Re: [PATCH] do_signal_stop: use signal_group_exit()

[Valdis . Kletnieks]

On Sun, 17 Feb 2008 21:11:14 MST, Eric W. Biederman said:
> Oleg Nesterov <oleg@xxxxxxxxxx> writes:
> > On 02/16, Oleg Nesterov wrote:
> >> On 02/15, Andrew Morton wrote:
> >> > : BUG: unable to handle kernel paging request at 0000000000200200

> >> > : Call Trace:
> >> > :  [<ffffffff80237727>] ? release_task+0x152/0x2e5
> >> > :  [<ffffffff80237f81>] ? do_wait+0x6c7/0xa1c
> >> > :  [<ffffffff8022f4cc>] ? default_wake_function+0x0/0xe
> >> > :  [<ffffffff8023e670>] ? sys_rt_sigaction+0x7a/0x98
> >> > :  [<ffffffff80238360>] ? sys_wait4+0x8a/0xa1
> >> > :  [<ffffffff8020be4b>] ? system_call_after_swapgs+0x7b/0x80

> Thanks.  Looks like we need to grab a lock there.
> At a quick skim I think we need the tty lock.

*ping* - Any further activity on this one?  I got bit by it as well on
the very first attempted boot of 25-rc2-mm1, the instant it tried to leave
single-user and go multi-user.

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