2 * Text: "The z/VM IUCV HVC device driver cannot be used without z/VM\n"
5 * The z/VM IUCV hypervisor console (HVC) device driver requires the
6 * z/VM inter-user communication vehicle (IUCV).
8 * Set "hvc_iucv=" to zero in the kernel parameter line and reboot Linux.
12 * Text: "%lu is not a valid value for the hvc_iucv= kernel parameter\n"
15 * @1: hvc_iucv_devices
17 * The "hvc_iucv=" kernel parameter specifies the number of z/VM IUCV
18 * hypervisor console (HVC) terminal devices.
19 * The parameter value ranges from 0 to 8.
20 * If zero is specified, the z/VM IUCV HVC device driver is disabled
21 * and no IUCV-based terminal access is available.
23 * Correct the "hvc_iucv=" setting in the kernel parameter line and
28 * Text: "Creating a new HVC terminal device failed with error code=%d\n"
33 * The device driver initialization failed to allocate a new
34 * HVC terminal device.
35 * A possible cause of this problem is memory constraints.
37 * If the error code is -12 (ENOMEM), consider assigning more memory
38 * to your z/VM guest virtual machine.
42 * Text: "Registering HVC terminal device as Linux console failed\n"
45 * The device driver initialization failed to set up the first HVC terminal
46 * device for use as Linux console.
48 * If the error code is -12 (ENOMEM), consider assigning more memory
49 * to your z/VM guest virtual machine.
53 * Text: "Registering IUCV handlers failed with error code=%d\n"
58 * The device driver initialization failed to register with z/VM IUCV to
59 * handle IUCV connections, as well as sending and receiving of IUCV messages.
61 * Check for related IUCV error messages and see the errno manual page
62 * to find out what caused the problem.
66 * Text: "Allocating memory failed with reason code=%d\n"
71 * The z/VM IUCV hypervisor console (HVC) device driver initialization failed,
72 * because of a general memory allocation failure. The reason code indicates
73 * the memory operation that has failed:
74 * kmem_cache (reason code=1),
75 * mempool (reason code=2), or
76 * hvc_iucv_allow= (reason code=3)
78 * Consider assigning more memory to your z/VM guest virtual machine.
82 * Text: "hvc_iucv_allow= does not specify a valid z/VM user ID list\n"
85 * The "hvc_iucv_allow=" kernel parameter specifies a comma-separated list
86 * of z/VM user IDs that are permitted to connect to the z/VM IUCV hypervisor
88 * The z/VM user IDs in the list must not exceed eight characters and must
91 * Correct the "hvc_iucv_allow=" setting in the kernel parameter line and reboot
96 * Text: "hvc_iucv_allow= specifies too many z/VM user IDs\n"
99 * The "hvc_iucv_allow=" kernel parameter specifies a comma-separated list
100 * of z/VM user IDs that are permitted to connect to the z/VM IUCV hypervisor
102 * The number of z/VM user IDs that are specified with the "hvc_iucv_allow="
103 * kernel parameter exceeds the maximum of 500.
105 * Correct the "hvc_iucv_allow=" setting by reducing the z/VM user IDs in
106 * the list and reboot Linux.
110 * Text: "A connection request from z/VM user ID %s was refused\n"
111 * Severity: Informational
115 * An IUCV connection request from another z/VM guest virtual machine has been
116 * refused. The request was from a z/VM guest virtual machine that is not
117 * listed by the "hvc_iucv_allow=" kernel parameter.
119 * Check the "hvc_iucv_allow=" kernel parameter setting.
120 * Consider adding the z/VM user ID to the "hvc_iucv_allow=" list in the kernel
121 * parameter line and reboot Linux.