[Xen-devel] ARM: Issues while Enabling hibernation in domU(linux) on jacinto-j6

[moin anjnawala <moinanjnawala@xxxxxxxxx>]

Hi,

I am using xen4.6 and Linux-4.4 as dom0 and domU on Jacinto j6 board.
The system is able to boot and create domains successfully. Now, I am
trying to enable hibernation in domU. The hibernation seems to be
completed successfully. After hibernating domU and recreating domU. It
is able to resume but gives following error messages for vbd in kernel
logs

[  174.807287] PM: dpm_resume(): vbd-51712
[  174.842596] xenbus: Failed to release watch
/local/domain/0/backend/vbd/1/51712/state: -2
[  174.843560] xen:grant_table: WARNING: g.e. 0xd still in use!
[  174.843605] xen:grant_table: WARNING: g.e. 0x28 still in use!
[  174.843645] xen:grant_table: WARNING: g.e. 0x25 still in use!
[  174.843689] xen:grant_table: WARNING: g.e. 0x26 still in use!
[  174.843761] xen:grant_table: WARNING: g.e. 0x1a still in use!
[  174.843808] xen:grant_table: WARNING: g.e. 0x21 still in use!
[  174.843852] xen:grant_table: WARNING: g.e. 0x1c still in use!
[  174.843894] xen:grant_table: WARNING: g.e. 0x16 still in use!
[  174.843935] xen:grant_table: WARNING: g.e. 0x9 still in use!
[  174.843976] xen:grant_table: WARNING: g.e. 0xf still in use!
[  174.844014] xen:grant_table: WARNING: g.e. 0xa still in use!
[  174.844056] xen:grant_table: WARNING: g.e. 0x1e still in use!
[  174.844108] xen:grant_table: WARNING: g.e. 0xb still in use!
[  174.844156] xen:grant_table: WARNING: g.e. 0x15 still in use!
[  174.844202] xen:grant_table: WARNING: g.e. 0x13 still in use!
[  174.844238] xen:grant_table: WARNING: g.e. 0x12 still in use!
[  174.844273] xen:grant_table: WARNING: g.e. 0x18 still in use!
[  174.844310] xen:grant_table: WARNING: g.e. 0x17 still in use!
[  174.844389] xen:grant_table: WARNING: g.e. 0xc still in use!
[  174.844428] xen:grant_table: WARNING: g.e. 0x1f still in use!
[  174.844475] xen:grant_table: WARNING: g.e. 0x1d still in use!
[  174.844528] xen:grant_table: WARNING: g.e. 0x23 still in use!
[  174.844596] xen:grant_table: WARNING: g.e. 0x19 still in use!
[  174.844687] xen:grant_table: WARNING: g.e. 0x27 still in use!
[  174.844748] xen:grant_table: WARNING: g.e. 0x10 still in use!
[  174.844804] xen:grant_table: WARNING: g.e. 0x11 still in use!
[  174.844891] xen:grant_table: WARNING: g.e. 0x22 still in use!
[  174.844950] xen:grant_table: WARNING: g.e. 0x14 still in use!
[  174.845004] xen:grant_table: WARNING: g.e. 0xe still in use!
[  174.845073] xen:grant_table: WARNING: g.e. 0x24 still in use!
[  174.845136] xen:grant_table: WARNING: g.e. 0x20 still in use!
[  174.846577] xen:grant_table: WARNING: g.e. 0x8 still in use!
[  174.947857] vbd vbd-51712: 17 adding watch on
/local/domain/0/backend/vbd/2/51712/state
[  174.948226] vbd vbd-51712: failed to write error node for
device/vbd/51712 (17 adding watch on
/local/domain/0/backend/vbd/2/51712/state)
[  174.997890] xenbus: resume (watch_otherend) vbd-51712 failed: -17.
[  174.997941] dpm_run_callback(): xenbus_dev_resume+0x1/0x14c returns -17
[  174.997986] call vbd-51712+ returned -17 after 186165 usecs
[  174.998027] PM: Device vbd-51712 failed to restore: error -17

Later, domU boots and the console is active but it is not able to
execute any commands. It does nothing if any command is supplied to
it. After few minutes, it hangs and following messages are printed on
domU console

[  289.151021] xen:grant_table: g.e. 0x13 still pending
[  289.151068] xen:grant_table: g.e. 0x15 still pending
[  289.151097] xen:grant_table: g.e. 0x24 still pending
[  290.151017] xen:grant_table: g.e. 0xa still pending
[  290.151052] xen:grant_table: g.e. 0x25 still pending
[  290.151077] xen:grant_table: g.e. 0x1d still pending
[  290.151103] xen:grant_table: g.e. 0xc still pending
[  290.151146] xen:grant_table: g.e. 0x1e still pending
[  290.151184] xen:grant_table: g.e. 0x20 still pending
[  290.151209] xen:grant_table: g.e. 0xe still pending
[  290.151245] xen:grant_table: g.e. 0x22 still pending
[  290.151281] xen:grant_table: g.e. 0xf still pending
[  290.151306] xen:grant_table: g.e. 0x1b still pending
[  291.151015] xen:grant_table: g.e. 0x26 still pending
[  291.151049] xen:grant_table: g.e. 0x21 still pending
[  291.151073] xen:grant_table: g.e. 0x1f still pending
[  291.151096] xen:grant_table: g.e. 0x18 still pending
[  291.151137] xen:grant_table: g.e. 0x23 still pending
[  291.151177] xen:grant_table: g.e. 0x14 still pending
[  291.151201] xen:grant_table: g.e. 0x16 still pending
[  291.151241] xen:grant_table: g.e. 0xb still pending
[  291.151278] xen:grant_table: g.e. 0x1a still pending
[  291.151302] xen:grant_table: g.e. 0x9 still pending
[  292.151015] xen:grant_table: g.e. 0x28 still pending
[  292.151049] xen:grant_table: g.e. 0x12 still pending
[  292.151074] xen:grant_table: g.e. 0xd still pending
[  292.151099] xen:grant_table: g.e. 0x1c still pending
[  292.151140] xen:grant_table: g.e. 0x19 still pending
[  292.151176] xen:grant_table: g.e. 0x17 still pending
[  292.151201] xen:grant_table: g.e. 0x10 still pending
[  292.151240] xen:grant_table: g.e. 0x11 still pending
[  292.151264] xen:grant_table: g.e. 0x27 still pending
[  292.151302] xen:grant_table: g.e. 0x8 still pending

Please help me with any way to solve this issue and Thanks for any
help in advance

Regards,
Moinuddin

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel