Re: [Xen-devel] Trying to unmap invalid handle! pending_idx: @ drivers/net/xen-netback/netback.c:998 causes kernel panic/reboot

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Jul 14, 2014 at 11:15:00PM +0200, Armin Zentai wrote:
[...]
> I've run it on the vmlinux file, that I've made with make vmlinux.
> 
> [root@c2-node16 linux-3.15.4]# addr2line -e vmlinux ffffffffa02622fc
> ??:0
> 
> I think it does not found anything.
> 

AFAICT your netback is a loadable kernel module. Addr2line won't work...

Use gdb instead

# gdb PATH_TO/xen-netback.ko
(gdb) list *(xenvif_tx_action+0x27c)


> At the time we've found one VM that crashes its hypervisor in every evening
> at the same time, this virtual machine is belongs to one of our clients, but
> I'll try to get some info about a scheduled job or something that starts in
> that time.
> 

"Every evening at the same time", how exciting...

Wei.

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