Re: 2.6.39-rc4+: Kernel leaking memory during FS scanning,regression?
From: Bruno PrÃmont
Date: Mon Apr 25 2011 - 08:11:32 EST
On Mon, 25 April 2011 Pekka Enberg wrote:
> On Mon, Apr 25, 2011 at 2:41 PM, Bruno PrÃmont wrote:
> >> Hm, seems not to be willing to let me run kmemleak... each time I put
> >> on my load scenario I get "BUG: unable to handle kernel " on console
> >> as a last breath from the system. (the rest of the trace never shows up)
> >>
> >> Going to try harder to get at least a complete trace...
> >
> > After many attempts I got something from kmemleak (running on VESAfb
> > instead of vgacon or nouveau KMS), netconsole disabled.
> > For the crashes my screen is just too small to display the interesting
> > part of it (maybe I can get it via serial console at a later attempt)
> >
...
> Btw, did you manage to grab any kmemleak related crashes? It
> would be good to get them fixed as well.
(after plugging in serial cable and hooking it to minicom)
With serial console I got the crash (unless more are waiting behind):
[ 290.477295] cc1 used greatest stack depth: 4972 bytes left
[ 304.476261] cc1plus used greatest stack depth: 4916 bytes left
[ 314.573703] BUG: unable to handle kernel NULL pointer dereference at 00000001
[ 314.580013] IP: [<c10b0aea>] kmem_cache_alloc+0x4a/0x120
[ 314.580013] *pde = 00000000
[ 314.580013] Oops: 0000 [#1]
[ 314.580013] last sysfs file: /sys/devices/platform/w83627hf.656/temp3_input
[ 314.580013] Modules linked in: squashfs zlib_inflate nfs lockd nfs_acl sunrpc snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd pcspkr snd_page_alloc
[ 314.580013]
[ 314.580013] Pid: 2119, comm: configure Tainted: G W 2.6.39-rc4-jupiter-00187-g686c4cb #3 NVIDIA Corporation. nFORCE-MCP/MS-6373
[ 314.580013] EIP: 0060:[<c10b0aea>] EFLAGS: 00210246 CPU: 0
[ 314.580013] EIP is at kmem_cache_alloc+0x4a/0x120
[ 314.580013] EAX: ddc25718 EBX: dd406100 ECX: c10b75f9 EDX: 00000000
[ 314.580013] ESI: 00000001 EDI: 000112d0 EBP: db1ebe34 ESP: db1ebe08
[ 314.580013] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 314.580013] Process configure (pid: 2119, ti=db1ea000 task=db144d00 task.ti=db1ea000)
[ 314.580013] Stack:
[ 314.580013] dc688510 c6df1690 c6df16a4 c10b75f9 db1ebe4c 00200286 00000000 001aa464
[ 314.580013] 000000d0 00000001 db31a738 db1ebe68 c10b75f9 00000000 000000d0 dc688510
[ 314.580013] 00000010 db1ebe5c c138aae7 000000d0 dd406280 000000d0 db31a738 000000d0
[ 314.580013] Call Trace:
[ 314.580013] [<c10b75f9>] ? create_object+0x29/0x210
[ 314.580013] [<c10b75f9>] create_object+0x29/0x210
[ 314.580013] [<c138aae7>] ? kmemleak_alloc+0x27/0x50
[ 314.580013] [<c138aae7>] kmemleak_alloc+0x27/0x50
[ 314.580013] [<c10b0b28>] kmem_cache_alloc+0x88/0x120
[ 314.580013] [<c10a60a0>] ? anon_vma_fork+0x50/0xe0
[ 314.580013] [<c10a6022>] ? anon_vma_clone+0x82/0xb0
[ 314.580013] [<c10a60a0>] anon_vma_fork+0x50/0xe0
