Re: badness in kernel/softirq.c

[Andrew Morton]

Brad Laue <brad@xxxxxxxxxx> wrote:
>
> Badness in local_bh_enable at kernel/softirq.c:126
>  Call Trace:
>   [<c0121d46>] local_bh_enable+0x86/0x90
>   [<d087ac3b>] ppp_sync_push+0x5b/0x170 [ppp_synctty]
>   [<d087a63d>] ppp_sync_wakeup+0x2d/0x60 [ppp_synctty]
>   [<c024363a>] do_tty_hangup+0x3ea/0x460
>   [<c0244bcd>] release_dev+0x62d/0x660
>   [<c0142d53>] unmap_page_range+0x43/0x70
>   [<c0168b62>] dput+0x22/0x210
>   [<c0244faa>] tty_release+0x2a/0x60
>   [<c0152ec0>] __fput+0x100/0x120
>   [<c0151529>] filp_close+0x59/0x90
>   [<c011f594>] put_files_struct+0x54/0xc0
>   [<c01201fd>] do_exit+0x18d/0x410
>   [<c012051a>] do_group_exit+0x3a/0xb0
>   [<c0109387>] syscall_call+0x7/0xb

This is reminding us that nobody has fixed the tty locking yet.  It's
generally harmless in practice.
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