[linux-dvb] ifconfig locks on down - B2C2 flexcop.

stonewall at inebraska.com stonewall at inebraska.com
Tue Jul 12 20:37:21 CEST 2005


Johannes,

I'm not doing something correctly; I have set all the flags you indicated, 
recompiled and placed the new kernel in the proper place, rebooted, and then 
setup the test.

When I do SysRq-T - it just types a "t" on my screen; I Ctrl-C to stop the 
ifconfig, and then check dmesg, and nothing.

Stonewall

On Tuesday 12 July 2005 17:00, Johannes Stezenbach wrote:
> stonewall at inebraska.com wrote:
> > Using the 2.6.12.2 kernel, and the new flexcop driver, when I go to bring
> > my devices down so they can be unloaded (for reboot or otherwise), the:
> >
> > ifconfig <dev> down
> >
> > On the last device locks at the ifconfig.  It doesn't lock the machine,
> > and if this is being done from command line, it can be Ctrl-C out of . .
> > . but is problematic for reboots.
> >
> > This is using the B2C2 skystar2 card, using the latest b2c2_flexcop
> > drivers on the 2.6.12 kernel.  I have created several dvb0_? devices for
> > different PIDs. And it's always the *last* one that does the lock at
> > ifconfig down.  This did not occur with 2.6.11.11.
>
> You could build your kernel with CONFIG_MAGIC_SYSRQ=y,
> CONFIG_FRAME_POINTER=y and CONFIG_KALLSYMS_ALL=y, and
> when ifconfig hands press SysRq-T and post the calltrace
> of ifconfig (from dmesg output). Then we could see
> where it hangs.
>
> Johannes
>
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