[ 314.580013] [<c102c411>] dup_mm+0x1d1/0x440
[ 314.580013] [<c102d11d>] copy_process+0x98d/0xcc0
[ 314.580013] [<c102d4a7>] do_fork+0x57/0x2e0
[ 314.580013] [<c11c4cc4>] ? copy_to_user+0x34/0x130
[ 314.580013] [<c11c4cc4>] ? copy_to_user+0x34/0x130
[ 314.580013] [<c1008b6f>] sys_clone+0x2f/0x40
[ 314.580013] [<c139469d>] ptregs_clone+0x15/0x38
[ 314.580013] [<c13945d0>] ? sysenter_do_call+0x12/0x26
[ 314.580013] Code: 0f 85 8b 00 00 00 8b 03 8b 50 04 89 55 f0 8b 30 85 f6 0f 84 97 00 00 00 8b 03 8b 10 39 d6 75 e8 8b 50 04 39 55 f0 75 e0 8b 53 14 <8b> 14 16 89 10 8b 55 f0 8b 03 42 89 50 04 85 f6 89 f8 0f 95 c2
[ 314.580013] EIP: [<c10b0aea>] kmem_cache_alloc+0x4a/0x120 SS:ESP 0068:db1ebe08
[ 314.580013] CR2: 0000000000000001
[ 315.060947] BUG: unable to handle kernel NULL pointer dereference at 00000001
[ 315.070927] IP: [<c10b0aea>] kmem_cache_alloc+0x4a/0x120
[ 315.070927] *pde = 00000000
[ 315.070927] Oops: 0000 [#2]
[ 315.070927] last sysfs file: /sys/devices/platform/w83627hf.656/temp3_input
[ 315.070927] Modules linked in: squashfs zlib_inflate nfs lockd nfs_acl sunrpc snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd pcspkr snd_page_alloc
[ 315.070927]
[ 315.070927] Pid: 2119, comm: configure Tainted: G D W 2.6.39-rc4-jupiter-00187-g686c4cb #3 NVIDIA Corporation. nFORCE-MCP/MS-6373
[ 315.070927] EIP: 0060:[<c10b0aea>] EFLAGS: 00210046 CPU: 0
[ 315.070927] EIP is at kmem_cache_alloc+0x4a/0x120
[ 315.070927] EAX: ddc25718 EBX: dd406100 ECX: c10b75f9 EDX: 00000000
[ 315.070927] ESI: 00000001 EDI: 00011220 EBP: db1ebad0 ESP: db1ebaa4
[ 315.070927] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 315.070927] Process configure (pid: 2119, ti=db1ea000 task=db144d00 task.ti=db1ea000)
[ 315.070927] Stack:
[ 315.070927] 1d424de4 00000048 0060a459 00000000 49e0f2ff 00000007 0000000e 001aa464
[ 315.070927] 00000020 00000001 dc5d8630 db1ebb04 c10b75f9 00a8b6a4 00000000 69e595ce
[ 315.070927] 00000090 db144d00 db4248a0 db1ebb14 c1025d9f 00000020 dc5d8630 00000020
[ 315.070927] Call Trace:
[ 315.070927] [<c10b75f9>] create_object+0x29/0x210
[ 315.070927] [<c1025d9f>] ? check_preempt_wakeup+0xcf/0x160
[ 315.070927] [<c138aae7>] kmemleak_alloc+0x27/0x50
[ 315.070927] [<c10b0b28>] kmem_cache_alloc+0x88/0x120
[ 315.070927] [<c103c755>] __sigqueue_alloc+0x45/0xc0
[ 315.070927] [<c103d4cd>] T.792+0x9d/0x290
[ 315.070927] [<c103e234>] do_send_sig_info+0x44/0x60
[ 315.070927] [<c103e53a>] group_send_sig_info+0x3a/0x50
[ 315.070927] [<c103e60f>] kill_pid_info+0x2f/0x50
[ 315.070927] [<c1031843>] it_real_fn+0x33/0x80
[ 315.070927] [<c1031810>] ? alarm_setitimer+0x60/0x60
[ 315.070927] [<c104b1c4>] __run_hrtimer+0x64/0x1a0
[ 315.070927] [<c10503c5>] ? ktime_get+0x55/0xf0
[ 315.070927] [<c104b555>] hrtimer_interrupt+0x115/0x250
[ 315.070927] [<c104d415>] ? sched_clock_cpu+0x95/0x110
