New: kmemleak after suspend2ram in cpufreq driver
https://bugzilla.kernel.org/show_bug.cgi?id=16489
Summary: kmemleak after suspend2ram in cpufreq driver
Product: Power Management
Version: 2.5
Kernel Version: 2.6.35-rc6+
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
If I suspend2ram my ThinkPad T400 and wake it up, then /sys/kernel/debug/kmemleak contains an entry like this:
unreferenced object 0xf6788640 (size 64):
comm "modprobe", pid 1038, jiffies 4294676277 (age 7682.155s) hex dump (first 32 bytes):
00 00 00 00 e8 a2 24 00 01 00 00 00 00 9f 24 00 ......$.......$.
02 00 00 00 00 6a 18 00 03 00 00 00 00 35 0c 00 .....j.......5..
backtrace:
[<c122f8f7>] kmemleak_alloc+0x27/0x50
[<c109cb6f>] __kmalloc+0xcf/0x110
[<f94f87de>] acpi_cpufreq_cpu_init+0x1ee/0x4e4 [acpi_cpufreq]
[<c11c3a72>] cpufreq_add_dev+0x142/0x3a0
[<c1187e27>] sysdev_driver_register+0x97/0x110
[<c11c2a06>] cpufreq_register_driver+0x86/0x140
[<f94fc080>] 0xf94fc080
[<c100112d>] do_one_initcall+0x2d/0x180
[<c105ef29>] sys_init_module+0x99/0x1e0
[<c1002d97>] sysenter_do_call+0x12/0x26
[<ffffffff>] 0xffffffffWhat's interesting is that this entry only appears after the wakeup (and an additional wait time of usually 20 minutes) however the "age" is from the boot time of that system.
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[Bug 16489] kmemleak after suspend2ram in cpufreq driver
https://bugzilla.kernel.org/show_bug.cgi?id=16489
Toralf Förster <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Kernel Version|2.6.35-rc6+ |2.6.35.3
Signature · 3 lines
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[Bug 16489] kmemleak after suspend2ram in cpufreq driver
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=16489
--- Comment #1 from Toralf Förster <[email protected]> 2010-09-23 21:30:25 --- After s2ram and wakeup I got this BTW :
unreferenced object 0xe29f9d40 (size 64):
comm "default.sh", pid 15954, jiffies 1585745 (age 12642.714s) hex dump (first 32 bytes):
00 00 00 00 e8 a2 24 00 01 00 00 00 00 9f 24 00 ......$.......$.
02 00 00 00 00 6a 18 00 03 00 00 00 00 35 0c 00 .....j.......5..
backtrace:
[<c122fb97>] kmemleak_alloc+0x27/0x50
[<c109caff>] __kmalloc+0xcf/0x110
[<f95a87de>] acpi_cpufreq_cpu_init+0x1ee/0x4e4 [acpi_cpufreq]
[<c11c3cb2>] cpufreq_add_dev+0x142/0x3a0
[<c123ba46>] cpufreq_cpu_callback+0x5b/0x65
[<c104c895>] notifier_call_chain+0x35/0x60
[<c104c9a9>] __raw_notifier_call_chain+0x19/0x20
[<c103459f>] __cpu_notify+0x1f/0x40
[<c123a7bd>] _cpu_up+0xc1/0xfe
[<c122eff7>] enable_nonboot_cpus+0x77/0xb0
[<c105ffec>] suspend_devices_and_enter+0xec/0x190
[<c106015a>] enter_state+0xca/0xe0
[<c105f97b>] state_store+0x6b/0xb0
[<c1124560>] kobj_attr_store+0x20/0x30
[<c10e79c4>] sysfs_write_file+0x94/0xf0
[<c10a28ea>] vfs_write+0x9a/0x190Signature · 3 lines
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[Bug 16489] kmemleak after suspend2ram in cpufreq driver
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=16489
Toralf Förster <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Kernel Version|2.6.35.3 |2.6.35.5
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[Bug 16489] kmemleak after suspend2ram in cpufreq driver
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=16489
Toralf Förster <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Kernel Version|2.6.35.5 |2.6.35.6
Signature · 3 lines
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[Bug 16489] kmemleak after suspend2ram in cpufreq driver
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=16489
Toralf Förster <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |DUPLICATE--- Comment #2 from Toralf Förster <[email protected]> 2010-10-03 20:21:54 ---
*** This bug has been marked as a duplicate of bug 15807 ***
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[Bug 16489] kmemleak after suspend2ram in cpufreq driver
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=16489
Len Brown <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
CC| |[email protected]Signature · 3 lines
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