[Bug 213201] [KAVERI] memory leak - unreferenced object 0xffff8881700cf988 (size 56)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=213201

--- Comment #5 from Erhard F. (erhard_f at mailbox.org) ---
Created attachment 297375
  --> https://bugzilla.kernel.org/attachment.cgi?id=297375&action=edit
kernel dmesg (4.4.271, AMD A10 PRO-7800B)

Bisecting was no success, but I traced the memory leak back to kernel 4.4.x
series.

Kernels v4.3.6 and v4.2.8 won't boot on the machine. But probably the leak has
been there since amdgpu got first introduced in kernel 4.2 anyhow.

[...]
unreferenced object 0xffff8803ecbef380 (size 56):
  comm "systemd-udevd", pid 222, jiffies 4294880256 (age 1158.457s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 0d 01 70 00 00 00 00 00  ..........p.....
    7b 58 01 00 00 c9 ff ff 00 00 00 00 00 00 00 00  {X..............
  backtrace:
    [<ffffffffa110c0c9>] create_object+0x162/0x280
    [<ffffffffa13d741a>] kmemleak_alloc+0x20/0x3c
    [<ffffffffa10fa921>] slab_post_alloc_hook+0x44/0x65
    [<ffffffffa10fc73a>] kmem_cache_alloc+0xbf/0xe2
    [<ffffffffa1263026>] acpi_os_acquire_object+0x28/0x2a
    [<ffffffffa126306f>] acpi_ps_alloc_op+0x39/0x69
    [<ffffffffa12622ff>] acpi_ps_create_op+0x105/0x234
    [<ffffffffa1261cf2>] acpi_ps_parse_loop+0x1db/0x586
    [<ffffffffa1262b62>] acpi_ps_parse_aml+0x93/0x265
    [<ffffffffa126335c>] acpi_ps_execute_method+0x14e/0x185
    [<ffffffffa125d96c>] acpi_ns_evaluate+0x1bf/0x25b
    [<ffffffffa12604a9>] acpi_evaluate_object+0x13c/0x24c
    [<ffffffffc075864e>] amdgpu_atcs_call+0x83/0xd9 [amdgpu]
    [<ffffffffc0758bdf>] amdgpu_acpi_init+0x62/0x4ef [amdgpu]
    [<ffffffffc06f6028>] amdgpu_driver_load_kms+0x83/0x103 [amdgpu]
    [<ffffffffc04445f1>] drm_dev_register+0x6d/0xae [drm]
unreferenced object 0xffff8803ecbeef00 (size 56):
  comm "systemd-udevd", pid 222, jiffies 4294880256 (age 1158.457s)
  hex dump (first 32 bytes):
    80 f3 be ec 03 88 ff ff 0d 01 2d 00 00 00 00 00  ..........-.....
    7c 58 01 00 00 c9 ff ff 00 00 00 00 00 00 00 00  |X..............
  backtrace:
    [<ffffffffa110c0c9>] create_object+0x162/0x280
    [<ffffffffa13d741a>] kmemleak_alloc+0x20/0x3c
    [<ffffffffa10fa921>] slab_post_alloc_hook+0x44/0x65
    [<ffffffffa10fc73a>] kmem_cache_alloc+0xbf/0xe2
    [<ffffffffa1263026>] acpi_os_acquire_object+0x28/0x2a
    [<ffffffffa126306f>] acpi_ps_alloc_op+0x39/0x69
    [<ffffffffa12622ff>] acpi_ps_create_op+0x105/0x234
    [<ffffffffa1261cf2>] acpi_ps_parse_loop+0x1db/0x586
    [<ffffffffa1262b62>] acpi_ps_parse_aml+0x93/0x265
    [<ffffffffa126335c>] acpi_ps_execute_method+0x14e/0x185
    [<ffffffffa125d96c>] acpi_ns_evaluate+0x1bf/0x25b
    [<ffffffffa12604a9>] acpi_evaluate_object+0x13c/0x24c
    [<ffffffffc075864e>] amdgpu_atcs_call+0x83/0xd9 [amdgpu]
    [<ffffffffc0758bdf>] amdgpu_acpi_init+0x62/0x4ef [amdgpu]
    [<ffffffffc06f6028>] amdgpu_driver_load_kms+0x83/0x103 [amdgpu]
    [<ffffffffc04445f1>] drm_dev_register+0x6d/0xae [drm]

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