[ 315.070927] [<c10187a1>] smp_apic_timer_interrupt+0x41/0x80
[ 315.070927] [<c139417e>] apic_timer_interrupt+0x2a/0x30
[ 315.070927] [<c100519a>] ? oops_end+0x4a/0xb0
[ 315.070927] [<c101eb6e>] no_context+0xbe/0x150
[ 315.070927] [<c101ec8f>] __bad_area_nosemaphore+0x8f/0x130
[ 315.070927] [<c108b81d>] ? __alloc_pages_nodemask+0xdd/0x730
[ 315.070927] [<c105b222>] ? search_module_extables+0x62/0x80
[ 315.070927] [<c101ed42>] bad_area_nosemaphore+0x12/0x20
[ 315.070927] [<c101f2d1>] do_page_fault+0x2f1/0x3d0
[ 315.070927] [<c105a57b>] ? __module_text_address+0xb/0x50
[ 315.070927] [<c105a5c8>] ? is_module_text_address+0x8/0x10
[ 315.070927] [<c1045207>] ? __kernel_text_address+0x47/0x70
[ 315.070927] [<c1005441>] ? print_context_stack+0x41/0xb0
[ 315.070927] [<c101efe0>] ? vmalloc_sync_all+0x100/0x100
[ 315.070927] [<c139436c>] error_code+0x58/0x60
[ 315.070927] [<c10b75f9>] ? create_object+0x29/0x210
[ 315.070927] [<c101efe0>] ? vmalloc_sync_all+0x100/0x100
[ 315.070927] [<c10b0aea>] ? kmem_cache_alloc+0x4a/0x120
[ 315.070927] [<c10b75f9>] ? create_object+0x29/0x210
[ 315.070927] [<c10b75f9>] create_object+0x29/0x210
[ 315.070927] [<c138aae7>] ? kmemleak_alloc+0x27/0x50
[ 315.070927] [<c138aae7>] kmemleak_alloc+0x27/0x50
[ 315.070927] [<c10b0b28>] kmem_cache_alloc+0x88/0x120
[ 315.070927] [<c10a60a0>] ? anon_vma_fork+0x50/0xe0
[ 315.070927] [<c10a6022>] ? anon_vma_clone+0x82/0xb0
[ 315.070927] [<c10a60a0>] anon_vma_fork+0x50/0xe0
[ 315.070927] [<c102c411>] dup_mm+0x1d1/0x440
[ 315.070927] [<c102d11d>] copy_process+0x98d/0xcc0
[ 315.070927] [<c102d4a7>] do_fork+0x57/0x2e0
[ 315.070927] [<c11c4cc4>] ? copy_to_user+0x34/0x130
[ 315.070927] [<c11c4cc4>] ? copy_to_user+0x34/0x130
[ 315.070927] [<c1008b6f>] sys_clone+0x2f/0x40
[ 315.070927] [<c139469d>] ptregs_clone+0x15/0x38
[ 315.070927] [<c13945d0>] ? sysenter_do_call+0x12/0x26
[ 315.070927] Code: 0f 85 8b 00 00 00 8b 03 8b 50 04 89 55 f0 8b 30 85 f6 0f 84 97 00 00 00 8b 03 8b 10 39 d6 75 e8 8b 50 04 39 55 f0 75 e0 8b 53 14 <8b> 14 16 89 10 8b 55 f0 8b 03 42 89 50 04 85 f6 89 f8 0f 95 c2
[ 315.070927] EIP: [<c10b0aea>] kmem_cache_alloc+0x4a/0x120 SS:ESP 0068:db1ebaa4
[ 315.070927] CR2: 0000000000000001
[ 315.070927] ---[ end trace 009f60096033f2b2 ]---
[ 315.070927] Kernel panic - not syncing: Fatal exception in interrupt
[ 315.070927] Pid: 2119, comm: configure Tainted: G D W 2.6.39-rc4-jupiter-00187-g686c4cb #3
[ 315.070927] Call Trace:
[ 315.070927] [<c139244c>] panic+0x57/0x14c
[ 315.070927] [<c10051fb>] oops_end+0xab/0xb0
[ 315.070927] [<c101eb6e>] no_context+0xbe/0x150
[ 315.070927] [<c101ec8f>] __bad_area_nosemaphore+0x8f/0x130
[ 315.070927] [<c101ed42>] bad_area_nosemaphore+0x12/0x20
[ 315.070927] [<c101f234>] do_page_fault+0x254/0x3d0
[ 315.070927] [<c11e7a52>] ? bit_putcs+0x2a2/0x430
[ 315.070927] [<c101efe0>] ? vmalloc_sync_all+0x100/0x100
[ 315.070927] [<c139436c>] error_code+0x58/0x60
