Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)

On Thu, Jun 07, 2007 at 01:29:23PM +1000, Benjamin Herrenschmidt wrote:
> But you use ptrace and don't steal signals with dequeue_signal() on a
> live other task, which is ok.

True.  However, with an SMP UML running a threaded app (which is also
threads on the host), if the thread on one CPU gets a signal which
will be nullified (SIGTRAP, SIG*ALRM, later SIGSEGV) and the other
thread continues running, does that count as stealing a signal from
another live task?

				Jeff

-- 
Work email - jdike at linux dot intel dot com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

References:
- Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes
  - From: Nicholas Miell <[email protected]>
- Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes
  - From: Davide Libenzi <[email protected]>
- Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes
  - From: Nicholas Miell <[email protected]>
- Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes
  - From: Davide Libenzi <[email protected]>
- signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
  - From: Nicholas Miell <[email protected]>
- Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
  - From: Benjamin Herrenschmidt <[email protected]>
- Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
  - From: Jeff Dike <[email protected]>
- Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
  - From: Paul Mackerras <[email protected]>
- Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
  - From: Jeff Dike <[email protected]>
- Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
  - From: Benjamin Herrenschmidt <[email protected]>

Prev by Date: Re: [patch] i386/x86_64: smp_call_function locking inconsistency
Next by Date: Re: 2.6.22-rc4-mm1
Previous by thread: Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
Next by thread: Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes)
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]