[Bluez-users] hciemu lost its interface after I run att est

[Bluez-users] hciemu lost its interface after I run att est

[chenjian]

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hi guy, I experienced one issue, can anybody help? thanks!

1. setup 2 virtual hci interface hci0 and hci1
hciemu localhost:1000
hciemu localhost:2000
linux-l20w:~ # hciconfig
hci0:   Type: VHCI
        BD Address: 7F:00:00:01:03:E8 ACL MTU: 192:8 SCO MTU: 64:0
        UP RUNNING PSCAN ISCAN
        RX bytes:0 acl:0 sco:0 events:15 errors:0
        TX bytes:569 acl:0 sco:0 commands:15 errors:0

hci1:   Type: VHCI
        BD Address: 7F:00:00:01:07:D0 ACL MTU: 192:8 SCO MTU: 64:0
        UP RUNNING PSCAN ISCAN
        RX bytes:0 acl:0 sco:0 events:15 errors:0
        TX bytes:569 acl:0 sco:0 commands:15 errors:0

2. run attest
attest 7F:00:00:01:03:E8 10
the $? is equal 0
linux-l20w:~ # attest 7F:00:00:01:03:E8 10
Connecting to 7F:00:00:01:03:E8 on channel 10
linux-l20w:~ # echo $?
0
Everything is OK until now.

3. But hci1 is lost
But take a look at this:
linux-l20w:~ # hciconfig
hci0:   Type: VHCI
        BD Address: 7F:00:00:01:03:E8 ACL MTU: 192:8 SCO MTU: 64:0
        UP RUNNING PSCAN ISCAN
        RX bytes:0 acl:15 sco:0 events:22 errors:0
        TX bytes:797 acl:12 sco:0 commands:18 errors:0
hci1 is lost.

Otherinfo:
linux-l20w:~ # uname -r
2.6.16.21-38-smp

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Re: [Bluez-users] hciemu lost its interface after I run att est

[Marcel Holtmann]

Hi,

> hi guy, I experienced one issue, can anybody help? thanks!
> 
> 1. setup 2 virtual hci interface hci0 and hci1
> hciemu localhost:1000
> hciemu localhost:2000
> linux-l20w:~ # hciconfig
> hci0: Type: VHCI
> BD Address: 7F:00:00:01:03:E8 ACL MTU: 192:8 SCO MTU: 64:0
> UP RUNNING PSCAN ISCAN
> RX bytes:0 acl:0 sco:0 events:15 errors:0
> TX bytes:569 acl:0 sco:0 commands:15 errors:0
> 
> hci1: Type: VHCI
> BD Address: 7F:00:00:01:07:D0 ACL MTU: 192:8 SCO MTU: 64:0
> UP RUNNING PSCAN ISCAN
> RX bytes:0 acl:0 sco:0 events:15 errors:0
> TX bytes:569 acl:0 sco:0 commands:15 errors:0
> 
> 2. run attest
> attest 7F:00:00:01:03:E8 10
> the $? is equal 0
> linux-l20w:~ # attest 7F:00:00:01:03:E8 10
> Connecting to 7F:00:00:01:03:E8 on channel 10
> linux-l20w:~ # echo $?
> 0
> Everything is OK until now.
> 
> 3. But hci1 is lost
> But take a look at this:
> linux-l20w:~ # hciconfig
> hci0: Type: VHCI
> BD Address: 7F:00:00:01:03:E8 ACL MTU: 192:8 SCO MTU: 64:0
> UP RUNNING PSCAN ISCAN
> RX bytes:0 acl:15 sco:0 events:22 errors:0
> TX bytes:797 acl:12 sco:0 commands:18 errors:0
> hci1 is lost.
> 
> Otherinfo:
> linux-l20w:~ # uname -r
> 2.6.16.21-38-smp

I have no idea, but you might wanna check hciemu for a segmentation
fault or run it within a debugger.

Regards

Marcel



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