[Xen-devel] guest with vnif assigned fail to bootup when disable apic

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Hi all
I found that when disable the apic(set apic=0 in config file), guest will hang 
at "get ip" when booting. This issue only exists when given vnif to guest. I 
don't see it with direct assigned NIC(VT-D device). And I found cs 22402 don't 
have this issue.

Here is the output from serial:
(XEN) irq.c:258: Dom11 PCI link 0 changed 5 -> 0
(XEN) irq.c:258: Dom11 PCI link 1 changed 10 -> 0
(XEN) irq.c:258: Dom11 PCI link 2 changed 11 -> 0
(XEN) irq.c:258: Dom11 PCI link 3 changed 5 -> 0
(XEN) irq.c:258: Dom11 PCI link 0 changed 0 -> 5
(XEN) irq.c:258: Dom11 PCI link 3 changed 0 -> 5
(XEN) grant_table.c:1315:d11 Fault while reading gnttab_query_size_t.
(XEN) grant_table.c:1315:d11 Fault while reading gnttab_query_size_t.
(XEN) irq.c:324: Dom11 callback via changed to GSI 5
[11142.207457] blkback: ring-ref 9, event-channel 5, protocol 1 (x86_32-abi)
(XEN) grant_table.c:1315:d11 Fault while reading gnttab_query_size_t.
[11142.307835] eth100: port 3(vif11.0) entering disabled state
[11142.325021] device vif11.0 left promiscuous mode
[11142.330108] eth100: port 3(vif11.0) entering disabled state


Qemu log:
domid: 11
config qemu network with xen bridge for  tap11.0 xenbr100
Strip off blktap sub-type prefix to /share/xvs/var/test.qcow (drv 'qcow')
Using file /share/xvs/var/test.qcow in read-write mode
Watching /local/domain/0/device-model/11/logdirty/cmd
Watching /local/domain/0/device-model/11/command
Watching /local/domain/11/cpu
char device redirected to /dev/pts/3
qemu_map_cache_init nr_buckets = 4000 size 327680
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = 740b2477-a323-b038-4cf8-3ff80639b995
Time offset set 0
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/11/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error. 
/vm/740b2477-a323-b038-4cf8-3ff80639b995/vncpasswd.
medium change watch on `hdc' (index: 1):
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
Log-dirty: no command yet.
vcpu-set: watch node error.
xs_read(/local/domain/11/log-throttling): read error
qemu: ignoring not-understood drive `/local/domain/11/log-throttling'
medium change watch on `/local/domain/11/log-throttling' - unknown device, 
ignored
char device redirected to /dev/pts/5
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
xen be: console-0: xen be: console-0: initialise() failed
initialise() failed
cirrus vga map change while on lfb mode
mapping vram to f0000000 - f0400000
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.

best regards
yang



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