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Kernel Panicked At AfduhLookup+0x58/0xc0 [oracleafd] (Doc ID 2324940.1)

Last updated on APRIL 19, 2022

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Linux x86-64


RedHat 7.3 kernel 3.10.0-514.6.2.el7.x86_64 running on VMware experienced a kernel panic.

OS Vendor analyzed vmcore and determined it was due to kernel panicked at afduhLookup+0x58/0xc0 [oracleafd].


crash> bt
PID: 16672 TASK: ffff8807f3158040 CPU: 4 COMMAND: "oracle_16672_mb"
#0 [ffff8801698e3680] machine_kexec at ffffffff8103fdcb
#1 [ffff8801698e36e0] crash_kexec at ffffffff810d1dc2
#2 [ffff8801698e37b0] oops_end at ffffffff8154d110
#3 [ffff8801698e37e0] no_context at ffffffff810518cb
#4 [ffff8801698e3830] __bad_area_nosemaphore at ffffffff81051b55
#5 [ffff8801698e3880] bad_area at ffffffff81051c7e
#6 [ffff8801698e38b0] __do_page_fault at ffffffff81052483
#7 [ffff8801698e39d0] do_page_fault at ffffffff8154f09e
#8 [ffff8801698e3a00] page_fault at ffffffff8154c3a5
[exception RIP: afduhLookup+0x58]                                  <<<---------------------HERE
RIP: ffffffffa037be78 RSP: ffff8801698e3ab8 RFLAGS: 00010282
RAX: ffff880815b34ab8 RBX: 00000000803f3520 RCX: ffffffffa039bbd8
RDX: 0000000000000000 RSI: 0000000002000000 RDI: 0000000000000000
RBP: ffff8801698e3af8 R8: ffff8801698e3a58 R9: 0000000000004120
R10: ffff8801698e3c48 R11: 0000000000000001 R12: 0000000000004120
R13: ffff880816730208 R14: ffff880816730000 R15: 0000000000000200
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#9 [ffff8801698e3b00] afdt_lookup_hash at ffffffffa037d37b [oracleafd]
#10 [ffff8801698e3b30] afdp_current_proc at ffffffffa0389601 [oracleafd]
#11 [ffff8801698e3b90] afdp_get_pcontext at ffffffffa03899fe [oracleafd]
#12 [ffff8801698e3bd0] afdc_io at ffffffffa037ffb4 [oracleafd]
#13 [ffff8801698e3ce0] afdc_execute_ioctl at ffffffffa0382438 [oracleafd]
#14 [ffff8801698e3d70] afd_ioctl at ffffffffa03941cc [oracleafd]
#15 [ffff8801698e3dc0] __blkdev_driver_ioctl at ffffffff81286767
#16 [ffff8801698e3e00] blkdev_ioctl at ffffffff81286c2d
#17 [ffff8801698e3e50] block_ioctl at ffffffff811d66fc
#18 [ffff8801698e3e60] vfs_ioctl at ffffffff811af562
#19 [ffff8801698e3ea0] do_vfs_ioctl at ffffffff811af704
#20 [ffff8801698e3f30] sys_ioctl at ffffffff811afc81
#21 [ffff8801698e3f80] system_call_fastpath at ffffffff8100b0d2
RIP: 00000032b76e0a77 RSP: 00007ffca4c805e0 RFLAGS: 00010246
RAX: 0000000000000010 RBX: ffffffff8100b0d2 RCX: 000000015a9be690
RDX: 0000000010f8a1b0 RSI: 0000000000487606 RDI: 0000000000000007
RBP: 00007ffca4c7df30 R8: 0000000000000048 R9: 0101010101010101
R10: 00007ff394f798d8 R11: 0000000000000202 R12: 00007ff3952e69f0
R13: 00007ff3955f8260 R14: 00007ff3946c2000 R15: 0000000000000048
ORIG_RAX: 0000000000000010 CS: 0033 SS: 002b





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