[linux-dvb] ifconfig locks on down - B2C2 flexcop.
js at linuxtv.org
Tue Jul 12 19:00:59 CEST 2005
stonewall at inebraska.com wrote:
> Using the 220.127.116.11 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 18.104.22.168.
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.
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