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Subject: Re: [PATCH] kmemleak: Allow kmemleak to be built on powerpc
From: Michael Ellerman <michael@ellerman.id.au>
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Date: Thu, 16 Jul 2009 17:43:50 +1000
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On Thu, 2009-07-16 at 11:25 +1000, Michael Ellerman wrote:
> Very lightly tested, doesn't crash the kernel.
>=20
> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
> ---
>=20
> It doesn't look like we actually need to add any support in the
> arch code - or is there something I'm missing?

Hmm, I think we want to add annotations in lib/lmb.c don't we? That's
our low-level pre-bootmem allocator.

And we have the same problem with _edata as x86.

And I'm seeing lots (~250) of these:

unreferenced object 0xc0000000fcd2e2f0 (size 16):
  comm "swapper", pid 1, jiffies 4294892393
  backtrace:
    [<c00000000014d9c0>] .create_object+0x164/0x2a8
    [<c00000000014dc94>] .kmemleak_alloc+0x74/0x120
    [<c0000000001474d0>] .__kmalloc+0x20c/0x2ac
    [<c00000000036998c>] .kvasprintf+0x64/0xb0
    [<c000000000360558>] .kobject_set_name_vargs+0x44/0xb4
    [<c0000000003f06d0>] .dev_set_name+0x50/0x6c
    [<c00000000042a794>] .scsi_sysfs_device_initialize+0xd0/0x16c
    [<c000000000426600>] .scsi_alloc_sdev+0x1c4/0x284
    [<c000000000426b50>] .scsi_probe_and_add_lun+0x144/0xbd4
    [<c0000000004279bc>] .__scsi_scan_target+0xfc/0x658
    [<c000000000427f90>] .scsi_scan_channel+0x78/0xe8
    [<c0000000004280cc>] .scsi_scan_host_selected+0xcc/0x154
    [<c00000000042823c>] .do_scsi_scan_host+0xe8/0x10c
    [<c0000000004286ec>] .scsi_scan_host+0x250/0x294
    [<c000000000456ef8>] .ibmvscsi_probe+0x4f8/0x630
    [<c000000000027418>] .vio_bus_probe+0x360/0x3cc


cheers

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