Thanks Anssi - I was trying to do it remotely, and my window manager was
picking up on the last key.
Johannes - here is the dmesg output before I did a Ctrl-C to break out of the
errant ifconfig:
SysRq : Show State
ifconfig S 00000008 0 8226 8216 (NOTLB)
f4f0fdbc 00000082 f4f0fdac 00000008 00000001 f7f10000 00000208 c03d1c00
00000000 00004240 00000000 00001fff 00004240 00000000 20a35fff c2000520
00000000 000034eb e61ca35d 00000268 00000040 f7f1b020 f7f1b144 f8e76d9d
Call Trace:
[<c0370b28>] __down_interruptible+0xa8/0x128
[<c0370bc2>] __down_failed_interruptible+0xa/0x10
[<f8f1d801>] .text.lock.dvb_demux+0x1fb/0x31a [dvb_core]
[<f8f1cfbb>] dmx_section_feed_release_filter+0xab/0xd0 [dvb_core]
[<f8f23afa>] dvb_net_feed_stop+0x7a/0x1e0 [dvb_core]
[<c0304821>] dev_close+0xb1/0xc0
[<c0305f98>] dev_change_flags+0x58/0x130
[<c0348cc4>] devinet_ioctl+0x254/0x5c0
[<c034b194>] inet_ioctl+0x64/0xb0
[<c02faf98>] sock_ioctl+0xd8/0x210
[<c0171b31>] do_ioctl+0x81/0xa0
[<c0171d02>] vfs_ioctl+0x62/0x1d0
[<c0171eb1>] sys_ioctl+0x41/0x70
[<c01033b9>] syscall_call+0x7/0xb
Stonewall
On Tuesday 12 July 2005 17:00, Johannes Stezenbach wrote:
> stonewall@xxxxxxxxxxxxx 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
>
> _______________________________________________
>
> linux-dvb@xxxxxxxxxxx
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
