 2010-06-07 at 06:20 +0100, Dave Young wrote:
    > >> On Fri, Jun 4, 2010 at 9:55 PM, Dave Young <hidave.darkstar@gmail.com> wrote:
    > >> > On Fri, Jun 4, 2010 at 6:50 PM, Catalin Marinas <catalin.marinas@arm.com> wrote:
    > >> >> Dave Young <hidave.darkstar@gmail.com> wrote:
    > >> >>> With mmotm 2010-06-03-16-36, I gots tuns of kmemleaks
    > >> >>
    > >> >> Do you have CONFIG_NO_BOOTMEM enabled? I posted a patch for this but
    > >> >> hasn't been reviewed yet (I'll probably need to repost, so if it fixes
    > >> >> the problem for you a Tested-by would be nice):
    > >> >>
    > >> >> http://lkml.org/lkml/2010/5/4/175
    > >> >
    > >> >
    > >> > I'd like to test, but I can not access the test pc during weekend. So
    > >> > I will test it next monday.
    > >>
    > >> Bad news, the patch does not fix this issue.
    > >
    > > Thanks for trying. Could you please just disable CONFIG_NO_BOOTMEM and
    > > post the kmemleak reported leaks again?
    >
    > Still too many suspected leaks, results similar with
    > (CONFIG_NO_BOOTMEM = y && apply your patch), looks like a little
    > different from original ones? I just copy some of them here:
    >
    > unreferenced object 0xde3c7420 (size 44):
    > comm "bash", pid 1631, jiffies 4294897023 (age 223.573s)
    > hex dump (first 32 bytes):
    > 05 05 00 00 ad 4e ad de ff ff ff ff ff ff ff ff .....N..........
    > 98 42 d9 c1 00 00 00 00 50 fe 63 c1 10 32 8f dd .B......P.c..2..
    > backtrace:
    > [<c1498ad2>] kmemleak_alloc+0x4a/0x83
    > [<c10c1ace>] kmem_cache_alloc+0xde/0x12a
    > [<c10b421b>] anon_vma_fork+0x31/0x88
    > [<c102c71d>] dup_mm+0x1d3/0x38f
    > [<c102d20d>] copy_process+0x8ce/0xf39
    > [<c102d990>] do_fork+0x118/0x295
    > [<c1007fe0>] sys_clone+0x1f/0x24
    > [<c10029b1>] ptregs_clone+0x15/0x24
    > [<ffffffff>] 0xffffffff

    I'll try to test the mmotm kernel as well. I don't get any kmemleak
    reports with the 2.6.35-rc1 kernel.

    Can you send me your .config file? Do you have CONFIG_HUGETLBFS enabled?

    Thanks.

    --
    Catalin



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