Messages in this thread | | | Date | Thu, 15 Oct 2009 10:59:13 +0200 | Subject | Leaks in trace reported by kmemleak | From | Zdenek Kabelac <> |
| |
I've noticed your latest patch for memory leak in filter setting (8ad807318fcd...) - but even with this patch - kmemleak seems to still report lots (~900) of following leaks - note - they come only from i915 and kvm module - so I'm not sure if these two modules are doing something wrong or the problem is in trace code.
It looks like whole directory is somehow forgotten.
nreferenced object 0xffff880134b21268 (size 8): comm "modprobe", pid 1099, jiffies 4294881626 hex dump (first 8 bytes): 69 6e 74 00 01 88 ff ff int..... backtrace: [<ffffffff8140e986>] kmemleak_alloc+0x26/0x60 [<ffffffff81127943>] __kmalloc_track_caller+0x143/0x230 [<ffffffff81104385>] kstrdup+0x45/0x80 [<ffffffff810dd5c9>] trace_define_field+0x89/0x1b0 [<ffffffff810dd7bc>] trace_define_common_fields+0xcc/0x110 [<ffffffffa0370426>] ftrace_define_fields_i915_ring_wait_end+0x16/0x50 [i915] [<ffffffff810dcc53>] event_create_dir+0x93/0x480 [<ffffffff810dd13f>] trace_module_notify+0xff/0x500 [<ffffffff814247e8>] notifier_call_chain+0x78/0xb0 [<ffffffff8107f190>] __blocking_notifier_call_chain+0x60/0x90 [<ffffffff8107f1d6>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff810a0bfa>] sys_init_module+0xaa/0x260 [<ffffffff8100c11b>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff
...
unreferenced object 0xffff880134b21a78 (size 8): comm "modprobe", pid 1106, jiffies 4294881716 hex dump (first 8 bytes): 5f 5f 75 33 32 00 ff ff __u32... backtrace: [<ffffffff8140e986>] kmemleak_alloc+0x26/0x60 [<ffffffff81127943>] __kmalloc_track_caller+0x143/0x230 [<ffffffff81104385>] kstrdup+0x45/0x80 [<ffffffff810dd5c9>] trace_define_field+0x89/0x1b0 [<ffffffffa03cf802>] ftrace_define_fields_kvm_mmu_pagetable_walk+0x82/0x90 [kvm] [<ffffffff810dcc53>] event_create_dir+0x93/0x480 [<ffffffff810dd13f>] trace_module_notify+0xff/0x500 [<ffffffff814247e8>] notifier_call_chain+0x78/0xb0 [<ffffffff8107f190>] __blocking_notifier_call_chain+0x60/0x90 [<ffffffff8107f1d6>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff810a0bfa>] sys_init_module+0xaa/0x260 [<ffffffff8100c11b>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff
| |