Re: 2.6.0-test10: Badness in local_bh_enable atkernel/softirq.c:121

[Andrew Morton]

Christian Schlittchen <corwin@xxxxxxxxxxxxxxxxxx> wrote:
>
> 
> When trying to establish a ppp/pppoe connection I get the following
> and the connection fails:
> 
> Badness in local_bh_enable at kernel/softirq.c:121
> Call Trace:
> [<c011feac>] local_bh_enable+0x8c/0x90
> [<e096ccae>] ppp_sync_push+0x6e/0x1a0 [ppp_synctty]
> [<c015cdc0>] __lookup_hash+0x70/0xd0
> [<e096c651>] ppp_sync_wakeup+0x31/0x70 [ppp_synctty]
> [<c0207b79>] pty_unthrottle+0x59/0x60
> [<c02043ba>] check_unthrottle+0x3a/0x40
> [<c0204463>] n_tty_flush_buffer+0x13/0x60
> [<c0207f6d>] pty_flush_buffer+0x6d/0x70
> [<c0200c0e>] do_tty_hangup+0x3fe/0x460

The warning is a pest, and is due to do_tty_hangup() bogusly disabling
interrupts in the hope that it does something useful.  It needs to be fixed
up.

But it is unrelated to the PPP failure.  I'm afraid it is so long since I
used PPP and pppd that I cannot suggest how you should set about gathering
extra info on that.

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