[ 315.070927] [<c10b75f9>] ? create_object+0x29/0x210
[ 315.070927] [<c101efe0>] ? vmalloc_sync_all+0x100/0x100
[ 315.070927] [<c10b0aea>] ? kmem_cache_alloc+0x4a/0x120
[ 315.070927] [<c10b75f9>] create_object+0x29/0x210
[ 315.070927] [<c1025d9f>] ? check_preempt_wakeup+0xcf/0x160
[ 315.070927] [<c138aae7>] kmemleak_alloc+0x27/0x50
[ 315.070927] [<c10b0b28>] kmem_cache_alloc+0x88/0x120
[ 315.070927] [<c103c755>] __sigqueue_alloc+0x45/0xc0
[ 315.070927] [<c103d4cd>] T.792+0x9d/0x290
[ 315.070927] [<c103e234>] do_send_sig_info+0x44/0x60
[ 315.070927] [<c103e53a>] group_send_sig_info+0x3a/0x50
[ 315.070927] [<c103e60f>] kill_pid_info+0x2f/0x50
[ 315.070927] [<c1031843>] it_real_fn+0x33/0x80
[ 315.070927] [<c1031810>] ? alarm_setitimer+0x60/0x60
[ 315.070927] [<c104b1c4>] __run_hrtimer+0x64/0x1a0
[ 315.070927] [<c10503c5>] ? ktime_get+0x55/0xf0
[ 315.070927] [<c104b555>] hrtimer_interrupt+0x115/0x250
[ 315.070927] [<c104d415>] ? sched_clock_cpu+0x95/0x110
[ 315.070927] [<c10187a1>] smp_apic_timer_interrupt+0x41/0x80
[ 315.070927] [<c139417e>] apic_timer_interrupt+0x2a/0x30
[ 315.070927] [<c100519a>] ? oops_end+0x4a/0xb0
[ 315.070927] [<c101eb6e>] no_context+0xbe/0x150
[ 315.070927] [<c101ec8f>] __bad_area_nosemaphore+0x8f/0x130
[ 315.070927] [<c108b81d>] ? __alloc_pages_nodemask+0xdd/0x730
[ 315.070927] [<c105b222>] ? search_module_extables+0x62/0x80
[ 315.070927] [<c101ed42>] bad_area_nosemaphore+0x12/0x20
[ 315.070927] [<c101f2d1>] do_page_fault+0x2f1/0x3d0
[ 315.070927] [<c105a57b>] ? __module_text_address+0xb/0x50
[ 315.070927] [<c105a5c8>] ? is_module_text_address+0x8/0x10
[ 315.070927] [<c1045207>] ? __kernel_text_address+0x47/0x70
[ 315.070927] [<c1005441>] ? print_context_stack+0x41/0xb0
[ 315.070927] [<c101efe0>] ? vmalloc_sync_all+0x100/0x100
[ 315.070927] [<c139436c>] error_code+0x58/0x60
[ 315.070927] [<c10b75f9>] ? create_object+0x29/0x210
[ 315.070927] [<c101efe0>] ? vmalloc_sync_all+0x100/0x100
[ 315.070927] [<c10b0aea>] ? kmem_cache_alloc+0x4a/0x120
[ 315.070927] [<c10b75f9>] ? create_object+0x29/0x210
[ 315.070927] [<c10b75f9>] create_object+0x29/0x210
[ 315.070927] [<c138aae7>] ? kmemleak_alloc+0x27/0x50
[ 315.070927] [<c138aae7>] kmemleak_alloc+0x27/0x50
[ 315.070927] [<c10b0b28>] kmem_cache_alloc+0x88/0x120
[ 315.070927] [<c10a60a0>] ? anon_vma_fork+0x50/0xe0
[ 315.070927] [<c10a6022>] ? anon_vma_clone+0x82/0xb0
[ 315.070927] [<c10a60a0>] anon_vma_fork+0x50/0xe0
[ 315.070927] [<c102c411>] dup_mm+0x1d1/0x440
[ 315.070927] [<c102d11d>] copy_process+0x98d/0xcc0
[ 315.070927] [<c102d4a7>] do_fork+0x57/0x2e0
[ 315.070927] [<c11c4cc4>] ? copy_to_user+0x34/0x130
[ 315.070927] [<c11c4cc4>] ? copy_to_user+0x34/0x130
[ 315.070927] [<c1008b6f>] sys_clone+0x2f/0x40
[ 315.070927] [<c139469d>] ptregs_clone+0x15/0x38
[ 315.070927] [<c13945d0>] ? sysenter_do_call+0x12/0x26
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