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#2329 SFCB caused OOM kernel panic, possible mem leak

Memory_Leak
pending-duplicate
sfcb (1090)
5
2012-11-19
2012-01-30
Sarabjit S Saini
No

I'm using sfcb-1.3.12-52.ppcnf.

Sfcb caused an Out Of Memory (OOM) kernel panic due to a possible memory leak in code.
Looks like Sfcbd is consuming >55% of available system memory.

Here are the traces:-

crash> ps | grep sfcbd
1993 1 0 c3350c00 IN 0.2 31124 464 sfcbd
1994 1993 0 c3350810 RU 0.1 6500 288 sfcbd
1998 1 0 c2d2cc00 IN 0.2 31124 464 sfcbd
1999 1993 0 c4263c00 RU 0.2 14692 404 sfcbd
2000 1993 0 c325a420 IN 0.7 48536 1340 sfcbd
2006 1993 0 cbd2a030 IN 0.3 14932 528 sfcbd
2007 1993 0 c29b4420 IN 0.9 34528 1800 sfcbd
2011 1993 0 c2a9e420 IN 0.3 47728 596 sfcbd
2012 1993 0 c2a9e030 IN 0.9 34528 1800 sfcbd
2074 1993 0 c2468810 IN 25.3 73752 49216 sfcbd <- possible memory leak in this thread
2076 1993 0 c2b30030 IN 25.3 73752 49216 sfcbd <-possible memory leak in this thread
6216 1993 0 c1a7ac00 IN 2.6 35868 4976 sfcbd
6963 1993 0 c6d63c00 IN 2.6 35868 4976 sfcbd
23605 1999 0 c87df030 RU 0.3 16804 524 sfcbd
23645 1993 0 c6540c00 IN 2.6 35868 4976 sfcbd
23785 1993 0 c4d00810 IN 0.3 31380 592 sfcbd
23787 1999 0 c1f7cc00 RU 0.2 14828 444 sfcbd
23819 1999 0 c53bc030 RU 0.2 14828 428 sfcbd
23822 1993 0 c30ec810 IN 0.3 31380 592 sfcbd
23888 1993 0 c7956420 IN 0.3 14932 528 sfcbd
23889 1993 0 c82adc00 IN 2.6 35868 4976 sfcbd
23932 1993 0 c1a7a810 RU 0.3 33172 496 sfcbd
23940 1999 0 c1a1c030 RU 0.2 14692 404 sfcbd

#0 [c4807cb0] crash_save_current_state at c0008118
#1 [c4807cf0] __alloc_pages at c0048150
#2 [c4807d60] __do_page_cache_readahead at c0049b18
#3 [c4807df0] filemap_nopage at c0045084
#4 [c4807e20] __handle_mm_fault at c004f6f8
#5 [c4807e80] do_page_fault at c000c430
#6 [c4807f40] handle_page_fault at c0003334
instruction bus error [401] exception frame: (R13-R31 not saved)
R0: 00000001 R1: 35886690 R2: 3588e950 R3: 3588669c
R4: 100430e0 R5: 35886698 R6: 00000000 R7: 0f67e324
R8: 0002d000 R9: 00000000 R10: 00000000 R11: c02bf03c
R12: c4806000
NIP: 0f9416b4 MSR: 0002d000 OR3: 00000009 CTR: 00000000
LR: 10025048 XER: 20000000 CCR: 28002204 MQ: 00000000
DAR: 0f9416b4 DSISR: 00000000 Syscall Result: 00000000

Discussion

  • Chris Buccella
    Chris Buccella
    2012-11-19

    • status: open --> pending-duplicate
     
  • Chris Buccella
    Chris Buccella
    2012-11-19

    Likely addressed by 3588557 or 3497209