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    SubjectRe: [PATCH] do_signal_stop: use signal_group_exit()
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    On Sun, 17 Feb 2008 21:11:14 MST, Eric W. Biederman said:
    > Oleg Nesterov <oleg@tv-sign.ru> 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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