Kernel panic on tty tear down - devpts_kill_index+19

Issue

• Kernel panic is observed with exception RIP: devpts_kill_index+19

crash> bt
PID: 13812  TASK: ffff8803b2ef8000  CPU: 0   COMMAND: "osa-sm"
 #0 [ffff880232f63968] machine_kexec at ffffffff8104c4cb
 #1 [ffff880232f639c8] crash_kexec at ffffffff810e1fe2
 #2 [ffff880232f63a98] oops_end at ffffffff8160c588
 #3 [ffff880232f63ac0] no_context at ffffffff815fd021
 #4 [ffff880232f63b10] __bad_area_nosemaphore at ffffffff815fd0b7
 #5 [ffff880232f63b58] bad_area_nosemaphore at ffffffff815fd221
 #6 [ffff880232f63b68] __do_page_fault at ffffffff8160f3ce
 #7 [ffff880232f63c68] do_page_fault at ffffffff8160f5ca
 #8 [ffff880232f63c90] page_fault at ffffffff8160b808
    [exception RIP: devpts_kill_index+19]
    RIP: ffffffff812446e3  RSP: ffff880232f63d40  RFLAGS: 00010282
    RAX: 0000000000000002  RBX: ffff8804260f6800  RCX: ffff880232f63fd8
    RDX: 0000000000000000  RSI: 0000000000000001  RDI: ffff880428237720
    RBP: ffff880232f63d50   R8: ffff8802e943a140   R9: 000000018040003f
    R10: ffffea000ba50e80  R11: ffffffff81393a6b  R12: 0000000000000001
    R13: ffff8800b2b71b01  R14: 0000000000000001  R15: ffff8804249eb0e0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #9 [ffff880232f63d58] pty_unix98_shutdown at ffffffff81395f88
#10 [ffff880232f63d68] release_tty at ffffffff8138aaa7
#11 [ffff880232f63d80] tty_release at ffffffff8138cdc4
#12 [ffff880232f63e28] __fput at ffffffff811c81b9
#13 [ffff880232f63e70] ____fput at ffffffff811c847e
#14 [ffff880232f63e80] task_work_run at ffffffff81093b54
#15 [ffff880232f63eb0] do_exit at ffffffff810745bb
#16 [ffff880232f63f40] do_group_exit at ffffffff81074dcf
#17 [ffff880232f63f70] sys_exit_group at ffffffff81074e44
#18 [ffff880232f63f80] sysenter_dispatch at ffffffff81615c4c
    RIP: 00000000f7747430  RSP: 00000000ffab146c  RFLAGS: 00000296
    RAX: 00000000000000fc  RBX: ffffffff81615c4c  RCX: 0000000000000000
    RDX: 0000000000000000  RSI: 0000000000000000  RDI: 00000000f7662270
    RBP: 00000000f7662270   R8: 0000000000000000   R9: 0000000000000000
    R10: 0000000000000000  R11: 0000000000000000  R12: ffffffff81074e44
    R13: ffff880232f63f78  R14: 0000000000000000  R15: 0000000000000000
    ORIG_RAX: 00000000000000fc  CS: 0023  SS: 002b