Possible hang when activity on ACFS spikes using RH kernel 2.6.32

(Doc ID 2341464.1)

Last updated on JANUARY 23, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Linux x86-64

Symptoms

PID: 29975 TASK: ffff888050de6ab0 CPU: 42 COMMAND: "acfs_bast1"
0 [ffff887292de3240] schedule at ffffffff81548980
1 [ffff887292de3318] KsWaitEvent at ffffffffa04ad055 [oracleoks]
2 [ffff887292de33a8] odlm_wait_on_event at ffffffffa04bedab [oracleoks]
3 [ffff887292de33d8] convert_lock at ffffffffa04c23c7 [oracleoks]
4 [ffff887292de3438] odlm_cvt at ffffffffa04c2eaa [oracleoks]
5 [ffff887292de3508] OfsAcquireDLMLock_int at ffffffffa063fb18 [oracleacfs]
6 [ffff887292de3678] ofs_delete_inode at ffffffffa077e5eb [oracleacfs]
7 [ffff887292de36f8] generic_delete_inode at ffffffff811b812e
8 [ffff887292de3728] ofs_drop_inode at ffffffffa077ecef [oracleacfs]
9 [ffff887292de3768] iput at ffffffff811b70d2
10 [ffff887292de3788] ofs_d_iput at ffffffffa075b4ed [oracleacfs]
11 [ffff887292de37c8] dentry_iput at ffffffff811b39dc
12 [ffff887292de37e8] d_kill at ffffffff811b3b51
13 [ffff887292de3808] prune_one_dentry at ffffffff811b3c6a
14 [ffff887292de3828] __shrink_dcache_sb at ffffffff811b3f18
15 [ffff887292de38c8] shrink_dcache_memory at ffffffff811b4079
16 [ffff887292de3928] shrink_slab at ffffffff811479fa
17 [ffff887292de3988] do_try_to_free_pages at ffffffff81149d9f
18 [ffff887292de3a28] try_to_free_pages at ffffffff8114a245
19 [ffff887292de3ad8] __alloc_pages_nodemask at ffffffff8113e24d
20 [ffff887292de3c28] copy_process at ffffffff8107a218
21 [ffff887292de3cb8] do_fork at ffffffff8107b726
22 [ffff887292de3d78] kernel_thread at ffffffff8100c222
23 [ffff887292de3ed8] ofs_dlm_bast_handler at ffffffffa063b223 [oracleacfs]
24 [ffff887292de3f18] KsKthreadRun at ffffffffa04ad61f [oracleoks]
25 [ffff887292de3f48] kernel_thread at ffffffff8100c28a

  

 

Changes

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Cause

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