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    SubjectRe: mmotm 2010-06-03-16-36 lots of suspected kmemleak
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    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
    unreferenced object 0xde3c73f0 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.573s)
    hex dump (first 32 bytes):
    02 02 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
    unreferenced object 0xde3c73c0 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.573s)
    hex dump (first 32 bytes):
    02 02 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 e0 31 8f dd .B......P.c..1..
    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
    unreferenced object 0xde3c7570 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.573s)
    hex dump (first 32 bytes):
    02 02 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 e0 31 8f dd .B......P.c..1..
    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
    unreferenced object 0xde3c7390 (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 b0 31 8f dd .B......P.c..1..
    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
    unreferenced object 0xde3c7540 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.576s)
    hex dump (first 32 bytes):
    02 02 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 b0 31 8f dd .B......P.c..1..
    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
    unreferenced object 0xde3c7360 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.576s)
    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 40 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
    unreferenced object 0xde3c7330 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.576s)
    hex dump (first 32 bytes):
    02 02 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 40 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
    unreferenced object 0xde3c7510 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.576s)
    hex dump (first 32 bytes):
    03 03 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 90 30 8f dd .B......P.c..0..
    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
    unreferenced object 0xde3c75a0 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.576s)
    hex dump (first 32 bytes):
    02 02 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 60 30 8f dd .B......P.c.`0..
    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
    unreferenced object 0xde3c74b0 (size 44):
    comm "bash", pid 1631, jiffies 4294897023 (age 223.576s)
    hex dump (first 32 bytes):
    02 02 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 60 30 8f dd .B......P.c.`0..
    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
    unreferenced object 0xde3c7b70 (size 44):
    comm "ps", pid 1666, jiffies 4294897029 (age 223.560s)
    hex dump (first 32 bytes):
    04 04 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 70 7b 3c de .B......P.c.p{<.
    backtrace:
    [<c1498ad2>] kmemleak_alloc+0x4a/0x83
    [<c10c1ace>] kmem_cache_alloc+0xde/0x12a
    [<c10b42e4>] anon_vma_prepare+0x72/0x12e
    [<c10ad3e5>] handle_mm_fault+0x153/0x60d
    [<c14b5d3e>] do_page_fault+0x2ee/0x304
    [<c14b3a47>] error_code+0x6b/0x70
    [<ffffffff>] 0xffffffff
    unreferenced object 0xde3c7b40 (size 44):
    comm "ps", pid 1666, jiffies 4294897029 (age 223.560s)
    hex dump (first 32 bytes):
    04 04 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 40 7b 3c de .B......P.c.@{<.
    backtrace:
    [<c1498ad2>] kmemleak_alloc+0x4a/0x83
    [<c10c1ace>] kmem_cache_alloc+0xde/0x12a
    [<c10b42e4>] anon_vma_prepare+0x72/0x12e
    [<c10ad3e5>] handle_mm_fault+0x153/0x60d
    [<c14b5d3e>] do_page_fault+0x2ee/0x304
    [<c14b3a47>] error_code+0x6b/0x70
    [<c109b3ff>] generic_file_aio_read+0x398/0x5ce
    [<c10c85e5>] do_sync_read+0x8c/0xca
    [<c10c8fa3>] vfs_read+0x81/0xdb
    [<c10c9096>] sys_read+0x3b/0x60
    [<c14b340d>] syscall_call+0x7/0xb
    [<ffffffff>] 0xffffffff

    > Thanks.
    >
    > --
    > Catalin
    >
    >



    --
    Regards
    dave


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      Last update: 2010-06-07 12:03    [W:0.036 / U:1.024 seconds]
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