Messages in this thread |  | | Date | Sun, 16 Feb 2003 10:56:49 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: Fw: 2.5.61 oops running SDET |
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On Sun, 16 Feb 2003, Manfred Spraul wrote: > > Do you want to replace tasklist_lock with task_lock in exit_sighand() > and during exec, or do you want to add task_lock to tasklist_lock?
I'd rather replace it, but your point about irq-safeness is a good one. Clearly signal sending cannot take the task lock if we want to keep it irq-unsafe.
So the signal stuff probably does need to be protected by _both_ the tasklist lock and the provate task lock.
> Someone removed the read_lock(tasklist_lock) around > send_specific_sig_info() - which lock synchronizes exec and signal delivery?
Looks like none. And I think it was Ingo who removed it. Ingo?
Linus
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