Kernel panics in _ZNK8OpenFile28copyDataToPrevSnapshotNeededEjxx [mmfs26] with the error "BUG: unable to handle kernel paging request"

Issue

• Kernel panics in _ZNK8OpenFile28copyDataToPrevSnapshotNeededEjxx [mmfs26] with the error "BUG: unable to handle kernel paging request"

• Backtrace of panic task:

PID: 25376  TASK: ffff88017714d4c0  CPU: 2   COMMAND: "nfsd"
 #0 [ffff8801392c8e50] machine_kexec at ffffffff8103214b
 #1 [ffff8801392c8eb0] crash_kexec at ffffffff810b91c2
 #2 [ffff8801392c8f80] oops_end at ffffffff814f0cb0
 #3 [ffff8801392c8fb0] no_context at ffffffff810423fb
 #4 [ffff8801392c9000] __bad_area_nosemaphore at ffffffff81042685
 #5 [ffff8801392c9050] bad_area_nosemaphore at ffffffff81042753
 #6 [ffff8801392c9060] __do_page_fault at ffffffff81042e0d
 #7 [ffff8801392c9180] do_page_fault at ffffffff814f2c8e
 #8 [ffff8801392c91b0] page_fault at ffffffff814f0045
    [exception RIP: _ZNK8OpenFile28copyDataToPrevSnapshotNeededEjxx+692]
    RIP: ffffffffa08024a4  RSP: ffff8801392c9260  RFLAGS: 00010206
    RAX: 0000000000000059  RBX: 0000000000000000  RCX: 000000000000002a
    RDX: 0000040000000000  RSI: 0000000000000059  RDI: ffffc9007d16fa80
    RBP: 0000000000001655   R8: ffffc9004630ff28   R9: 0000000000000059
    R10: 0000000000001655  R11: 0000000000000015  R12: ffffc9006c186148
    R13: 00000000000056e8  R14: 0000000000001655  R15: 0000000000001655
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #9 [ffff8801392c92c8] _Z9gpfsWriteP13gpfsVfsData_tP15KernelOperationP9cxiNode_tiP8cxiUio_tP9MMFSVInfoP10cxiVattr_tSA_P10ext_cred_tPvi at ffffffffa079f343 [mmfs26]
#10 [ffff8801392c9758] rdwrInternal at ffffffffa048a8ca [mmfslinux]
#11 [ffff8801392c98d8] gpfs_f_aio_write at ffffffffa0493a2c [mmfslinux]
#12 [ffff8801392c9a18] do_sync_readv_writev at ffffffff811765fb
#13 [ffff8801392c9b48] do_readv_writev at ffffffff8117768f
#14 [ffff8801392c9c28] vfs_writev at ffffffff811777f6
#15 [ffff8801392c9c38] nfsd_vfs_write at ffffffffa06963d5 [nfsd]
#16 [ffff8801392c9d08] nfsd_write at ffffffffa0698ed7 [nfsd]
#17 [ffff8801392c9d68] nfsd3_proc_write at ffffffffa06a07ef [nfsd]
#18 [ffff8801392c9dd8] nfsd_dispatch at ffffffffa069143e [nfsd]
#19 [ffff8801392c9e18] svc_process_common at ffffffffa0329534 [sunrpc]
#20 [ffff8801392c9e98] svc_process at ffffffffa0329b70 [sunrpc]
#21 [ffff8801392c9eb8] nfsd at ffffffffa0691b62 [nfsd]
#22 [ffff8801392c9ee8] kthread at ffffffff810909c6
#23 [ffff8801392c9f48] kernel_thread at ffffffff8100c14a