Why we have kernel panic with mentioning RIP : [unknown or invalid address] ?
Issue
We had a kernel panic with following traces :
#4 [ffff88003c93daa0] __bad_area_nosemaphore at ffffffff8104a295
#5 [ffff88003c93daf0] bad_area_nosemaphore at ffffffff8104a363
#6 [ffff88003c93db00] __do_page_fault at ffffffff8104aabf
#7 [ffff88003c93dc20] do_page_fault at ffffffff8152e37e
#8 [ffff88003c93dc50] page_fault at ffffffff8152b735
[exception RIP: unknown or invalid address]
RIP: ffff88003efde2c8 RSP: ffff88003c93dd00 RFLAGS: 00010206
RAX: ffff88003d74b350 RBX: ffff88003c93de68 RCX: ffff88003c93de68
RDX: 0000000000000000 RSI: ffff88003c93de68 RDI: ffff88003ef4f6c0
RBP: ffff88003c93ddd8 R8: 0000000000000003 R9: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88003abff021
R13: 0000000000000003 R14: 0000000000000003 R15: 0000000000000003
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#9 [ffff88003c93dd00] __link_path_walk at ffffffff811991a9
#10 [ffff88003c93dde0] path_walk at ffffffff8119a09a
#11 [ffff88003c93de20] filename_lookup at ffffffff8119a2ab
#12 [ffff88003c93de60] user_path_at at ffffffff8119b3d7
#13 [ffff88003c93df30] sys_chdir at ffffffff81186929
#14 [ffff88003c93df80] system_call_fastpath at ffffffff8100b072
RIP: 00007f7b48088f77 RSP: 00007fff2a1342d8 RFLAGS: 00010213
RAX: 0000000000000050 RBX: ffffffff8100b072 RCX: 00007f7b48088f77
RDX: 000000000000006e RSI: 0000000000000000 RDI: 00007f7b4ad2a28e
RBP: 00007fff2a134370 R8: 0000000000000000 R9: 0000000000000001
R10: 0000000000000001 R11: 0000000000000213 R12: 0000000000000003
R13: ffffffff00000012 R14: 00007f7b4ca0d540 R15: 000000000000000b
ORIG_RAX: 0000000000000050 CS: 0033 SS: 002b
Environment
- Red Hat Enterprise Linux - 6.5.
- [redirfs] Third party module.
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